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Toray Battery Separator Film Co Ltd
Toray Battery Separator Film Co Ltd_20131212

Toray Battery Separator Film Co Ltd patents


Recent patent applications related to Toray Battery Separator Film Co Ltd. Toray Battery Separator Film Co Ltd is listed as an Agent/Assignee. Note: Toray Battery Separator Film Co Ltd may have other listings under different names/spellings. We're not affiliated with Toray Battery Separator Film Co Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "T" | Toray Battery Separator Film Co Ltd-related inventors


Polyolefin microporous membrane, producing same, and battery separator

A polyolefin microporous membrane is disclosed. The polyolefin microporous membrane includes a polyolefin resin, where the polyolefin resin contains at least 80 mass % polypropylene resin, and where the polyolefin microporous membrane has a maximum pore size of less than 30.0 nm and a mean flow pore size of less... Toray Battery Separator Film Co Ltd

Laminated polyolefin microporous membrane, battery separator, and production method thereof

A laminated polyolefin microporous membrane is disclosed. The laminated polyolefin microporous membrane includes a first polyolefin microporous membrane, and a second polyolefin microporous membrane. A shutdown temperature of the laminated polyolefin microporous membrane is from 128° C. to 135° C., an air permeation resistance increase rate from 30° C. to... Toray Battery Separator Film Co Ltd

Multi-layer polyolefin porous membrane, battery separator obtained using the same, and producing the same

A multi-layer polyolefin porous membrane is disclosed. The membrane includes first and second layers, and a plurality of protrusions including polyolefin. The protrusions have a protrusion width (W) satisfying 5 μm≦W≦50 μm and have a protrusion height (H) satisfying 0.5 μm≦H. The protrusions are randomly disposed on a first side... Toray Battery Separator Film Co Ltd

Microporous polyolefin film, separator for battery, and production processes therefor

A polyolefin microporous membrane is disclosed. The membrane has a width of not less than 100 mm, and a variation range of an F25 value in a width direction is not greater than 1 MPa. The F25 value is a value obtained by dividing a load at 25% elongation of... Toray Battery Separator Film Co Ltd

Polyolefin microporous membrane, production method thereof, separator for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery

a ratio of pin puncture strength to air permeation resistance at a membrane thickness of 16 μm being from 2.0 to 4.0 (gf/(sec/100 cc)).... Toray Battery Separator Film Co Ltd

Separator for battery

A separator for batteries that achieves both adhesiveness to electrodes and low thermal shrinkage, which have been conventionally difficult to be compatible with each other, and has excellent ion permeability in order to further improve the safety of the separator, on the assumption that lithium ion secondary batteries are widely... Toray Battery Separator Film Co Ltd

Polyolefin microporous film and producing same

A polyolefin microporous membrane includes a polyethylene composition, and 0.5% or more but less than 5% by mass of polypropylene, wherein the polyethylene composition includes polyethylene having a mass average molecular weight of 2.5×105 to 5×105 and ultrahigh molecular weight polyethylene having a mass average molecular weight of 1×106 to... Toray Battery Separator Film Co Ltd

Production microporous plastic film

A method of producing a microporous plastic film is disclosed. The method achieves various characteristics such as strength while having an excellent appearance grade by using a wet stretching method. The method includes kneading a diluent and a polymer with an extruder to produce a kneaded polymer, discharging the kneaded... Toray Battery Separator Film Co Ltd

Polyolefin multilayer microporous membrane and battery separator

A polyolefin multilayer microporous membrane is disclosed. The polyolefin multilayer microporous membrane has at least three layers, the membrane comprising a first microporous layer composed of a polyethylene resin containing an ultrahigh molecular weight polyethylene (surface layers) and a second microporous layer composed of a polyolefin rein containing a high-density... Toray Battery Separator Film Co Ltd

Polyolefin multilayer microporous film, producing same, and cell separator

A polyolefin multilayer microporous membrane is disclosed. The polyolefin multilayer microporous membrane has a low air permeability value, maintains high porosity and mechanical strength even when formed into a thin film. The polyolefin multilayer microporous membrane also has excellent impedance characteristics. The polyolefin multilayer microporous membrane has excellent battery characteristics... Toray Battery Separator Film Co Ltd

Polyolefin microporous membrane and production method thereof

A polyolefin microporous membrane is disclosed. The membrane includes at least one microporous membrane layer, where the microporous membrane layer has an air permeability between about 100 sec/100 cc and about 220 sec/100 cc, a pin puncture strength of at least 550 gf, and a crystallization half time t1/2 of... Toray Battery Separator Film Co Ltd

Organic/inorganic composite porous film and electrochemical device prepared thereby

Disclosed is an organic/inorganic composite porous film comprising: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles... Toray Battery Separator Film Co Ltd

Multi-layer polyolefin porous membrane, battery separator using same, and process for producing multi-layer polyolefin porous membrane

Considering that battery separators will require further thinner materials and lower costs in the future, a battery separator of the present invention, in which multi-layer polyolefin porous membrane with exceptionally high peel strength against a modified porous layer, suitable for high-speed processing during slit process and battery assembly process, and... Toray Battery Separator Film Co Ltd








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