Title:
ALKALINE ALUMINUM-AIR BATTERY
Document Type and Number:
WIPO Patent Application WO2002086984
Kind Code:
A3
Abstract:
An improved aluminum-air diffusion cathode battery having an aluminum or aluminum/alloy anode; an air diffusion cathode; an aqueous electrolyte containing metal cations selected from the group consisting of alkali metal cations; the improvement wherein said electrolyte comprises 15-25 % W/W sodium hydroxide and an organic dehydrative additive selected from the group consisting of: 1-15 % w/w of a monosaccharide; 1-15 % w/w of starch; 0.5-5 % w/w of polyacrylamide; 1-10 % w/w C1-C4 alcohols; and mixtures thereof. The battery provides enhanced power activity output over extended periods of time.
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Inventors:
IAROCHENKO ALEXANDER M
KULAKOV EVGENY B
KULAKOV EVGENY B
Application Number:
PCT/CA2002/000492
Publication Date:
May 22, 2003
Filing Date:
April 10, 2002
Export Citation:
Assignee:
EONTECH GROUP INC (CA)
International Classes:
H01M12/02; H01M12/06; H01M6/04; (IPC1-7): H01M12/06; H01M12/02
Domestic Patent References:
| WO2001033658A2 | 2001-05-10 | |||
| WO2001033659A1 | 2001-05-10 | |||
| WO1990004268A1 | 1990-04-19 |
Foreign References:
| EP0354752A2 | 1990-02-14 | |||
| EP0391443A2 | 1990-10-10 | |||
| DE2819117A1 | 1979-10-31 |
Other References:
DATABASE WPI Section Ch Week 199827, Derwent World Patents Index; Class L03, AN 1998-310405, XP002216014
DATABASE WPI Section Ch Week 199826, Derwent World Patents Index; Class L03, AN 1998-296155, XP002216015
MUKHERJEE A ET AL: "Complex behaviour of aluminium dissolution in alkaline aqueous 2-propanol solution", JOURNAL OF POWER SOURCES, ELSEVIER SEQUOIA S.A. LAUSANNE, CH, vol. 58, no. 2, 1 February 1996 (1996-02-01), pages 183 - 187, XP004069930, ISSN: 0378-7753
SHKOL'NIKOV E. I. ET AL: "Mass transfer in unsealed batteries with zinc anodes and electrolytes thickened with modified starch", CHEMICAL ABSTRACTS + INDEXES, AMERICAN CHEMICAL SOCIETY. COLUMBUS, US, vol. 114, no. 65761, - 25 February 1991 (1991-02-25), XP000283286, ISSN: 0009-2258
BOCKSTIE L: "Control of Al Corrosion in Caustic Solutions", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, ELECTROCHEMICAL SOCIETY. MANCHESTER, NEW HAMPSHIRE, US, vol. 110, no. 4, April 1963 (1963-04-01), pages 267 - 271, XP002172263, ISSN: 0013-4651
DATABASE WPI Section Ch Week 198025, Derwent World Patents Index; Class A85, AN 1980-44192C, XP002216016
DATABASE WPI Section Ch Week 199826, Derwent World Patents Index; Class L03, AN 1998-296155, XP002216015
MUKHERJEE A ET AL: "Complex behaviour of aluminium dissolution in alkaline aqueous 2-propanol solution", JOURNAL OF POWER SOURCES, ELSEVIER SEQUOIA S.A. LAUSANNE, CH, vol. 58, no. 2, 1 February 1996 (1996-02-01), pages 183 - 187, XP004069930, ISSN: 0378-7753
SHKOL'NIKOV E. I. ET AL: "Mass transfer in unsealed batteries with zinc anodes and electrolytes thickened with modified starch", CHEMICAL ABSTRACTS + INDEXES, AMERICAN CHEMICAL SOCIETY. COLUMBUS, US, vol. 114, no. 65761, - 25 February 1991 (1991-02-25), XP000283286, ISSN: 0009-2258
BOCKSTIE L: "Control of Al Corrosion in Caustic Solutions", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, ELECTROCHEMICAL SOCIETY. MANCHESTER, NEW HAMPSHIRE, US, vol. 110, no. 4, April 1963 (1963-04-01), pages 267 - 271, XP002172263, ISSN: 0013-4651
DATABASE WPI Section Ch Week 198025, Derwent World Patents Index; Class A85, AN 1980-44192C, XP002216016
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