Solid polymeric electrolytes for electrochromic devices having reduced acidity and high anodic stability
AssigneeEIC Laboratories, Inc.
InventorsStuart F. Cogan, R. David Rauh
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Abstract
Polymer electrolytes comprising co-polymers of vinylic, protonic acids and N,N' dialkyl substituted acrylamides and methacrylamides with high anodic stability, reduced acidity and high mechanical stiffness suitable for electrochromic devices, such as windows, mirrors and information displays. A preferred embodiment of the invention is a co-polymer with a composition of 30% 2-acrylamido-2-methyl propane sulfonic acid, 50% N,N dimethyl acrylamide and 20% water by weight.
Claims10
A co-polymer electrolyte, comprising a first monomer of a vinylic protonic acid and a second monomer comprising of either a N,N' dialkyl substituted acrylamide or a N,N'-dialkyl substituted methacrylamide or a mixture of the two, useful in electrochromic devices and exhibiting high anodic stability.
Dependencies are inferred from the claim text.