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.:
Date of Patent:
May. 23, 2017
Filed:
Mar. 27, 2013
Applicant:
Tdk Corporation, Tokyo, JP;
Inventor:
Hirokazu Ohnuma, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/134 (2010.01); H01M 10/0564 (2010.01); H01M 10/0525 (2010.01); H01M 4/04 (2006.01); H01M 4/1395 (2010.01); H01M 10/0569 (2010.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); H01M 4/0471 (2013.01); H01M 4/1395 (2013.01); H01M 10/0525 (2013.01); H01M 10/0564 (2013.01); H01M 10/0569 (2013.01); Y02T 10/7011 (2013.01);
Abstract
The negative electrode is formed from silicon, an amount of heat generation in a negative electrode, which is measured by a differential scanning calorimeter within a range of 210 to 380° C. during full charge, is 850 J/g or less, and a cyclic carbonate including ethylene carbonate and a chain carbonate which has a chemical formula expressed by R—O—CO—OR, and in which Rand Rrepresent an alkyl group having a carbon number of 2 or more are used for an electrolytic solution.