Graphene-Based Cathode Materials for Lithium-Ion Capacitors: A Review

Nanomaterials

Yong Liu¹  Zexin Peng²  Changle Li²  Yanliang Yang²  Dong Sui²  Xiaotong He²  Yanhong Lu³  Meijia Chang⁴ 

[1] Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of Non-Ferrous Materials Science & Processing Technology, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China;Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China;School of Chemistry & Material Science, Langfang Normal University, Langfang 065000, China;School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang 471023, China;

关键词: lithium-ion capacitors;    graphene;    graphene-based nanomaterials;    capacitor-type electrodes;    cathode materials;   

DOI  :  10.3390/nano11102771

来源: DOAJ

【 摘 要 】

Lithium-ion capacitors (LICs) are attracting increasing attention because of their potential to bridge the electrochemical performance gap between batteries and supercapacitors. However, the commercial application of current LICs is still impeded by their inferior energy density, which is mainly due to the low capacity of the cathode. Therefore, tremendous efforts have been made in developing novel cathode materials with high capacity and excellent rate capability. Graphene-based nanomaterials have been recognized as one of the most promising cathodes for LICs due to their unique properties, and exciting progress has been achieved. Herein, in this review, the recent advances of graphene-based cathode materials for LICs are systematically summarized. Especially, the synthesis method, structure characterization and electrochemical performance of various graphene-based cathodes are comprehensively discussed and compared. Furthermore, their merits and limitations are also emphasized. Finally, a summary and outlook are presented to highlight some challenges of graphene-based cathode materials in the future applications of LICs.

【 授权许可】

Unknown