Cathodic electrochromic material, method of making, and new elec

Details Cathodic electrochromic material, method of making, and new elec Cathodic electrochromic material, method of making, and new elec

1987-12-24

1989-07-04

LaRoche, Eugene R.

G02F 101, G02F 117

Patent

active

048445924

ABSTRACT:
This invention teaches electrochromic lead oxide as a new electrochromic material. An electrochromic device is constructed from this material by forming a cathodic electrochromic device. A fast ion conductor is also provided which is capable of generating ions when an electric field is applied thereto. The fast ion conductor also permits ion movement therethrough while prohibiting electron movement therethrough. The fast ion conductor and the electrochromic lead oxide are arranged between an anode and a cathode to form an electrochromic device. Preferably, the lead oxide is in a layer next to the cathode. With the lead oxide layer next to the cathode, the device is a cathodic electrochromic device which can generate a dark grey color.

REFERENCES:
patent: 4182551 (1980-01-01), Washida et al.
patent: 4294520 (1981-10-01), Inoue et al.
patent: 4326777 (1982-04-01), Kohara et al.
patent: 4416517 (1983-11-01), Beall et al.
patent: 4693564 (1987-09-01), Mori

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