A Mixed Ether Electrolyte for Lithium Metal Anode Protection in Working Lithium–Sulfur Batteries
Chen WJ, Zhao CX, Li BQ, Jin Q, Zhang XQ, Yuan TQ, Zhang X, Jin Z, Kaskel S, Zhang Q (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 3
Pages Range: 160-165
Journal Issue: 2
DOI: 10.1002/eem2.12073
Abstract
Lithium‒sulfur (Li–S) battery is considered as a promising energy storage system to realize high energy density. Nevertheless, unstable lithium metal anode emerges as the bottleneck toward practical applications, especially with limited anode excess required in a working full cell. In this contribution, a mixed diisopropyl ether-based (mixed-DIPE) electrolyte was proposed to effectively protect lithium metal anode in Li–S batteries with sulfurized polyacrylonitrile (SPAN) cathodes. The mixed-DIPE electrolyte improves the compatibility to lithium metal and suppresses the dissolution of lithium polysulfides, rendering significantly improved cycling stability. Concretely, Li | Cu half-cells with the mixed-DIPE electrolyte cycled stably for 120 cycles, which is nearly five times longer than that with routine carbonate-based electrolyte. Moreover, the mixed-DIPE electrolyte contributed to a doubled life span of 156 cycles at 0.5 C in Li | SPAN full cells with ultrathin 50 μm Li metal anodes compared with the routine electrolyte. This contribution affords an effective electrolyte formula for Li metal anode protection and is expected to propel the practical applications of high-energy-density Li‒S batteries.
Involved external institutions
Beijing Forestry University / 北京林业大学
China (CN)
Tsinghua University
China (CN)
Harbin Normal University
China (CN)
University of Alberta
Canada (CA)
Technische Universität Dresden
Germany (DE)
China (CN)
Tsinghua University
China (CN)
Harbin Normal University
China (CN)
University of Alberta
Canada (CA)
Technische Universität Dresden
Germany (DE)
How to cite
APA:
Chen, W.-J., Zhao, C.-X., Li, B.-Q., Jin, Q., Zhang, X.-Q., Yuan, T.-Q.,... Zhang, Q. (2020). A Mixed Ether Electrolyte for Lithium Metal Anode Protection in Working Lithium–Sulfur Batteries. Energy & Environmental Materials, 3(2), 160-165. https://doi.org/10.1002/eem2.12073
MLA:
Chen, Wei-Jing, et al. "A Mixed Ether Electrolyte for Lithium Metal Anode Protection in Working Lithium–Sulfur Batteries." Energy & Environmental Materials 3.2 (2020): 160-165.
BibTeX: Download