Electrochemical cell having a polymer electrolyte

Details Electrochemical cell having a polymer electrolyte Electrochemical cell having a polymer electrolyte

1996-05-02

1997-11-18

Diamond, Alan

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429 33, 252 622, 361525, H01M 618, H01G 9025

Patent

active

056886144

ABSTRACT:
An electrochemical cell is provided with first and second electrodes, and a solid polymer electrolyte disposed therebetween. The electrodes may either be of the same or different materials and may be fabricated from ruthenium, iridium, cobalt, tungsten, vanadium, iron, molybdenum, halfnium, nickel, silver, zinc, and combinations thereof. The solid polymer electrolyte is in intimate contact with both the anode and the cathode, and is made from a polymeric support structure having dispersed therein an electrolyte active species. The polymer support structure is preferably a multi-layered support structure in which at least a first layer is fabricated of a polybenzimidazole, and at least a second layer is fabricated of, for example, poly vinyl alcohol.

REFERENCES:
patent: 4269913 (1981-05-01), Lim et al.
patent: 4766522 (1988-08-01), McHardy et al.
patent: 5437942 (1995-08-01), Murata et al.
patent: 5521023 (1996-05-01), Kejha et al.
Polybenzimidazoles, vol. 11, pp. 572-601, Encyclopedia of Polymer Science & Engineering, Wiley Interscience, ISBM 0-471-80944-6 (Date Unknown).
Publication entitled History and Development of Polybenzimidazole, Powers, et al, PBI Products Division, Hoechst Celanese; Symposium on the Istory of High Performance Polymers, ACS, Apr., 1986.

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