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:
Jul. 07, 2011
Applicants:
Tomoyoshi Ueki, Toyota, JP;
Harunari Shimamura, Moriguchi, JP;
Yusuke Fukumoto, Moriguchi, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 10/052 (2010.01); H01M 2/34 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1686 (2013.01); H01M 2/1653 (2013.01); H01M 2/1673 (2013.01); H01M 2/348 (2013.01); H01M 10/052 (2013.01);
Abstract
Provided is a very safe secondary battery that can prevent the occurrence of battery abnormalities even when the internal battery temperature increases due to, for example, overcharging. A separatorin this secondary battery has a laminated structure that is provided with at least two porous layersA,B, wherein one of these layers forms a porous electroconductive layerin which an electroconductive materialis dispersed in the porous layer.