Chemistry: electrical current producing apparatus – product – and – Plural concentric or single coiled electrode
Reexamination Certificate
2006-04-24
2010-02-02
Kalafut, Stephen J. (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Plural concentric or single coiled electrode
C429S186000
Reexamination Certificate
active
07655349
ABSTRACT:
A cylindrical lithium secondary battery includes an electrode assembly which has a first electrode plate, a second electrode plate, and a separator provided between the first electrode plate and the second electrode plate, is wound in a spiral shape, and has a central space at the center of winding; a core member which is inserted into the central space of the electrode assembly; a case having a space for containing the electrode assembly; and a cap assembly which is connected to an upper portion of the case so as to seal the case. The core member is formed in a tube shape having a gap along a longitudinal direction, which divides the core member into a body portion and left and right lateral end portions, wherein an imaginary arc line extending from an outer circumferential surface of the body portion of the core member defines an imaginary circumference, and wherein the left and right lateral end portions are located inside the imaginary circumference and comprise a pair of first bending portions, inwardly bending and symmetrically disposed with respect to the gap, and a pair of second bending portions bending in a rotation direction that is opposite to the inwardly bending rotational directions of the first bending portions.
REFERENCES:
patent: 3796606 (1974-03-01), Lehmann et al.
patent: 5047068 (1991-09-01), Stoklosa
patent: 5882815 (1999-03-01), Tagawa
patent: 6020084 (2000-02-01), Romero et al.
patent: 2003/0148175 (2003-08-01), Iwanaga et al.
patent: 2003/0198863 (2003-10-01), Murashige et al.
patent: 2006/0257735 (2006-11-01), Kim
patent: 0872909 (1998-10-01), None
patent: 1139458 (2001-10-01), None
patent: 4-332481 (1992-11-01), None
patent: 8-255631 (1996-10-01), None
patent: 8-264206 (1996-10-01), None
patent: 162801 (1998-06-01), None
patent: 2001-283984 (2001-10-01), None
patent: 2003-43745 (2003-06-01), None
European Search Report issued in corresponding European Patent Application No. 06113177.7 dated Jun. 6, 2006.
Chang Youn Han
Kim Jin Wook
Kim Jong Ku
Nam Sang Bong
Woo Soon Ki
Kalafut Stephen J.
Samsung SDI & Co., Ltd.
Stein McEwen, LLP
LandOfFree
Cylindrical lithium 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 Cylindrical lithium secondary battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylindrical lithium secondary battery will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4184541