Electrochromic material and electro-optical device using same

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868126

Cogan, Stuart F ^[1]; Rauh, R David ^[2]

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1. Sudbury, MA
2. Newton, MA

An oxidatively coloring electrochromic layer of composition M.sub.y CrO.sub.2+x (0.33.ltoreq.y.ltoreq.2.0 and x.ltoreq.2) where M=Li, Na or K with improved transmittance modulation, improved thermal and environmental stability, and improved resistance to degradation in organic liquid and polymeric electrolytes. The M.sub.y CrO.sub.2+x provides complementary optical modulation to cathodically coloring materials in thin-film electrochromic glazings and electrochromic devices employing polymeric Li.sup.+ ion conductors.

• Research Organization: EIC Laboratories Inc
• DOE Contract Number: AC03-87SF16733
• Assignee: EIC Laboratories, Inc. (Norwood, MA)
• Patent Number(s): US 5080471
• OSTI ID: 868126
• Country of Publication: United States
• Language: English

Related Subjects

electrochromic
material
electro-optical
device
oxidatively
coloring
layer
composition
33
ltoreq
na
improved
transmittance
modulation
thermal
environmental
stability
resistance
degradation
organic
liquid
polymeric
electrolytes
provides
complementary
optical
cathodically
materials
thin-film
glazings
devices
employing
conductors
improved thermal
organic liquid
optical device
electrochromic material
electrochromic device
improved resistance
electrochromic devices
electrochromic layer
electro-optical device
devices employing
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