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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 9991505 B1

PDFFull Text
Date of Patent:
Jun. 05, 2018

Filed:

Feb. 14, 2013

Positive-electrode material for nonaqueous-electrolyte secondary battery, method for manufacturing the same, and nonaqueous-electrolyte secondary battery using said positive-electrode material

Applicant:

Sumitomo Metal Mining Co., Ltd., Tokyo, JP;

Inventors:

Rei Kokado, Niihama, JP;

Kensaku Mori, Niihama, JP;

Masanori Takagi, Niihama, JP;

Tetsutaro Hayashi, Niihama, JP;

Assignee:

Sumitomo Metal Mining Co., Ltd., Tokyo, JP;

Attorneys:

Gerald E. Hespos

Michael J. Porco

Matthew T. Hespos

Primary Examiner:

Peter F Godenschwager

Assistant Examiner:

Andrew J Oyer

Int. Cl.
CPC ...
H01M 4/1391 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/485 (2010.01); B29B 7/00 (2006.01); B29C 43/00 (2006.01); B29C 43/02 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); C01G 53/00 (2006.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01); H01M 4/131 (2010.01); H01M 10/052 (2010.01); B29K 105/16 (2006.01); B29K 509/00 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
H01M 4/1391 (2013.01); B29B 7/005 (2013.01); B29C 43/003 (2013.01); B29C 43/02 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/043 (2013.01); H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/485 (2013.01); H01M 4/525 (2013.01); H01M 4/622 (2013.01); H01M 4/624 (2013.01); H01M 10/0525 (2013.01); B29K 2105/16 (2013.01); B29K 2509/00 (2013.01); B29K 2995/0005 (2013.01); B29L 2031/3468 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 10/052 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01);
Abstract

Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LiNiCoMO(wherein 0.10≤x≤0.35, 0≤y≤0.35, 0.97≤z≤1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.

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