Patent application number | Description | Published |
20090004566 | Negative Electrode for Non-Aqueous Electrolyte Secondary Batteries, and Non-Aqueous Electrolyte Secondary Battery Having the Same - A negative electrode for non-aqueous electrolyte secondary batteries has a mixture layer disposed on a current collector. The mixture layer includes a composite negative electrode active material, a first binder containing an acryl-group-containing polymer, and a second binder containing adhesive rubber particles. The composite negative electrode active material contains carbon nanofibers, a catalyst element, and silicon-containing particles capable of charging and discharging at least lithium ions. The first binder binds the silicon-containing particles to the current collector, and the second binder binds the carbon nanofibers together. | 01-01-2009 |
20090123840 | Non-Aqueous Electrolyte Secondary Battery - A non-aqueous electrolyte secondary battery includes a negative electrode, a positive electrode, and a non-aqueous electrolyte interposed therebetween. On at least one side of a current collector of the negative electrode, is formed a negative-electrode mixture layer containing an active material capable of storing and emitting at least lithium ions. The negative-electrode mixture layer has a plurality of mixture-layer expansion-absorbing grooves formed parallel to each other in such a manner as to expose the current collector. The mixture-layer expansion-absorbing grooves are formed in the position facing the positive-electrode mixture layer. | 05-14-2009 |
20090186235 | Resin Composition and Multi-Layer Structure Using the Same - An object of the present invention is to provide a resin composition in which generation of burned deposit and buildup occurring in a recycled layer is suppressed without adding a specific additive as well as a multi-layer structure using the same. The invention relates to a resin composition comprising an ethylene-vinyl alcohol copolymer (A) comprising the following structural unit (1) and at least one thermoplastic resin (B) selected from the group consisting of polyolefin and polystyrene as well as a multi-layer structure comprising the resin composition: | 07-23-2009 |
20090202906 | LITHIUM SECONDARY BATTERY - A negative electrode of a lithium secondary battery has a negative electrode active material including at least one element of silicon and tin. Capacities of the positive electrode and the negative electrode of the lithium secondary battery are set as follows. In a completely charged state of the lithium secondary battery charged by a predetermined charging method, the positive electrode active material and the negative electrode active material are in a first partially charged state, respectively. In a completely discharged state of the lithium secondary battery discharged by a predetermined discharging method, the negative electrode active material is in a second partially charged state. | 08-13-2009 |
20090258300 | Ethylene/Vinyl Alcohol-Derived Copolymer Fiber - The invention provides a fiber which is excellent in electrolyte absorption and retentivity and oxidation resistance and is suitable for use as a separator for alkaline secondary batteries. The invention is an ethylene/vinyl alcohol-derived copolymer fiber comprising an ethylene/vinyl alcohol-derived copolymer (A) having the following structural unit (1): | 10-15-2009 |
20090311524 | Multi-Layer Film - An object of the present invention is to provide a multi-layer film excellent in adhesiveness, appearance, transparency, and anti-pinhole property even at high-speed process as well as a multi-layer stretched film excellent in gas barrier property and anti-pinhole property. The invention relates to a multi-layer film which comprises a laminate of: a thermoplastic resin-containing layer; and a layer comprising an ethylene-vinyl alcohol copolymer comprising the following structural unit (1), wherein the thermoplastic resin-containing layer is provided on one side or both sides of the layer comprising an ethylene-vinyl alcohol copolymer, | 12-17-2009 |
20090317721 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery has at least negative electrode, a positive electrode, and a separator between the positive electrode and negative electrode. Negative electrode has columnar first negative electrode active materials that are discretely formed on the outer peripheral surface of negative electrode current collector in the winding direction and can reversibly insert and extract lithium ions, and columnar second negative electrode active materials discretely formed on the inner peripheral surface. The positive electrode has positive electrode mixture layers containing a positive electrode active material capable of reversibly inserting and extracting lithium ions, on both surfaces of a positive electrode current collector. The difference between the porosity generated between first negative electrode active materials in negative electrode and that generated between the second negative electrode active materials in winding is set within 1.1%. | 12-24-2009 |
20100055482 | Resin Composition and Multi-Layer Structure Using the Same - An object of the present invention is to provide a resin composition excellent in retort resistance at high temperature, gas barrier property, and anti-pinhole property as well as a multi-layer structure using the same. The invention relates to a resin composition comprising an ethylene-vinyl alcohol copolymer (A) and a polyamide-based resin (B), wherein the ethylene-vinyl alcohol copolymer (A) is an ethylene-vinyl alcohol copolymer comprising the following structural unit (1), preferably obtained by saponifying a copolymer of 3,4-diacetoxy-1-butene, a vinyl ester-based monomer, and ethylene: | 03-04-2010 |
20100068627 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME ( as amended - A nonaqueous electrolyte secondary battery includes: a positive electrode | 03-18-2010 |
20100156351 | DETERIORATION DETECTING METHOD AND DETERIORATION SUPPRESSING METHOD FOR RECHARGEABLE LITHIUM BATTERIES, DETERIORATION DETECTOR, DETERIORATION SUPPRESSOR, BATTERY PACK, AND CHARGER - According to a deterioration detecting method for rechargeable lithium batteries, battery voltages of a rechargeable lithium battery before and after the completion of charging or discharging are measured. An evaluation value is calculated based on the measured battery voltages. This evaluation value is compared with a reference value of the rechargeable lithium battery stored in advance. A deterioration level of the rechargeable lithium battery is estimated based on this comparison result. In addition, further deterioration can be suppressed by controlling charging and discharging of the rechargeable lithium battery based on the estimated deterioration level. | 06-24-2010 |
20100178541 | LITHIUM SECONDARY BATTERY - A lithium secondary battery having enhanced safety, which includes an electrode group, a non-aqueous electrolyte and a battery can for housing them. The electrode group includes: a positive electrode having a strip-shaped positive electrode current collector and a material mixture layer carried thereon; a negative electrode having a strip-shaped negative electrode current collector and a material mixture layer carried thereon; a separator; and a porous heat resistant layer. The positive and negative electrodes are spirally wound with the separator and the porous heat resistant layer interposed therebetween. An outermost surface of the electrode group includes an exposed portion of either of the positive and negative electrode current collectors. The exposed portion faces an inner surface of the battery can with the separator interposed therebetween, and has opposite polarity to that of the battery can. | 07-15-2010 |
20100227207 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery having a high negative electrode energy density, good safety and high discharge characteristics is provided without damaging manufacturing facilities. The non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a porous heat-resistant layer interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode comprises a negative electrode current collector and a negative electrode mixture layer on a surface of the negative electrode current collector, and the negative electrode mixture layer has an active material density of 1.5 g/ml to 1.8 g/ml. The porous heat-resistant layer is carried on the negative electrode, and the porous heat-resistant layer comprises magnesium oxide particles having a mean particle size of 0.5 μm to 2 μm. | 09-09-2010 |
20120041118 | POLYVINYL ALCOHOL-BASED RESIN COMPOSITION - The present invention provides a polyvinyl alcohol-based resin (PVOH-based resin) composition having less coloration from melt processing and having high aging stability of the melt viscosity. The present invention relates to a polyvinyl alcohol-based resin composition comprising a polyvinyl alcohol-based rein having a structural unit represented by the following formula (1) and having an absorbance of 0.1 to 0.3 of 280 nm in an ultraviolet absorbance spectrum as a 4 mass % aqueous solution, a carboxylic acid and an alkaline (earth) metal salt, wherein when an aqueous solution of the polyvinyl alcohol-based resin composition is prepared so as to have a content of the polyvinyl alcohol-based resin of 4 mass %, the pH of the aqueous solution at 20° C. is from 5.5 to 7: | 02-16-2012 |
20120070709 | LITHIUM SECONDARY BATTERY - The lithium secondary battery obtained by the present invention is a lithium secondary battery provided with a nonaqueous electrolyte and electrode body | 03-22-2012 |
20130131270 | RESIN COMPOSITION AND MOLDED ARTICLE THEREOF - There is provided a resin composition affording a melt-molded article having excellent gas barrier properties and flex crack resistance. The present invention relates to a resin composition comprising a polyvinyl alcohol resin (A) having a 1,2-diol structural unit represented by the following general formula (1), a styrene-based thermoplastic elastomer (B), and a polyamide graft block copolymer (C) containing a polymer block of an aromatic vinyl compound and a polymer block of an olefinic compound in a main chain and having a graft chain composed of a polyamide: | 05-23-2013 |
20140308534 | BIODEGRADABLE LAMINATE - A biodegradable laminate, wherein a polyvinyl alcohol resin layer is laminated on at least one surface of an aliphatic polyester resin layer through an adhesive layer, which is excellent in biodegradability and gas barrier properties, and also excellent in interlayer adhesiveness, is obtained. The adhesive layer comprises, as a main component, a polyester resin (A′) which has a polar group and is obtained by graft polymerization of an α,β-unsaturated carboxylic acid or an anhydride thereof on a biodegradable polyester resin (A) comprising at least one structural unit selected from structural units represented by the following general formulae (1), (2), and (3): | 10-16-2014 |
20140331485 | METHOD FOR FABRICATING A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a positive electrode | 11-13-2014 |