A Quasi-Solid-State Sodium-Ion Capacitor with High Energy Density

作者:Wang, Faxing; Wang, Xiaowei; Chang, Zheng; Wu, Xiongwei; Liu, Xiang; Fu, Lijun*; Zhu, Yusong; Wu, Yuping; Huang, Wei
来源:Advanced Materials, 2015, 27(43): 6962-+.
DOI:10.1002/adma.201503097

摘要

A quasi-solid-state sodium-ion capacitor is demonstrated with nanoporous disordered carbon and macroporous graphene as the negative and positive electrodes, respectively, using a sodium-ion-conducting gel polymer electrolyte. It can operate at a cell voltage as high as 4.2 V with an energy density of record high 168 W h kg(-1).