Patent application number | Description | Published |
20100151311 | LAMINATED POROUS FILM AND SEPARATOR FOR CELL - A laminated porous film having a shutdown (SD) property and a high breakdown (BD) property combined includes at least two layers, which are a porous membrane layer (A layer) having a thickness of 10 μm or greater other than non-woven fabric and a non-woven fabric layer (B layer) having a fiber diameter of 1 μm or less. A value of the ratio (AP | 06-17-2010 |
20120135317 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packed at a high density, by using a particulate active material having a low aspect ratio. | 05-31-2012 |
20120141885 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packed at a high density, by using a particulate active material having a low aspect ratio. | 06-07-2012 |
20120141886 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packet at a high density, by using a particulate active material having a low aspect ratio. | 06-07-2012 |
20120141887 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packed at a high density, by using a particulate active material having a low aspect ratio. | 06-07-2012 |
20120231323 | LAMINATED POROUS FILM, SEPARATOR FOR BATTERY, AND BATTERY - Disclosed is a laminated porous film which has both gas permeability and heat resistance and can exhibit excellent smoothness and excellent pin extraction properties when used as a separator for a battery. The laminated porous film is characterized by having a heat-resistant layer laminated on at least one surface of a polyolefin resin porous film, wherein the heat-resistant layer comprises a filler and a resin binder, and wherein the surface of the heat-resistant layer has a static friction coefficient of 0.45 or less, a gas permeability degree of 2000 sec/100 ml or less and a tensile elastic modulus of 400 to 1000 MPa when the film is stretched in the lengthwise direction at a stretching rate of 3%. | 09-13-2012 |
20130288132 | POLYOLEFIN RESIN POROUS FILM, AND NON-AQUEOUS ELECTROLYTE CELL SEPARATOR USING SAME - This polyolefin resin porous film can be easily produced, and when used as a non-aqueous electrolyte cell separator, can suppress clogging and can evince a high cell output. The polyolefin resin porous film is a porous film having a polyolefin resin as the primary component and is characterized by the average flow diameter pressure (P | 10-31-2013 |
20150044541 | LAMINATED POROUS FILM, SEPARATOR FOR BATTERY, AND BATTERY - Disclosed is a laminated porous film which has both gas permeability and heat resistance and can exhibit excellent smoothness and excellent pin extraction properties when used as a separator for a battery. The laminated porous film is characterized by having a heat-resistant layer laminated on at least one surface of a polyolefin resin porous film, wherein the heat-resistant layer comprises a filler and a resin binder, and wherein the surface of the heat-resistant layer has a static friction coefficient of 0.45 or less, a gas permeability degree of 2000 sec/100 ml or less and a tensile elastic modulus of 400 to 1000 MPa when the film is stretched in the lengthwise direction at a stretching rate of 3%. | 02-12-2015 |