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Title: 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:
 [1];  [2]
  1. Sudbury, MA
  2. 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):
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
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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}
}

Patent:

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Works referenced in this record:

Lithium and sodium insertion in ternary chromium oxides
journal, September 1988


Chromium Oxides as Cathodes for Secondary High Energy Density Lithium Batteries
journal, July 1977