A perylene anhydride crystal as a reversible electrode for K-ion batteries

作者:Xing Zhenyu; Jian Zelang; Luo Wei; Qi Yitong; Bommier Clement; Chong Elliot S; Li Zhifei; Hu Liangbing; Ji Xiulei
来源:Energy Storage Materials, 2016, 2: 63-68.
DOI:10.1016/j.ensm.2015.12.001

摘要

Abstract(#br)We demonstrate that PTCDA is a promising cathode for K-ion batteries with a high capacity of 122<ce:hsp sp="0.25"/>mAh/g at 20<ce:hsp sp="0.25"/>mA/g and moderate rate and cycling performance. Upon potassiation, PTCDA crystals experience a high level of amorphization, while upon depotassiation, the crystal structure is partially restored, revealed ex situ XRD and IR.