Abstract: A secondary battery includes: a cathode; an anode; an electrolytic solution; and an interlayer provided between the cathode and the anode and including one or more of a polyphosphate salt, a melamine salt, a melamine derivative represented by Formula (1), a metal hydroxide, and a metal hydrate, the interlayer partially entering into the cathode, the anode, or both. (R1 to R6 are each one of a hydrogen group (—H), a monovalent hydrocarbon group, a monovalent hydroxyl-group-containing hydrocarbon group, a monovalent group obtained by bonding one or more monovalent hydrocarbon groups and one or more oxygen bonds (—O—), a monovalent group obtained by bonding one or more monovalent hydroxyl-group-containing hydrocarbon groups and one or more oxygen bonds, and a monovalent group obtained by bonding two or more thereof.

Abstract: A separator is provided. The separator includes a base layer and a surface layer, wherein the surface layer is on at least one side of the base layer, and wherein the surface layer is structured so as to collapse at time of charging to prevent damage to a negative electrode due to expansion thereof. A battery including the separator is also provided. An electric device, an electric vehicle, and an electrical storage device including the battery are further provided.

Abstract: An external packaging material for covering a battery device is provided. The packaging material includes a laminated film having a laminated structure having two or more resin film layers stacked. In the external packaging material, the laminated structure has no metallic foil, and at least one layer in the resin film layers contains a moisture absorbing material.

Abstract: A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Abstract: A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Abstract: An external packaging material for covering a battery device is provided. The packaging material includes a laminated film having a laminated structure having two or more resin film layers stacked. In the external packaging material, the laminated structure has no metallic foil, and at least one layer in the resin film layers contains a moisture absorbing material.

Abstract: A separator is provided. The separator includes a base layer and a surface layer, wherein the surface layer is on at least one side of the base layer, and wherein the surface layer is structured so as to collapse at time of charging to prevent damage to a negative electrode due to expansion thereof. A battery including the separator is also provided. An electric device, an electric vehicle, and an electrical storage device including the battery are further provided.

Abstract: In a laminated external packaging material for a battery according to the present invention, a metallic foil 2 is adhered to one surface side of a base film 1, and a coated film layer 4 of thermal adhesive resin having a softening point of 160° C. or below and capable of thermally bonding to a surface film of a battery main body is formed on the other surface side of the base film 1. With this laminated external packaging material for a battery, without using an adhesive tape or a hot-melt adhesive, this packaging material can be easily and assuredly bonded to the battery main body and also can be bonded firmly to an end portion reinforcing plastic component.

Abstract: A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Abstract: A highly safety cell is provided in which short-circuiting is unlikely to occur. In order to prevent short-circuiting, for example, burrs generated when a laminate film used as an exterior packaging material is cut are prevented from penetrating an interior resin layer of the laminate film. When an electrode terminal extension side of the laminate film is thermal welded, heating and compression are performed by a heater head on a part of the laminate film apart from the edge portion thereof so that the thickness of the above edge portion is larger than that of a thermal welded portion. In addition, thermal welding is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal, and as a result, short-circuiting can be more effectively prevented.

Abstract: A battery pack includes a non-aqueous electrolyte secondary battery, a rigid covering member, and a protection circuit board. The secondary battery includes a battery element and a flexible covering member formed of a first laminated film composed of a first heat-bonding layer, a first metal layer, and a first outer covering layer laminated successively. The flexible covering member is sealed along around the battery element while leaving electrode terminals of the positive and negative electrodes extended outside the battery element. The rigid covering member is formed of a second laminated film composed of a second heat-bonding layer, a second metal layer, and a second outer covering layer laminated successively. The flexible covering member and the rigid covering member are bonded with an adhesive strength equal to or higher than atmospheric pressure and with a peel strength equal to or lower than a breaking strength of the flexible covering member.

Abstract: A battery pack is provided.

Abstract: Disclosed is a nonaqueous electrolyte battery including a battery element contained in an outer covering member composed of a laminated film and sealed therein by heat seal, and a gas absorbable material interposed between the outermost layer of the outer covering member and the battery element. Such a battery is advantageous in that even if gas occurs in the battery element, the laminated film as the outer covering member is prevented from being swelled.

Abstract: A battery pack includes a non-aqueous electrolyte secondary battery, a rigid covering member, and a protection circuit board. The secondary battery includes a battery element and a flexible covering member formed of a first laminated film composed of a first heat-bonding layer, a first metal layer, and a first outer covering layer which are laminated successively. The flexible covering material is sealed along around the battery element while leaving electrode terminals of the positive and negative electrodes extended outside the battery element. The rigid covering member covers the non-aqueous electrolyte secondary battery together with the flexible covering member, and is formed of a second laminated film composed of a second heat-bonding layer, a second metal layer, and a second outer covering layer which are laminated successively. The flexible covering member and the rigid covering member are bonded by melting the second heat-bonding layer without melting the first outer covering layer.

Abstract: In a polymer electrolyte battery including a battery element having a cathode and an anode coiled through a polymer electrolyte, a section of the battery element perpendicular to the coiling axis has a curved form. As compared with a polymer electrolyte battery having a flat plate type battery element curved, the former battery has an extremely low possibility of short-circuit at the end of an electrode and excellent battery characteristics.

Abstract: In a laminated external packaging material for a battery according to the present invention, a metallic foil 2 is adhered to one surface side of a base film 1, and a coated film layer 4 of thermal adhesive resin having a softening point of 160° C. or below and capable of thermally bonding to a surface film of a battery main body is formed on the other surface side of the base film 1. With this laminated external packaging material for a battery, without using an adhesive tape or a hot-melt adhesive, this packaging material can be easily and assuredly bonded to the battery main body and also can be bonded firmly to an end portion reinforcing plastic component.

Abstract: Provided is a battery capable of preventing the entry of water even if a sealing width is reduced. A battery element comprising a cathode and an anode is accommodated in a film-shaped casing. The casing includes a metal layer, a resin layer disposed on a side of the metal layer closer to the battery element with an adhesive layer in between, and a resin layer disposed on a side of the metal layer opposite to the side where the resin layer is formed with an adhesive layer in between. The adhesive layer has a water vapor transmission rate of 800 g/m2·day or less for a thickness of 25 ?m at 40° C. and 90% RH and a thickness of 10 ?m or less. Thereby, even if the sealing width is reduced, the entry of water into the battery can be prevented.

Abstract: A battery element is housed and sealed in a package body, and further, packed together with a connecting board and a frame by the package body. A laminate material for sealing the battery element is used as an outer package material of a battery pack. Thus, the increase of volume for the pack is reduced as much as possible.

Abstract: A battery pack includes a non-aqueous electrolyte secondary battery, a rigid covering member, and a protection circuit board. The secondary battery includes a battery element and a flexible covering member formed of a first laminated film composed of a first heat-bonding layer, a first metal layer, and a first outer covering layer which are laminated successively. The flexible covering material is sealed along around the battery element while leaving electrode terminals of the positive and negative electrodes extended outside the battery element. The rigid covering member covers the non-aqueous electrolyte secondary battery together with the flexible covering member, and is formed of a second laminated film composed of a second heat-bonding layer, a second metal layer, and a second outer covering layer which are laminated successively. The flexible covering member and the rigid covering member are bonded by melting the second heat-bonding layer without melting the first outer covering layer.

Abstract: A nonaqueous electrolyte battery that includes a unit cell and a battery case that encloses the unit cell. The battery case includes a laminate film that encloses the unit cells by heat welding at least a portion of the laminate film. Upon heat welding, the unit cell further includes a number of electrode terminal leads in which a portion of the electrical terminal leads extend from the battery case. A sealant layer is further applied to at least a portion of the electrode terminal leads so as to contact the battery case upon heat welding in order to further seal the case and to further prevent short circuiting of the nonaqueous-electrolyte battery.