Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer – spacer or materials for use therewith
Reexamination Certificate
2007-10-09
2007-10-09
Weiner, Laura (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer, spacer or materials for use therewith
C429S248000, C429S249000, C429S129000
Reexamination Certificate
active
10276880
ABSTRACT:
The present invention provides a lithium secondary battery and its fabrication method. More particularly, the present invention provides a lithium secondary battery comprising a super fine fibrous porous polymer separator film and its fabrication method, wherein the porous polymer separator film is fabricated by the following process: a) melting at least one polymer or dissolving at least one polymer with organic solvents to obtain at least one polymeric melt or at least one polymeric solution; b) adding the obtained polymeric melt or polymeric solution to barrels of an electrospinning machine; and c) discharging the polymeric melt or polymeric solution onto a substrate using a nozzle to form a porous separator film. The lithium secondary battery of the present invention has the advantages of better adhesion with electrodes, good mechanical strength, better performance at low and high temperatures, better compatibility with organic electrolyte solution of a lithium secondary battery.
REFERENCES:
patent: 3925525 (1975-12-01), LaNieve
patent: 4007058 (1977-02-01), Nelson et al.
patent: 4127706 (1978-11-01), Martin et al.
patent: 5219679 (1993-06-01), Abraham et al.
patent: 5240790 (1993-08-01), Chua et al.
patent: 5296185 (1994-03-01), Chau et al.
patent: 5460904 (1995-10-01), Gozdz et al.
patent: 5525443 (1996-06-01), Okuno et al.
patent: 6051175 (2000-04-01), Kurihara et al.
patent: 6180281 (2001-01-01), Schneider et al.
patent: 0 862 232 (1998-09-01), None
patent: 0 892 453 (1999-01-01), None
patent: 0 921 529 (1999-06-01), None
patent: 60-252716 (1985-12-01), None
patent: 08-250100 (1996-09-01), None
patent: 09-022724 (1997-01-01), None
patent: 09-259857 (1997-10-01), None
patent: 10-233233 (1998-09-01), None
patent: 2000-082498 (2000-03-01), None
Bohnke et al. “Fast ion transport in new lithium electrolytes gelled with PMMA.2. Influence of lithium salt concentration” Solid State Jonics 66 (1993), pp. 105-112.
Alamgir et al. “li Ion Conductive Electrolytes Based on Poly (vinyl chloride)” J. Electrochem. Soc., vol. 140, No. 6, Jun. 1993, pp. L96-L97.
Cho Byung Won
Cho Won Il
Choi Sung Won
Chun Suk Won
Jo Seong Mu
Darby & Darby
Korea Institute of Science and Technology
Weiner Laura
LandOfFree
Lithium secondary battery comprising a super fine fibrous... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lithium secondary battery comprising a super fine fibrous..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lithium secondary battery comprising a super fine fibrous... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3875624