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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 11978896 B1

PDFFull Text
Date of Patent:
May. 07, 2024

Filed:

Aug. 01, 2019

Negative electrode active material for nonaqueous electrolyte secondary batteries, negative electrode for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Toshiyuki Nakamori, Tokushima, JP;

Yasunobu Iwami, Osaka, JP;

Mai Yokoi, Tokushima, JP;

Yohei Uchiyama, Hyogo, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

WHDA, LLP

Primary Examiner:

Maria Laios

Assistant Examiner:

Jordan E Berresford

Int. Cl.
CPC ...
H01M 4/48 (2010.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/48 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0017 (2013.01);
Abstract

A negative electrode active material according to one embodiment of the present disclosure comprises: a composite oxide phase that contains Li, Si, Al and B; and Si particles that are dispersed in the composite oxide phase. Relative to the total number of moles of elements (excluding O) contained in the composite, oxide phase, the content of Li is from 5% by mole to 20% by mole (inclusive), the content of Si is from 50% by mole to 70% by mole (inclusive), the content of Al is from 12% by mole to 25% by mole (inclusive), and the content of B is from 12% by mole to 25% by mole (inclusive).

Find Patent Forward Citations

Nakamori, Toshiyuki. (2024). Negative electrode active material for nonaqueous electrolyte secondary batteries, negative electrode for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery (U.S. Patent No. 11978896). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11978896

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

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