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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9893347 B1

PDFFull Text
Date of Patent:
Feb. 13, 2018

Filed:

Dec. 05, 2013

Alloy powder for electrode, negative electrode for alkaline storage battery using the same, and alkaline storage battery

Applicant:

Panasonic Corporation, Osaka, JP;

Inventors:

Hideaki Ohyama, Osaka, JP;

Shinichi Sumiyama, Osaka, JP;

Akiko Okabe, Osaka, JP;

Yasushi Nakamura, Osaka, JP;

Kiyoshi Hayashi, Osaka, JP;

Fumio Kato, Osaka, JP;

Assignee:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Colleen Dunn

Assistant Examiner:

Jeremy Jones

Int. Cl.
CPC ...
H01M 4/24 (2006.01); H01M 10/24 (2006.01); C22C 28/00 (2006.01); H01M 4/38 (2006.01); C22C 1/04 (2006.01); H01M 4/42 (2006.01); H01M 4/46 (2006.01); H01M 10/30 (2006.01); H01M 10/32 (2006.01); C22C 19/00 (2006.01); C22C 30/00 (2006.01); H01M 4/02 (2006.01); B22F 9/08 (2006.01); B22F 9/04 (2006.01);
U.S. Cl.
CPC ...
H01M 4/242 (2013.01); C22C 1/0433 (2013.01); C22C 1/0483 (2013.01); C22C 19/007 (2013.01); C22C 28/00 (2013.01); C22C 30/00 (2013.01); H01M 4/244 (2013.01); H01M 4/248 (2013.01); H01M 4/38 (2013.01); H01M 4/383 (2013.01); H01M 4/386 (2013.01); H01M 4/42 (2013.01); H01M 4/46 (2013.01); H01M 10/24 (2013.01); H01M 10/30 (2013.01); H01M 10/32 (2013.01); B22F 9/082 (2013.01); B22F 2009/041 (2013.01); B22F 2998/10 (2013.01); H01M 2004/027 (2013.01);
Abstract

Provided is an alloy powder for an electrode which enables an alkaline storage battery to have both excellent discharge characteristics and excellent life characteristics. The alloy powder includes a hydrogen storage alloy including an element L, Mg, Ni, Al, and an element M. The element L is at least one selected from the group consisting of group 3 elements and group 4 elements of the periodic table (excluding Y). The element Mis at least two selected from the group consisting of Ge, Y, and Sn. A molar proportion x of Mg in a total of the element L and Mg is 0.008≦x≦0.54. A molar proportion y of Ni, a molar proportion α of Al, and a molar proportion β of the element M, per the foregoing total is 1.6≦y≦4, 0.008≦α≦0.32, and 0.01≦β≦0.12, respectively.

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