Title:
ALKALINE DRY CELL
Document Type and Number:
WIPO Patent Application WO/2007/020828
Kind Code:
A1
Abstract:
Disclosed is an alkaline dry cell containing nickel oxyhydroxide and manganese
dioxide as positive electrode active materials. In this alkaline dry cell, a
solid solution of nickel oxyhydroxide containing at least manganese and cobalt
is used, and the manganese content is set at from 5.2 × 10-2 to 7.5×
10-2 mole and the cobalt content is set at from 0.5 × 10-2
to 2.0 × 10-2 mole per 1 mole of nickel oxyhydroxide for suppressing
polarization during high-load pulse discharge while maintaining excellent
high-load discharge characteristics. Consequently, operational stability
of digital devices can be improved, while obtaining high reliability in leakage
resistance and safety under short circuit conditions.
Inventors:
NOYA SHIGETO
OKADA TADAYA
ABE ISAO
SHIRAOKA MINORU
OKADA TADAYA
ABE ISAO
SHIRAOKA MINORU
Application Number:
PCT/JP2006/315586
Publication Date:
February 22, 2007
Filing Date:
August 07, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
SUMITOMO METAL MINING CO (JP)
NOYA SHIGETO
OKADA TADAYA
ABE ISAO
SHIRAOKA MINORU
SUMITOMO METAL MINING CO (JP)
NOYA SHIGETO
OKADA TADAYA
ABE ISAO
SHIRAOKA MINORU
International Classes:
H01M4/06; H01M4/52; H01M6/06
Domestic Patent References:
| WO2005045958A1 | 2005-05-19 |
Foreign References:
| JP2003234101A | 2003-08-22 | |||
| JP2005071991A | 2005-03-17 |
Attorney, Agent or Firm:
ISHII, Kazuo et al. (3-6 Kitahama 2-chome, Chuo-k, Osaka-shi Osaka, JP)
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