Abstract: A battery module, a power storage device, a power storage system, an electronic appliance, an electric vehicle, and a power system that can detect the voltage of a plurality of battery cells more accurately are provided. The power storage device includes a connection terminal portion which is coupled with terminal planes of a plurality of battery cells constituting battery columns. The connection terminal portion includes a coupling portion including a first coupling portion configured to couple at least with a first battery column and a second coupling portion configured to couple at least with a second battery column adjacent to the first battery column, and an extension portion extended from an end of the coupling portion in a longitudinal direction. The extension portion is provided at a predetermined position.

Abstract: A battery unit includes a box-shaped case in which a plurality of secondary batteries are stored and that includes a front face, a back face, a first lateral face, a second lateral face, a first main face, and a second main face, a first heat-transfer face that is provided on one faces of the first and second main faces of the case, a second heat-transfer face that is formed on at least one faces of the first and second lateral faces and is continued to the first heat-transfer face, and an insulating face that is formed on the front face, the back face, the other faces of the first and second main faces, and an inner face of the second heat-transfer face. In the battery unit, a battery element of the secondary batteries is stored in an outer package member and positive and negative electrode tabs are led out.

Abstract: There is provided a power storage system comprising a plurality of battery lines and a connection terminal unit. Each battery line comprises a plurality of battery cells arranged in a first direction. The connection terminal unit is electrically connected to terminal faces of each battery cell of a group of the battery cells, and the group of the battery cells is disposed in a second direction. At least one cut out is formed in the connection terminal unit. There are also provided a power storage system for a house, a power storage system for a vehicle, an electronic device and an electric vehicle including the power storage device. There is also provided a connection terminal unit for electrically connecting a plurality of battery cells, in which at least one cut out is formed in the connection terminal unit.

Abstract: Provided is a battery module including a plurality of stacked battery units. Each of the battery units is arranged in a manner that a face of a heat-transfer plate held by a battery support body formed from an insulating material and a main face of a battery cell oppose each other.

Abstract: A battery module is provided. The battery module includes a battery module comprising a plurality of battery units comprising a pair of terminals respectively; and a connector comprising insertion portions, wherein the pair of terminals are inserted into the insertion portions and the plurality of terminals are electrically connected to each other.

Abstract: A battery module, a power storage device, a power storage system, an electronic appliance, an electric vehicle, and a power system that can detect the voltage of a plurality of battery cells more accurately are provided. The power storage device includes a connection terminal portion which is coupled with terminal planes of a plurality of battery cells constituting battery columns. The connection terminal portion includes a coupling portion including a first coupling portion configured to couple at least with a first battery column and a second coupling portion configured to couple at least with a second battery column adjacent to the first battery column, and an extension portion extended from an end of the coupling portion in a longitudinal direction. The extension portion is provided at a predetermined position.

Abstract: A battery module is provided. The battery module includes a battery module comprising a plurality of battery units comprising a pair of terminals respectively; and a connector comprising insertion portions, wherein the pair of terminals are inserted into the insertion portions and the plurality of terminals are electrically connected to each other.

Abstract: There is provided a power storage system comprising a plurality of battery lines and a connection terminal unit. Each battery line comprises a plurality of battery cells arranged in a first direction. The connection terminal unit is electrically connected to terminal faces of each battery cell of a group of the battery cells, and the group of the battery cells is disposed in a second direction. At least one cut out is formed in the connection terminal unit. There are also provided a power storage system for a house, a power storage system for a vehicle, an electronic device and an electric vehicle including the power storage device. There is also provided a connection terminal unit for electrically connecting a plurality of battery cells, in which at least one cut out is formed in the connection terminal unit.

Abstract: A battery unit includes a battery cell that charges and discharges electric power; and a bracket that has an outer peripheral wall portion surrounding an outer peripheral side of the battery cell, and a support body which is provided inside the outer peripheral wall portion and supports the battery cell, wherein two battery cells are inserted from a front surface side and a back surface side of the bracket into the outer peripheral wall portion and are mounted on both side surfaces of the support body.

Abstract: Provided is a battery module including a plurality of stacked battery units. Each of the battery units is arranged in a manner that a face of a heat-transfer plate held by a battery support body formed from an insulating material and a main face of a battery cell oppose each other.

Abstract: A battery unit includes a box-shaped case in which a plurality of secondary batteries are stored and that includes a front face, a back face, a first lateral face, a second lateral face, a first main face, and a second main face, a first heat-transfer face that is provided on one faces of the first and second main faces of the case, a second heat-transfer face that is formed on at least one faces of the first and second lateral faces and is continued to the first heat-transfer face, and an insulating face that is formed on the front face, the back face, the other faces of the first and second main faces, and an inner face of the second heat-transfer face. In the battery unit, a battery element of the secondary batteries is stored in an outer package member and positive and negative electrode tabs are led out.

Abstract: A battery unit includes a battery cell that charges and discharges electric power; and a bracket that has an outer peripheral wall portion surrounding an outer peripheral side of the battery cell, and a support body which is provided inside the outer peripheral wall portion and supports the battery cell, wherein two battery cells are inserted from a front surface side and a back surface side of the bracket into the outer peripheral wall portion and are mounted on both side surfaces of the support body.