Jelly-roll type electrode assembly, lithium secondary...

Details Jelly-roll type electrode assembly, lithium secondary... Jelly-roll type electrode assembly, lithium secondary...

2005-09-02

2008-10-28

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

C429S094000, C429S186000, C429S161000, C429S211000, C029S623100, C029S623400

Reexamination Certificate

active

07442465

ABSTRACT:
A jelly-roll type electrode assembly, a lithium secondary battery having the same, and a method for manufacturing the same are provided. The electrode assembly comprises a deformation prevention core which simplifies the manufacture of a lithium secondary battery and prevents deformation of the electrode assembly. The electrode assembly comprises positive and negative electrode plates and a separator wound around a deformation prevention core. A positive electrode active material is coated on the positive electrode plate and a negative electrode active material is coated on the negative electrode plate. The separator insulates the positive electrode plate from the negative electrode plate. The deformation prevention core is located near the center of the electrode assembly.

REFERENCES:
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Patent Abstracts of Japan, Publication No. 2001-126769, dated May 11, 2001, in the name of Kenji Nakai et al.
Patent Abstracts of Japan, Publication No. 2002-280055, dated Sep. 27, 2002, in the name of Mikio Oguma et al.
Patent Abstracts of Ja, Publication No. 2003-243036, dated Aug. 29, 2003, in the name of Yoshin Yagi et al.

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