Chemistry: electrical current producing apparatus – product – and – Plural concentric or single coiled electrode
Reexamination Certificate
2011-01-04
2011-01-04
Kalafut, Stephen J. (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Plural concentric or single coiled electrode
C429S130000, C429S161000, C429S211000, C029S623400
Reexamination Certificate
active
07862925
ABSTRACT:
A secondary battery having an increased winding area of the electrode assembly due to an absent positive electrode terminal. An electrode plate of the electrode assembly is directly welded to the can for electrical connection and to prevent the electrode assembly from floating inside the can. The secondary battery includes a hexahedronal can having an opening formed on a side and an electrode assembly contained in the can. The electrode assembly has a first electrode plate, a separator, and a second electrode plate laminated and wound together. The first electrode plate is connected to the inner surface of the can and the second electrode plate is connected to an electrode tab extending a predetermined distance to the exterior. A cap assembly has a cap plate coupled to the opening of the can to which the electrode is welded and an electrode terminal is coupled to the electrode terminal.
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Korean Patent Abstracts for Publication No. 10-2004-0058917 A; dated Jul. 5, 2004 in the name of Gyeong Bu Do et al.
Christie Parker & Hale LLP
Kalafut Stephen J.
Samsung SDI & Co., Ltd.
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