Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 23, Issue 8, Pages 987-1004Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201200688
Keywords
energy storage; Li-air batteries; rechargeable batteries; oxygen-rich conditions; lithium peroxide
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Funding
- U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [KC020105-FWP12152]
- Pacific Northwest National Laboratory (PNNL)
- U.S. DOE
- Battelle Memorial Institute
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A Li-air battery could potentially provide three to five times higher energy density/ specific energy than conventional batteries and, thus, enable the driving range of an electric vehicle to be comparable to gasoline vehicles. However, making Li-air batteries rechargeable presents significant challenges, mostly related to the materials. Here, the key factors that influence the rechargeability of Li-air batteries are discussed with a focus on nonaqueous systems. The status and materials challenges for nonaqueous rechargeable Li-air batteries are reviewed. These include electrolytes, cathode (electrocatalysts), lithium metal anodes, and oxygen-selective membranes (oxygen supply from air). A perspective for the future of rechargeable Li-air batteries is provided.
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