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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 10784498 B1

PDFFull Text
Date of Patent:
Sep. 22, 2020

Filed:

May. 18, 2015

Positive electrode, battery, battery pack, electronic device, electric vehicle, electricity storage device, and electric power system

Applicant:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Inventors:

Kazuaki Endoh, Kanagawa, JP;

Kazunari Motohashi, Kanagawa, JP;

Naoki Hayashi, Kanagawa, JP;

Assignee:

MURATA MANUFACTURING CO., LTD., Kyoto, JP;

Attorney:

Chip Law Group

Primary Examiner:

Behrang Badii

Assistant Examiner:

Daniel L Greene

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/36 (2006.01); B60L 50/64 (2019.01); B60W 20/14 (2016.01); B60K 6/46 (2007.10); B60L 7/10 (2006.01); B60W 30/18 (2012.01); H01M 2/16 (2006.01); H01M 4/134 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/0563 (2010.01); H01M 10/0569 (2010.01); H01M 10/42 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); B60K 6/46 (2013.01); B60L 7/10 (2013.01); B60L 50/64 (2019.02); B60W 20/14 (2016.01); B60W 30/18127 (2013.01); H01M 2/1653 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 10/0563 (2013.01); H01M 10/0569 (2013.01); H01M 10/425 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); H01M 2300/002 (2013.01); H01M 2300/004 (2013.01); H01M 2300/0034 (2013.01); Y02E 60/122 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7011 (2013.01); Y10S 903/903 (2013.01);
Abstract

A positive electrode contains a first active material and a second active material. The first active material and the second active material each contain a lithium composite oxide containing at least manganese (Mn), nickel (Ni), and cobalt (Co) as transition metals. The first active material has a particulate shape. An average porosity V1 in a particle of the first active material satisfies 10[%]≤V1≤30[%]. An average particle diameter D1 of the first active material satisfies 6 [μm]≤D1≤20 [μm]. The second active material has a particulate shape. An average porosity V2 in a particle of the second active material satisfies 0[%]≤V2≤10[%]. An average particle diameter D2 of the second active material satisfies 1 [μm]≤D2≤6 [μm].

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