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:
Dec. 25, 2018
Filed:
Oct. 27, 2017
Applicant:
Sanyo Electric Co., Ltd., Osaka, JP;
Inventors:
Keisuke Shimizu, Osaka, JP;
Masato Fujikawa, Osaka, JP;
Tomohiko Yokoyama, Osaka, JP;
Kyosuke Miyata, Osaka, JP;
Koki Inoue, Osaka, JP;
Assignee:
SANYO ELECTRIC CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/12 (2006.01); H01M 2/04 (2006.01); H01M 2/16 (2006.01); H01M 2/02 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1241 (2013.01); H01M 2/0408 (2013.01); H01M 2/0478 (2013.01); H01M 2/1673 (2013.01); H01M 2/022 (2013.01); H01M 2/046 (2013.01); H01M 2/0413 (2013.01); H01M 2/127 (2013.01); H01M 2/1229 (2013.01); H01M 2/1264 (2013.01); H01M 2/1282 (2013.01); H01M 2/1294 (2013.01); H01M 2002/0297 (2013.01); H01M 2200/10 (2013.01); H01M 2200/20 (2013.01);
Abstract
The battery is sealed by a sealing member including a safety valve for exhausting the gas generated in the battery to the outside of the battery when the pressure in the battery is increased. A part of the sealing member is formed of a member having a melting point lower than that of high-temperature gas generated in the abnormal time and having a ratio of an area of an opening of the battery case to an area of a gas exhaust hole is 3.0×10or more and 9.1×10or less.