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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 8999587 B1

PDFFull Text
Expired
Date of Patent:
Apr. 07, 2015

Filed:

Aug. 29, 2011

Lithium-ion secondary battery, vehicle, electronic device and manufacturing method of lithium-ion secondary battery

Applicants:

Takeshi Matsuda, Tokyo, JP;

Masakazu Sanada, Kyoto, JP;

Kenta Hiramatsu, Kyoto, JP;

Kiyoshi Kanamura, Tokyo, JP;

Inventors:

Takeshi Matsuda, Tokyo, JP;

Masakazu Sanada, Kyoto, JP;

Kenta Hiramatsu, Kyoto, JP;

Kiyoshi Kanamura, Tokyo, JP;

Assignee:

SCREEN Holdings Co., Ltd., , JP;

Attorney:

Ostrolenk Faber LLP

Primary Examiner:

Karie O'Neill Apicella

Int. Cl.
CPC ...
H01M 10/056 (2010.01); H01M 10/0585 (2010.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/485 (2010.01); H01M 10/0565 (2010.01); H01M 10/42 (2006.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 4/0404 (2013.01); H01M 4/0411 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/485 (2013.01); H01M 4/525 (2013.01); H01M 10/0565 (2013.01); H01M 10/425 (2013.01); H01M 2004/025 (2013.01); H01M 2004/027 (2013.01); Y02T 10/7011 (2013.01); Y02E 60/122 (2013.01);
Abstract

A negative-electrode active material layercontains LiTiOas a negative-electrode active material, and a positive-electrode active material layercontains LiCoOas a positive-electrode active material. A solid electrolyte layercontains polyethylene oxide and polystyrene as an electrolyte material. Gradients of surfaces of stripe-shaped pattern elementsforming the negative-electrode active material layerare smaller than 90° when viewed from a surface of the negative-electrode current collector. By such a construction, it is possible to construct a battery having a high capacity in relation to the used amount of the active materials and good charge and discharge characteristics.

Find Patent Forward Citations

Matsuda, Takeshi. (2015). Lithium-ion secondary battery, vehicle, electronic device and manufacturing method of lithium-ion secondary battery (U.S. Patent No. 8999587). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8999587

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

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