Journal
ACS ENERGY LETTERS
Volume 2, Issue 6, Pages 1378-1384Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.7b00292
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Funding
- Advanced Low Carbon Technology Research and Development Program (ALGA) of Japan project
- National Basic Research Program of China [2014CB932300]
- National Natural Science Foundation (NSF) of China [21633003, 21373111]
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With the increasing demands of electric vehicle and grid storage, the solid-state Li-O-2 battery is generally considered as an alternative cost-effective energy-storage device because of its high energy density and safety. However, there are several challenges that need to be overcome to meet the stringent requirements imposed by diverse applications, especially at high temperature. In this work, an ion-conducting hybrid solid electrolyte (HSE) integrating polymer electrolyte with ceramic electrolyte (1:1 w/w) has been successfully designed and prepared, which displays high Li+ transference number (0.75) and ionic conductivity (0.32 mS cm(-1)) at room temperature. The solid-state Li-O-2 battery enabled by the as-prepared HSE delivers 2 a superior long life (350 cycles, >145 days) at 50 degrees C to that of the conventional ether-based nonaqueous Li-O-2 battery. The use of a HSE could lead to a new avenue for the development of high performance solid-state Li-O-2 batteries.
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