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Articles de revues sur le sujet « Energy and power density »

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Auteur : Grafiati
Publié le 14 mars 2023

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1

Xu, Lifeng, Jiaqing Chu, Jingwen Wang, Yan Zhou et Dongsheng Wang. « Effects of Process Parameters on Density of GH5188 High-temperature Alloy after Selective Laser Melting ». Journal of Physics : Conference Series 2355, no 1 (1 octobre 2022) : 012077. http://dx.doi.org/10.1088/1742-6596/2355/1/012077.

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Abstract GH5188 high-temperature alloy specimens were fabricated by selective laser melting (SLM) and influencing laws of laser power, laser velocity and laser energy density on density of specimens were researched. The results shows that along with the laser energy density increases from 73.02 J/mm3 to 88.18 J/mm3, porosity in specimens decrease and relative density increases from 98.86% to 99.75%. However, as the laser energy density increase further, the density begins to decrease continuously. The main causes that effects relatively density including: the powder is not fused at low energy density, as well as the powder splash and gasification at higher energy density. Neither inadequate nor excessive laser energy density is conducive to improvement of density of specimens. As the increase of laser velocity and laser power, density of specimens increases firstly and then decreases. The variation trend of relative density is similar with that of laser energy density and there are reasonable ranges of laser velocity and laser power. However, influencing laws of laser velocity and laser power on density of specimens are different.
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Hubler, Alfred. « Synthetic atoms : Large energy density and a record power density ». Complexity 18, no 4 (22 janvier 2013) : 12–14. http://dx.doi.org/10.1002/cplx.21440.

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Boudraa, Abdel-Ouahab, Thierry Chonavel et Jean-Christophe Cexus. « -energy operator and cross-power spectral density ». Signal Processing 94 (janvier 2014) : 236–40. http://dx.doi.org/10.1016/j.sigpro.2013.05.022.

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Nozariasbmarz, Amin, Ravi Anant Kishore, Bed Poudel, Udara Saparamadu, Wenjie Li, Ricardo Cruz et Shashank Priya. « High Power Density Body Heat Energy Harvesting ». ACS Applied Materials & ; Interfaces 11, no 43 (2 octobre 2019) : 40107–13. http://dx.doi.org/10.1021/acsami.9b14823.

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Lyshevski, Sergey Edward. « High-power density miniscale power generation and energy harvesting systems ». Energy Conversion and Management 52, no 1 (janvier 2011) : 46–52. http://dx.doi.org/10.1016/j.enconman.2010.06.030.

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Buceti, Giuliano. « Sustainable power density in electricity generation ». Management of Environmental Quality : An International Journal 25, no 1 (7 janvier 2014) : 5–18. http://dx.doi.org/10.1108/meq-05-2013-0047.

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Purpose – When comparing renewables with fossil fuels, emotional approaches are fuelled by the difficulties in defining a proper metric able to make consistent comparisons among energy sources. In literature several approaches have been proposed, all effective in some way but ineffective in others. Variables like energy density, prices, estimated resources, life time emissions, water use and waste, all come at the same time to form an unmanageable mix. This paper discuss the adoption of a shared metric to clarify the boundary conditions that limit the solutions can be operated and to define which scenarios are sustainable and which are not. Design/methodology/approach – Energy density and power density are the cornerstones of the physical limitations in the exploitation of the energy sources. On this basis, a novel classification of energy sources, volumetric and flowing, has been proposed and discussed in light of three parameters: abundance, power density and sustainability. Eventually, an extended definition of power density based on life-cycle assessment is adopted. Findings – Sustainable power density makes possible compare the different energy options and shows how limitation in land comes to be the root of all resources limitations. Originality/value – A definition of a unique parameter is proposed and pros and cons of all energy options are calculated and put in a single graphic providing new insights into the energy policy.
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MacKay, David J. C. « Solar energy in the context of energy use, energy transportation and energy storage ». Philosophical Transactions of the Royal Society A : Mathematical, Physical and Engineering Sciences 371, no 1996 (13 août 2013) : 20110431. http://dx.doi.org/10.1098/rsta.2011.0431.

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Taking the UK as a case study, this paper describes current energy use and a range of sustainable energy options for the future, including solar power and other renewables. I focus on the area involved in collecting, converting and delivering sustainable energy, looking in particular detail at the potential role of solar power. Britain consumes energy at a rate of about 5000 watts per person, and its population density is about 250 people per square kilometre. If we multiply the per capita energy consumption by the population density, then we obtain the average primary energy consumption per unit area, which for the UK is 1.25 watts per square metre. This areal power density is uncomfortably similar to the average power density that could be supplied by many renewables: the gravitational potential energy of rainfall in the Scottish highlands has a raw power per unit area of roughly 0.24 watts per square metre; energy crops in Europe deliver about 0.5 watts per square metre; wind farms deliver roughly 2.5 watts per square metre; solar photovoltaic farms in Bavaria, Germany, and Vermont, USA, deliver 4 watts per square metre; in sunnier locations, solar photovoltaic farms can deliver 10 watts per square metre; concentrating solar power stations in deserts might deliver 20 watts per square metre. In a decarbonized world that is renewable-powered, the land area required to maintain today's British energy consumption would have to be similar to the area of Britain. Several other high-density, high-consuming countries are in the same boat as Britain, and many other countries are rushing to join us. Decarbonizing such countries will only be possible through some combination of the following options: the embracing of country-sized renewable power-generation facilities; large-scale energy imports from country-sized renewable facilities in other countries; population reduction; radical efficiency improvements and lifestyle changes; and the growth of non-renewable low-carbon sources, namely ‘clean’ coal, ‘clean’ gas and nuclear power. If solar is to play a large role in the future energy system, then we need new methods for energy storage; very-large-scale solar either would need to be combined with electricity stores or it would need to serve a large flexible demand for energy that effectively stores useful energy in the form of chemicals, heat, or cold.
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Choi, Christopher, David S. Ashby, Danielle M. Butts, Ryan H. DeBlock, Qiulong Wei, Jonathan Lau et Bruce Dunn. « Achieving high energy density and high power density with pseudocapacitive materials ». Nature Reviews Materials 5, no 1 (1 octobre 2019) : 5–19. http://dx.doi.org/10.1038/s41578-019-0142-z.

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Xu, Hui Bin, et Kui Zhang. « The UWB Signals of Power Spectral Density ». Advanced Materials Research 472-475 (février 2012) : 2748–51. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.2748.

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System or the waveform is energy, or has the power value. Generally, periodic signal and random signal is power signal,while the determine nonperiodic signal is energy signal. For the energy signal,we can use the energy spectrum density to describe the signal on the energy unit bandwidth,the unit is the joule/Hertz.For the power signal,we can use the power spectral density to describe the signal on the energy unit bandwidth,the unit for w/Hertz.
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Pellemoine, Frederique. « High power density targets ». Nuclear Instruments and Methods in Physics Research Section B : Beam Interactions with Materials and Atoms 317 (décembre 2013) : 369–72. http://dx.doi.org/10.1016/j.nimb.2013.06.038.

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FULLING, S. A., K. A. MILTON et JEF WAGNER. « ENERGY DENSITY AND PRESSURE IN POWER-WALL MODELS ». International Journal of Modern Physics : Conference Series 14 (janvier 2012) : 115–26. http://dx.doi.org/10.1142/s2010194512007271.

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A finite ultraviolet cutoff near a reflecting boundary yields a stress tensor that violates the basic energy-pressure relation. Therefore, a "soft" wall described by a power-law potential, which needs no ad hoc cutoff, is being investigated by the collaboration centered at Texas A&M University and the University of Oklahoma. Progress is reported here.
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FULLING, S. A., K. A. MILTON et JEF WAGNER. « ENERGY DENSITY AND PRESSURE IN POWER-WALL MODELS ». International Journal of Modern Physics A 27, no 15 (14 juin 2012) : 1260009. http://dx.doi.org/10.1142/s0217751x12600093.

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A finite ultraviolet cutoff near a reflecting boundary yields a stress tensor that violates the basic energy-pressure relation. Therefore, a "soft" wall described by a power-law potential, which needs no ad hoc cutoff, is being investigated by the collaboration centered at Texas A&M University and the University of Oklahoma. Progress is reported here.
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Zheng, J. P., et T. R. Jow. « High energy and high power density electrochemical capacitors ». Journal of Power Sources 62, no 2 (octobre 1996) : 155–59. http://dx.doi.org/10.1016/s0378-7753(96)02424-x.

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Shen, Yanbin, et Liwei Chen. « Materials electrochemistry for high energy density power batteries ». Chinese Science Bulletin 65, no 2-3 (1 janvier 2020) : 117–26. http://dx.doi.org/10.1360/tb-2019-0517.

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Rose, M. F. « High energy density capacitors for space power conditioning ». IEEE Aerospace and Electronic Systems Magazine 4, no 11 (novembre 1989) : 17–22. http://dx.doi.org/10.1109/62.41750.

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Carcaterra, A., et A. Sestieri. « ENERGY DENSITY EQUATIONS AND POWER FLOW IN STRUCTURES ». Journal of Sound and Vibration 188, no 2 (novembre 1995) : 269–82. http://dx.doi.org/10.1006/jsvi.1995.0591.

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Du, Ruxue, Minqiang Wu, Siqi Wang, Si Wu, Ruzhu Wang et Tingxian Li. « Experimental investigation on high energy-density and power-density hydrated salt-based thermal energy storage ». Applied Energy 325 (novembre 2022) : 119870. http://dx.doi.org/10.1016/j.apenergy.2022.119870.

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Bai, Yunxiang, Boyuan Shen, Shenli Zhang, Zhenxing Zhu, Silei Sun, Jun Gao, Banghao Li, Yao Wang, Rufan Zhang et Fei Wei. « Storage of Mechanical Energy Based on Carbon Nanotubes with High Energy Density and Power Density ». Advanced Materials 31, no 9 (25 octobre 2018) : 1800680. http://dx.doi.org/10.1002/adma.201800680.

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Peutzfeldt, A., et E. Asmussen. « Resin Composite Properties and Energy Density of Light Cure ». Journal of Dental Research 84, no 7 (juillet 2005) : 659–62. http://dx.doi.org/10.1177/154405910508400715.

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According to the ‘total energy concept’, properties of light-cured resin composites are determined only by energy density because of reciprocity between power density and exposure duration. The kinetics of polymerization is complex, and it was hypothesized that degree of cure, flexural strength, and flexural modulus were influenced not only by energy density, but also by power density per se. A conventional resin composite was cured at 3 energy densities (4, 8, and 16 J/cm2) by 6 combinations of power density (50, 100, 200, 400, 800, and 1000 mW/cm2) and exposure durations. Degree of cure, flexural strength, and flexural modulus increased with increasing energy density. For each energy density, degree of cure decreased with increasing power density. Flexural strength and modulus showed a maximum at intermediate power density. Within clinically relevant power densities, not only energy density but also power density per se had significant influence on resin composite properties.
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Paraschiv, Lizica-Simona, Spiru Paraschiv et Ion V. Ion. « Investigation of wind power density distribution using Rayleigh probability density function ». Energy Procedia 157 (janvier 2019) : 1546–52. http://dx.doi.org/10.1016/j.egypro.2018.11.320.

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Wang, Guohui, Zhiquan Dai, Yong Guan, Pengfei Dong et Lifeng Wu. « Power Management of Hybrid Power Systems with Li-Fe Batteries and Supercapacitors for Mobile Robots ». Advances in Mechanical Engineering 6 (1 janvier 2014) : 270537. http://dx.doi.org/10.1155/2014/270537.

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This paper presents an energy management strategy of a Li-Fe battery and supercapacitor hybrid power system to provide both high power density and energy density for mobile robots with fluctuating workloads. A two-phase power-optimization approach is proposed to exploit the high power density of supercapacitors and the high energy density of Li-Fe batteries. With our strategy, large peak power can be provided for a short time period whenever needed, while low power can be provided for very long time. A set of experiments have been conducted. The experimental results show that our strategy can effectively improve the performance of mobile robots and extend the lifetime of batteries.
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Li Hua, 李化, 吕霏 Lü Fei, 林福昌 Lin Fuchang, 陈耀红 Chen Yaohong, 李智威 Li Zhiwei, 章妙 Zhang Miao et 刘德 Liu De. « High energy storage density capacitors in pulsed power application ». High Power Laser and Particle Beams 24, no 3 (2012) : 554–58. http://dx.doi.org/10.3788/hplpb20122403.0554.

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Puthoff, H. E. « Electromagnetic potentials basis for energy density and power flux ». European Journal of Physics 37, no 5 (11 juillet 2016) : 055203. http://dx.doi.org/10.1088/0143-0807/37/5/055203.

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Lee, H. L., G. L. Bullard, G. E. Mason et K. Kern. « Improved pulse power sources with high-energy density capacitor ». IEEE Transactions on Magnetics 25, no 1 (1989) : 324–30. http://dx.doi.org/10.1109/20.22558.

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Wang, Chengxiang, Xianfen Wang, Luyuan Zhang et Longwei Yin. « MXene for high energy and power density : a perspective ». Journal of Physics : Energy 2, no 4 (18 août 2020) : 041002. http://dx.doi.org/10.1088/2515-7655/abab66.

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Moshrefi-Torbati, M., T. V. Lang, M. Hendijanizadeh, T. B. Le et S. M. Sharkh. « A novel hybrid energy harvester with increased power density ». Procedia Engineering 199 (2017) : 3498–503. http://dx.doi.org/10.1016/j.proeng.2017.09.464.

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Yang, Hao, Santhakumar Kannappan, Amaresh S. Pandian, Jae-Hyung Jang, Yun Sung Lee et Wu Lu. « Graphene supercapacitor with both high power and energy density ». Nanotechnology 28, no 44 (4 octobre 2017) : 445401. http://dx.doi.org/10.1088/1361-6528/aa8948.

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Tian, Ye, Li Jin, Hangfeng Zhang, Zhuo Xu, Xiaoyong Wei, E. D. Politova, S. Yu Stefanovich, Nadezda V. Tarakina, Isaac Abrahams et Haixue Yan. « High energy density in silver niobate ceramics ». Journal of Materials Chemistry A 4, no 44 (2016) : 17279–87. http://dx.doi.org/10.1039/c6ta06353e.

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Luo, Zhenya, Xiao Wang, Duanwei Chen, Qihong Chang, Shuhong Xie, Zengsheng Ma, Weixin Lei, Junan Pan, Yong Pan et Jianyu Huang. « Ultrafast Li/Fluorinated Graphene Primary Batteries with High Energy Density and Power Density ». ACS Applied Materials & ; Interfaces 13, no 16 (19 avril 2021) : 18809–20. http://dx.doi.org/10.1021/acsami.1c02064.

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Liu, Feihua, Qi Li, Zeyu Li, Lijie Dong, Chuanxi Xiong et Qing Wang. « Ternary PVDF-based terpolymer nanocomposites with enhanced energy density and high power density ». Composites Part A : Applied Science and Manufacturing 109 (juin 2018) : 597–603. http://dx.doi.org/10.1016/j.compositesa.2018.03.019.

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Li, Jianlin, Zhijia Du, Rose E. Ruther, Seong Jin AN, Lamuel Abraham David, Kevin Hays, Marissa Wood et al. « Toward Low-Cost, High-Energy Density, and High-Power Density Lithium-Ion Batteries ». JOM 69, no 9 (12 juin 2017) : 1484–96. http://dx.doi.org/10.1007/s11837-017-2404-9.

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Cai, Pingwei, Yan Li, Junxiang Chen, Jingchun Jia, Genxiang Wang et Zhenhai Wen. « An Asymmetric-Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density ». ChemElectroChem 5, no 4 (18 décembre 2017) : 589–92. http://dx.doi.org/10.1002/celc.201701269.

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Xie, Aiwen, Jian Fu, Ruzhong Zuo, Cong Zhou, Zhenliang Qiao, Tianyu Li et Shujun Zhang. « NaNbO3-CaTiO3 lead-free relaxor antiferroelectric ceramics featuring giant energy density, high energy efficiency and power density ». Chemical Engineering Journal 429 (février 2022) : 132534. http://dx.doi.org/10.1016/j.cej.2021.132534.

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Šimić, Zvonimir, Danijel Topić, Goran Knežević et Denis Pelin. « Battery energy storage technologies overview ». International journal of electrical and computer engineering systems 12, no 1 (21 avril 2021) : 53–65. http://dx.doi.org/10.32985/ijeces.12.1.6.

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Battery technologies overview for energy storage applications in power systems is given. Lead-acid, lithium-ion, nickel-cadmium, nickel-metal hydride, sodium-sulfur and vanadium-redox flow batteries are overviewed. Description, graphical representation, advantages and disadvantages as well as technical characteristics are given for all technologies. Differences and similarities between different battery technologies are perceived. Battery technologies are considered with respect to peak shaving, load leveling, power reserve, integration of renewable energy, voltage and frequency regulation and uninterruptible power supply applications. According to technical characteristics for overviewed technologies, comparison between battery storage technologies is given through diagrams which are uniformed. Comparison is done according to specific power, specific energy, power density, energy density, power cost, energy cost, lifetime, lifetime cycles, cell voltage and battery technology efficiency.
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Fan, Tao, et Xiaohua Shao. « Functionally Graded Piezoelectric Energy Harvester Using Thin Cylindrical Shell ». International Journal of Structural Stability and Dynamics 17, no 08 (octobre 2017) : 1750085. http://dx.doi.org/10.1142/s0219455417500857.

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Presented herein is a functionally graded piezoelectric energy harvester using a thin cylindrical shell. The torsional mode for the thin cylindrical shell is studied and the effects of the functionally graded parameters on the power density are discussed. The analytical expressions for the power density are derived. From the results obtained, it can be observed that the functionally graded constant has obvious influences on the peak value of the power density. Moreover, larger values of the power density may be obtained by increasing the elastic parameter and the mass density. This work is expected to be useful in the analysis and design of energy harvester as well as new kinds of energy systems.
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Norman, Helen. « Power up ». Consumer Electronics Test & ; Development 2021, no 2 (janvier 2022) : 24–25. http://dx.doi.org/10.12968/s2754-7744(23)70072-9.

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Charlie Pryor, applications engineer at Instron talks to Consumer Electronics Test & Development about the key mechanical testing processes required to finetune high energy density lithium-ion batteries
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Zhang, Shewale et Yun. « Fiber-Shaped Supercapacitors Fabricated Using Hierarchical Nanostructures of NiCo2O4 Nanoneedles and MnO2 Nanoflakes on Roughened Ni Wire ». Energies 12, no 16 (14 août 2019) : 3127. http://dx.doi.org/10.3390/en12163127.

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Electrostatic capacitors have high power density but low energy density. In contrast, batteries and fuel cells have high energy density but low power density. However, supercapacitors can simultaneously achieve both high power density and energy density. Herein, we propose a supercapacitor, in which etched nickel wire was used as a current collector due to its high conductivity. Two redox reactive materials, MnO2 nanoflakes and NiCo2O4 nanoneedles, were used in a hierarchical structure to cover the roughened surface of the Ni wire to maximize the effective surface area. Thus, a specific capacitance, energy density, and power density of 14.4 F/cm3, 2 mWh/cm3, and 0.1 W/cm3, respectively, was obtained via single-electrode experiments. A fiber-shaped supercapacitor was prepared by twisting two electrodes with solid electrolytes made of KOH and polyvinyl alcohol. Although the solid electrolyte had a low ionic conductivity, the energy density and power density were determined to be 0.97 mWh/cm3 and 49.8 mW/cm3, respectively.
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Chaurasia, Pramod Behari Lal, Nimai Panja et Kevin Kendall. « Performance study of power density in PEMFC for power generation from solar energy ». Renewable Energy 36, no 12 (décembre 2011) : 3305–12. http://dx.doi.org/10.1016/j.renene.2011.05.001.

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Salleh, Hanim, Mun Heng Lam, Linasuriani Muhamad et Mohd Firdaus bin Jaafar. « Structural Modification Strategies to Improve Piezoelectric Energy Harvester Performance ». Applied Mechanics and Materials 752-753 (avril 2015) : 934–40. http://dx.doi.org/10.4028/www.scientific.net/amm.752-753.934.

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Harvesting energy from vibrations has received massive attention due to it being a renewable energy source that has a wide range of applications. Over the years of development, there is always research to further improve and optimise piezoelectric energy harvesters. This paper presents work on improving piezoelectric energy harvesters based on the structural modifications. Four different strategies of structural modification are employed for optimization by using additional beam structure as well as incorporation of rubber layer. This work summarized the optimum performance of the strategies at a resonance frequency of 60 + 2 Hz at 0.25g. The parameters compared among the strategies are voltage, power, PZT power density, spatial power density and specific power density. The results are also compared with other similar work. In general, structure with an addition of silicon rubber beam was found to give the best power density output and produce 253% increase of power ouput as compared to basic PZT energy harvester.
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Duckers, Les. « Energy storage ». Central European Review of Economics and Management 6, no 3 (23 septembre 2022) : 33–45. http://dx.doi.org/10.29015/cerem.958.

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Aim: The aim of this paper is to explore Energy Storage requirements and options to suit the needs of systems and transport fed from renewables. The variability of wind and solar sources in particular and the demand for transport energy are seen as key issues. Design / Research methods: The paper outlines the need for energy storage and compares the energy density and power density of a selection of storage options. Conclusions / findings: The results illustrate the difficulties of finding storage mechanisms to rival fossil fuels in both energy density and power density. Moreover finding the natural resources to provide sufficient storage will be a serious challenge even though the economic costs of storage systems are falling.. Originality / value of the article: The article demonstrates the importance of energy storage to the successful development of renewable energy systems, and of the economic and physical characteristics that such energy storage schemes should have. Implications of the research: Energy storage as a topic should be given a high priority for research and development. Limitations of the research: This article is not comprehensive and a review of best practice internationally would be a valuable extension to this work. JEL: Q42
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41

Dean, Stephen O. « Creating Compact, High Power-Density Fusion Plasmas ». Journal of Fusion Energy 8, no 1-2 (juin 1989) : 3. http://dx.doi.org/10.1007/bf01050772.

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Kaur, Sunimerjit, Yadwinder Singh Brar et Jaspreet Singh Dhillon. « Multi-objective real-time integrated solar-wind-thermal power dispatch by using meta-heuristic technique ». AIMS Energy 10, no 4 (2022) : 943–71. http://dx.doi.org/10.3934/energy.2022043.

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<abstract> <p>The elevated demand for electrical power, expeditious expenditure of fossil fuels, and degradation of the environment because of power generation have renewed attentiveness to renewable energy resources (RER). The rapid augmentation of RER increases the convolutions in leveling the demand and generation of electrical power. In this paper, an elaborated $ \alpha $-constrained simplex method (ACSM) is recommended for multi-objective power dispatch problems. This methodology is devised after synthesizing the non-linear simplex method (SM) with the $ \alpha $-constrained method (ACM) and the evolutionary method (EM). ACSM can transfigure an optimization technique for the constrained problems by reinstating standard juxtapositions with $ \alpha $-level collations. The insertion of mutations and multi-simplexes can explore the periphery of the workable zone. It can also manage the fastness of convergence and therefore, the high precision solution can be obtained. A real-time multi-objective coordinated solar-wind-thermal power scheduling problem is framed. Two conflicting objectives (operating cost and emission) are satisfied. The case studies are carried out for Muppandal (Tamil Nadu), Jaisalmer (Rajasthan), and Okha (Gujarat), India. The annual solar and wind data are analyzed by using Normal Distribution and Weibull Distribution Density Factor, respectively. The presented technique is inspected on numerous archetype functions and systems. The results depict the prevalence of ACSM over particle swarm optimization (PSO), simplex method with mutations (SMM), SM, and EM.</p> </abstract>
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Ha, Ji Soo, Boo Youn Lee et Sung Hun Shim. « A Study on the Characteristics of Lift Fluctuation Power Spectral Density on a Fin Tube in the Heat Recovery Steam Generator ». Journal of Energy Engineering 24, no 4 (31 décembre 2015) : 211–16. http://dx.doi.org/10.5855/energy.2015.24.4.211.

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44

Hu, Haiming, et Yan Yan. « Probability Density Analysis of Wind Storage Output Based on Monte Carlo Simulation ». Journal of Physics : Conference Series 2195, no 1 (1 février 2022) : 012043. http://dx.doi.org/10.1088/1742-6596/2195/1/012043.

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Abstract Due to the relatively large fluctuation amplitude of the output power of wind farms, when using energy storage to stabilize the output characteristics of wind power, the impact of the addition of energy storage on the probability density of wind power output needs to be further analyzed. This paper uses Monte Carlo simulation algorithm to analyze the probability density of active power output in consideration of the operating state of wind power and compares the change of the output probability density curve after adding energy storage. According to the output probability density curve obtained by the algorithm, the abscissa of the curve is shifted to the right by one energy storage capacity unit after the addition of energy storage, so that the output probability density curve of the wind storage system can reach the required value by adding energy storage.
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45

Zubtsov, V. I. « Technology to Increase Energy Density of Electric Car Batteries ». International Journal of Electrical Engineering and Computer Science 4 (2 septembre 2022) : 40–44. http://dx.doi.org/10.37394/232027.2022.4.6.

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The article deals with a small-sized unit developed using ferro-piezoelectric ceramics for electric power generation. The use of an electrochemical generator in the unit makes it possible to increase the efficiency of electricity generation by controlling the polarization of ferro-piezoelectric ceramics. At the consumption of 1 joule of electricity, using mechanical energy, 3, 5...5 joules of output electrical energy are generated. The increase in the energy density of the batteries occurs in two stages: the first stage is to increase the degree of polarization of the segmentelectric, the second stage is to increase the electrical power to the load. The power plant efficiency is about 55...60 percent and depends on the ceramic modification and the electric circuit.
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Yaghjian, Arthur D. « Power Flow, Energy Density, and Group/Energy Transport Velocities in Spatially Dispersive Media ». Radio Science 53, no 3 (mars 2018) : 303–13. http://dx.doi.org/10.1002/2017rs006489.

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Song, Baijie, Kun Zhu, Hao Yan, Liuxue Xu, Bo Shen et Jiwei Zhai. « High energy storage density with high power density in Bi0.2Sr0.7TiO3/BiFeO3 multilayer thin films ». Journal of Materials Chemistry C 9, no 13 (2021) : 4652–60. http://dx.doi.org/10.1039/d0tc05646d.

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A novel Bi0.2Sr0.7TiO3/BiFeO3 thin film prepared by sol–gel/spin coating possesses ultrahigh energy storage density, good thermal stability and excellent charge-discharge performance.
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Li, Zhongjie, Yong Liu, Peilun Yin, Yan Peng, Jun Luo, Shaorong Xie et Huayan Pu. « Constituting abrupt magnetic flux density change for power density improvement in electromagnetic energy harvesting ». International Journal of Mechanical Sciences 198 (mai 2021) : 106363. http://dx.doi.org/10.1016/j.ijmecsci.2021.106363.

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Chen, Chih-Yao, Chen-Yen Fan, Ming-Tsung Lee et Jeng-Kuei Chang. « Tightly connected MnO2–graphene with tunable energy density and power density for supercapacitor applications ». Journal of Materials Chemistry 22, no 16 (2012) : 7697. http://dx.doi.org/10.1039/c2jm16707g.

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Khani, Hadi, Timothy J. Dowell et David O. Wipf. « Modifying Current Collectors to Produce High Volumetric Energy Density and Power Density Storage Devices ». ACS Applied Materials & ; Interfaces 10, no 25 (4 juin 2018) : 21262–80. http://dx.doi.org/10.1021/acsami.8b03606.

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