Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
location: home > paper >

High-performance Zinc-ion Hybrid Capacitors based on Novel Electrolyte with Li+-additive
DOI:
10.16355/j.cnki.issn1007-9432tyut.2022.03.015
Received:
Accepted:
Corresponding author | Institute | |
DENG Xiaoyang | College of Materials Science and Engineering, Taiyuan University of Technology |
abstract:
In this paper, a high-performance Zinc-ion hybrid supercapacitor was fabricated using coal pitch derived porous carbon (CPC) as cathode material. The hierarchical porous structure of the CPC cathode material is conducive to the rapid diffusion of electrolyte, and the abundant nitrogen and oxygen doping can provide reaction sites for the chemical adsorption/desorption reaction of Li+ and Zn2+ for additional pseudocapacitive capacity. More importantly, the deposition/dissolution reversibility and stability of zinc anode can be improved using the optimized electrolyte adding lithium sulfate, and the ion diffusion rate can also be accelerated during the reaction process, thus improving the rate performance and cycle stability of the device.
Keywords:
zinc-ion hybrid supercapacitor; porous carbon; electrolyte; zinc anode