Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate
2005-03-30
2009-06-23
Kalafut, Stephen J. (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
C429S181000, C029S623400
Reexamination Certificate
active
07550229
ABSTRACT:
A secondary battery comprises a bare cell including an electrode assembly composed of positive and negative electrodes and a separator, a can acting as a container for containing the electrode assembly and an electrolyte, and a cap assembly having a cap plate for covering the open upper end of the can and a lead plate coupled to a part of the cap plate, wherein an electrolyte injection hole is positioned on a side of the cap plate. The lead plate has a bottom portion which covers the electrolyte injection hole and at least a part of which is coupled to a surface of the cap plate. Additionally, a part of the lead plate, which corresponds to the electrolyte injection hole of the bottom portion, is removed to form a hole so that a cap which seals the electrolyte injection hole is exposed.
REFERENCES:
patent: 5474859 (1995-12-01), Takeuchi et al.
patent: 7241529 (2007-07-01), Cho
patent: 2005/0221176 (2005-10-01), Kim
patent: 2006/0003192 (2006-01-01), Lim
patent: 2006/0024573 (2006-02-01), Yim et al.
patent: 2007/0190411 (2007-08-01), Uh
patent: 11-111246 (1999-04-01), None
Christie Parker & Hale LLP
Kalafut Stephen J.
Samsung SDI & Co., Ltd.
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