Lithium secondary battery and method for producing the same

Details Lithium secondary battery and method for producing the same Lithium secondary battery and method for producing the same

2006-01-12

2010-10-12

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

C429S164000

Reexamination Certificate

active

07811696

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.

REFERENCES:
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patent: 6387564 (2002-05-01), Yamashita et al.
patent: 2004/0202928 (2004-10-01), Miyamoto et al.
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patent: 2004-063343 (2004-02-01), None
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patent: 2004-247064 (2004-09-01), None
Chinese Office Action issued in Chinese Patent Application No. CN 2006100048167, mailed Aug. 31, 2007.

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