Electrochromic material and electro-optical device using same
Abstract
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.
- Inventors:
-
- Sudbury, MA
- Newton, MA
- Issue Date:
- Research Org.:
- EIC Laboratories Inc
- OSTI Identifier:
- 868126
- Patent Number(s):
- 5080471
- Assignee:
- EIC Laboratories, Inc. (Norwood, MA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
- DOE Contract Number:
- AC03-87SF16733
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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; /359/
Citation Formats
Cogan, Stuart F, and Rauh, R David. Electrochromic material and electro-optical device using same. United States: N. p., 1992.
Web.
Cogan, Stuart F, & Rauh, R David. Electrochromic material and electro-optical device using same. United States.
Cogan, Stuart F, and Rauh, R David. Wed .
"Electrochromic material and electro-optical device using same". United States. https://www.osti.gov/servlets/purl/868126.
@article{osti_868126,
title = {Electrochromic material and electro-optical device using same},
author = {Cogan, Stuart F and Rauh, R David},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}
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Works referenced in this record:
Lithium and sodium insertion in ternary chromium oxides
journal, September 1988
- Koksbang, R.; Yde-Andersen, S.; West, K.
- Solid State Ionics, Vol. 28-30
Chromium Oxides as Cathodes for Secondary High Energy Density Lithium Batteries
journal, July 1977
- Besenhard, J. O.; Schöllhorn, R.
- Journal of The Electrochemical Society, Vol. 124, Issue 7