Go@Se@ni cathode materials for lithium-selenium battery

Authors

Jun Liu, Guangdong University of Technology
Daoyun Lan, Guangdong University of Technology
Xinyue Huang, Guangdong University of Technology
Feitao Zhang, Guangdong University of Technology
Aiqi Huang, Guangdong University of Technology
Yaoxin Xiao, Guangdong University of Technology
Zhuozhuo Zhao, Guangdong University of Technology
Liying Liu, Guangdong University of Technology
Xi Ke, Guangdong University of Technology
Zhicong Shi, Guangdong University of Technology
Zaiping Guo, University of WollongongFollow

RIS ID

134223

Publication Details

Liu, J., Lan, D., Huang, X., Zhang, F., Huang, A., Xiao, Y., Zhao, Z., Liu, L., Ke, X., Shi, Z. & Guo, Z. (2019). Go@Se@ni cathode materials for lithium-selenium battery. Journal of the Electrochemical Society, 166 (3), A5259-A5264.

Abstract

Selenium is a promising cathode material for high-energy lithium batteries. In this work, selenium was electrodeposited on nickel foam from aqueous selenite solution. The influences of pH values and current density on electrodeposited Se@Ni were investigated. It is found that electrodeposition at pH 7 and 0.5 mA cm −2 enables high current efficiency and produces uniform and smooth deposits. Graphene oxide (GO) was further coated on Se@Ni through physical adsorption to produce GO@Se@Ni. The developed GO@Se@Ni electrode delivers a high initial specific capacity of 593 mAh g −1 and good capacity retention over 100 cycles at 0.1 C.