BATTERY CAN AND BATTERY USING THE SAME - MATSUSHITA ELECTRIC IND CO LTD

Title:

BATTERY CAN AND BATTERY USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2008/018532

Kind Code:

A1

Abstract:

An Fe-Ni diffusion layer (3) is formed on the surface of a steel sheet (2) having an Fe content of not less than 98% by weight, while regulating the Fe/Ni ratio of the Fe-Ni diffusion layer (3) within the range of 0.1-2.5; and the resulting is formed into a battery can (1) having predetermined dimensions so that the Fe-Ni diffusion layer (3) serves as the inner surface of the can. When a battery is produced by using this battery can (1), the battery has excellent liquid leakage resistance by suppressing overdischarge erosion even when only a small amount of Ni is used therein.

Inventors:

MORI KATSUHIKO
SAKASHITA FUMIHARU
SANO HIDEKI

Application Number:

PCT/JP2007/065591

Publication Date:

February 14, 2008

Filing Date:

August 09, 2007

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
MORI KATSUHIKO
SAKASHITA FUMIHARU
SANO HIDEKI

International Classes:

H01M6/06; H01M10/05; H01M10/0566; H01M10/058; H01M10/30; H01M50/128; H01M50/133

Foreign References:

JP2005149735A	2005-06-09
JP2005085480A	2005-03-31
JP2003277981A	2003-10-02
JP2003249232A	2003-09-05
JP2001345080A	2001-12-14
JP2001345080A	2001-12-14
JP2005078894A	2005-03-24

Other References: