Дисертації з теми "Solid State Electrolyte (SSE)"
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Hernandez, Alvarez Erick Ivan. "Electrolyte selection for cobalt-free solid-state batteries." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119602.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (page 30).
Lithium-ion batteries are widespread in use due to their thermal stability and high energy density. The most common design uses an organic electrolyte and lithium-cobalt electrode. While safe under typical operating conditions, the use of an organic electrolyte subjects the battery user to certain risks; in particular, Li-ion liquid batteries are explosive when exposed to air and subject to thermal runoff, making them highly sensitive to any physical damage. The use of cobalt also poses a moral concern, as the mining and sourcing of cobalt is geographically restricted and most commonly sourced from countries that have a history of foreign exploitation and child labor. An all solid state battery is suggested as a possible alternative battery that reduces operation risks and maintains similar performance characteristics. Lithium-lanthanum-zirconium oxide is presented as a suitable electrolyte replacement. Coupled with cobalt-free electrodes, this battery design would provide a safer, more responsible battery.
by Erick Ivan Hernandez Alvarez.
S.B.
Yada, Chihiro. "Studies on electrode/solid electrolyte interface of all-solid-state rechargeable lithium batteries." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/144024.
Повний текст джерела0048
新制・課程博士
博士(工学)
甲第12338号
工博第2667号
新制||工||1377(附属図書館)
24174
UT51-2006-J330
京都大学大学院工学研究科物質エネルギー化学専攻
(主査)教授 小久見 善八, 教授 江口 浩一, 教授 田中 功
学位規則第4条第1項該当
Howell, Ian. "The structure of some simple aqueous electrolyte solutions." Thesis, University of Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386083.
Повний текст джерелаShao, Yunfan. "Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545.
Повний текст джерелаLi, Si. "HIGHLY CONDUCTIVE SOLID POLYMER ELECTROLYTE CONTAINING LiBOB AT ROOM TEMPERATURE FOR ALL SOLID STATE BATTERY." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1490481514905008.
Повний текст джерелаChen, Kezheng. "Origin of Polarization Behavior in All-Solid-State Lithium-Ion Battery Using Sulfide Solid Electrolyte." Kyoto University, 2018. http://hdl.handle.net/2433/235998.
Повний текст джерелаYin, Yijing. "An Experimental Study on PEO Polymer Electrolyte Based All-Solid-State Supercapacitor." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/440.
Повний текст джерелаZhao, Fangtong. "A SOLID-STATE COMPOSITE ELECTROLYTE FOR LITHIUM-ION BATTERIES WITH 3D-PRINTING FABRICATION." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619814091802231.
Повний текст джерелаSun, Bing. "Functional Polymer Electrolytes for Multidimensional All-Solid-State Lithium Batteries." Doctoral thesis, Uppsala universitet, Strukturkemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-248084.
Повний текст джерелаYang, Run. "A Superionic Conductive Solid Polymer Electrolyte Based Solid Sodium Metal Batteries with Stable Cycling Performance at Room Temperature." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619741453185762.
Повний текст джерелаGrenier, Antonin. "Development of solid-state Fluoride-ion Batteries : cell design, electrolyte characterization and electrochemical mechanisms." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066128/document.
Повний текст джерелаSolid-state fluoride-ion batteries rely on the reversible exchange of the F- ion between a metal and a metal fluoride through a solid electrolyte. These electrochemical devices can theoretically reach energy densities superior to conventional Li-ion commercial batteries. Consequently, fluoride-ion batteries can be seen as a new promising chemistry generating a growing interest. In this context, a part of our work has been dedicated to the development of a cell allowing the evaluation of their electrochemical performance. Moreover, particular attention was given to the electrochemical properties of the solid electrolyte, BaF2-doped LaF3, La1-xBaxF3-x. Finally, the structural changes taking place at the electrodes upon charge/discharge were studied in order to gain insight into the electrochemical mechanisms involved in these devices
Dodd, Andrew J. "Solid state NMR investigation of a novel Li ion ceramic electrolyte : Li doped BPOâ‚„." Thesis, University of Kent, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269079.
Повний текст джерелаGoel, Ekta. "A lithium-ion test cell for characterization of electrode materials and solid electrolyte interphase." Master's thesis, Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-03062008-081546.
Повний текст джерелаSu, Zhongyi. "Performance enhancement of all-solid-state batteries by optimizing the electrolyte through advanced microscopy and tomography techniques." Thesis, The University of Sydney, 2020. https://hdl.handle.net/2123/22112.
Повний текст джерелаLee, Myongjai. "Ionic conductivity measurement in magnesium aluminate spinel and solid state galvanic cell with magnesium aluminate electrolyte." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3273742.
Повний текст джерелаLINGUA, GABRIELE. "Newly designed single-ion conducting polymer electrolytes enabling advanced Li-metal solid-state batteries." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2969103.
Повний текст джерелаCui, Yuantao [Verfasser], and H. J. [Akademischer Betreuer] Seifert. "Phosphate based ceramic as solid-state electrolyte for lithium ion batteries / Yuantao Cui ; Betreuer: H. J. Seifert." Karlsruhe : KIT-Bibliothek, 2018. http://d-nb.info/1170230482/34.
Повний текст джерелаPaulus, Marc Christoffer Verfasser], Josef [Akademischer Betreuer] Granwehr, and Bernhard [Akademischer Betreuer] [Blümich. "NMR-investigations on the lithium solid state electrolyte Li10GeP2S12 (LGPS) / Marc Christoffer Paulus ; Josef Granwehr, Bernhard Blümich." Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/1216040818/34.
Повний текст джерелаWiemhöfer, Hans-Dieter. "Lithium Ion Transport in Polymer Electrolyte Films for Solid State Batteries – An Overview on Concepts, Techniques and Results." Diffusion fundamentals 21 (2014) 7, S.1, 2014. https://ul.qucosa.de/id/qucosa%3A32399.
Повний текст джерелаFu, Guopeng. "INVESTIGATION ON THE STRUCTURE-PROPERTY RELATIONSHIPS IN HIGHLY ION-CONDUCTIVE POLYMER ELECTROLYTE MEMBRANES FOR ALL-SOLID-STATE LITHIUM ION BATTERIES." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1508508844968127.
Повний текст джерелаRay, Brian M. "A STUDY OF THE LITHIUM IONIC CONDUCTOR Li5La3Ta2O12: FROM SYNTHESIS THROUGH MATERIALS AND TRANSPORT CHARACTERIZATION." UKnowledge, 2014. http://uknowledge.uky.edu/physastron_etds/18.
Повний текст джерелаHe, Ruixuan. "Studies on Ionic Conductivity and Electrochemical Stability of Plasticized Photopolymerized Polymer Electrolyte Membranes for Solid State Lithium Ion Batteries." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1478969519588062.
Повний текст джерелаRendon, Piedrahita Camilo. "Study of highly conductive, flexible polymer electrolyte membranes and their novel flexoelectric effect." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1541440496157425.
Повний текст джерелаLee, Jeremy J. "Fabrication and Characterizations of LAGP/PEO Composite Electrolytes for All Solid-State Lithium-Ion Batteries." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1527273235003087.
Повний текст джерелаAuvergniot, Jérémie. "Étude des mécanismes aux interfaces électrode/électrolyte d’accumulateurs « bulk tout-solide »." Thesis, Pau, 2017. http://www.theses.fr/2017PAUU3044/document.
Повний текст джерелаThe last two decades have shown a tremendous spreading of portable electronics, changing our society. This change was made possible by the invention of Li-ion batteries, which provide a high energy density for a low weight and volume. More recently the development of new applications, such as electric vehicles or renewable energies, has led to new needs in terms of electrochemical storage. For some applications, user safety will be as important as cost and energy density. On the other hand, research around Na-ion batteries focuses an increased interest, because they do not depend on lithium cost. Replacing organic liquid electrolytes with inorganic solid electrolytes is an interesting solution to improve the safety of batteries, because inorganic ionic conductors are nonflammable, stable at high temperature, and supposed to be chemically and electrochemically more stable. Using those materials in all-solid-state batteries has however several limiting factors, such as loss of contact between particle at the interfaces during cycling, and also chemical/electrochemical compatibility issues between materials. Another issue with this type of batteries is the interdiffusion of species at interfaces leading to an impedance increase during cycling. Several solutions exist to mitigate those issues, such coating the active material particles with a less reactive inorganic material. However there is a lack of knowledge on the species forming at those interfaces, knowledge which is needed to improve the performances of such systems. Studying those interfacial interactions and characterizing the species formed as those interfaces was the main topic of this Ph.D thesis.This work has been done in collaboration between two laboratories : IPREM (University of Pau - CNRS, France) and LRCS (University of Amiens - CNRS, France). Two solid electrolytes have been studied: the argyrodite Li6PS5Cl and the NaSICON Na3Zr2Si2PO12. Those materials have been synthetized, then integrated in bulk all-solid-state batteries and their interfaces were characterized by X-Ray Photoelectron Spectroscopy (XPS) and Auger Electron Spectroscopy (AES). Those two techniques provide us very complementary information, the first allowing identification and quantification of surface species, the second one giving access to the spatial repartition of elements at a nanometric level.The analysis of bulk all-solid-state batteries based on the electrolyte Na3Zr2Si2PO12 using the active material Na3V2(PO4)3 showed micromorphologic changes during cycling, as well as interdiffusion phenomena between particles. AES analysis also allowed us to describe self-discharge issues.The study of Li6PS5Cl-based batteries highlighted that this solid electrolyte is stable towards the negative electrode active material LTO. It however has interfacial reactivity towards positive electrode active materials such as LCO, NMC, LMO, LFP and LiV3O8. This reactivity leads to the formation of several species such as LiCl, P2Sx , Li2Sn , S0 and phosphates at the interface with Li6PS5Cl. In spite of the encountered interfacial reactivity issues, we managed to build all-solid-state batteries based on Li6PS5Cl showing a good capacity retention over 300 cycles when cycled between 2.8 and 3.4V
Castillo, Adriana. "Structure et mobilité ionique dans les matériaux d’électrolytes solides pour batteries tout-solide : cas du grenat Li7-3xAlxLa3Zr2O12 et des Nasicon Li1.15-2xMgxZr1.85Y0.15(PO4)3." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX107/document.
Повний текст джерелаOne of the issues for the development of all-solid-state batteries is to increase the ionic conductivity of solid electrolytes. The thesis work focuses on two types of materials as crystalline inorganic solid electrolytes: a Garnet Li7-3xAlxLa3Zr2O12 (LLAZO) and a Nasicon Li1.15-2xMgxZr1.85Y0.15(PO4)3 (LMZYPO). The objective of this study is to understand to what extent the conduction properties of the studied materials are impacted by structural modifications generated either by a particular treatment process, or by a modification of the chemical composition. Structural data acquired by X-ray diffraction (XRD) and Magic Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR) were then crossed with ions dynamics data deduced from NMR measurements at variable temperature and electrochemical impedance spectroscopy (EIS).The powders were synthesized after optimizing thermal treatments using solid-solid or sol-gel methods. Spark Plasma Sintering (SPS) technique was used for the densification of the pellets used for ionic conductivity measurements by EIS.In the case of garnets LLAZO, the originality of our work is to have shown that a SPS sintering treatment, beyond the expected pellets densification, also generates structural modifications having direct consequences on the lithium ions mobility in the material and therefore on the ionic conductivity. A clear increase of the lithium ions microscopic dynamics after SPS sintering was indeed observed by variable temperature 7Li NMR measurements and the monitoring of the relaxation times.The second part of the study provides an exploratory work on the substitution of Li+ by Mg2+ in LMZYPO. We studied the ionic conduction properties of these mixed Li/Mg compounds, in parallel with a fine examination of the crystalline phases formed. We have showed in particular that the presence of Mg2+ favors the formation of the less conductive β’ (P21/n) and β (Pbna) phases, which explains the decrease of the ionic conductivity with the substitution level of Li+ by Mg2+ observed in these Nasicon type materials.Our work therefore highlights the crucial importance of structural effects on the conduction properties of ceramic solid electrolyte materials
Yang, Xiangwen, Zhixing Lin, Jingxu Zheng, Yingjuan Huang, Bin Chen, Yiyong Mai, and Xinliang Feng. "Facile template-free synthesis of vertically aligned polypyrrole nanosheets on nickel foams for flexible all-solid-state asymmetric supercapacitors." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-224947.
Повний текст джерелаYang, Xiangwen, Zhixing Lin, Jingxu Zheng, Yingjuan Huang, Bin Chen, Yiyong Mai, and Xinliang Feng. "Facile template-free synthesis of vertically aligned polypyrrole nanosheets on nickel foams for flexible all-solid-state asymmetric supercapacitors." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A30332.
Повний текст джерелаBu, Junfu. "Advanced BaZrO3-BaCeO3 Based Proton Conductors Used for Intermediate Temperature Solid Oxide Fuel Cells (ITSOFCs)." Doctoral thesis, KTH, Tillämpad processmetallurgi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-165073.
Повний текст джерелаQC 20150423
Takahashi, Masakuni. "Elucidation of the Dominant Factor in Electrochemical Materials Using Pair Distribution Function Analysis." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263748.
Повний текст джерела新制・課程博士
博士(人間・環境学)
甲第23287号
人博第1002号
京都大学大学院人間・環境学研究科相関環境学専攻
(主査)教授 内本 喜晴, 教授 田部 勢津久, 准教授 戸﨑 充男
学位規則第4条第1項該当
Doctor of Human and Environmental Studies
Kyoto University
DFAM
Castro, Alexandre. "Développement de batteries tout solide sodium ion à base d’électrolyte en verre de chalcogénures." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S126/document.
Повний текст джерелаThe evolution of energy consumption in recent decades has led to major changes in the design of autonomous electrical systems dedicated to either electrical or electronic applications. The present demand to build generators capable of delivering sufficient energy, with a guarantee of maximum safety, requires to explore new storage routes. The current lithium battery routes tend to show their limits, both strategic and environmental. In this context, the construction of new electrochemical systems implementing sodium opens the way of the lithium-free accumulators production. The need for ever more efficient batteries requires innovative designs, giving up the liquid path in favor of stronger solid systems. In addition, the miniaturization of electronics leads to a review of the size of the batteries, to micro-type batteries, for which the interest of a solid stack is no longer to demonstrate. Today, sulfur chalcogenide glasses allow access to ionic conductivities that suggest the possibility of a realization of all solid batteries, both in the form of micro batteries or massive batteries. A research effort has been made to formulate these chalcogenide glasses in order to obtain a maximum of ionic conductivity and properties allowing their use as electrolytes. The composition of these glasses highlights the interest of the different elements for such properties. The study of the electrolyte shaping by thin-film deposition (obtained by Radio Frequency Magnetron Sputering, RFMS) proves the feasibility of these all-solid sodium micro-batteries. Subsequently, the realization of massive all solid batteries required the synthesis of two cathode materials (NaCrO2 and Na [Ni0.25Fe0.5Mn0.25]O2) and two anode materials (Na15Sn4 and Na) thus allowing the implementation of four electrochemical stacks, all characterized as accumulators. Finally, the improvement of the interfaces thanks to a gel-polymer made it possible to improve the properties of the assemblies with notably an increase of the speeds of charge / discharge and an enhanced mobilization of the cathode active materials
Grothe, Dorian C. "Entwicklung und Synthese von Materialien für Polyelektrolytmembranen mit ionischen Flüssigkeiten zum Einsatz in Lithium-Ionen-Batterien." Phd thesis, Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2013/6369/.
Повний текст джерелаWithin the field of energy storage and charge transfer, the lithium polymer batteries are one of the leading technologies, due to their low manufacture cost and their possible variety of packaging shapes. Despite their good thermal stability and very good weight to energy ratio, lithium ion batteries use as a electrolyte system a mixture of ethylene carbonate and diethyl carbonate as solvent which have a high risk of deflagration when they come in contact with water. Thus the developement of new materials for lithium-ion-batteries are necessary. For the electrolyte there are special requirements in terms of energy- and power density e.g. in order to minimize thermal loss. High conductivity electrolytes with conductivities in the range of milisiemens are as essential as safe materials, like non flammable non-volatile materials. To fulfill these requirements it is important to develop a polymeric lithium ion conductor, which is free of flammable organic solvents in order to ensure safety. Simultaneously it is also ,mandatory to achieve high performances in terms of ion-conductivity. Therefore a concept based on a combination of an oxygen rich polymeric matrix and ionic liquids was developed and verified. Following results were achieved . 1. Synthesis of new diacryalted oxygen rich matrix components with many carbonylfunctions for a good lithium ion transport. 2. Synthesis and characterization of new ionic liquids based on imidazol or ammonium compounds. 3. Investigation of the influences of the cation structure and counter ions for melting points and ion conductivity. 4. Creation of Blendsystems with the developed materials 5. Thermal investigations of these solid-state-electrolytes with DSC and TGA measurements, resulting in thermal stabilities up to 250°C.No crystallization were observed. 6. investigation of these solid-state-electrolytes via AC-impedance spectrometry, resulting in conductivities of 10-4S/cm at room temperature.
Tarhouchi, Ilyas. "Etude des phases Li10MP2S12 (M=Sn, Si) comme électrolyte pour batteries tout-solide massives." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0220/document.
Повний текст джерелаBy replacing the liquid electrolyte by a solid one, solid state batteries are oftenconsidered as a solution to safety issues in current Li-ion batteries. The recentdiscovery of Li10GeP2S12 with so-called LGPS structure, which exhibits an ionicconductivity equivalent to that of liquid electrolytes, has boosted related researchactivities.In this perspective, we studied the Li10MP2S12 (M=Sn, Si) materials with LGPSstructure, using various methods to characterize the structure (XRD, 31P NMR,Mössbauer spectroscopy …), the ionic mobility/conductivity (7Li NMR, Impedancespectroscopy), and the electrochemical properties (cycling voltammetry,galvanostatic cycling) of the material.Commercially available Li10SnP2S12 batches contain impurities and there remains anambiguity in the actual composition of the LGPS type phase. Modelling of the 31PNMR shifts reveals the effect of lithium in neighboring octahedral sites. Impedencemeasurements suggest reactivity with Li metal, and cyclic voltammetry confirms thatthe material is highly unstable at low potential, which excludes its use as a simpleelectrolyte in solid state batteries. We propose that it might be used both as anelectrolyte and as a negative electrode.The preliminary study on silicon based materials highlights difficulties in obtaining apure LGPS-type compound and questions the real nature of the so-calledthio-LiSICON structural model. Besides, it also shows the instability of thesematerials versus lithium metal
aoxiang, Xiaoxiang. "Development of new proton conducting materials for intermediate temperature fuel cells." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/887.
Повний текст джерелаSchmidt, Marek Wojciech, and Marek Schmidt@rl ac uk. "Phase formation and structural transformation of strontium ferrite SrFeOx." The Australian National University. Research School of Physical Sciences and Engineering, 2001. http://thesis.anu.edu.au./public/adt-ANU20020708.190055.
Повний текст джерелаCozic, Solenn. "Étude des propriétés électriques et structurales de verres de sulfures au lithium pour électrolytes de batteries tout-solide." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S054/document.
Повний текст джерелаThe energy storage market is in constant growth for both portable and stationary applications. To satisfy the requirements of various applications (electronic devices, hybrid-electric vehicles, renewable energy storage…), always more efficient, more compact and lightweight batteries have to be developed. Then, thanks to their high energy densities, batteries using Li metal anodes are the most promising to complete this challenge. However, the use of conventional liquid electrolytes raises safety issues, mainly related to the flammability of the organic liquid. In this thesis, glassy materials, exhibiting great interest towards developing solid electrolytes are considered and might enable the development of safe and efficient all-solid-state batteries. Here, Li-sulfide glasses, attractive for their ionic conduction properties, have been studied and characterized. The ionic conduction properties of glasses are still misunderstood and controversial, the structural investigation of glasses is of great interest in order to get a better understanding of structure-properties relationship. Then, the short and intermediate range order of prepared glasses have been investigated by the mean of various complementary structural analysis techniques. Finally, glassy materials are usually quite easy to shape. Thus, studied glasses in this thesis can also be used as thin-film electrolytes in microbatteries. First tests of sputtering of conducting thin-films have been performed by RF magnetron sputtering and constitute a first step in order to design microbatteries
Biswas, Tanujit. "Investigation of Switching mechanism, Thermal, Electrochemical and Structural properties of Solid Electrolytic, Superionic α-AgI based Silver Molybdate glass for Resistive Memory (RRAM) Applications". Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4346.
Повний текст джерелаLee, Andrew Campbell Mitchell Reginald Bowman Craig T. Gür Turgut M. "Analysis of solid state, solid oxide electrolyte based direct carbon fuel cells." 2010. http://purl.stanford.edu/jy917qh3163.
Повний текст джерелаLi, Shu-Tuan, and 李淑端. "Preparation of All-Solid-State Polymeric Electrolyte Electrochromic Device." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/56834843526330927035.
Повний текст джерела逢甲大學
材料與製造工程所
91
Abstract The rapid development of electrochromic materials has draw much attention to the evaluation of the performance of its devices. To understand the dynamic performance is necessary for the sake of making a reliable electrochromic device in commercial purpose, which in term mostly is all-solid-state electrochromic devices. The key to the success of these products reflects strongly on various electrochromic performance of such a device. These include response time, memory effect, transmittance, optical density change and color-bleach cyclic lifetime. In this study, a thin electrochromic WO3 layer which is deposited by magnetron sputtering. The representation of organic-solid-state electrolyte electrochromic device was performed with different thickness of organic electrolyte layers at different working voltages. The cyclic V-I curve, response time and UV-Vis. transmittance during coloring and bleaching state were measured to understand the effect of electrochromic properties. The memory effect and cyclic lifetime of these devices were also estimated. The result of this study shows the electrochromic devices with thicker organic electrolyte layer response faster, A threashold voltage of ±1.5 V is needed to drive the device. The cyclic lifetime is about 40 cycles when operated at ±2.5 V. Electrochromic device has a good memory effect and the transmittance of colored and bleached state go to a steady state gradually after several cycles. Higher transmittance and higher optical density change is also obtained. Light transmittance of colored and bleached state of the device can be adjusted by working voltage. The change of light transmittance and optical density change give rise to a maximum value when operated at a higher working voltage of ±3.0 V, over which the device becomes damaged. Working voltage also affects the device cyclic lifetime. Key words:tungsten oxide、electrochromic、all-solid-state polymeric electrolyte
Tseng, Jian-Wei, and 曾建瑋. "Preparation of Doped Ceria by Tape for Solid State Electrolyte." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/7ayh6r.
Повний текст джерела國立東華大學
材料科學與工程學系
95
The structure, microstructure, ionic conductivity and mechanical properties of 20mole% Ce0.8M0.2O1.9(M=La、Sm、Gd、Y)nanopowder, prepared by chemical coprecipitation were investigated. According to X-ray diffraction analysis, the diffraction peak cause shift depend on size of dopant radii. All of the dopant were solid solution in ceria with the cubic fluorite structure. The powders were pressed into pellets by uniaxially. All sample were sintered at 1500℃ for 5hr.The density of ceramices were over 90% of the theoretical density. The maximum ionic conductivity, σ800℃= 6.54 x 10-2S/cm with minimum activation energy, Ea=0.688eV was found for the Ce0.8Sm0.2O1.9 result in measure of ionic conductivity. The average grain size proportion to size of dopant radii. The maximum fracture toughness, KIC=6.73MPa.m1/2 was found for the Ce0.8La0.2O1.9 has the most large grain, it indicated could resists the mircocrack to pass. From the Zeta potential measure, we find the Poly(acrylic acid),PAA in the gadolinium doped-ceria(GDC) is 1wt%, the PAA in the samarium doped-ceria(SDC) is 2wt%, the PAA in the yttrium doped-ceria(YDC) is 2wt% and the PAA in the lanthanum doped-ceria(LDC) is 1.5wt%, respectively and well-dispersed ability between the particle. All have the pseudo-plastic fluid properties after to make slurries. The tape were sintered at 1500℃ for 5hr. The maximum viscosity value, η =4000~8500mPa.s was found for the Ce0.8La0.2O1.9 has poor densification, it exhibited bad dispersed of the slurry has great effect with regard to later sintering property.
劉柏柔. "A Study for Solid State Electrolyte in the Lithium Ionic Batteries." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/16690946020948188138.
Повний текст джерела義守大學
材料科學與工程研究所
87
LiTi2 (PO4)3 with the NASICON-type crystal structure is one of the promissing Lithium-ion conductive solid electrolytes. Without any cation substitution, LiTi2(PO4)3 has been reported to have a very low ionic conductivity at room temperature. However, if Al+3 and Si+4 partially replace Ti+4 and P+5 into this Lithium-containing crystal structure, its ionic conductivity is significantly increased. The system (Li,R)1+x (Ti,M)2 (SixP3x)O12 (R=Mg,Ca,and rare earth metai; M=Al, and transition metal) was studied, Through substitution of different ions, the ionic conductivity of this Lithium-containing battery was systematically measured at various (-20℃
Brandão, José Paulo Leal. "Study of Na2.99Ba0.005ClO solid-state electrolyte properties with temperature and radiation." Master's thesis, 2019. https://hdl.handle.net/10216/125678.
Повний текст джерелаBrandão, José Paulo Leal. "Study of Na2.99Ba0.005ClO solid-state electrolyte properties with temperature and radiation." Dissertação, 2019. https://hdl.handle.net/10216/125678.
Повний текст джерелаRaj, Vikalp. "Enabling Lithium Metal Anode for Garnet Electrolyte based Solid State Batteries." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5920.
Повний текст джерелаChu, Chen-Te, та 祝陳德. "Investigation of β"-Al2O3 for Composite Solid Electrolyte and All-Solid-State Sodium Ion Batteries". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/cnpqrc.
Повний текст джерелаLiou, Jiann-Hwa, and 劉建華. "Research and Development of High-Temperature Solid-State Electrolyte Ceramic Fuel Cell." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/66068661988091697005.
Повний текст джерела義守大學
材料科學與工程學系
87
Bismuth-oxide-containing materials have been extensively studied because of their excellent ionic conductivity at high temperatures. For obtaining a wide temperature and composition range forδ- Bi2O3 , several oxides such as rare earth oxides and transition metal oxides are used to stabilize this phase at low temperatures. In this study, a hot-pressing technique is used to fabricate these materials at different temperatures. Several analytical methods such as XRD, DTA, SEM, Dilatometric, and LCR meter method are also used to determine the relationships among dopant’s composition, phase, microstructure, and ionic conductivity. The hot-pressing method is found to be a powerful fabrication method for fully densifying bismuth-oxide-containing materials at 700℃~830℃in a short period of time 30 min . The stabilization effect ofδ- Bi2O3 is closely related to dopant’s composition. Among these oxide dopants, Y2O3 and Nb2O5 have better stabilization effects for high-temperature cubic phases. Fractographs of sintered specimens change with the phase and phase content. With the monoclinic, cubic phase, or rhombohedral phase, the corresponding fractograph is layered, intergranular, or twin-related morphology respectivity. Furthermore, the correlations between the high-temperature phase and the phase in the quenched specimen are explained from DTA curves. In these Bi2O3-MxOy binary systems, dopants Y2O3 and Nb2O5 show excellent ionic conductivities at 700℃, which are 0.049 S㎝-1 for 25 mol% Y2O3 and 0.047 S㎝-1 for 12 mol% Nb2O5.
Chang, Chein Ping, and 張建平. "The Preparation and Properties of Polymer Electrolyte for Solid State Lithium Battery." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/21279126983981855592.
Повний текст джерелаLai, Y. J., and 賴永俊. "The study of electrochemical behavior of solid state electrolyte for lithium battery." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/62795773410382944774.
Повний текст джерела國立清華大學
材料科學工程學系
88
TiO6 octahedra and PO4 tetrahedra are linked by the corners oxygen atoms to form a Lithium titanium phosphate , LiTi2(PO4)3 , which is a 3D network with space group R3C . The are two different types of lithium ion sites exist in the LiTi2(PO4)3 , N(1) and N(2) . In this study , Al2O3 and Fe2O3 are introduced to LiTi2(PO4)3 structure to observe its effects to the conductivity and chemical stability . It is found that the ionic conductivity of Li1.3Al0.09Fe0.21Ti1.7(PO4)3 would approach to 10-3 S/cm because the porosities is decreased and the densification of the pellet sample . Besides, the chemical stability of this system is excellent. Conseqently, the Li1.3FeyAl0.3-yTi1.7(PO4)3 (y=0~0.3) is a good material for solid state electrolyte .
Su, Shih-Hsuan, and 蘇世軒. "Fabrication and characterization of ionic SPEEK electrolyte for All-Solid-State supercapacitor." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/34523745941550383064.
Повний текст джерелаLiang, Yun-yuan, and 梁雲淵. "Synthesis of apatite-type lanthanum silicate as a solid oxide fuel cell electrolyte via solid state reaction." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/g8zr94.
Повний текст джерела國立臺灣科技大學
機械工程系
99
Lanthanum silicate structural with formula La10-x(SiO4)6O2+δ (LSO) are potential candidates for IT-SOFC and LT-SOFC because of its high ionic conductivity and low activation energy. Rather than fluorite and perovskite structure with high symmetric structure, lanthanum silicate with apatite-type structure is belong to hexagonal structure and believed to migrate via an interstitial conduction mechanism. Studies have indicated that LSO synthesized via solid state reactions have to be sintered at high temperature (>1600 ℃) to achieve the desired densities. According to phase equilibrium diagram of La2O3/SiO2, the composition of La9.33(SiO4)6O2 is a intermediate phase , and La2SiO5 or La2Si2O7 are easily formed as secondary phases. In addition, it’s difficult to control the stoichiometry of LSO due to the hygroscopicity of its staring materials La2O3. In this study, apatite-type lanthanum silicates La10(SiO4)6O3 were prepared by solid state reaction using powders of La(OH)3 and SiO2 as starting materials. The calcined samples are characterized by XRD and the results indicate that LSO have been obtained after calcination at 1200 ℃, but the La2Si2O7 impurity is formed after sintered at 1550 and 1600 ℃. TGA of the LSO powders were performed under hydrogen atmosphere, and the results indicates that LSO is a stable SOFC electrolyte materials. The effect of microstructure on the conductivity was also investigated, and the results show that the sintered ceramic with coarse grain size exhibits higher conductivity than fine one at low temperature. In addition, the aging test of LSO indicates that the sintered ceramic with La2Si2O7 impurity maintains a conductive stability.