Title:
ALKALINE CELL WITH PERFORMANCE ENHANCING ADDITIVES
Document Type and Number:
WIPO Patent Application WO2005022675
Kind Code:
A3
Abstract:
Alkaline electrochemical cells having extended service life and acceptable gassing and corrosion properties are disclosed. An amphoteric surfactant can be incorporated into the gelled anode mixture of an alkaline electrochemical cell, optionally with an organic phosphate ester surfactant or a sulfonic acid type organic surfactant or both. Zinc particles having a defined distribution of particle sizes can also be incorporated into a zinc anode. The electrolyte included in the anode mixture can have a reduced hydroxide concentration.
Inventors:
NDZEBET ERNEST (US)
ARMACANQUI EDGAR M (US)
DESTEPHEN MARIO (US)
ROSZKOWSKI ANDREW J (US)
BUSHONG WILLIAM C (US)
VU VIET H (US)
ARMACANQUI EDGAR M (US)
DESTEPHEN MARIO (US)
ROSZKOWSKI ANDREW J (US)
BUSHONG WILLIAM C (US)
VU VIET H (US)
Application Number:
PCT/US2004/026221
Publication Date:
June 16, 2005
Filing Date:
August 13, 2004
Export Citation:
Assignee:
ROVCAL INC (US)
NDZEBET ERNEST (US)
ARMACANQUI EDGAR M (US)
DESTEPHEN MARIO (US)
ROSZKOWSKI ANDREW J (US)
BUSHONG WILLIAM C (US)
VU VIET H (US)
NDZEBET ERNEST (US)
ARMACANQUI EDGAR M (US)
DESTEPHEN MARIO (US)
ROSZKOWSKI ANDREW J (US)
BUSHONG WILLIAM C (US)
VU VIET H (US)
International Classes:
H01M4/00; H01M4/24; H01M4/62; H01M12/06; H01M4/02; H01M10/24; H01M10/42; (IPC1-7): H01M4/62; H01M4/00
Domestic Patent References:
| WO2003073530A2 | 2003-09-04 |
Foreign References:
| EP0457354A1 | 1991-11-21 | |||
| US5401590A | 1995-03-28 | |||
| EP0510239A1 | 1992-10-28 | |||
| US5378559A | 1995-01-03 | |||
| US6040088A | 2000-03-21 | |||
| US4777100A | 1988-10-11 | |||
| US4195120A | 1980-03-25 |
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