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A Diluted Electrolyte for Long-Life Sulfurized Polyacrylonitrile-Based Anode-Free Li-S Batteries.

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.

SUBMITTER: Ma T

PROVIDER: S-EPMC9413679 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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A Diluted Electrolyte for Long-Life Sulfurized Polyacrylonitrile-Based Anode-Free Li-S Batteries.

Ma Ting T Ren Xiuyun X Hu Liang L Teng Wanming W Wang Xiaohu X Wu Guanglei G Liu Jun J Nan Ding D Li Baohua B Yu Xiaoliang X

Polymers 20220815 16

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 an ...[more]

PMID: 36015568

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