Abstract: Provided is a technique that can obtain a wound electrode body simply and conveniently. One aspect of a battery herein disclosed is provided with a wound electrode body in which a strip-shaped positive electrode and a strip-shaped negative electrode are wound around in a predetermined winding direction around a winding axis via a strip-shaped separator. The second separator includes a region positioned outward from a winding terminal edge of the first separator; the second separator includes an extending portion extending beyond the winding terminal edge of the first separator in the winding direction; at least a part of the extending portion and a region positioned inward from the extending portion in the second separator are bonded together with a second adhesive layer existed on a surface of the second separator; and a heat-resistant layer is existed on an outermost surface of the wound electrode body.

Abstract: Provided is a technique that can obtain a wound electrode body simply and conveniently. One aspect of a battery herein disclosed is provided with a wound electrode body in which a positive electrode and a negative electrode are wound around in a predetermined winding direction around a winding axis via a separator. The battery includes a first separator and a second separator as the separator; the second separator includes a region positioned outward from an winding terminal edge of the first separator; the second separator includes an extending portion extending beyond a winding terminal edge of the first separator in the winding direction; a second adhesive is existed at least on a part of an inner surface of the extending portion; and the extending portion and a region positioned inward from the extending portion in the second separator are bonded via the second adhesive layer.

Abstract: The disclosed flat-shaped wound electrode assembly includes a negative electrode, a positive electrode, a first separator, and a second separator. They are stacked one on another to arrange the first separator between the negative electrode and the positive electrode, and to arrange the second separator on the outermost surface of the wound electrode assembly. The resultant is wound around a winding axis in a longitudinal direction. On each of both main surfaces of the first separator and both main surfaces of the second separator, an adhesion layer is located in stripe patterns. When viewed from a flat side surface of the wound electrode assembly, in a predetermined direction, an angle of the adhesion layer of the first separator with respective to the winding axis on the main surface and an angle of the adhesion layer of the second separator with respect to the winding axis are different from each other.

Abstract: The separator disclosed herein includes a substrate and an adhesive layer. The adhesive layer is partially provided on one side of, or both of two sides of, the substrate. Where an initial thickness of the separator is T0, a thickness of the separator when the separator is impregnated with an electrolyte solution and supplied with a pressure of 1 MPa is T1, a thickness of the separator when, after this, the separator is supplied with a pressure of 2 MPa for 1 hour, and the pressure is decreased to 0.5 MPa, is T2, and a thickness of the separator when, after this, the separator is supplied with a pressure of 4 MPa for 48 hours, is T4, the separator satisfies inequalities (1) through (3): (1) 1?T1/T0?1.1; (2) 0.92?T2/T1?1; and (3) 0.6?T4/T1?0.8.

Abstract: A separator having both high adhesion to electrodes and high impregnating ability of a nonaqueous electrolyte is provided. The separator disclosed here includes a base material layer of a porous resin, and a ceramic layer containing inorganic particles and disposed on at least one surface of the base material layer. Principal surfaces of the separator have long sides. The separator further includes an adhesive layer having portions arranged at a predetermined pitch to form a stripe pattern on at least one of the principal surfaces. An angle formed by the adhesive layer and the long side of the at least one principal surface of the separator is 20° or more and 70° or less.

Abstract: The separator disclosed here includes a base material layer of a porous resin, and a ceramic layer containing 85 mass % or more of first inorganic particles and disposed on at least one surface of the base material layer. Principal surfaces of the separator have long sides. The separator further includes an adhesive layer having portions arranged at a predetermined pitch to form a stripe pattern on at least one of the principal surfaces. The adhesive layer contains an adhesive resin and second inorganic particles. A content of the second inorganic particles in the adhesive layer is 3 mass % or more and 65 mass % or less. An angle formed by the adhesive layer and the long side of the at least one principal surface of the separator is 20° or more and 70° or less.

Abstract: The purpose of the present disclosure is to provide a non-aqueous electrolyte secondary battery capable of enhancing insulation between a positive electrode and a negative electrode and suppressing thermal runaway of the battery due to external impact in a charged state. A non-aqueous electrolyte secondary battery, which is one embodiment of the present disclosure, comprises a wound electrode body in which a positive electrode and a negative electrode are wound with a first separator and a second separator being interposed therebetween, wherein the first separator is provided on the outer side of the wound positive electrode, the second separator is provided on the inner side of the wound positive electrode. This non-aqueous electrolyte secondary battery is characterized in that the piercing strength of the second separator is higher than that of the first separator.

Abstract: A nonaqueous electrolyte secondary battery having an electrode group in which a positive electrode plate containing a positive electrode active material and a negative electrode plate containing a negative electrode active material are wound with a separator there between. The positive electrode active material uses a lithium transition metal oxide represented by the formula LiaNixM1?xO2 (0.9?a?1.2, 0.8?x<1, and M is at least one element of Co, Mn, and Al). The positive electrode plate is provided with a current-collecting tab placed in a position that is 200 mm or more apart from the winding start of the positive electrode plate. The separator has an MD direction tensile strength (SMD)-to-TD direction tensile strength (STD) ratio (SMD/STD) of from 0.72 to 1.37 and an MD direction tensile elongation (EMD)-to-TD direction tensile elongation (ETD) ratio (EMD/ETD) of from 0.34 to 1.29.

Abstract: A nonaqueous electrolyte secondary battery having an electrode group in which a positive electrode plate containing a positive electrode active material and a negative electrode plate containing a negative electrode active material are wound with a separator there between. The positive electrode active material uses a lithium transition metal oxide represented by the formula LiaNixM1-xO2 (0.9?a?1.2, 0.8?x<1, and M is at least one element of Co, Mn, and Al). The positive electrode plate is provided with a current-collecting tab placed in a position that is 200 mm or more apart from the winding start of the positive electrode plate. The separator has an MD direction tensile strength (SMD)-to-TD direction tensile strength (STD) ratio (SMD/STD) of from 0.72 to 1.37 and an MD direction tensile elongation (EMD)-to-TD direction tensile elongation (ETD) ratio (EMD/ETD) of from 0.34 to 1.29.

Abstract: Provided is a fuel cell having improved ion conductivity in the catalyst layer. The catalyst layer includes a catalytic metal, a carbon particle, and an ion exchanger. The catalytic metal is carried on the carbon particle. The ion exchanger includes a first functional group capable of being adsorbed or bound to the catalytic metal, and a second functional group providing the ion conductivity. The ion exchanger is adsorbed or bound to the catalytic metal via the first functional group. The bond between the catalytic metal and the ion exchanger includes a covalent bond, a coordinate bond or an ion bond.

Abstract: A membrane electrode assembly includes an electrolyte membrane, anode catalyst layers, and cathode catalyst layers provided counter to the anode catalyst layers, respectively. An insulating layer is provided on the electrolyte membrane between adjacent anode catalyst layers. An insulating layer is provided on the electrolyte membrane between adjacent cathode catalyst layers. The resistivity of the insulating layer is preferably identical to or higher than that of the electrolyte membrane.

Abstract: Electro membrane assemblies are formed respectively in openings provided in a substrate. Each membrane electrode assembly is provided with an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer. A protective layer is provided on the substrate disposed between the adjacent anode catalyst layers. The other protective layer is provided on the substrate disposed between the adjacent cathode catalyst layers. The protective layer and the other protective layer preferably contain a resin whose number of C—F bonds is greater than that of the substrate.

Abstract: Electro membrane assemblies are formed respectively in openings provided in a substrate. Each membrane electrode assembly is provided with an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer. A protective layer is provided on the substrate disposed between the adjacent anode catalyst layers. The other protective layer is provided on the substrate disposed between the adjacent cathode catalyst layers. The protective layer and the other protective layer preferably contain a resin whose number of C—F bonds is greater than that of the substrate.

Abstract: A membrane electrode assembly includes an electrolyte membrane, anode catalyst layers, and cathode catalyst layers provided counter to the anode catalyst layers, respectively. An insulating layer is provided on the electrolyte membrane between adjacent anode catalyst layers. An insulating layer is provided on the electrolyte membrane between adjacent cathode catalyst layers. The resistivity of the insulating layer is preferably identical to or higher than that of the electrolyte membrane.

Abstract: There is disclosed an air cleaning apparatus usable regardless of seasons, weather, environmental conditions and the like. The air cleaning apparatus brings air to be treated into contact with a cleaning solution including active oxygen species to purify the air to be treated includes a water tank which stores the cleaning solution, and a temperature controller which controls a temperature of the cleaning solution stored in the water tank. The temperature controller includes a heat exchanger as a cooling/heating unit which cools or heats the cleaning solution stored in the water tank, and controls the temperature of the cleaning solution into 0° C. or more to 40° C. or less.

Abstract: A general purpose of the present invention is to improve the ion conductivity of a catalyst layer used in a fuel cell. The catalyst layer includes a catalytic metal, a carbon particle, and an ion exchanger. The catalytic metal is carried on the carbon particle. The ion exchanger includes a first functional group capable of being adsorbed or bound to the catalytic metal, and a second functional group providing the ion conductivity. The ion exchanger is adsorbed or bound to the catalytic metal via the first functional group. The bond between the catalytic metal and the ion exchanger includes a covalent bond, a coordinate bond or an ion bond, etc.