Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Reexamination Certificate
2011-04-12
2011-04-12
Ruddock, Ula C. (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
C429S254000, C442S337000
Reexamination Certificate
active
07923143
ABSTRACT:
A battery separator comprising a nonwoven fabric, wherein the nonwoven fabric contains (1) superfine fibers having a fiber diameter of 3 μm or less, (2) noncircular fine fibers having a noncircular cross-sectional shape and having a fiber diameter of 3 to 5 μm (excluding 3 μm), the fiber diameter meaning a diameter of a circle having an area the same as that of the noncircular cross-sectional shape, and (3) polypropylene based high-strength composite fibers containing a fusible component on the surface thereof and having a tensile strength of 4.5 cN/dtex or more, and the fusible component contained in the polypropylene based high-strength composite fibers is fused, and a battery comprising the battery separator are disclosed. A battery separator of the present invention has a high electrolyte-holding capacity and is capable of effectively preventing a short circuit, even if the separator is designed to be thinner to enhance the capacity of a battery.
REFERENCES:
patent: 7402539 (2008-07-01), Takase et al.
patent: 2002/0090876 (2002-07-01), Takase et al.
patent: EP 0 921 580 (1998-06-01), None
patent: EP 1 079 448 (2001-02-01), None
patent: EP 0 834 938 (2002-02-01), None
patent: 57176665 (1982-10-01), None
patent: 57176666 (1982-10-01), None
patent: 10-251953 (1998-09-01), None
patent: 2002110130 (2002-04-01), None
patent: 2002-180330 (2002-06-01), None
patent: 2002231210 (2002-08-01), None
Ito Yasuhiro
Kondo Yoshihiko
Takase Toshiaki
Tanaka Masanao
Heslin Rothenberg Farley & & Mesiti P.C.
Japan Vilene Company Ltd.
Parsons Thomas H.
Ruddock Ula C.
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