Separator for battery and lithium ion battery using the same

Details Separator for battery and lithium ion battery using the same Separator for battery and lithium ion battery using the same

2007-02-27

2007-02-27

Ruthkosky, Mark (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

C429S142000, C264S046200, C264S054000

Reexamination Certificate

active

11202567

ABSTRACT:
A battery separator of the invention is obtained by press forming a meltblown nonwoven fabric comprising 4-methyl-1-pentene polymer or a 4-methyl-1-pentene/α-olefin copolymer, the battery separator having an average fiber diameter of 0.8 to 5 μm, a basis weight of 9 to 30 g/m2, a porosity of 30 to 60%, and a load at 5% elongation in the MD direction (longitudinal direction) of not less than 1.2 (kg/5 cm width). A lithium ion secondary battery of the invention includes the battery separator.

REFERENCES:
patent: 4734196 (1988-03-01), Kono et al.
patent: 5830554 (1998-11-01), Kaimai et al.
patent: 2004/0248012 (2004-12-01), Pekala
patent: 2002-222464 (2003-05-01), None
patent: 2003-142064 (2003-05-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3849684