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预嵌锂石墨材料制备超级电容器性能试验研究

李亚兵 王华

电源技术2017,Vol.41Issue(9):1332-1334,3.
电源技术2017,Vol.41Issue(9):1332-1334,3.

预嵌锂石墨材料制备超级电容器性能试验研究

Performance study of supercapacitor pre-embedded lithium graphite materials

李亚兵 1王华2

作者信息

  • 1. 漯河食品职业学院机电工程系,河南漯河462300
  • 2. 商丘职业技术学院机电工程系,河南商丘476000
  • 折叠

摘要

Abstract

The positive electrode of super capacitor prepared was the active carbon and the negative electrode was the pre embedded lithium graphite.The electrochemical performance of the capacitor was tested by the method of constant current charge discharge,AC impedance spectroscopy and cyclic voltammetry.By comparing with the traditional electric double layer capacitor,the electrochemical performance of the super capacitor was better.The operating voltage from 2.2 V to 3.8 V,the energy of the super capacitor was 3.58 times of the traditional double layer capacitor.When the current in the 200 mA/g cycle 2 000 times under 2.1 ~ 3.8 V,the retention rate of the super capacitor discharge capacity could be as high as 97.8%.

关键词

超级电容器/预嵌锂石墨/电化学性能/放电电容保持率

Key words

super capacitor/pre embedded lithium graphite/electrochemical performance/discharge capacity retention

分类

信息技术与安全科学

引用本文复制引用

李亚兵,王华..预嵌锂石墨材料制备超级电容器性能试验研究[J].电源技术,2017,41(9):1332-1334,3.

基金项目

2015河南省教育厅自然科学研究重点项目(158520010) (158520010)

电源技术

OA北大核心CSCDCSTPCD

1002-087X

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