Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Blowout type
Reexamination Certificate
2008-08-18
2011-11-08
Crepeau, Jonathan (Department: 1725)
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Blowout type
C429S082000
Reexamination Certificate
active
08053099
ABSTRACT:
A secondary battery is provided with a safety vent that can decrease the increased inner pressure of the secondary battery by being rapidly fractured when the inner pressure of the secondary battery is increased over a predetermined value. The secondary battery is constructed with a sealed outer case forming a receiving space in an inner side, an electrode assembly received in the receiving space of the outer case, a safety vent formed on one surface of the outer case, and a fracture induction part formed on the surface of the outer case and disposed at a portion of a circumference region of the safety vent. The fracture induction part is relatively thinner than the other portion of the surface of the outer case.
REFERENCES:
patent: 4207385 (1980-06-01), Hayama
patent: 2003/0131880 (2003-07-01), Marubayashi et al.
patent: 2006/0263685 (2006-11-01), Kwon
patent: 2006/0292437 (2006-12-01), Matsumoto et al.
patent: 1313642 (2001-09-01), None
patent: 11-297292 (1999-10-01), None
patent: 2002-008615 (2002-01-01), None
patent: 2004-178820 (2004-06-01), None
patent: 10-2006-0055400 (2006-05-01), None
Machine Translation of: JP 2004/178820 A, Hirakawa et al., Jun. 24, 2004.
Machine Translation of: JP 11/297292 A, Azema et al., Oct. 29, 1999.
Chinese Office Action issued by Chinese Patent Office on Nov. 17, 2010 corresponding to Korean Application No. 10-2007-0091364 with English translation attached.
Lee Sang-woo
Uh Hwail
Bushnell , Esq. Robert E.
Crepeau Jonathan
Douyette Kenneth
Samsung SDI & Co., Ltd.
LandOfFree
Secondary battery does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Secondary battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary battery will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4278355