Puzzles and confusions in supercapacitor and battery: Theory and solutions | |
Xie, Jiale1,2; Yang, Pingping2,6; Wang, Yi3; Qi, Tao3; Lei, Yong4,5; Li, Chang Ming1,2,6 | |
刊名 | JOURNAL OF POWER SOURCES |
2018-10-15 | |
卷号 | 401页码:213-223 |
关键词 | Electrochemical Energy Storage Electrochemical Capacitor Battery Confusion Solution |
ISSN号 | 0378-7753 |
DOI | 10.1016/j.jpowsour.2018.08.090 |
英文摘要 | Supercapacitors and batteries have been intensively investigated but there is much confusion and misleading between them in publications. In particular, some battery behaviours are incorrectly as supercapacitors and some reported "remarkable" performances like the high specific capacitance of 2188 F g(-1) for Ni(OH)(2) nano spheres are not true. It is likely that the energy storage mechanism and the similar device configuration/characterization techniques cause confusions. It is important to clarify and remove confusion about both theoretical and experimental aspects of these two types of energy devices. This review starts with briefing fundamentals of battery and supercapacitor specifically emphasizing the essential difference on energy storage mechanism between pseudocapacitors and batteries, in which the former undergoes rapid surface-controlled electrochemical reactions without diffusion control and phase transformation, while the latter stores energy in the crystal lattices or porous materials through much slower electrochemical reactions with limits from the phase transformation, chemical binding changes or/and reactant diffusions. Correct characterization and analysis methods such as cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy with a suggested working flowchart to distinguish them are presented while offering thoughtful discussions and explanations about the confusions. Perspectives are also offered for realizing high-energy density ECs without trading off its high power density. |
资助项目 | National Natural Science Foundation of China[21703150] ; China Postdoctoral Science Foundation[2015M582495] ; Suzhou University of Science and Technology[331812148] ; Suzhou University of Science and Technology[341834902] ; Southwest University[SWU111071] ; Chongqing Science and Technology Commission[cstc2012gjhz90002] |
WOS关键词 | Electrochemical Energy-storage ; Double-layer ; Electrode Material ; High-performance ; Fuel-cells ; Capacitors ; Graphene ; Ion ; Pseudocapacitance ; Density |
WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000449444500025 |
资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Suzhou University of Science and Technology ; Southwest University ; Chongqing Science and Technology Commission |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/26514] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Li, Chang Ming |
作者单位 | 1.Suzhou Univ Sci & Technol, Inst Mat Sci & Devices, Suzhou 215009, Peoples R China 2.Southwest Univ, Fac Mat & Energy, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China 3.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China 4.Ilmenau Univ Technol, Inst Phys, D-98693 Ilmenau, Germany 5.Ilmenau Univ Technol, IMN MacroNanos ZIK, D-98693 Ilmenau, Germany 6.Chongqing Key Lab Adv Mat & Technol Clean Elect P, Chongqing 400715, Peoples R China |
推荐引用方式 GB/T 7714 | Xie, Jiale,Yang, Pingping,Wang, Yi,et al. Puzzles and confusions in supercapacitor and battery: Theory and solutions[J]. JOURNAL OF POWER SOURCES,2018,401:213-223. |
APA | Xie, Jiale,Yang, Pingping,Wang, Yi,Qi, Tao,Lei, Yong,&Li, Chang Ming.(2018).Puzzles and confusions in supercapacitor and battery: Theory and solutions.JOURNAL OF POWER SOURCES,401,213-223. |
MLA | Xie, Jiale,et al."Puzzles and confusions in supercapacitor and battery: Theory and solutions".JOURNAL OF POWER SOURCES 401(2018):213-223. |
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