储能科学与技术 ›› 2021, Vol. 10 ›› Issue (1): 198-201.doi: 10.19799/j.cnki.2095-4239.2020.0247

• 储能材料与器件 • 上一篇    下一篇

大容量动力型超级电容器存储性能

陈雪龙1(), 张　希2, 许传华3, 于学文1, 阮殿波2(), 乔志军1, 汪　俊3, 王朝阳3   

  1. 1.宁波中车新能源科技有限公司，浙江 宁波 315112
    2.宁波大学先进储能技术与装备研究院，浙江 宁波 315211
    3.中钢集团马鞍山矿山研究总院股份有限公司，安徽 马鞍山 243000
  • 收稿日期:2020-07-15 修回日期:2020-09-13 出版日期:2021-01-05 发布日期:2021-01-08
  • 作者简介:陈雪龙（1988—），男，工程师，研究方向为超级电容器关键材料，E-mail：xlchen@crrccap.com|阮殿波，高级工程师，研究方向为超级电容器关键材料，E-mail：ruandianbo@csrcap.com。
  • 基金资助:
    国家自然科学基金(22078164);国家重点研发计划(2017YFB1201005-09);安徽省重点研发计划(201903a05020030);山西省重大专项(20201102018);宁波市创新2025重大专项(2019B10109)

Storage performance of large-capacitance power supercapacitor

Xuelong CHEN1(), Xi ZHANG2, Chuanhua XU3, Xuewen YU1, Dianbo RUAN2(), Zhijun QIAO1, Jun WANG3, Chaoyang WANG3   

  1. 1.Ningbo CRRC New Energy Technology Co. Ltd. , Ningbo 315112, Zhejiang, China
    2.Institute of Advanced Energy Storage Technology and Equipment, Ningbo University, Ningbo 315211, Zhejiang, China
    3.Sinosteel Maanshan General Institute of Mining Research Co. Ltd. , Maanshan 243000, Anhui, China
  • Received:2020-07-15 Revised:2020-09-13 Online:2021-01-05 Published:2021-01-08

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摘要：

超级电容器的电荷存储能力受多个因素的影响。以商品化的大容量动力型超级电容器为研究对象，从充电电流、充电电压、恒压时间、存储温度和电解液体系5个方面对超级电容器单体的电压保持能力进行系统研究。结果表明，较低的充电电流、充电电压和环境温度以及较长的恒压时间有利于电荷储存，单体电压保持能力较好。此外，当使用的电解质盐相同时(四氟硼酸四乙基铵，TEA-BF4)，碳酸丙烯酯(PC)溶剂基电解液体系的电压保持能力较好；而当使用的溶剂相同时(PC基体系电解液时)，相同浓度的TEA-BF4电解液电压保持能力比四氟硼酸螺环季铵盐(SBP-BF4)电解液好。

关键词: 超级电容器, 存储性能, 自放电, 电压保持能力, 电压, 温度

Abstract:

The charge storage capacity of supercapacitors is affected by many factors. A study of the voltage holding ability of commercial large-capacitance power supercapacitors is systematically studied from five aspects: charging current, charging voltage, constant voltage time, storage temperature, and the electrolyte system. The results indicate that lower charging current, lower charging voltage, lower ambient temperature, and longer constant voltage time are conducive to charge storage and improved monomer voltage retention capability. When the electrolyte salt is fixed, specifically tetraethylammonium tetrafluoroborate (TEA-BF4), the solvent with the best voltage retention ability was propylene carbonate (PC). With a fixed solvent (PC) and concentration of electrolyte, the TEA-BF4 salt showed better voltage retention than spiro-(1,1′)-bipyrrolidinium tetrafluoroborate (SBP-BF4).

Key words: supercapacitor, storage performance, self-discharge, voltage retention capability, voltage, temperature

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