Superior performance for lithium-ion battery with organic cathode and ionic liquid electrolyte  

作　　者：Xueqian Zhang Wenjun Zhou Meng Zhang Zhinan Yang Weiwei Huang 

机构地区：[1]State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China [2]School of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China [3]National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,Hebei,China

出　　处：《Journal of Energy Chemistry》2021年第1期28-32,I0002,共6页能源化学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 21875206 and 21403187);the Natural Science Foundation of Hebei Province (B2019203487)。

摘　　要：Organic small structure quinones go with ionic liquids electrolytes would exhibit ultrastable electrochemical properties.In this study,calix[6]quinone(C6Q) cathode was matched with ionic liquid electrolyte Li[TFSI]/[PY13][TFSI](bis(trifluoromethane)sulfonimide lithium salt/N-methyl-N-pro pylpyrrolidinium bis(trifluoromethanesulfonyl)amide) to assemble lithium-ion batteries(LIBs).The electrochemical performance of LIBs was systematically studied.The capacity retention rates of C6Q through 1000 cycles at current densities of 0.2 C and 0.5 C were 70% and 72%,respectively.At 5 C, the capacity was maintained at 190 mAh g^(-1) after 1000 cycles,and 155 mAh g^(-1) even after 10,000 cycles,comparable to inorganic materials.This work would give a big push to the practical process of organic electrode materials in energy storage.

关 键 词：Lithium-ion batteries quinone Ionic liquids Superior performance 

分 类 号：TM912[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]