Journal
CHEMICAL COMMUNICATIONS
Volume 58, Issue 64, Pages 8994-8997Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc03096a
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Funding
- National Natural Science Foundation of China [51961145302]
- Israeli Science Foundation [51961145302]
- China Postdoctoral Science Foundation [2020M682403]
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Ether-based electrolyte enables Li metal batteries to operate at lower temperatures with improved capacity retention and cycling stability.
Ether-based electrolyte promotes robust LiF/LiNxOy-rich solid-electrolyte interphases (SEIs) with favorable interfacial conduction and accommodation, thus decreasing operation temperatures of Li metal batteries to -40 degrees C. At -30 degrees C, the Li||Ni0.85Co0.05Al0.1O2 battery achieves >80% retention (130 mA h g(-1)) of its room-temperature capacity, and presents stable cycling over 100 cycles.
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