1. A Diluted Electrolyte for Long-Life Sulfurized Polyacrylonitrile-Based Anode-Free Li-S Batteries.
- Author
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Ma, Ting, Ren, Xiuyun, Hu, Liang, Teng, Wanming, Wang, Xiaohu, Wu, Guanglei, Liu, Jun, Nan, Ding, Li, Baohua, and Yu, Xiaoliang
- Subjects
LITHIUM sulfur batteries ,ENERGY density ,INDUSTRIAL costs ,ELECTROLYTES ,ANODES - Abstract
Lithium-metal batteries have attracted extensive research attention because of their high energy densities. Developing appropriate electrolytes compatible with lithium-metal anodes is of great significance to facilitate their practical application. Currently used electrolytes still face challenges of high production costs and unsatisfactory Coulombic efficiencies of lithium plating/stripping. In this research, we have developed a diluted electrolyte which is compatible with both lithium-metal anode and sulfurized polyacrylonitrile cathode. It presents a very high Li plating/stripping Coulombic efficiency of 99.3% over prolonged cycling, and the as-assembled anode-free Li-S battery maintains 71.5% of the initial specific capacity after 200 cycles at 0.1 A g
−1 . This work could shed light on designing a low-cost and high-performance liquid electrolyte for next-generation high-energy batteries. [ABSTRACT FROM AUTHOR]- Published
- 2022
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