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Cured composite materials for reactive metal battery electrolytes

United States Patent

March 7, 2006
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
Novel Phosphazene Compounds for Enhancing Electrolyte Stability and Safety of Lithium-ion Cells
A solid molecular composite polymer-based electrolyte is made for batteries, wherein silicate compositing produces a electrolytic polymer with a semi-rigid silicate condensate framework, and then mechanical-stabilization by radiation of the outer surface of the composited material is done to form a durable and non-tacky texture on the electrolyte. The preferred ultraviolet radiation produces this desirable outer surface by creating a thin, shallow skin of crosslinked polymer on the composite material. Preferably, a short-duration of low-medium range ultraviolet radiation is used to crosslink the polymers only a short distance into the polymer, so that the properties of the bulk of the polymer and the bulk of the molecular composite material remain unchanged, but the tough and stable skin formed on the outer surface lends durability and processability to the entire composite material product.
Harrup; Mason K. (Idaho Falls, ID), Stewart; Frederick F. (Idaho Falls, ID), Peterson; Eric S. (Idaho Falls, ID)
Battelle Energy Alliance, LLC (Idaho Falls, OH)
10/ 194,376
July 11, 2002
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in the following invention pursuant to Contract No. DE-AC07-99ID13727 between the United States Department of Energy and Bechtel BWXT Idaho, LLC.