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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 9991563 B1

PDFFull Text
Date of Patent:
Jun. 05, 2018

Filed:

May. 26, 2016

Energy storage device and energy storage apparatus

Applicant:

Gs Yuasa International Ltd., Kyoto-shi, Kyoto, JP;

Inventors:

Tomonori Kako, Kyoto, JP;

Taro Yamafuku, Kyoto, JP;

Akihiko Miyazaki, Kyoto, JP;

Assignee:

GS Yuasa International Ltd., Kyoto, JP;

Attorney:

Rankin, Hill & Clark LLP

Primary Examiner:

Alex Usyatinsky

Int. Cl.
CPC ...
H01M 10/0587 (2010.01); H01G 11/24 (2013.01); H01G 11/32 (2013.01); H01G 11/38 (2013.01); H01M 4/133 (2010.01); H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/647 (2014.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0587 (2013.01); H01G 11/24 (2013.01); H01G 11/32 (2013.01); H01G 11/38 (2013.01); H01M 4/133 (2013.01); H01M 4/364 (2013.01); H01M 4/587 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 10/647 (2015.04); H01M 2004/027 (2013.01); Y02E 60/13 (2013.01);
Abstract

An energy storage device includes a positive electrode and a negative electrode. The negative electrode includes graphite and non-graphitizable carbon, and a D50 particle size of the graphite at which a cumulative volume in a particle size distribution of a particle size reaches 50% is 2 μm or more. A ratio of a mass of the non-graphitizable carbon to a total amount of a mass of the graphite and a mass of the non-graphitizable carbon is 5% by mass or more and 45% by mass or less and a ratio of the D50 particle size of the graphite to a D50 particle size of the non-graphitizable carbon is 1.02 or less.

Find Patent Forward Citations

Kako, Tomonori. (2018). Energy storage device and energy storage apparatus (U.S. Patent No. 9991563). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9991563

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

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