动力型超级电容器漏液模式下的性能研究

doi:10.12028/j.issn.2095-4239.2018.0040

储能科学与技术 ›› 2018, Vol. 7 ›› Issue (4): 661-666.doi: 10.12028/j.issn.2095-4239.2018.0040

动力型超级电容器漏液模式下的性能研究

杨斌^1,2, 丁升², 傅冠生², 王成扬¹, 阮殿波², 刘秋香²

1. 天津大学化工学院, 天津 300072;
2. 宁波中车新能源科技有限公司超级电容研究所, 浙江宁波 315112

收稿日期:2018-03-21 修回日期:2018-05-08 出版日期:2018-07-01 发布日期:2018-05-16
通讯作者: 王成扬,教授,博士生导师,E-mail:cywang@tju.edu.cn
作者简介:杨斌(1987-),男,博士研究生,主要从事超级电容器电极材料、器件制备与工艺技术研究,E-mail:yang7452599@163.com

Research on the performance of electrolyte leakage power-based supercapacitor

YANG Bin^1,2, DING Sheng², FU Guansheng², WANG Chengyang¹, RUAN Dianbo², LIU Qiuxiang²

1. School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China;
2. Institute of Supercapacitor, Ningbo CRRC New Energy Technology Co. Ltd, Ningbo 315112, Zhejiang, China

Received:2018-03-21 Revised:2018-05-08 Online:2018-07-01 Published:2018-05-16

摘要/Abstract

摘要： 高能量密度和高功率密度的动力型超级电容器因其突出的性能优势成为了新型储能与节能应用市场的重点发展方向。在模拟单体漏液的工况条件下，本工作以商品化动力型超级电容器为实验对象，对比分析了漏液前后单体表面及电化学性能的差异，比较了高温加速寿命测试过程单体的性能变化。结果表明，漏液后电解液将以银白色晶体形式呈现，漏液量达12 g以上后，单体容量、内阻值将急剧衰减，当漏液量达28.5 g后，单体容量将下降12.1%，内阻增大31.3%。高温加速寿命测试过程漏液单体（Cap-4）泄压频次增多，容量衰减38.4%、内阻上升85.1%。

关键词: 超级电容器, 漏液, 失效模式, 电化学特性

Abstract: With the excellent energy density and power density, power-based supercapacitor has been regarded as the most important devices for energy storage and saving system. After simulated the electrolyte leakage situation, using the commercial power-based supercapacitor as the target, the comparison between leakage and no-leakage electrolyte cells have been analyzed, and its high temperature accelerated life test also been discussed. It shows that silver crystal appears, and once the leakage amount is more than 12 g, cell's capacitance and ESR will decrease dramatically. When the amount is over 28.5 g, cell's capacitance and ESR will drop off near 12.1% and 31.3%, respectively. The accelerated life test (Cap-4) also revealed that the over leakage cell will represent more gas release times, and its capacitance will decrease 38.4% and ESR reaches 85.1%.

Key words: supercapacitor, leakage, failure mode, electrochemical performance

中图分类号:

TK53

杨斌, 丁升, 傅冠生, 王成扬, 阮殿波, 刘秋香. 动力型超级电容器漏液模式下的性能研究[J]. 储能科学与技术, 2018, 7(4): 661-666.

YANG Bin, DING Sheng, FU Guansheng, WANG Chengyang, RUAN Dianbo, LIU Qiuxiang. Research on the performance of electrolyte leakage power-based supercapacitor[J]. Energy Storage Science and Technology, 2018, 7(4): 661-666.

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动力型超级电容器漏液模式下的性能研究

Research on the performance of electrolyte leakage power-based supercapacitor

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