Patent application number | Description | Published |
20100227223 | METHOD FOR PRODUCTION OF POROUS FILM, POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SEPARATOR - The method for producing a porous film of the present invention includes producing a stretched film by stretching a resin sheet containing at least polyolefin, and then irradiating the stretched film with a vacuum ultraviolet ray. The separator for a non-aqueous electrolyte battery of the present invention is composed of the porous film obtained by the production method of the present invention. The non-aqueous electrolyte battery of the present invention is provided with the separator for a non-aqueous electrolyte battery of the present invention. | 09-09-2010 |
20100239900 | BATTERY SEPARATOR AND NONAQUEOUS LITHIUM ION SECONDARY BATTERY HAVING THE SAME - The invention provides a battery separator comprising a porous resin film and a crosslinked polymer supported thereon and having iminodiacetic acid groups in side chains of the polymer chains. The iminodiacetic acid group is preferably represented by the formula | 09-23-2010 |
20110135988 | BATTERY SEPARATOR AND BATTERY USING THE SAME - The present invention relates to a battery separator including: a porous substrate; and a layer of a crosslinked polymer supported on at least one surface of the porous substrate, in which the crosslinked polymer is obtained by reacting (a) a reactive polymer having, in the molecule thereof, a first reactive group containing active hydrogen and a second reactive group having cationic polymerizability with (b) a polycarbonate urethane prepolymer terminated by an isocyanate group. | 06-09-2011 |
20110135989 | BATTERY SEPARATOR AND BATTERY USING THE SAME - The present invention relates to a battery separator including: a porous substrate; and a layer of a crosslinked polymer supported on at least one surface of the porous substrate, in which the crosslinked polymer is obtained by reacting (a) a reactive polymer having, in the molecule thereof, a reactive group containing active hydrogen with (b) a polycarbonate urethane prepolymer terminated by an isocyanate group. | 06-09-2011 |
20110165449 | BATTERY SEPARATOR AND METHOD FOR PRODUCING THE SAME, AND LITHIUM ION SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - A battery separator ( | 07-07-2011 |
20120035285 | POLYOLEFIN POROUS FILM, METHOD FOR PRODUCING THE SAME AND APPARATUS FOR PRODUCING THE SAME - The present invention relates to a method for producing a polyolefin porous film, the method including the steps of: (a) melt-kneading a solution containing a polyolefin having a weight average molecular weight of 500,000 or more and a solvent to obtain a kneaded product; (b) extruding and cooling the kneaded product to obtain a gel-like molded product; (c) drawing the gel-like molded product to obtain a drawn sheet; (d) removing the solvent from the drawn sheet, followed by drying to obtain a film in which fine pores are formed; (e) conducting heat treatment, while fixing the film in both directions of a MD and a TD thereof and drawing the film at a draw ratio of exceeding 0% to less than 0.1% in at least one direction of the MD and the TD thereof; and (f) conducting heat treatment while decreasing a width of the film in at least one direction of the MD and the TD of the film. | 02-09-2012 |
20120171546 | HEAT DISSIPATING HOUSING AND LITHIUM BATTERY PACK USING THE SAME, AND SEMICONDUCTING TAPE FOR HEAT DISSIPATION - The heat dissipating housing ( | 07-05-2012 |
20130157086 | PRESSURE-SENSITIVE ADHESIVE TAPE FOR BATTERY, BATTERY USING THE PRESSURE-SENSITIVE ADHESIVE TAPE AND PROCESS FOR MANUFACTURING A BATTERY - The present invention relates to a pressure-sensitive adhesive tape for battery containing a substrate and a pressure-sensitive adhesive layer provided on at least one surface of the substrate, in which the pressure-sensitive adhesive layer has a thickness of from 2 μm to 100 μm, and in which the pressure-sensitive adhesive tape has a 180° peeling adhesive force toward an aluminum foil after pressure bonding at 25° C. being 0.05 N/10 mm or more and a 180° peeling adhesive force toward an aluminum foil after thermocompression bonding at a temperature of 30° C. or higher to lower than 200° C. being 0.5 N/10 mm or more. | 06-20-2013 |
20130177817 | SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE, AND PRODUCTION METHODS THEREOF - The present invention aims to provide a method for producing a separator for nonaqueous electrolyte electricity storage devices, the method allowing avoidance of use of a solvent that places a large load on the environment, and also allowing relatively easy control of parameters such as the porosity and the pore diameter. | 07-11-2013 |
20130330591 | POROUS EPOXY RESIN MEMBRANE, SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE, COMPOSITE SEMIPERMEABLE MEMBRANE, AND PRODUCTION METHODS THEREOF - The present invention provides a method for producing a porous membrane. The method allows: avoidance of use of a solvent that places a large load on the environment; relatively easy control of parameters such as the porosity and the pore diameter; and high chemical stability of a resultant porous membrane. The method for producing a porous membrane of the present invention includes the steps of: preparing an epoxy resin composition containing an epoxy resin, a curing agent represented by H | 12-12-2013 |
20130330633 | SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE, AND PRODUCTION METHODS THEREOF - The present invention provides a method for producing a separator for nonaqueous electrolyte electricity storage devices. The method allows: avoidance of use of a solvent that places a large load on the environment; relatively easy control of parameters such as the porosity and the pore diameter; and a relatively high strength of a resultant separator for nonaqueous electrolyte electricity storage devices. The present invention relates to a method for producing a separator for nonaqueous electrolyte electricity storage devices that has a thickness ranging from 5 to 50 μm. The method includes the steps of preparing an epoxy resin composition containing a glycidylamine-type epoxy resin, a curing agent, and a porogen; forming a cured product of the epoxy resin composition into a sheet shape or curing a sheet-shaped formed body of the epoxy resin composition, so as to obtain an epoxy resin sheet; and removing the porogen from the epoxy resin sheet by means of a halogen-free solvent. | 12-12-2013 |
20130337336 | SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE, AND PRODUCTION METHODS THEREOF - The present invention provides a method for producing a separator for nonaqueous electrolyte electricity storage devices. The method allows: avoidance of use of a solvent that places a large load on the environment; relatively easy control of parameters such as the porosity and the pore diameter; and a high electrochemical stability of a resultant separator for nonaqueous electrolyte electricity storage devices. The present invention relates to a method for producing a separator for nonaqueous electrolyte electricity storage devices that has a thickness ranging from 5 to 50 μm. The method of the present invention includes the steps of: preparing an epoxy resin composition containing an epoxy resin whose molecular structure has no aromatic ring, a curing agent, and a porogen; forming a cured product of the epoxy resin composition into a sheet shape or curing a sheet-shaped formed body of the epoxy resin composition, so as to obtain an epoxy resin sheet; and removing the porogen from the epoxy resin sheet by means of a halogen-free solvent. | 12-19-2013 |
20140001298 | FILM WINDING CORE, AND WOUND FILM BODY USING SAME | 01-02-2014 |
20140001306 | FILM WINDING CORE, AND WOUND FILM BODY USING SAME | 01-02-2014 |
20140101930 | METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE ELECTRICITY STOREAGE DEVICE - The present invention provides a method for producing a separator for nonaqueous electrolyte electricity storage devices. The method allows: avoidance of use of a solvent that places a large load on the environment; and relatively easy control of parameters such as the porosity and the pore diameter. The present invention includes the steps of: preparing an epoxy resin composition containing an epoxy resin, a curing agent, and a porogen; forming a cured product of the epoxy resin composition into a sheet shape or curing a sheet-shaped formed body of the epoxy resin composition, so as to obtain an epoxy resin sheet; removing the porogen from the epoxy resin sheet by means of a halogen-free solvent so as to form a porous epoxy resin membrane; and subjecting at least one surface of the porous epoxy resin membrane to atmospheric-pressure plasma treatment so as to remove a surface portion of the porous epoxy resin membrane. | 04-17-2014 |
20140106235 | SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE - Provided is a separator for nonaqueous electrolyte electricity storage devices that includes an improved porous epoxy resin membrane. In the separator for nonaqueous electrolyte electricity storage devices, a ratio I/Io between a peak intensity Io of an absorption peak present at 1240 cm | 04-17-2014 |
20140115879 | METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE ELECTRICITY STOREAGE DEVICE - Provided is a separator for nonaqueous electrolyte electricity storage devices that includes an improved porous epoxy resin membrane. At least one compound selected from a carboxylic acid, a carboxylic acid salt, a carboxylic acid anhydride, and a carboxylic acid halide, is brought into contact with a porous epoxy resin membrane, and thus hydroxyl groups contained in the porous membrane are reacted with the compound to produce carboxylic acid ester bonds. As a result of this treatment, the amount of active hydroxyl groups present in the porous epoxy resin membrane is reduced, and the porous epoxy resin membrane becomes suitable as a separator for nonaqueous electrolyte electricity storage devices. An epoxy resin sheet yet to be made porous may be subjected to reaction with the compound. | 05-01-2014 |
20140120334 | METHOD AND APPARATUS FOR PRODUCING POROUS THERMOSETTING RESIN SHEET, POROUS THERMOSETTING RESIN SHEET, AND POROUS THERMOSETTING RESIN SHEET ROLL - The present invention provides a method for producing a long strip-shaped porous thermosetting resin sheet free of defective portions leading to breakage. The present invention is a method for producing a porous thermosetting resin sheet, the method including the steps of cutting a hollow-cylindrical or solid-cylindrical thermosetting resin block containing a porogen into a sheet of a thermosetting resin with a predetermined thickness by bringing a cutting blade into contact with the thermosetting resin block while rotating the thermosetting resin block about a hollow cylinder axis or a solid cylinder axis; and making the resultant thermosetting resin sheet porous by removing the porogen from the thermosetting resin sheet. The cutting blade is reciprocated approximately parallel to a direction of the rotational axis of the thermosetting resin block while the cutting is being performed. | 05-01-2014 |
20140137399 | METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE - The present invention provides a method for producing a separator for nonaqueous electrolyte electricity storage devices. The method allows: avoidance of use of a solvent that places a large load on the environment; and relatively easy control of parameters such as the porosity and the pore diameter. The production method of the present invention includes the steps of: preparing an epoxy resin composition containing an epoxy resin, a curing agent, and a porogen; forming a cured product of the epoxy resin composition into a sheet shape or curing a sheet-shaped formed body of the epoxy resin composition, so as to obtain an epoxy resin sheet; removing the porogen from the epoxy resin sheet by means of a halogen-free solvent so as to form a porous epoxy resin membrane; and drying the porous epoxy resin membrane by heat-roll drying. | 05-22-2014 |
20150076741 | METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES AND METHOD FOR PRODUCING POROUS EPOXY RESIN MEMBRANE - Provided is a method for producing a separator for nonaqueous electrolyte electricity storage devices that includes a porous epoxy resin membrane, the method including: a step (i) of preparing an epoxy resin composition containing an epoxy resin, a curing agent, and a porogen; a step (ii) of cutting a cured product of the epoxy resin composition into a sheet shape or curing a sheet-shaped formed body of the epoxy resin composition so as to obtain an epoxy resin sheet; a step (iii) of removing the porogen from the epoxy resin sheet using a halogen-free solvent so as to form a porous epoxy resin membrane; a step (iv) of irradiating the porous epoxy resin membrane with infrared ray so as to measure infrared absorption characteristics of the porous epoxy resin membrane; and a step (v) of calculating a membrane thickness and/or an average pore diameter of the porous epoxy resin membrane based on the infrared absorption characteristics. This production method can avoid the use of a solvent that places a large load on the environment, and is adapted for control of parameters such as the average pore diameter and the membrane thickness. | 03-19-2015 |