Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 50, Pages 18240-18245Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201911229
Keywords
composite electrolytes; flexible batteries; Li-air batteries; lithium metal anodes; safety
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Funding
- National Key R&D Program of China [2016YFB0100103]
- National Natural Science Foundation of China [21725103, 21771013, 21905269, 51631004]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA21010210]
- Jilin Province Science and Technology Development Plan Funding Project [20180101203JC]
- Changchun Science and Technology Development Plan Funding Project [19SS010, 18DY012]
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The flexible Li-air battery (FLAB) with ultrahigh energy density is a hopeful candidate for flexible energy storage devices. However, most current FLAB operate in a pure oxygen atmosphere, which is limited by safety and corrosion issues from the metallic lithium anode and has thus greatly impeded the application of FLAB. Now, inspired by the protection effect of the umbrella, a stable hydrophobic composite polymer electrolyte (SHCPE) film with high flexibility, hydrophobicity, and stability was fabricated to protect the lithium anode. The SHCPE mitigated lithium corrosion and improved the capacity, rate performance, and cycle life (from 24 cycles to 95 cycles) of a battery in the ambient air. Based on the protection of SHCPE and the catalysis of MnOOH, the prepared pouch-type FLAB displayed high flexibility, stable performances, long cycling life (180 cycles), and excellent safety; the battery can bear soaking in water, high temperature, and nail penetration.
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