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Title: Electrochemical energy storage devices comprising self-compensating polymers

The disclosed technology relates generally to devices comprising conductive polymers and more particularly to electrochemical devices comprising self-compensating conductive polymers. In one aspect, electrochemical energy storage device comprises a negative electrode comprising an active material including a redox-active polymer. The device additionally comprises a positive electrode comprising an active material including a redox-active polymer. The device further comprises an electrolyte material interposed between the negative electrode and positive electrode and configured to conduct mobile counterions therethrough between the negative electrode and positive electrode. At least one of the negative electrode redox-active polymer and the positive electrode redox-active polymer comprises a zwitterionic polymer unit configured to reversibly switch between a zwitterionic state in which the zwitterionic polymer unit has first and second charge centers having opposite charge states that compensate each other, and a non-zwitterionic state in which the zwitterionic polymer unit has one of the first and second charge centers whose charge state is compensated by mobile counterions.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1418804
Assignee:
ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY (Scottsdale, AZ) ARPA-E
Patent Number(s):
9,882,215
Application Number:
14/710,509
Contract Number:
AR0000459
Resource Relation:
Patent File Date: 2015 May 12
Research Org:
Arizona Board of Regents on behalf of Arizona State University, Scottsdale, AZ (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Works referenced in this record:

Redox-Active Polypyrrole: Toward Polymer-Based Batteries
journal, July 2006
  • Song, H.-K.; Palmore, G. T. R.
  • Advanced Materials, Vol. 18, Issue 13, p. 1764-1768
  • DOI: 10.1002/adma.200600375