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High-energy metal air batteries

United States Patent

July 1, 2014
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Disclosed herein are embodiments of lithium/air batteries and methods of making and using the same. Certain embodiments are pouch-cell batteries encased within an oxygen-permeable membrane packaging material that is less than 2% of the total battery weight. Some embodiments include a hybrid air electrode comprising carbon and an ion insertion material, wherein the mass ratio of ion insertion material to carbon is 0.2 to 0.8. The air electrode may include hydrophobic, porous fibers. In particular embodiments, the air electrode is soaked with an electrolyte comprising one or more solvents including dimethyl ether, and the dimethyl ether subsequently is evacuated from the soaked electrode. In other embodiments, the electrolyte comprises 10-20% crown ether by weight.
Zhang; Ji-Guang (Richland, WA), Xiao; Jie (Richland, WA), Xu; Wu (Richland, WA), Wang; Deyu (Richland, WA), Williford; Ralph E. (Richland, WA), Liu; Jun (Richland, WA)
Battelle Memorial Institute (Richland, WA)
13/ 910,065
June 4, 2013
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT This invention was made with government support under DE-AC05-76RL01830 awarded by the U.S. Department of Energy. The government has certain rights in the invention.