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:
Oct. 12, 2010
Filed:
Jan. 12, 2006
Masato Fujikawa, Moriguchi, JP;
Akira Nagasaki, Neyagawa, JP;
Tetsu Hashimoto, Moriguchi, JP;
Kaoru Inoue, Hirakata, JP;
Mikinari Shimada, Yawata, JP;
Masato Fujikawa, Moriguchi, JP;
Akira Nagasaki, Neyagawa, JP;
Tetsu Hashimoto, Moriguchi, JP;
Kaoru Inoue, Hirakata, JP;
Mikinari Shimada, Yawata, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a lithium secondary battery of the present invention, the positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector, the negative electrode includes a negative electrode current collector and a negative electrode active material layer carried on the negative electrode current collector, a heat-resistant layer is formed on the negative electrode, and an insulating tape is attached onto at least a part of the exposed portion of the positive electrode current collector that is opposite to the end of the negative electrode active material layer. Thus, by forming the heat-resistant layer on the negative electrode and attaching the insulating tape onto a part of the exposed portion of the positive electrode current collector, it is possible to efficiently provide a lithium secondary battery exhibiting high safety.