Wang Yun-Xiao, Lai Wei-Hong, Wang Yun-Xia, Chou Shu-Lei, Ai Xinping, Yang Hanxi, Cao Yuliang
College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China.
Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW, 2500, Australia.
Angew Chem Int Ed Engl. 2019 Dec 16;58(51):18324-18337. doi: 10.1002/anie.201902552. Epub 2019 Jul 11.
Emerging rechargeable sodium-ion storage systems-sodium-ion and room-temperature sodium-sulfur (RT-NaS) batteries-are gaining extensive research interest as low-cost options for large-scale energy-storage applications. Owing to their abundance, easy accessibility, and unique physical and chemical properties, sulfur-based materials, in particular metal sulfides (MS ) and elemental sulfur (S), are currently regarded as promising electrode candidates for Na-storage technologies with high capacity and excellent redox reversibility based on multielectron conversion reactions. Here, we present current understanding of Na-storage mechanisms of the S-based electrode materials. Recent progress and strategies for improving electronic conductivity and tolerating volume variations of the MS anodes in Na-ion batteries are reviewed. In addition, current advances on S cathodes in RT-NaS batteries are presented. We outline a novel emerging concept of integrating MS electrocatalysts into conventional carbonaceous matrices as effective polarized S hosts in RT-NaS batteries as well. This comprehensive progress report could provide guidance for research toward the development of S-based materials for the future Na-storage techniques.
新兴的可充电钠离子存储系统——钠离子电池和室温钠硫（RT-NaS）电池——作为大规模储能应用的低成本选择，正受到广泛的研究关注。由于硫基材料储量丰富、易于获取且具有独特的物理和化学性质，目前它们被视为基于多电子转换反应、具有高容量和优异氧化还原可逆性的钠存储技术的有前景的电极候选材料，特别是金属硫化物（MS）和元素硫（S）。在此，我们阐述了对硫基电极材料钠存储机制的当前理解。综述了钠离子电池中提高MS阳极电子导电性和耐受体积变化的最新进展及策略。此外，还介绍了RT-NaS电池中硫阴极的当前进展。我们还概述了一个新出现的概念，即将MS电催化剂整合到传统碳质基体中，作为RT-NaS电池中有效的极化硫主体。这份全面的进展报告可为未来钠存储技术硫基材料的开发研究提供指导。
