Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Plural cells
Reexamination Certificate
2011-01-18
2011-01-18
Ryan, Patrick (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Plural cells
C429S150000, C429S160000, C429S161000, C429S162000
Reexamination Certificate
active
07871722
ABSTRACT:
Disclosed herein are an electrode assembly including a plurality of unit cells folded by a continuous separation film wherein the unit cells are arranged on the separation film such that electrode taps of the unit cells face each other, the separation film has openings corresponding to the electrode taps of the unit cells, and the electrode assembly is manufactured by folding the unit cells in the longitudinal (lengthwise) direction of the separation film while the unit cells are disposed such that the electrode taps of the unit cells are inserted into the corresponding openings, and an electrochemical cell, such as a secondary battery, including the same. The electrode assembly according to the present invention is a hybrid type electrode assembly solving the problems of the jelly-roll type electrode assembly and the stacking type electrode assembly. Consequently, when external impacts are applied to the electrode assembly, for example, the electrode assembly falls, it is possible to minimize the occurrence of internal short circuits and thus to improve the safety of the electrode assembly. Furthermore, it is possible to perform the process for impregnating (wetting) the electrolyte into the electrodes in a short time during the assembly of the electrochemical cell.
REFERENCES:
patent: 2005/0042516 (2005-02-01), Oh et al.
patent: 2006/0051668 (2006-03-01), Chung et al.
patent: 1020010082058 (2001-08-01), None
patent: 1020010082059 (2001-08-01), None
patent: 1020010082060 (2001-08-01), None
Choi Jeong Hee
Kim Min Su
Ryu Ji Heon
Shin Youngjoon
Yang Seung-Jin
Cantor & Colburn LLP
LG Chem Ltd.
Ryan Patrick
Siddiquee Muhammad
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