Chemistry: electrical current producing apparatus – product – and – Having specified venting – feeding or circulation structure – Venting structure
Reexamination Certificate
2009-01-14
2010-12-28
Yuan, Dah-Wei D (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Having specified venting, feeding or circulation structure
Venting structure
C429S164000
Reexamination Certificate
active
07858218
ABSTRACT:
A lithium ion secondary battery including an electrode assembly, a center pin positioned within the electrode assembly, a variable-length member coupled to the center pin, the variable-length member adapted to increase in length when an interior temperature of the center pin reaches a critical temperature, a can containing the electrode assembly, the center pin, and the variable-length member, and a cap assembly coupled to the can, the cap assembly having safety means fracturable in response to the variable-length member being increased in length.
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patent: 2003/0148175 (2003-08-01), Iwanaga et al.
Office Action, dated Apr. 16, 2008, for related U.S. Appl. No. 11/394,171.
Office Action, dated Oct. 20, 2008, for related U.S. Appl. No. 11/394,171.
Chang Seok Gyun
Chang Youn Han
Hyung Yoo Eup
Woo Soon Ki
Arciero Adam A
Christie Parker & Hale LLP
Samsung SDI & Co., Ltd.
Yuan Dah-Wei D
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