An Emerging Energy Storage System: Advanced Na-Se Batteries

Xiang Long Huang; Chaofu Zhou; Weidong He; Shuhui Sun; Yu-Lun Chueh; Zhiming M Wang; Hua Kun Liu; Shi Xue Dou

doi:10.1021/acsnano.0c10078

An Emerging Energy Storage System: Advanced Na-Se Batteries

ACS Nano. 2021 Apr 27;15(4):5876-5903. doi: 10.1021/acsnano.0c10078. Epub 2021 Mar 31.

Authors

Xiang Long Huang¹, Chaofu Zhou¹, Weidong He², Shuhui Sun³, Yu-Lun Chueh⁴, Zhiming M Wang¹, Hua Kun Liu⁵, Shi Xue Dou⁵

Affiliations

¹ Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
² School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
³ Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Varennes, QC J3X 1S2, Canada.
⁴ Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
⁵ Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, North Wollongong 2500, Australia.

PMID: 33788558
DOI: 10.1021/acsnano.0c10078

Abstract

Sodium-selenium (Na-Se) batteries have aroused enormous attention due to the large abundance of the element sodium as well as the high electronic conductivity and volumetric capacity of selenium. In this battery system, some primary advances in electrode materials have been achieved, mainly involving the design of Se-based cathode materials. In this Review, the electrochemical mechanism is discussed, thus revealing the main challenges in Na-Se batteries. Then, the advances in the design of Se-based cathode materials for Na-ion storage are systemically summarized, classified, and discussed, including Se/carbon composite, Se/polar material/carbon composites, and hybrid Se_xS_y alloys. Some potential strategies enabling the improvement of crucial challenges and enhancement of electrochemical performance are also proposed to provide guidelines for the enhancements of Na-ion storage. An outlook for future valuable research directions is proposed to understand more deeply the electrochemical mechanism of Na-Se batteries and promote their further developments in full cell performance and commercialization.

Keywords: carbonaceous materials; cathode materials design; challenges; electrochemical mechanism; energy storage; sodium storage technology; sodium−selenium batteries; strategies.