A laminated secondary battery that houses an electrode assembly and an electrolyte in an exterior body. In the electrode assembly, a positive and negative electrode laminate body including an electrode current collector and electrode multi-units having two or more electrode material layers formed on the electrode current collector with non-forming regions interposed between them is bent on the non-forming regions.

A battery includes first and second power generating elements laminated to each other. In the first power generating element, the inner layer of a first electrode current collector is in contact with a first electrode active material layer. In the second power generating element, the inner layer of a second electrode current collector is in contact with a second electrode active material layer. The outer layers of the first electrode current collector and the second electrode current collector are in contact with each other. The inner layer of the first electrode current collector contains a first material; the inner layer of the second electrode current collector contains a third material different from the first material; the outer layer of the second electrode current collector contains a second material different from the first material; and the outer layer of the first electrode current collector contains the second material.

A power storage device includes: a plurality of bipolar electrodes being stacked, each of the plurality of bipolar electrodes including a collector having a first surface and a second surface opposite to the first surface, a positive electrode layer provided on the first surface, and a negative electrode layer provided on the second surface; a first resin member provided on at least one surface of the first surface and the second surface in at least a portion of an outer peripheral portion of the collector; and a second resin member provided on the first resin member and supporting the outer peripheral portion of the collector via the first resin member. The respective first resin members for the bipolar electrodes adjacent to each other in a stacking direction of the plurality of bipolar electrodes are connected to each other by a welded portion.

A Rechargeable Metal-Air Battery Cell, a Battery Stack and Method of Manufacturing the Same A rechargeable metal-air battery cell, a battery stack and method of manufacturing the same are provided. The rechargeable metal-air battery cell includes a bipolar plate, an air cathode, a plenum frame and a metal anode. The bipolar plate defines a plurality of air channels. The air cathode abuts the bipolar plate such that the air cathode is in fluid communication with the air channels. The plenum frame includes a first major surface and a second major surface opposite the first major surface. The air cathode is adjacent the first major surface, and the metal anode is adjacent the second major surface of the plenum frame. The battery stack may include at least one rechargeable metal-air battery cell.

A non-aqueous electrolyte battery is provided with a bipolar electrode unit and an insulating layer including non-aqueous electrolyte. The insulating layer covers positive and negative electrode active material layers on both side surfaces of a current collector of a bipolar electrode of the unit. The unit is folded at every predetermined length to have flat portions arranged to face each other and bent portions arranged between the flat portions to connect the flat portions. A thickness of one part of the insulating layer of the electrode, the one part being positioned on an outer side surface of each bent portion, is set to be larger than a thickness of the other part of the insulating layer, the other part being positioned on each flat portion.

A battery includes: an electrode body including a positive electrode having a positive electrode active material layer formed on a positive electrode collector and a negative electrode having a negative electrode active material layer formed on a negative electrode collector. At one end of the electrode body, a positive electrode collector laminated part, in which a positive electrode collector exposed part is stacked, is present. At another end thereof, a negative electrode collector laminated part, in which a negative electrode collector exposed part is stacked, is present. The positive electrode collector laminated part and the negative electrode collector laminated part are divided into groups while the groups being shifted in position so as not to overlap on a same line in the stacking direction in the electrode body. The groups are mutually independently integrated in one unit, and all tip parts of the groups are joined with one collector terminal.

A method for reusing components of a battery (used battery assembly), such as a bipolar battery, to form another battery (reused battery assembly). The method may find use in allowing for a battery to be used, disassembled, recycled or reprocessed, assembled, and reused all within a single facility. A method for preparing a reused battery assembly including: a) disassembling a used battery assembly; b) salvaging one or more used components from the used battery assembly to provide for one or more reused components; and c) assembling a reused battery assembly with the one or more reused components.

A main object of the present disclosure is to provide a method for producing a power storage device wherein a molding failure hardly occurs when molding a resin member. The present disclosure achieves the object by providing a method for producing a power storage device, the method comprising: a preparing step of preparing a predetermined stacked member; a first placing step of placing a predetermined first mold; a first molding step of obtaining a predetermined nest B; a second placing step of placing a predetermined second mold; and a second molding step of molding a predetermined resin member.

Disclosed is a bipolar battery with which thermal deterioration of the electrode body due to the generation of heat of tabs can be suppressed. The bipolar battery of the present disclosure includes a first member, a second member, and a laminate electrode body arranged therebetween, wherein the laminate electrode body includes a first current collector constituting a lamination direction end surface, a second current collector constituting the other lamination direction end surface, at least one bipolar current collector arranged between the first current collector and the second current collector, and a plurality of power generating elements which are electrically connected in series via the bipolar current collector between the first current collector and the second current collector, the first current collector is arranged between the first member and the bipolar current collector, the second current collector is arranged between the second member and the bipolar current collector, the first current collector has a first tab, the second current collector has a second tab, an amount of heat generated by the first tab during energization of the battery is greater than an amount of heat generated by the second tab, the first member is a cooling member for cooling the first current collector, and a cooling performance of the first member is greater than a cooling performance of the second member.

A main object of the present disclosure is to provide a method for producing a power storage module capable of inhibiting interference of a nest and a frame body during arranging the frame body in a side surface of a layered member. The present disclosure achieves the object by providing a method for producing a power storage module, the method including a preparing step of preparing a layered member, and a frame body arranging step of arranging a frame body in a side surface of the layered member, wherein a frame body bonding jig and a position correcting jig are used in the frame body arranging step.