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Separators for electrochemical cells

United States Patent

November 11, 2014
View the Complete Patent at the US Patent & Trademark Office
Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Preferably, the inorganic oxide comprises an hydrated aluminum oxide of the formula Al.sub.2O.sub.3.xH.sub.2O, wherein x is less than 1.0, and wherein the hydrated aluminum oxide comprises organic substituents, preferably comprising a reaction product of a multifunctional monomer and/or organic carbonate with an aluminum oxide, such as pseudo-boehmite and an aluminum oxide. Also provided are electrochemical cells comprising such separators.
Carlson; Steven Allen (Cambridge, MA), Anakor; Ifenna Kingsley (Allston, MA)
Optodot Corporation (Woburr, MA)
11/ 652,948
January 12, 2007
STATEMENT OF GOVERNMENT RIGHTS This invention was made with government support under Grant Number DE-FG02-02ER83542 awarded by the U.S. Department of Energy. The government has certain rights in the invention.