Back to Search Start Over

Electrochemical Performance of Sandwich-Like Porous Co3O4Nanostructures on Nickel Foam

Authors :
Sun, Bo
Zhang, Hui
Chen, Wenge
Elmarakbi, Ahmed
Fu, Yong-Qing
Source :
Journal of the Electrochemical Society; October 2022, Vol. 169 Issue: 10 p100530-100530, 1p
Publication Year :
2022

Abstract

Co3O4is a good anode candidate for high-performance lithium ion batteries (LIBs), attributed to its high specific capacity. However, due to its poor conductivity and significant volume expansion during electrochemical reactions, electrochemical performance of Co3O4electrode is quite poor for practical applications. Co3O4electrodes with various micro-/nanostructures have been designed and synthesized but their performances are still unsatisfied. In this study, we propose and develop a novel sandwich type of Co3O4nanostructures by adjusting the ratio of ammonium fluoride and urea during hydrothermal reactions. When this sandwich-like Co3O4composite electrode was used as the electrode for LIBs, it retained an outstanding reversible capacity of 857 mAh g−1after 70 cycles at a current density of 500 mA g−1. When the current density was increased to 1000 mA g−1, the reversible capacity was kept at 865 mAh g−1with insignificant changes of its capacity.

Details

Language :
English
ISSN :
00134651 and 19457111
Volume :
169
Issue :
10
Database :
Supplemental Index
Journal :
Journal of the Electrochemical Society
Publication Type :
Periodical
Accession number :
ejs62037719
Full Text :
https://doi.org/10.1149/1945-7111/ac99a4