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Artykuły w czasopismach na temat "Energy Storage Materials Metal-Sulfur Batteries"
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Xie, Xing-Chen, Ke-Jing Huang i Xu Wu. "Metal–organic framework derived hollow materials for electrochemical energy storage". Journal of Materials Chemistry A 6, nr 16 (2018): 6754–71. http://dx.doi.org/10.1039/c8ta00612a.
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The recent progress and major challenges/opportunities of MOF-derived hollow materials for energy storage are summarized in this review, particularly for lithium-ion batteries, sodium-ion batteries, lithium–Se batteries, lithium–sulfur batteries and supercapacitor applications.
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Chen, Liping, Xifei Li i Yunhua Xu. "Recent advances of polar transition-metal sulfides host materials for advanced lithium–sulfur batteries". Functional Materials Letters 11, nr 06 (grudzień 2018): 1840010. http://dx.doi.org/10.1142/s1793604718400106.
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Lithium sulfur batteries (LSBs) have been one of the most promising second batteries for energy storage. However, the commercialization of LSBs is still hindered by low sulfur utilization and poor cycling stability, resulting from shuttle effect and low redox kinetics of lithium polysulfides (LiPSs). Significant progress has been made over the years in enhancing the batteries performances and tap density with the transition-metal sulfides as sulfur host or additive in LSBs. In this review, we present the recent advances in the use of various nanostructured transition-metal sulfides applied in LSBs, and also focus on the interaction mechanisms of polar transition-metal sulfides with LiPSs and its catalysis for the redox of LiPSs. It may provide avenues for the application of transition-metal sulfides in LSBs. The challenges and perspectives of transition-metal sulfides are also addressed.
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Zhu, Mengqi, Songmei Li, Bin Li i Shubin Yang. "A liquid metal-based self-adaptive sulfur–gallium composite for long-cycling lithium–sulfur batteries". Nanoscale 11, nr 2 (2019): 412–17. http://dx.doi.org/10.1039/c8nr08625g.
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Wang, Jie, Ping Nie, Bing Ding, Shengyang Dong, Xiaodong Hao, Hui Dou i Xiaogang Zhang. "Biomass derived carbon for energy storage devices". Journal of Materials Chemistry A 5, nr 6 (2017): 2411–28. http://dx.doi.org/10.1039/c6ta08742f.
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Biomass-derived carbon materials have received extensive attention as electrode materials for energy storage devices, including electrochemical capacitors, lithium–sulfur batteries, lithium-ion batteries, and sodium-ion batteries.
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Huang, Zongle, Wenting Sun, Zhipeng Sun, Run Ding i Xuebin Wang. "Graphene-Based Materials for the Separator Functionalization of Lithium-Ion/Metal/Sulfur Batteries". Materials 16, nr 12 (18.06.2023): 4449. http://dx.doi.org/10.3390/ma16124449.
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With the escalating demand for electrochemical energy storage, commercial lithium-ion and metal battery systems have been increasingly developed. As an indispensable component of batteries, the separator plays a crucial role in determining their electrochemical performance. Conventional polymer separators have been extensively investigated over the past few decades. Nevertheless, their inadequate mechanical strength, deficient thermal stability, and constrained porosity constitute serious impediments to the development of electric vehicle power batteries and the progress of energy storage devices. Advanced graphene-based materials have emerged as an adaptable solution to these challenges, owing to their exceptional electrical conductivity, large specific surface area, and outstanding mechanical properties. Incorporating advanced graphene-based materials into the separator of lithium-ion and metal batteries has been identified as an effective strategy to overcome the aforementioned issues and enhance the specific capacity, cycle stability, and safety of batteries. This review paper provides an overview of the preparation of advanced graphene-based materials and their applications in lithium-ion, lithium-metal, and lithium-sulfur batteries. It systematically elaborates on the advantages of advanced graphene-based materials as novel separator materials and outlines future research directions in this field.
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Wang, Yanjie, Yingjie Zhang, Hongyu Cheng, Zhicong Ni, Ying Wang, Guanghui Xia, Xue Li i Xiaoyuan Zeng. "Research Progress toward Room Temperature Sodium Sulfur Batteries: A Review". Molecules 26, nr 6 (11.03.2021): 1535. http://dx.doi.org/10.3390/molecules26061535.
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Lithium metal batteries have achieved large-scale application, but still have limitations such as poor safety performance and high cost, and limited lithium resources limit the production of lithium batteries. The construction of these devices is also hampered by limited lithium supplies. Therefore, it is particularly important to find alternative metals for lithium replacement. Sodium has the properties of rich in content, low cost and ability to provide high voltage, which makes it an ideal substitute for lithium. Sulfur-based materials have attributes of high energy density, high theoretical specific capacity and are easily oxidized. They may be used as cathodes matched with sodium anodes to form a sodium-sulfur battery. Traditional sodium-sulfur batteries are used at a temperature of about 300 °C. In order to solve problems associated with flammability, explosiveness and energy loss caused by high-temperature use conditions, most research is now focused on the development of room temperature sodium-sulfur batteries. Regardless of safety performance or energy storage performance, room temperature sodium-sulfur batteries have great potential as next-generation secondary batteries. This article summarizes the working principle and existing problems for room temperature sodium-sulfur battery, and summarizes the methods necessary to solve key scientific problems to improve the comprehensive energy storage performance of sodium-sulfur battery from four aspects: cathode, anode, electrolyte and separator.
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Ikram, Rabia, Badrul Mohamed Jan, Syed Atif Pervez, Vassilis M. Papadakis, Waqas Ahmad, Rani Bushra, George Kenanakis i Masud Rana. "Recent Advancements of N-Doped Graphene for Rechargeable Batteries: A Review". Crystals 10, nr 12 (26.11.2020): 1080. http://dx.doi.org/10.3390/cryst10121080.
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Graphene, a 2D carbon structure, due to its unique materials characteristics for energy storage applications has grasped the considerable attention of scientists. The highlighted properties of this material with a mechanically robust and highly conductive nature have opened new opportunities for different energy storage systems such as Li-S (lithium-sulfur), Li-ion batteries, and metal-air batteries. It is necessary to understand the intrinsic properties of graphene materials to widen its large-scale applications in energy storage systems. In this review, different routes of graphene synthesis were investigated using chemical, thermal, plasma, and other methods along with their advantages and disadvantages. Apart from this, the applications of N-doped graphene in energy storage devices were discussed.
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Song, Zihui, Wanyuan Jiang, Xigao Jian i Fangyuan Hu. "Advanced Nanostructured Materials for Electrocatalysis in Lithium–Sulfur Batteries". Nanomaterials 12, nr 23 (6.12.2022): 4341. http://dx.doi.org/10.3390/nano12234341.
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Lithium–sulfur (Li-S) batteries are considered as among the most promising electrochemical energy storage devices due to their high theoretical energy density and low cost. However, the inherently complex electrochemical mechanism in Li-S batteries leads to problems such as slow internal reaction kinetics and a severe shuttle effect, which seriously affect the practical application of batteries. Therefore, accelerating the internal electrochemical reactions of Li-S batteries is the key to realize their large-scale applications. This article reviews significant efforts to address the above problems, mainly the catalysis of electrochemical reactions by specific nanostructured materials. Through the rational design of homogeneous and heterogeneous catalysts (including but not limited to strategies such as single atoms, heterostructures, metal compounds, and small-molecule solvents), the chemical reactivity of Li-S batteries has been effectively improved. Here, the application of nanomaterials in the field of electrocatalysis for Li-S batteries is introduced in detail, and the advancement of nanostructures in Li-S batteries is emphasized.
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Wang, Ying, Rui Ai, Fei Wang, Xiuqiong Hu, Yuejing Zeng, Jiyue Hou, Jinbao Zhao, Yingjie Zhang, Yiyong Zhang i Xue Li. "Research Progress on Multifunctional Modified Separator for Lithium–Sulfur Batteries". Polymers 15, nr 4 (16.02.2023): 993. http://dx.doi.org/10.3390/polym15040993.
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Lithium–sulfur batteries (LSBs) are recognized as one of the second-generation electrochemical energy storage systems with the most potential due to their high theoretical specific capacity of the sulfur cathode (1675 mAhg−1), abundant elemental sulfur energy storage, low price, and green friendliness. However, the shuttle effect of polysulfides results in the passivation of the lithium metal anode, resulting in a decrease in battery capacity, Coulombic efficiency, and cycle stability, which seriously restricts the commercialization of LSBs. Starting from the separator layer before the positive sulfur cathode and lithium metal anode, introducing a barrier layer for the shuttle of polysulfides is considered an extremely effective research strategy. These research strategies are effective in alleviating the shuttle of polysulfide ions, improving the utilization of active materials, enhancing the battery cycle stability, and prolonging the cycle life. This paper reviews the research progress of the separator functionalization in LSBs in recent years and the research trend of separator functionalization in the future is predicted.
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Chung, Sheng-Heng, i Cun-Sheng Cheng. "(Digital Presentation) A Design of Nickel/Sulfur Energy-Storage Materials for Electrochemical Lithium-Sulfur Cells". ECS Meeting Abstracts MA2022-02, nr 4 (9.10.2022): 542. http://dx.doi.org/10.1149/ma2022-024542mtgabs.
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Introduction As one of the next-generation rechargeable battery technologies beyond the lithium-ion chemistry, the lithium-sulfur chemistry enables the low-cost sulfur cathode to generate a high theoretical capacity of 1,675 mAh g-1 (10 times higher capacity than those of lithium-ion battery cathode). It further exhibits a high theoretical energy density of 2,600 Wh kg-1 in lithium-sulfur batteries (2–3 times higher energy density than lithium-ion batteries). However, as reported in recent publications, the development is far from adequate with respect to the high-loading sulfur cathode with high active-material content in building advanced lithium-sulfur batteries with a high energy density. The material challenges result from the use of an insulating sulfur as the active material, which would generate lithium polysulfides that can easily diffuse out from the cathode. The high cathode resistance and fast loss of the active material lead to the poor electrochemical utilization and efficiency of lithium-sulfur battery cathodes. These negative impacts subsequent derive the additional electrochemical challenges. A high amount of conductive and porous substrates is added in the cathode to replace the active material, which results in the limited amount of sulfur in the cathode and further blocks the improvement of designing high-energy-density sulfur cathodes. To address the above-mentioned issues, the research progresses of high-performance sulfur cathodes aim to design functional host for sulfur cathodes with the use of carbon for high conductivity, polymers for high ionic transfer, porous materials for physical polysulfide retention, polar materials for chemical polysulfide adsorption, catalysts for high reaction kinetics, etc. However, metallic materials that naturally have high conductivity, strong polysulfide adsorption capability, and catalytic conversion ability, are rarely reported. This is because metals have the highest density as compared to the aforementioned host materials, which commonly causes an insufficient amount of active material in the cathode and therefore inhibits the design of metal-sulfur nanocomposite in sulfur cathodes. To explore the metal/sulfur nanocomposite as a new research trend in sulfur cathodes, we propose a design for a nickel/sulfur nanocomposite as a novel energy-storage material by the electroless nickel plating method, and discuss its applications in lithium–sulfur battery cathodes. The nickel/sulfur energy-storage material possesses metallic nickel on the surface of the insulating sulfur particles as a result of the reduction of nickel ions during autocatalytic plating. By controlling the synthesis and fabrications conditions, the nickel/sulfur energy-storage material attains adjustable high sulfur contents of 60–95 wt% and adjustable high sulfur loadings of 2–10 mg cm−2 in the resulting cathode. The high-loading cathode with the nickel/sulfur energy-storage material demonstrates high electrochemical utilization and stability, which attains a high areal capacity of 8.2 mA∙h cm−2, an energy density of 17.3 mW∙h cm−2, and a stable cyclability for 100 cycles. Results and Discussion Here, in our presentation, we discuss our novel method for the fabrication of nickel/sulfur energy-storage material as an advanced composite cathode material for exploring battery electrochemistry and battery engineering. We adopt a modified electroless-plating method to synthesize nickel/sulfur energy-storage materials characterized by adjustable high sulfur contents and promising cathode performance. The plated nickel coating provides the nickel/sulfur energy-storage materials with metallic conductivity and polysulfide adsorption ability, which addresses the two major issues of sulfur cathodes.[1,2] Therefore, the nickel/sulfur energy-storage material attains high sulfur contents in the cathode and exhibits a high charge-storage capacity of 1,362 mA∙h g−1 and an excellent cyclability for 100 cycles. Moreover, the nickel/sulfur energy-storage material enables high-loading sulfur cathodes with a sulfur loading of 10 mg cm−2, a high areal capacity of 8.2 mA∙h cm−2, and an energy density of 17.3 mW∙h cm−2. Conclusion In summary, the summary of our nickel/sulfur energy-storage materials presented in this presentation would demonstrate a light-weight metallic nickel coating technique for fast charge transfer and strong polysulfide retention in the sulfur nanocomposites composite sulfur cathode. Moreover, our systematic analysis of the nickel/sulfur energy-storage materials exhibits their achievements in attaining both high electrochemical designs of high sulfur content and loading as well as possessing high energy density and electrochemical stability. References C.-S. Cheng, S.-H. Chung, Chem. Eng. J. 2022, 429, 132257. C.-S. Cheng, S.-H. Chung, Batter. Supercaps 2022, 5, e202100323.
Rozprawy doktorskie na temat "Energy Storage Materials Metal-Sulfur Batteries"
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Dirlam, Philip Thomas, i Philip Thomas Dirlam. "Preparation of Electroactive Materials for High Performance Lithium-Sulfur Batteries". Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/621564.
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This dissertation is comprised of five chapters detailing advances in the synthesis and preparation of polymers and materials and the application of these materials in lithium-sulfur batteries for next-generation energy storage technology. The research described herein discusses progress towards overcoming three critical challenges presented for optimizing Li-S battery performance, specifically, addressing the highly electrically insulating nature of elemental sulfur, extending the cycling lifetime of Li-S batteries, and enhancing the charge discharge rate capability of Li-S cathodes. The first chapter is a review highlighting the use of polymers in conventional lithium-sulfur battery cathodes. Li-S battery technology presents a grand opportunity to realize an electrochemical energy storage system with high enough capacity and energy density capable of addressing the needs presented by electrical vehicles and base load storage. Polymers are ubiquitous throughout conventional Li-S batteries and their use has been critical in overcoming the challenges presented for optimizing Li-S cathode performance towards practical implementation. The high electrical resistivity of elemental sulfur requires the incorporation of conductive additives in order to formulate it into a functional cathode. A polymer binder must be utilized to integrate the elemental sulfur as the active material with the conductive additives into an electrically conductive composite affixed to a current collector. The electrochemical action of the Li-S battery results in the electroactive sulfur species converting between high and low order lithium polysulfides as the battery is discharged and charged. These lithium polysulfides become soluble at various stages throughout this cycling process that lead to a host of complications including the loss of electroactive material and slow rate capabilities. The use of polymer coatings applied to both the electroactive material and the cathode as a whole have been successful in mitigating the dissolution of lithium polysulfides by confining the redox reactions to the cathode. Elemental sulfur is largely intractable in conventional solvents and suffers from poor chemical compatibility limiting synthetic modification. By incorporating S-S bonds into copolymeric materials the electrochemical reactivity of elemental sulfur can be maintained and allow these polymers to function as the electroactive cathode materials while enabling improved processability and properties via the comonomeric inclusions. The use of inverse vulcanization, which is the direct copolymerization of elemental sulfur, is highlighted as a facile method to prepare polymeric materials with a high content of S-S bonds for use as active cathode materials. The second chapter focuses on the synthesis and polymerization of a novel bifunctional monomer containing both a styrenic group to access free radical polymerization and a propylenedioxythiophene (ProDOT) to install conductive polymer pathways upon an orthogonal oxidative polymerization. The styrenic ProDOT monomer (ProDOT-Sty) was successfully applied to a two-step sequential polymerization where the styrenic group was first leveraged in a controlled radical polymerization (CRP) to afford well defined linear homo- and block polymer precursors with pendant electropolymerizable ProDOT moieties. Subsequent treatment of the these linear polymer precursors with an oxidant in solution enabled the oxidative polymerization of the pendant ProDOT groups to install conductive polythiophene inclusions. Although the synthesis and CRP of ProDOT-Sty was novel, the key advance in this work was successful demonstration that sequential radical and oxidative polymerizations could be carried out to install conductive polymer pathways through an otherwise nonconductive polymer matrix. The third chapter expands upon the use of ProDOT-Sty to install conductive polymer pathways through a sulfur copolymer matrix. The highly electrically insulating nature of elemental sulfur precludes its direct use as a cathode in Li-S batteries and thus the use of ProDOT-Sty in the preparation of a high sulfur content copolymer with conductive inclusions was targeted to improve electrical properties. Inverse vulcanization of elemental sulfur with ProDOT-Sty and a minimal amount of 1,3-diisopropenylbenzene (DIB) was first completed to afford a sulfur rich copolymer with electropolymerizable side chains. Subsequently, the improved processability of the sulfur copolymer was exploited to prepare thin polymer films on electrode surfaces. The poly(ProDOT-Sty-𝑐𝑜-DIB-𝑐𝑜-sulfur) (ProDIBS) films were then subjected to oxidizing conditions via an electrochemical cell to invoke electropolymerization of the ProDOT inclusions and install conductive poly(ProDOT) pathways. Evaluation of the electrical properties with electrochemical impedance spectroscopy (EIS) revealed that the charge transfer resistance was reduced from 148 kΩ to 0.4 kΩ upon installation of the conductive poly(ProDOT) corresponding to an improvement in charge conductance of more than 95%. This also represented a key advance in expanding the scope of the inverse vulcanization methodology as the first example of utilizing a comonomer with a functional side chain. The fourth chapter focuses on expanding the scope of the inverse vulcanization polymerization methodology to include aryl alkyne based comonomers and the application of new these new sulfur copolymers as active cathode materials in Li-S batteries. The early work on developing inverse vulcanization relied heavily on the use of DIB as one of the few comonomers amenable to bulk copolymerization with elemental sulfur. One of the principal limitations in comonomer selection for inverse vulcanization is the solubility of the comonomer in molten sulfur. Generally it has been observed that aromatic compounds with minimal polarity are miscible and thus common classes of comonomers such as acrylates and methacrylates are immiscible and preclude their compatibility with inverse vulcanization. It was found that aryl alkynes are a unique class of compounds that are both miscible with molten sulfur and provide reactivity with sulfur centered radicals through the unsaturated carbon-carbon triple bonds. Additionally, it was found that internal alkynes were best suited for inverse vulcanization to preclude abstraction of the somewhat acidic hydrogen from terminal alkynes. 1,4-Diphenylbutadiyne (DiPhDY) was selected as a prototypical comonomer of this class of compounds for preparing high sulfur content copolymers via inverse vulcanization. Poly(sulfur-𝑐𝑜-DiPhDY) was prepared with various compositions of S:DiPhDY and these copolymers were formulated into cathodes for electrochemical testing in Li-S batteries. The poly(S-𝑐𝑜-DiPhDY) based cathodes exhibited the best performance reported at the time for a polymeric cathode material with the figure of merit of the first inverse vulcanizate to enable a cycle lifetime of up to 1000 cycles. The fifth chapter details the preparation of composite materials composed of a sulfur or copolymeric sulfur matrix with molybdenum disulfide (MoS₂) inclusions and the use of these materials for Li-S cathodes with rapid charge/discharge rate capabilities. The higher order lithium polysulfide redox products (e.g., Li₂S₈ Li₂S₆) generated during Li-S cycling are soluble in the electrolyte solution of the battery. The rate capability of the Li-S battery is thus fundamentally limited by mass transfer as these electroactive species must diffuse back to the cathode surface in order to undergo further reduction (discharge) or oxidation (charge). In order to limit the effective diffusion length of the soluble lithium polysulfides and therefore mitigate the diffusion limited rate, composite materials with fillers capable of binding the lithium sulfides were prepared. MoS₂ was selected as the filler as simulations had indicated lithium polysulfide had a strong binding interaction with the surface of MoS₂. Furthermore, it was demonstrated for the first time that metal chalcogenides such as MoS₂ readily disperse in molten sulfur which enabled the facile preparation of the composite materials in situ. The composites were prepared by first dispersing MoS₂ in liquid sulfur or a solution of liquid sulfur and DIB below the floor temperature of S₈ (i.e.<160 °C). The dispersions were then heated above the floor temperature of S₈ to induce ring opening polymerization of the sulfur phase and afford the composites. The composites were found to be potent active cathode materials in Li-S batteries enabling extended cycle lifetimes of up to 1000 cycles with excellent capacity retention. Furthermore, the composite materials were successful in enhancing the rate capability of the Li-S cathodes where reversible capacity of >500 mAh/g was achieved at the rapid rate of 5C (i.e. a 12 min. charge or discharge time).
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Zhang, Lu. "Study of Novel Graphene Structures for Energy Storage Applications". University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479823012280305.
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Campbell, Christopher. "The Effect of Pressure on Cathode Performance in the Lithium Sulfur Battery". Thesis, The University of Arizona, 2013. http://hdl.handle.net/10150/312669.
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This study was undertaken to understand the effect of applied pressure on the performance of the lithium sulfur cathode. Compressible carbon based cathodes and novel nickel based cathodes were fabricated. For each cathode, pore volume and void volume were quantified and void fraction was calculated, compression under 0 to 2MPa was measured, and lithium-sulfur cells were assembled and cycled at pressures between 0 and 1MPa. The cathodes studied had void fractions in the range of 0.45 to 0.90. Specific discharge capacities between 200 and 1100 mAh/g under 1MPa were observed in carbon-based cathodes. Nickel-based cathodes showed increased specific discharge capacity of up to 1300 mAh/g, with no degradation of performance under pressure. The high correlation of specific discharge capacity and void fraction, in conjunction with previous work, strongly suggest that the performance of lithium-sulfur cathodes is highly dependent on properties that influence ionic mass transport in the cathode.
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Dall'Agnese, Yohan. "Study of early transition metal carbides for energy storage applications". Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30025/document.
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La demande urgente d'innovations dans le domaine du stockage de l'énergie est liée au développement récent de la production d'énergie renouvelable ainsi qu'à la diversification des produits électroniques portables qui consomment de plus en plus d'énergie. Il existe plusieurs technologies pour le stockage et la conversion électrochimique de l'énergie, les plus notables étant les batteries aux ions lithium, les piles à combustible et les supercondensateurs. Ces systèmes sont utilisés de façon complémentaire des uns aux autres dans des applications différentes. Par exemple, les batteries sont plus facilement transportables que les piles à combustible et ont de bonne densité d'énergie alors que les supercondensateurs ont des densités de puissance plus élevés et une meilleure durée de vie. L'objectif principal de ces travaux est d'étudier les performances électrochimiques d'une nouvelle famille de matériaux bidimensionnel appelée MXène, en vue de proposer de nouvelles solutions pour le stockage de l'énergie. Pour y arriver, plusieurs directions ont été explorées. Dans un premier temps, la thèse se concentre sur les supercondensateurs dans des électrolytes aqueux et aux effets des groupes de surface. La seconde partie se concentre sur les systèmes de batterie et de capacités à ions sodium. Une cellule complète comportant une anode en carbone et une cathode de MXène a été développées. La dernière partie de la thèse présente l'étude des MXènes pour les supercondensateur en milieu organique. Une attention particulière est apportée à l'étude du mécanisme d'intercalation des ions entre les feuillets de MXène. Différentes techniques de caractérisations ont été utilisées, en particulier la voltampérométrie cyclique, le cyclage galvanostatique, la spectroscopie d'impédance, la microscopie électronique et la diffraction des rayons XAn increase in energy and power densities is needed to match the growing energy storage demands linked with the development of renewable energy production and portable electronics. Several energy storage technologies exist including lithium ion batteries, sodium ion batteries, fuel cells and electrochemical capacitors. These systems are complementary to each other. For example, electrochemical capacitors (ECs) can deliver high power densities whereas batteries are used for high energy densities applications. The first objective of this work is to investigate the electrochemical performances of a new family of 2-D material called MXene and propose new solutions to tackle the energy storage concern. To achieve this goal, several directions have been explored. The first part of the research focuses on MXene behavior as electrode material for electrochemical capacitors in aqueous electrolytes. The next part starts with sodium-ion batteries, and a new hybrid system of sodium ion capacitor is proposed. The last part is the study of MXene electrodes for supercapacitors is organic electrolytes. The energy storage mechanisms are thoroughly investigated. Different characterization techniques were used in this work, such as cyclic voltammetry, galvanostatic charge-discharge, electrochemical impedance spectroscopy, scanning electron microscopy and X-ray diffraction
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Ragupathy, P. "Studies On Nanostructured Transition Metal Oxides For Lithium-ion Batteries And Supercapacitoris". Thesis, 2009. http://hdl.handle.net/2005/1024.
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Rechargeable Li-ion batteries and supercapacitors are the most promising electrochemical energy storage devices in terms of energy density and power density, respectively. Recently, nanostructured materials have gained enormous interest in the field of energy technology as they have special properties compared to the bulk. Commercially available Li-ion batteries, which are the most advanced among the rechargeable batteries, utilize microcrystalline transition metal oxides as cathode materials which act as lithium insertion hosts. To explore better electrochemical performance the use of nanomaterials instead of conventional materials would be an excellent alternative.
High Li-ion insertion at high discharge rates causes slow Li+ transport which in turn results in concentration polarization of lithium ions within the electrode material, causing a drop in cell voltage. This eventually, leads in termination of the discharge process before realizing the maximum capacity of the electrode material being used. This problem can be addressed by decreasing the average particle size which leads to an increase in surface area of the electrode material. Nanostructured materials, because of their high surface area and large surface to volume ratio, to some extent can overcome the problem of slow diffusion of ions.
Supercapacitors are electrical energy storage devices which can deliver large energy in a short time. A supercapacitor can be used as an auxiliary energy device along with a primary source such as a battery or a fuel cell to achieve power enhancement in short pulse applications. Active materials for supercapacitors are classified into three categories: (i) carbonaceous materials, (ii) conducting polymers and (iii) metal oxides. Among the materials studied over the years, metal oxides have been considered as attractive electrode materials for supercapacitors due to the following merits: variable oxidation state, good chemical and electrochemical stability, ease of preparation and handling. The performance of supercapacitors can be enhanced by moving from bulk to nanostructured materials.
The theme of the thesis is to explore novel routes to synthesize nanostructured materials for Li-ion batteries and supercapacitors, and to investigate their physical and electrochemical characteristics.
Chapter I is an introduction of various types of electrochemical energy systems such as battery, fuel cell and supercapacitor. A brief review is made on electrode materials for Li-ion batteries and supercapacitors, and nanostructured materials.
Chapter II deals with the study of nanostrip orthorhombic V2O5 synthesized by a two-step procedure, with the formation of a vanadyl ethylene glycolate precursor and post-calcination treatment. The precursor and the final product are characterized for phase and composition by powder X-ray diffraction (XRD), infrared (IR) spectroscopy, thermal analysis (TGA) and X-ray photoelectron spectroscopy (XPS). The morphological changes are investigated using field emission scanning electron microscopy (FE-SEM) and high resolution transmission electron microscopy (HRTEM). It is found that the individual strips have the following dimensions, length: 1.3 μm, width: 332 nm and thickness: 45 nm. The electrochemical lithium intercalation and de-intercalation of nanostrip V2O5 is investigated by cyclic voltammetry (CV), galvanostatic charge-discharge cycling, galvanostatic intermittent titration technique (GITT) and electrochemical impedance spectroscopy.
Chapter III describes the synthesis of nanoparticels of LiMn2O4 by microwave assisted hydrothermal method. The phase and purity of spinel LiMn2O4 are confirmed by powder XRD analysis. The morphological studies are carried out using FE-SEM and HRTEM. The electrochemical performance of spinel LiMn2O4 is studied by using CV and galvanostatic charge-discharge cycling. The initial discharge capacity is found to be about 89 mAh g-1 at a current density of 21 mA g-1 with reasonably good cyclability.
Chapter IV deals with synthesis of MoO2 nanoparticles through ethylene glycol medium and its electrochemical characterization. XRD data confirms the formation MoO2 on monoclinic phase, space group P21/c. Polygon shape of MoO2 is observed in HRTEM. MoO2 facilitates reversible insertion-extraction of Li+ ions between 0.25 to 3.0 V vs. Li/Li+. CV and galvanostatic charge-discharge cycling are conducted on this anode material to complement the electrochemical data.
Chapter V reports the synthesis of nanostructured MnO2 at ambient conditions by reduction of potassium permanganate with aniline. Physical characterization is carried out to identify the phase and morphology. The as prepared MnO2 is amorphous and it contains particles of 5 to 10 nm in diameter. On annealing at a temperature > 400 °C, the amorphous MnO2 attains crystalline α-phase with a concomitant change in morphology. A gradual conversion of nanoparticles to nanorods (length 500-750 nm and diameter 50-100 nm) is evident from SEM and TEM studies. High resolution TEM images suggest that nanoparticles and nanorods grow in different crystallographic planes. The electrochemical lithium intercalation and de-intercalation of nanorods was performed by (CV) and galvanostatic charge-discharge cycling. The initial discharge capacity of nanorod α-MnO2 is found to be about 197 mAh g-1 at a current density of 13.0 mA g-1. Capacitance behavior of amorphous MnO2 is studied by CV and galvanostatic charge-discharge cycling in a potential range from -0.2 to 1.0 V vs. SCE in 0.1 M sodium sulphate solution. The effect of annealing on specific capacitance is also investigated. Specific capacitance of about 250 F g-1 is obtained for as prepared MnO2 at a current density of 0.5 mA cm-2 (0.8 A g-1).
Chapter VI pertains to electrochemical supercapacitor studies on nanostructured MnO2 synthesized by polyol method. Although X-ray diffraction (XRD) pattern of the as synthesized nano-MnO2 shows poor crystallinity, it is found that it is locally arranged in δ-MnO2 type layered structure composed of edge-shared network of MnO6 octahedra by Mn K-edge X-ray Absorption Near Edge Structure (XANES) measurement. Annealed MnO2 shows high crystalline tunneled based α-MnO2 as confirmed by powder XRD pattern and XANES. As synthesized MnO2 exhibits good cyclability as an electrode material for supercapacitor.
In Chapter VII, capacitance behavior of nanostrip V2O5, TiO2 coated V2O5 and nanocomposites of PEDOT/V2O5 are presented. Structural and morphological studies are carried out by powder XRD, IR, TGA, SEM and TEM. Cyclic voltammogram of pristine V2O5 shows the regular rectangular shape indicating the ideal capacitance behavior in aqueous 0.1 M K2SO4. The SC value of pristine V2O5 is found to be about 100 F g-1. Nanostrip V2O5 is modified with TiO2 using titanium isobutoxide to enhance the capacitance retention upon cycling. Only 48 % of the initial capacitance remains in the case of pristine V2O5 after 100 cycles, while TiO2 coated V2O5 exhibits better cyclability with capacitance of 70 % of the initial capacitance. The capacitance retention is attributed to the presence of TiO2 on the surface of V2O5 which prevents the vanadium dissolution into the electrolyte. Microwave assisted hydrothermally synthesized PEDOT/V2O5 nanocomposites are utilized as capacitor materials. The initial SC of PEDOT/V2O5 (237 F g-1) is higher than that of either pristine V2O5 or PEDOT. The enhanced electrochemical performance is attributed to synergic effect and an enhanced bi-dimensionality.
Details of the above studies are described in the thesis with a conclusion at the end of each Chapter.
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Usman, Zubair. "High-energy sustainable Lithium Sulfur batteries for electrical vehicles and renewable energy applications - Development of innovative electrodes". Doctoral thesis, 2019. http://hdl.handle.net/11583/2730561.
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This dissertation comprehensively speaks about the state of research in Li/S electrochemical system. Li-ion batteries are all over in gadgets, laptops and almost in every portable consumer electronics. But, future energy storage demand for electrical mobility and smart grids asking for much higher energy density, sustainable and cheaper solutions. Lithium-sulfur (Li/S) technology is one of the promising solutions to such demands as it can offer five times high energy density than that of state of art Li-ion technology. Li/S system can be potentially regarded as a sustainable and cheaper technology owing to abundancy and benignity of sulfur. However, the insulating nature of sulfur and Li2S, free solubility of lithium polysulfide (LiPS) in the electrolyte, shuttling of LiPS across separator and use of metallic lithium as anode challenge the scientific community to offer some practical solutions for its commercialization . The effort can be done in various dimensions to realize stable and long-life Li/S batteries. Various startegies have been proposed to realize efficient and stable sulfur and silicon electrodes. In the end, a Li metal free Si/S full cell has been realized.
Książki na temat "Energy Storage Materials Metal-Sulfur Batteries"
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Innovative Antriebe 2016. VDI Verlag, 2016. http://dx.doi.org/10.51202/9783181022894.
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Rechargeable Energy Storage Technologies for Automotive Applications Abstract This paper provides an extended summary of the available relevant rechargeable energy storage electrode materials that can be used for hybrid, plugin and battery electric vehicles. The considered technologies are the existing lithium-ion batteries and the next generation technologies such as lithium sulfur, solid state, metal-air, high voltage materials, metalair and sodium based. This analysis gives a clear overview of the battery potential and characteristics in terms of energy, power, lifetime, cost and finally the technical hurdles. Inhalt Seite Vorwort 1 Alternative Energiespeicher – und Wandler S. Hävemeier, Neue Zelltechnologien und die Chance einer deutschen 3 M. Hackmann, Zellproduktion – Betrachtung von Technologie, Wirtschaft- R. Stanek lichkeit und dem Standort Deutschland N. Omar, Rechargeable Energy Storage Technologies for 7 R. Gopalakrishnan Automotive Applications – Present and Future ...
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Zhang, Jiujun, i Vladimir Neburchilov. Metal-Air and Metal-Sulfur Batteries: Fundamentals and Applications. Taylor & Francis Group, 2019.
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Zhang, Jiujun, i Vladimir Neburchilov. Metal-Air and Metal-Sulfur Batteries: Fundamentals and Applications. Taylor & Francis Group, 2016.
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Zhang, Jiujun, i Vladimir Neburchilov. Metal-Air and Metal-Sulfur Batteries: Fundamentals and Applications. Taylor & Francis Group, 2016.
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Zhang, Jiujun, i Vladimir Neburchilov. Metal-Air and Metal-Sulfur Batteries: Fundamentals and Applications. Taylor & Francis Group, 2016.
Znajdź pełny tekst źródłaCzęści książek na temat "Energy Storage Materials Metal-Sulfur Batteries"
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Zhu, Jiadeng, Yucheng Zhou, Qiang Gao i Mengjin Jiang. "Polymeric Materials for Metal-Sulfur Batteries". W Recent Advancements in Polymeric Materials for Electrochemical Energy Storage, 329–45. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4193-3_19.
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Wang, Zhenhua. "Cathode Materials for Lithium-Sulfur Batteries". W Advanced Electrochemical Materials in Energy Conversion and Storage, 129–44. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003133971-5.
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Wang, Zhenhua. "Anode Materials for Lithium-Sulfur Batteries". W Advanced Electrochemical Materials in Energy Conversion and Storage, 145–63. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003133971-6.
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Wang, Zhenhua. "Interlayer of Lithium-Sulfur Batteries". W Advanced Electrochemical Materials in Energy Conversion and Storage, 165–71. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003133971-7.
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Liu, Bin, i Huilin Pan. "Rechargeable Lithium Metal Batteries". W Nanostructured Materials for Next-Generation Energy Storage and Conversion, 147–203. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-58675-4_4.
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Wei, Yi, Huiyang Ma, Wei Guo i Yongzhu Fu. "Principles and Status of Lithium-Sulfur Batteries". W Advanced Electrochemical Materials in Energy Conversion and Storage, 173–206. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003133971-8.
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Sharma, Mansi, Pragati Chauhan, Dinesh Kumar i Rekha Sharma. "Polymeric Materials for Metal-Air Batteries". W Recent Advancements in Polymeric Materials for Electrochemical Energy Storage, 383–99. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4193-3_22.
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Dehghan-Manshadi, Hamid, Mohammad Mazloum-Ardakani i Soraya Ghayempour. "Polymer-Metal Oxides Nanocomposites for Metal-Ion Batteries". W Recent Advancements in Polymeric Materials for Electrochemical Energy Storage, 299–312. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4193-3_17.
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Wang, Tianyi, Yushu Liu, Dawei Su i Guoxiu Wang. "1D and 2D Flexible Carbon Matrix Materials for Lithium-Sulfur Batteries". W Flexible Energy Conversion and Storage Devices, 127–53. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527342631.ch5.
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Gautam, Sakshi, Anjali Banger, Nirmala Kumari Jangid i Manish Srivastava. "Polymer-Chalcogen Composites for Metal-Ion Batteries". W Recent Advancements in Polymeric Materials for Electrochemical Energy Storage, 313–28. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4193-3_18.
Pełny tekst źródłaStreszczenia konferencji na temat "Energy Storage Materials Metal-Sulfur Batteries"
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Pharr, Matt. "Mechanical behavior of metal anodes for next-generation rechargeable batteries". W Energy Harvesting and Storage: Materials, Devices, and Applications XI, redaktorzy Achyut K. Dutta, Palani Balaya i Sheng Xu. SPIE, 2021. http://dx.doi.org/10.1117/12.2588771.
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Parra-Puerto, Andres, Jack Dawson, Mengjun Gong, Javier Rubio-Garcia i Anthony Kucernak. "Carbon Materials for Energy Storage from Redox Flow Batteries to Lithium Sulfur Batteries, Catalyst for Alkaline Electrolysers and Hybrid Redox Flow Batteries". W Materials for Sustainable Development Conference (MAT-SUS). València: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2022. http://dx.doi.org/10.29363/nanoge.nfm.2022.171.
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Kumar, Bachu S., Anagha Pradeep i Amartya Mukhopadhyay. "Tuning the transition metal oxides towards achieving water-stability and high voltage electrochemical stability, as cathode materials for alkali metal-ion batteries". W Energy Harvesting and Storage: Materials, Devices, and Applications XI, redaktorzy Achyut K. Dutta, Palani Balaya i Sheng Xu. SPIE, 2021. http://dx.doi.org/10.1117/12.2589639.
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Tariq, Hanan Abdurehman, Abdul Shakoor, Jeffin James, Umair Nisar i Ramzan Kahraman. "Combustion-Free Synthesis of Lithium Manganese Oxide Composites with CNTs/GNPs by Chemical Coprecipitation for Energy Storage Devices". W Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0004.
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Nano Spinel Lithium Manganese Oxide (LiMn2O4) was distributed properly on carbon nanotubes ( CNTs) and graphene nanoplatelets (GNPs) using chemical coprecipitation method. The original particle size was less than 40 nm, and the average size of the crystallite was 20 nm without the application of any capping agents. Characteristic spectra of spinel structure and a peak of CNTs & GNPs obtained using X-ray powder diffraction (XRD). CNTs and GNPs in energy storage systems improve the rate capabilities and cyclic efficiency of cathode materials. The suggested technique, chemical coprecipitation, provides new avenues for the production of nano-sized lithium transition metal oxide composites with CNTs and GNPs in an inexpensive and simple way. Higher density energy storage systems raise significant safety issues, and for safety, they are restricted to 30 percent to 50 percent of their ability. The proposed composite would enable the energy storage systems to be used even at high temperatures and higher discharge rates above 60 percent of their ability. Besides, the parasitic reaction between the electrode surface and the electrolyte will decrease, which will increase the battery's projected life span. As an all-solid-state device, the new composite batteries would make the system non-flammable, immune from side reactions, and resistant to capacity erosion.
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Wang, C. Y., W. B. Gu, R. Cullion i B. Thomas. "Heat and Mass Transfer in Advanced Batteries". W ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-1000.
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Abstract This paper presents an overview of heat and mass transfer issues in advanced rechargeable batteries such as nickel-metal hydride (Ni-MH) and lithium-ion (Li-ion) batteries. These batteries are important power sources for ultra-clean, fuel-efficient vehicles and modern portable electronics. Recent demands for environmentally responsible vehicles and strong portable power have prompted fundamental studies of heat and mass transport processes in battery systems in conjunction with electrochemistry and materials science. In this paper, discussions are presented on what are the critical heat and mass transfer issues present in advanced batteries and how these issues affect the battery performance, safety, life cycle, and cost. A theoretical framework describing the transport phenomena with electrochemical reactions is provided. Selected results are presented to illustrate the importance of coupled electrochemical and thermal modeling for advanced batteries. The recent progress is also reviewed in developing and validating battery models at Penn State GATE Center for Advanced Energy Storage.
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Kareem, M. O., H. K. Amusa i E. M. Nashef. "Evaluation of the Ionic Liquid, 1-Butyl-1-Methylpyrrolidinium Bis(Trifluoromethylsulfonyl)imide, as a Sustainable Material for Modern Energy Devices". W SPE Nigeria Annual International Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/217220-ms.
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Abstract Sustainable materials are those which satisfy the three sustainability criteria of being environmentally safe, profitable, and acceptable to society. Within a circular economy such material's societal acceptability is linked to the wider and long-term implications of its production and its durable usability, along with the assurance that it does not leave negative environmental footprints. 1-butyl-1-methyl pyrrolidinium bis(trifluoromethylsulfonyl)imide (abbreviated as BMPI) is an ionic liquid (IL), with minimal negative environmental impacts that is applied in different components of energy devices like batteries. Like other ionic liquids (ILs) it is non-volatile and non-flammable. It is additionally non-toxic and not too viscous within practical operating conditions, making it safe and suitable for use in batteries. Such batteries constitute crucial parts of renewable energy systems where they are useful for energy storage, thus enabling a practical alternative for diversifying from fossil energy sources. ILs like BMPI, comprising only ions while being in a liquid state, show superior conductivity and dielectric properties relevant for metal-ion batteries, redox-flow batteries, and even solid-state batteries. The performance of BMPI, as well as the economic viability of its utilization, is assessed by analyzing its performance in different battery systems, including "membraneless" systems, wherein it constitutes an active part of components such as capacitors, electrolytes, and ion-exchange membranes. A focused analysis of its usability and potential acceptability in the energy industry of Nigeria among others in Europe, the Middle East, and Africa (EMEA) is further presented, providing a holistic evaluation of the potential sustainability of BMPI and similar ionic liquids as components of energy devices in a circular economy.
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Albina, Dionel O., Karsten Millrath i N. J. Themelis. "Effects of Feed Composition on Boiler Corrosion in Waste-to-Energy Plants". W 12th Annual North American Waste-to-Energy Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/nawtec12-2215.
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Municipal solid wastes (MSW) typically contain plastic materials, leather, textiles, batteries, food waste and alkalis. These materials are sources of chlorine, sulfur, potassium, zinc, lead and other heavy metals that can form corrosive media during combustion of the MSW in waste-to-energy (WTE) facilities. Chlorides and sulfates, along with fly ash particles, condense or deposit on the waterwall surfaces in the combustion chamber and on other heat exchanger surfaces in the convection path of the process gas, such as screens and superheater tubes. The resulting high corrosion spots necessitate shutdowns and tube replacements, which represent major operating costs. The aim of ongoing research at Columbia University is to gain a better understanding of the effects of fuel composition, products of combustion, and chemical reactions that lead to the corrosion of metal surfaces in WTE boilers. The potential chemical reactions and their chance of occurrence were determined by means of thermochemical calculations of the respective equilibrium constants as a function of temperature and gas phase composition.
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Patel, Prehit, i George J. Nelson. "The Influence of Structure on the Electrochemical and Thermal Response of Li-Ion Battery Electrodes". W ASME 2019 13th International Conference on Energy Sustainability collocated with the ASME 2019 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/es2019-3926.
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Abstract The continued advancement of lithium ion batteries for transportation applications requires addressing two key challenges: increasing energy density and providing fast charging capabilities. The first of these challenges can be met in part through the use of thicker electrodes, which reduce the electrochemically inactive mass of the cell. However, implementation of thick electrodes inherently presents a trade-off with respect to fast charging capabilities. As thickness is increased, transport limitations exert greater influence on battery performance and reduce the ability of the battery to meet aggressive charge conditions. This trade-off can manifest over multiple length scales. At the particle-scale, interactions between solid diffusion and reaction kinetics influence the effective storage of lithium within the active material. At the electrode scale, diffusion limitations can lead to local variations in salt concentrations and electric potential. These short-range and long-range effects can combine to influence local current and heat generation. In the present work, a pseudo-2D lithium ion battery model is applied to understand how active material particle size, porosity, and electrode thickness impact local field variables, current, heat generation, and cell capacity within a single cell stack. COMSOL Multiphysics 5.2 is used to implement the pseudo-2D model of a lithium ion battery consisting of a graphite negative electrode, polymer separator, and lithium transition metal oxide positive electrode. Lithium hexafluorophosphate (LiPF6) in 1:1 ethylene carbonate (EC) and diethylene carbonate (DEC) was used as the electrolyte. The model was built assuming that the active particles are representative spherical particles. The governing equations and boundary conditions were set following the common Newman model. Cell response under varied combinations of charge and discharge cycling is assessed for rates of 1C and 5C. Aggressive charge and discharge conditions lead to locally elevated C-rates and attendant increases in local heat generation. These variations can be impacted in part by tailoring electrode structures. To this end, results for parametric studies of active material particle size, porosity, and electrode thickness are presented and discussed.