Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Electrochromic material and electro-optical device using same

Patent ·
OSTI ID:7273988

An oxidatively coloring electrochromic layer of composition M[sub y]CrO[sub 2+x] (0.33[le]y[le]2.0 and x[le]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. 12 figs.

Research Organization:
EIC Laboratories Inc
DOE Contract Number:
AC03-87SF16733
Assignee:
EIC Laboratories, Inc., Norwood, MA (United States)
Patent Number(s):
US 5080471; A
Application Number:
PPN: US 7-506340
OSTI ID:
7273988
Country of Publication:
United States
Language:
English