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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 12051804 B1

PDFFull Text
Date of Patent:
Jul. 30, 2024

Filed:

Sep. 14, 2020

Positive electrode active material particles for non-aqueous electrolyte secondary batteries and method for producing same, and non-aqueous electrolyte secondary battery

Applicant:

Basf Toda Battery Materials Llc, Tokyo, JP;

Inventors:

Junji Kashiwagi, Sanyoonoda, JP;

Daisuke Nishikawa, Sanyoonoda, JP;

Satoshi Nakamura, Sanyoonoda, JP;

Kazutoshi Ishizaki, Sanyoonoda, JP;

Kazumichi Koga, Sanyoonoda, JP;

Hiroyoshi Noguchi, Sanyoonoda, JP;

Takahiko Sugihara, Sanyoonoda, JP;

Kazutoshi Matsumoto, Matsudo, JP;

Assignee:

BASF TODA BATTERY MATERIALS LLC, Tokyo, JP;

Attorney:

Armstrong Teasdale LLP

Primary Examiner:

Muhammad S Siddiquee

Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/04 (2006.01); H01M 4/505 (2010.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 4/0471 (2013.01); H01M 4/505 (2013.01); H01M 10/0427 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract

Excellent thermal stability in addition to excellent cycle property with maintaining a sufficient battery capacity is shown by positive electrode active material particles having a layered rock salt structure, represented by the compositional formula: (LiX)(NiCoXZ)O, in the compositional formula: X is a divalent metallic element capable of substituting for Li-site; Z is a metallic element containing at least Al and/or Mn, other than X; 0.93≤γ≤1.15; 0.82≤a<1.00; 0≤b≤0.12; 0.001≤c+e≤0.040; 0≤d≤0.10; and a+b+c+d=1.

Find Patent Forward Citations

Kashiwagi, Junji. (2024). Positive electrode active material particles for non-aqueous electrolyte secondary batteries and method for producing same, and non-aqueous electrolyte secondary battery (U.S. Patent No. 12051804). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12051804

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