Bipolar polyimide COF electrode

91% retention over 4000 cycles

Utilizes n-type imide units and p-type quaternary nitrogen centers to store Li+ and PF6- respectively, surpassing most bipolar electrodes in dual-ion batteries.

Gu, Shuai · Chen, Jingjing · Hao, Rui · Chen, Xi · Zhiqiang, Wang · Hussain, Iftikhar · Liu, Guiyu · Liu, Kun · Gan, Qingmeng · Li, Zhiqiang · Guo, Hao · Li, Yingzhi · Huang, He · Liao, Kemeng · Zhang, Kaili · Lu, Zhouguang

Chemical Engineering Journal 2023

Advantages

165 mAh/g at 30 mA/g

91% after 4000 cycles at 1 A/g

surpassing most of the bipolar electrodes