Separator for lithium ion secondary battery

Details Separator for lithium ion secondary battery Separator for lithium ion secondary battery

2006-08-22

2006-08-22

Kalafut, Stephen J. (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

C429S249000

Reexamination Certificate

active

07094497

ABSTRACT:
A separator, used for a lithium ion secondary battery that produces electromotive force by lithium doping/dedoping, which is composed of a porous film comprising an organic polymer (component A) which can swell in an electrolyte solution to retain it, surrounding a nonwoven fabric which cannot swell in the electrolyte solution, the porous film including an electrolyte solution non-swelling organic polymer with a melting point of 210° C. or above (component B) and an electrolyte solution non-swelling organic polymer with a melting point of 180° C. or below (component C), wherein component B is incorporated in the fiber composing the nonwoven fabric. The separator is highly safe and exhibits low reduction mechanical properties with respect to organic solvents.

REFERENCES:
patent: 3174879 (1965-03-01), Stanimirovitch
patent: 3953241 (1976-04-01), Langer et al.
patent: 5362582 (1994-11-01), Chang et al.
patent: 5609976 (1997-03-01), Ueda et al.
patent: 5665265 (1997-09-01), Gies et al.
patent: 5681357 (1997-10-01), Eschbach et al.
patent: 5708351 (1998-01-01), Takamoro
patent: 5721067 (1998-02-01), Jacobs et al.
patent: 5834135 (1998-11-01), Pendalwar et al.
patent: 6194874 (2001-02-01), Kalegeropoulos
patent: 6514638 (2003-02-01), Kurose et al.
patent: 6579648 (2003-06-01), Nakamizo et al.
patent: 2001/0004502 (2001-06-01), Nakamizo et al.
patent: 2001/0004504 (2001-06-01), Nakamizo et al.
patent: 0 959 510 (1999-11-01), None
patent: 1 191 622 (2002-03-01), None
patent: 1 233 036 (2002-08-01), None
patent: 2 357 896 (2001-07-01), None
patent: 51-137760 (1976-11-01), None
patent: 05-62712 (1993-03-01), None
patent: 6-338347 (1994-06-01), None
patent: 07-153494 (1995-06-01), None
patent: 11-3731 (1999-01-01), None
patent: 11-045740 (1999-02-01), None
patent: 11-45742 (1999-02-01), None
patent: 2928779 (1999-05-01), None
patent: 2000-57847 (2000-02-01), None
patent: 2000-067917 (2000-03-01), None
patent: 3061756 (2000-04-01), None
patent: 3061759 (2000-04-01), None
patent: 2000-228215 (2000-08-01), None
patent: 2000-251932 (2000-09-01), None
patent: 3113652 (2000-09-01), None
patent: 2000-277147 (2000-10-01), None
patent: 2000-306610 (2000-11-01), None
patent: 2002-042867 (2002-02-01), None
patent: 2002-166218 (2002-06-01), None
patent: WO-98/54778 (1998-12-01), None
patent: WO-01/19906 (2001-03-01), None
Linden, “Handbook of Batteries, 3rd Editiion,” pp. 35-4 to 35-5 (2002).
European Search Report Issued Dec. 16, 2003.

Affiliated with

Also associated with

Rating

Separator for lithium ion 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 Separator for lithium ion secondary battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separator for lithium ion secondary battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3691276