Self‐Healable Solid Polymeric Electrolytes for Stable and Flexible Lithium Metal Batteries. Issue 50 (30th October 2019)

• Record Type: Journal Article
• Authors: Wu, Na; Shi, Ya‐Ru; Lang, Shuang‐Yan; Zhou, Jin‐Ming; Liang, Jia‐Yan; Wang, Wei; Tan, Shuang‐Jie; Yin, Ya‐Xia; Wen, Rui; Guo, Yu‐Guo
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 50(2019)
• Page Start: 18146
• Page End: 18149
• Publication Date: 2019-10-30
• Subjects: flexible batteries -- lithium metal batteries -- self-healing materials -- solid polymer electrolytes -- wearable devices; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201910478
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The key issue holding back the application of solid polymeric electrolytes in high‐energy density lithium metal batteries is the contradictory requirements of high ion conductivity and mechanical stability. In this work, self‐healable solid polymeric electrolytes (SHSPEs) with rigid‐flexible backbones and high ion conductivity are synthesized by a facile condensation polymerization approach. The all‐solid Li metal full batteries based on the SHSPEs possess freely bending flexibility and stable cycling performance as a result of the more disciplined metal Li plating/stripping, which have great implications as long‐lifespan energy sources compatible with other wearable devices. Abstract : Solid but flexible : A self‐healing solid polymer electrolyte (featuring fast self‐healing within 60 s after a deep cut with a blade) endows solid Li metal full batteries with freely bending flexibility and superior cycling stability as demonstrated by the small capacity decay of 0.1 % per cycle over 100 cycles.