Electrochromic device containing acid copolymer electrolyte

Details Electrochromic device containing acid copolymer electrolyte Electrochromic device containing acid copolymer electrolyte

1980-10-23

1982-11-30

Davie, James W.

G02F 117

Patent

active

043613853

ABSTRACT:
In electrochromic devices having a layer of electrochromic material, e.g. tungsten oxide, in contact with a polymeric electrolyte layer, the stability and speed of the device are improved by using a copolymer of 2-acrylamido-2-methylpropanesulfonic acid and vinyl sulfonic acid as the polymeric electrolyte.

REFERENCES:
patent: 3971624 (1976-07-01), Bruesch
patent: 4116545 (1978-09-01), Reddy
patent: 4116546 (1978-09-01), Leibowitz
patent: 4120568 (1978-10-01), Deb et al.
patent: 4174152 (1979-11-01), Giglia et al.
patent: 4175838 (1979-11-01), Randin

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