Alkaline solid polymer electrolyte, electrode and electrochemical generator containing such as electrolyte
AssigneeConservatoire National des Arts et Metiers and Electricite de France (Service National)
InventorJean-Francois Fauvarque
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Abstract
Aqueous alkaline solid electrolyte comprising a polar polymer matrix which is solid at ambient temperature, and a compound or mixture of basic compounds selected from alkaline metal, alkaline-earth or ammonium hydroxides. Preferably, the matrix is a polyether homopolymer or copolymer of different ethers or polyethers. The invention also concerns electrodes and/or electrochemical generators containing such an alkaline polymer solid electrolyte.
Claims24
An aqueous alkaline polymer solid electrolyte consisting essentially of a mixture of a polar organic polymer matrix which is solid at ambient temperature, and a compound or a mixture of basic compounds chosen from alkali metal hydroxides or alkaline earth metal hydroxides or ammonium hydroxides, and water, the content of water being between 0.1 and 30% by weight, wherein the electrolyte is in the form of a liquid at a temperature in the range from 60.degree. to 150.degree. C., and is in the form of a solidified solution at ambient temperature.
Dependencies are inferred from the claim text.