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

Faxing Wang; Xiaowei Wang; Zheng Chang; Xiongwei Wu; Xiang Liu; Lijun Fu; Yusong Zhu; Yuping Wu; Wei Huang

doi:10.1002/adma.201503097

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

Adv Mater. 2015 Nov 18;27(43):6962-8. doi: 10.1002/adma.201503097. Epub 2015 Sep 30.

Authors

Faxing Wang^{1

2}, Xiaowei Wang², Zheng Chang², Xiongwei Wu³, Xiang Liu¹, Lijun Fu¹, Yusong Zhu¹, Yuping Wu^{1

2}, Wei Huang¹

Affiliations

¹ College of Energy and Institute for Advanced Materials, Nanjing Tech University, Jiangsu Province, Nanjing, 211816, China.
² Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China.
³ College of Science, Hunan Agricultural University, Changsha, 410128, China.

PMID: 26421411
DOI: 10.1002/adma.201503097

Abstract

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).

Keywords: disordered carbon; gel polymer electrolytes; graphene; quasi-solid-state; sodium-ion capacitors.