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High-rate overcharge-protection separators for rechargeable lithium-ion batteries and the method of making the same

United States Patent

December 20, 2016
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Overcharge Protection Prevents Exploding Lithium Ion Batteries
This invention relates to low-cost, electroactive-polymer incorporated fine-fiber composite membranes for use as overcharge and/or overdischarge protection separators in non-aqueous electrochemical cells and the methods for making such membranes.
Chen; Guoying (Oakland, CA), Richardson; Thomas J. (Oakland, CA)
The Regents of the University of California (Oakland, CA)
14/ 400,776
May 14, 2013
STATEMENT OF GOVERNMENTAL SUPPORT The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The government has certain rights in this invention.