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:
Aug. 21, 2012
Filed:
Mar. 20, 2009
Applicants:
Katsuo Naoi, Tokyo, JP;
Kenji Nishizawa, Tokyo, JP;
Mitsuo Kougo, Tokyo, JP;
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/14 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrochemical device having an electrode matrix including a multilayer structure laminating positive and negative electrodes with a separator interposed therebetween; wherein at least one of the positive and negative electrodes has a resistance control layer at least at an edge part exposed when the separator thermally shrinks on a surface on the separator side; and wherein the resistance control layer has a resistance value as a total resistance value of the electrode matrix falling in such a range that an estimated internal short circuit current between the positive and negative electrodes is equivalent to 0.09 C to 1 C.