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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 9899674 B1

PDFFull Text
Date of Patent:
Feb. 20, 2018

Filed:

Feb. 27, 2014

Positive electrode active substance, positive electrode material, positive electrode, and non-aqueous electrolyte secondary battery

Applicant:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Inventors:

Tamaki Hirai, Yokohama, JP;

Manabu Kaseda, Yokohama, JP;

Osamu Shimamura, Yokohama, JP;

Kenji Ohara, Yokohama, JP;

Kousuke Hagiyama, Yokohama, JP;

Fumihiro Kawamura, Yokosuka, JP;

Masanori Aoyagi, Yokohama, JP;

Assignee:

NISSAN MOTOR CO., LTD., Yokohama-shi, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Cynthia K Walls

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 2/16 (2006.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); C01G 53/00 (2006.01); H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/1391 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 53/006 (2013.01); C01G 53/50 (2013.01); H01M 2/16 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); C01P 2002/50 (2013.01); C01P 2002/52 (2013.01); C01P 2004/10 (2013.01); C01P 2004/20 (2013.01); C01P 2004/32 (2013.01); C01P 2004/38 (2013.01); C01P 2004/39 (2013.01); C01P 2004/61 (2013.01); C01P 2004/84 (2013.01); C01P 2006/10 (2013.01); C01P 2006/12 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); Y02T 10/7011 (2013.01);
Abstract

[Object] Provided is a means which is capable, with respect to a non-aqueous electrolyte secondary battery, of suppressing a decrease in capacity when the battery is used for a long period of time, and improving cycle characteristics. [Solving Means] Provided is a positive electrode active substance for a non-aqueous electrolyte secondary battery, the positive electrode active substance being a lithium-nickel-manganese-cobalt composite oxide and having true density of 4.40 to 4.80 g/cm.

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