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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 10490815 B1

PDFFull Text
Date of Patent:
Nov. 26, 2019

Filed:

Aug. 10, 2017

Nickel-cobalt-manganese complex hydroxide particles and method for producing same, positive electrode active material for nonaqueous electrolyte secondary battery and method for producing same, and nonaqueous electrolyte second battery

Applicants:

Sumitomo Metal Mining Co., Ltd., Minato-ku, Tokyo, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;

Inventors:

Hiroyuki Toya, Niihama, JP;

Shin Imaizumi, Fukushima, JP;

Kensaku Mori, Niihama, JP;

Atsushi Fukui, Niihama, JP;

Kenji Ikeuchi, Tokyo, JP;

Kazuomi Ryoshi, Niihama, JP;

Toshiyuki Osako, Yokohama, JP;

Hiroki Nagai, Toyota, JP;

Assignees:

SUMITOMO METAL MINING CO., LTD., Tokyo, JP;

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;

Attorney:

Kratz, Quintos & Hanson, LLP

Primary Examiner:

Daniel S Gatewood

Int. Cl.
CPC ...
H01M 4/505 (2010.01); H01M 10/052 (2010.01); H01M 4/525 (2010.01); H01M 4/131 (2010.01); C01G 53/00 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 53/006 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2004/52 (2013.01); C01P 2004/61 (2013.01); C01P 2006/40 (2013.01); Y02T 10/7011 (2013.01);
Abstract

An object of the present invention is to provide nickel cobalt manganese composite hydroxide particles having a small particle diameter and a uniform particle size distribution, and a method for producing the same. [Solution] A method for producing a nickel cobalt manganese composite hydroxide by a crystallization reaction is provided. The method includes: a nucleation step of performing nucleation by controlling a pH of an aqueous solution for nucleation including metal compounds containing nickel, cobalt and manganese, and an ammonium ion donor to 12.0 to 14.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard; and a particle growth step of growing nuclei by controlling a pH of an aqueous solution for particle growth containing nuclei formed in the nucleation step to 10.5 to 12.0 in terms of the pH as measured at a liquid temperature of 25° C. as a standard.

Find Patent Forward Citations

Toya, Hiroyuki. (2019). Nickel-cobalt-manganese complex hydroxide particles and method for producing same, positive electrode active material for nonaqueous electrolyte secondary battery and method for producing same, and nonaqueous electrolyte second battery (U.S. Patent No. 10490815). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10490815

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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