锂离子电容器的自放电

IF 5.4 Q2 CHEMISTRY, PHYSICAL Journal of Power Sources Advances Pub Date : 2020-10-01 DOI:10.1016/j.powera.2020.100026
Binson Babu, Andrea Balducci
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引用次数: 10

摘要

本文对锂离子电容器(lic)的自放电进行了详细的研究。迄今为止,对这一过程的研究还很有限。然而,考虑到其性能的优化,了解lic中发生的自放电动力学显得很重要。我们发现,LIC显示出相当高的自放电,与电化学电容器相当,而这一过程的主要责任是正极。此外,我们证明了重复浮子测试的使用会影响lic的自放电,并且在高压下50-100 h后,其自放电显着降低。
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Self-discharge of lithium-ion capacitors

In this work we report a detailed investigation about the self-discharge of lithium-ion capacitors (LICs). To date, this process has been only marginally investigated. However,the understanding of the dynamics of the self-discharge taking place in LICs appear of importance in view of the optimization of their performance. We showed that LIC display a rather high self-discharge, comparable to that of electrochemical capacitor, and that the main responsible for this process is the positive electrode. Furthermore, we demonstrated that the use of repeated float tests is affecting the self-discharge of LICs, and that after 50–100 h at high voltage their self-discharge is significantly reduced.

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来源期刊
CiteScore
9.10
自引率
0.00%
发文量
18
审稿时长
64 days
期刊最新文献
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