表面官能团对活性炭性能的影响附视频

被引:23
作者
庄新国
杨裕生
杨冬平
嵇友菊
唐致远
机构
[1] 北京防化研究院
[2] 北京大陆太极电池有限公司
[3] 天津大学化工学院 北京
[4] 北京
[5] 天津
关键词
超级电容器; 粉末活性炭电极材料; 表面官能团;
D O I
暂无
中图分类号
TM53 [电容器];
学科分类号
080801 ;
摘要
研究了表面官能团对粉末超级电容器活性炭电极材料漏电电流、电容贮存性和稳定性的影响。结果表明 :羧基浓度越高 ,电极材料漏电电流越大 ,贮存性越差 ;羧基浓度越高 ,材料静态电位越高 ,氧析出反应可能性越大 ,电极越不稳定。活性炭电极材料经保护气氛下的中温热处理能够部分消除表面含氧官能团 ,降低表面官能团和羧基相对浓度 ,从而减少漏电电流 ,提高电极稳定性。
引用
收藏
页码:199 / 202
页数:4
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