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Reduced-Area Current Collectors for Rechargeable Batteries

United States Patent Application

20140212712
A1
View the Complete Application at the US Patent & Trademark Office
A novel electrode current collector design that can improve performance and extend cycle life for rechargeable batteries based on metal electrodeposition is disclosed. The novel electrode current collector has a reduced effective surface area that can help to balance efficiencies between battery electrodes and to ensure non-uniform electrodeposition of metal onto the anode current collector during charge. One result is mitigation of internal short circuits that can cause a battery to fail prematurely.
Ito, Yasumasa (Nagoya, JP), Banerjee, Sanjoy (New York, NY)
RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK (New York NY)
14/ 129,865
July 5, 2012
STATEMENT OF GOVERNMENT SUPPORT [0002] The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy National Energy Technology Laboratory under Contract No. DE-EE0004224 and by the New York State Energy Research and Development Authority under Contract No. 18786. The Government has certain rights in this invention.