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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 9123938 B1

PDFFull Text
Expired
Date of Patent:
Sep. 01, 2015

Filed:

Aug. 26, 2010

Nonaqueous-electrolyte battery

Applicants:

Hideki Sasaki, Mito, JP;

Toru Kojima, Fukaya, JP;

Inventors:

Hideki Sasaki, Mito, JP;

Toru Kojima, Fukaya, JP;

Assignee:

Hitachi Automotive Systems, Ltd., Tokyo, JP;

Attorney:

Volpe and Koenig, P.C.

Primary Examiner:

Patrick Ryan

Assistant Examiner:

Alex Usyatinsky

Int. Cl.
CPC ...
H01M 4/133 (2010.01); C01B 31/04 (2006.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01); H01M 4/525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/133 (2013.01); C01B 31/04 (2013.01); H01M 4/587 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

The purpose of the present invention is to provide a nonaqueous-electrolyte battery that exhibits high charge/discharge performance, i.e. high input/output performance, over a long period of time. This nonaqueous-electrolyte battery, in which a nonaqueous electrolyte and a group of electricity-generation elements that each have a positive electrode, a negative electrode, and a separator that isolates said positive electrode and negative electrode are sealed inside a battery case, is characterized in that the negative electrodes contain graphite having an edge/surface ratio (fe), as defined by the following equation, of 0.03-0.1. fe=(2B/La+T/d)/(2B/d+T/d). In this equation, B represents the mean grain diameter of the graphite, T represents the grain thickness, La represents the a-axis crystallite size, drepresents the spacing between (002) planes, and drepresents the spacing between (100) planes.

Find Patent Forward Citations

Sasaki, Hideki. (2015). Nonaqueous-electrolyte battery (U.S. Patent No. 9123938). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9123938

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

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