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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 9960423 B1

PDFFull Text
Date of Patent:
May. 01, 2018

Filed:

Nov. 21, 2014

Spinel-type lithium metal composite oxide

Applicant:

Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;

Inventors:

Hitohiko Ide, Takehara, JP;

Daisuke Washida, Takehara, JP;

Yuji Hoshi, Takehara, JP;

Yoshimi Hata, Takehara, JP;

Assignee:

Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;

Attorney:

The Webb Law Firm

Primary Examiner:

Mark Kopec

Int. Cl.
CPC ...
H01B 1/08 (2006.01); H01M 4/00 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); C01G 45/12 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); C30B 29/22 (2006.01); H01M 2/16 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 10/0585 (2010.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/02 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 45/1242 (2013.01); C01G 51/54 (2013.01); C01G 53/54 (2013.01); C30B 29/22 (2013.01); H01B 1/08 (2013.01); H01M 2/162 (2013.01); H01M 2/1653 (2013.01); H01M 4/382 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 10/0585 (2013.01); C01P 2002/32 (2013.01); C01P 2002/60 (2013.01); C01P 2002/76 (2013.01); C01P 2006/40 (2013.01); H01M 4/0404 (2013.01); H01M 4/0471 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0037 (2013.01);
Abstract

Provided is a spinel-type lithium metal composite oxide that makes it possible to achieve excellent high-temperature storage characteristics when used as a positive electrode active material of a lithium battery. The spinel-type (Fd-3m) lithium metal composite oxide is characterized by the oxygen occupancy (OCC) thereof as determined by the Rietveld method being 0.965-1.000, the lattice strain thereof as determined by the Williamson-Hall method being 0.015-0.090, and the ratio (Na/Mn) of the molar content of Na to the molar content of Mn satisfying 0.00<Na/Mn<1.00×10.

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