Electrochemical cell exhibiting enhanced safety features

Details Electrochemical cell exhibiting enhanced safety features Electrochemical cell exhibiting enhanced safety features

2007-10-22

2011-10-18

Crepeau, Jonathan (Department: 1725)

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

C429S061000, C429S164000, C429S211000, C429S246000, C429S057000, C429S094000

Reexamination Certificate

active

08039135

ABSTRACT:
Disclosed is the structure of a center pin assembly inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type electrode assembly. The center pin assembly can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside, when the internal temperature rises, and/or when the device is overcharged. The center pin assembly includes a center pin manufactured by winding a planar substrate into a tubular shape, the planar substrate having at least two protrusions formed in an embossing type or at least two discontinuous scores formed in a predetermined shape; and a container placed in a space inside the center pin, the container containing a substance capable of improving the safety of the device.

REFERENCES:
patent: 2282760 (1942-05-01), Hauel
patent: 6063518 (2000-05-01), Dewulf et al.
patent: 6207321 (2001-03-01), Fukagawa et al.
patent: 2004/0258987 (2004-12-01), Shin
patent: 2005/0008930 (2005-01-01), Johnson et al.
patent: 2006/0263676 (2006-11-01), Chang et al.
patent: 2007/0269711 (2007-11-01), Meguro et al.
patent: 07254402 (1995-10-01), None
patent: 08250155 (1996-09-01), None
patent: 08255631 (1996-10-01), None
patent: 08264206 (1996-10-01), None
patent: 11067263 (1999-03-01), None
patent: 11-204140 (1999-07-01), None
patent: 1020040110600 (2004-12-01), None
patent: 2006/104333 (2006-10-01), None
patent: WO 2006/049167 (2006-10-01), None
Abstract of JP 07254402 A, Hanabusa et al., Oct. 1995.
International Search Report, PCT/KR2007/005184.

Affiliated with

Also associated with

Rating

Electrochemical cell exhibiting enhanced safety features does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrochemical cell exhibiting enhanced safety features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochemical cell exhibiting enhanced safety features will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4282111