@article{JIN2022, 
author = {Linghua JIN and Huiyuan YANG and Xiaojie CHEN and Weike WANG and Jian LI and Ye ZHANG},
title = {Electrochemical Energy Storage Performance of Nickel Oxalate Prepared by Precipitation Method},
year = {2022},
journal = {Journal of the Chinese Ceramic Society},
volume = {50},
number = {11},
pages = {2917-2923},
keywords = {nickel oxalate, precipitation method, electrode material, hybrid supercapacitors},
url = {https://www.sciopen.com/article/10.14062/j.issn.0454-5648.20220284},
doi = {10.14062/j.issn.0454-5648.20220284},
abstract = {The development of cathode materials with excellent electrochemical properties is crucial for the application of hybrid supercapacitors. NiC2O4∙2H2O cathode material was synthesized by a precipitation method, and its microstructure, morphology and electrochemical performance were investigated. The results show that NiC2O4∙2H2O exhibits a unique polyhedral particle structure, the particle sizes are 0.5‒2.0 μm, and each particle is composed of polycrystals, thus achieving a high specific capacity of 1096.2 F/g at a current density of 1 A/g. The assembled nickel oxalate//activated carbon hybrid supercapacitor still maintains an energy density of 10.2 Wh/kg at a high power density of 3.7 kW/kg. Connecting two hybrid devices in series can light up green and yellow LEDs. This demonstrates that NiC2O4∙2H2O has potential application prospects in electrochemical energy storage as a novel, low-cost and environmentally friendly cathode material.}
}