Abstract: A first voltage detection device (30) detects a voltage of a lead portion (150) folded back between different battery cells (100). The first voltage detection device (30) includes a first voltage detection portion (410), a first voltage detection line (420) electrically connected to the first voltage detection portion (410), and a first holding body (300) holding the first voltage detection portion (410) and the first voltage detection line (420).

Abstract: A battery module includes a plurality of battery cells and a function material. The function material is located between adjacent battery cells. The function material includes an elastic particle and a binder. The elastic particle is dispersed in the binder.

Abstract: A first voltage detection device includes a first holding body, a first voltage detection portion held by the first holding body, and a first conductor attached to the first holding body, at least a portion of the conductor being functioning as a fuse.

Abstract: A first voltage detection device includes a plurality of first voltage detection portions connected to a plurality of lead portions of a plurality of battery cells, a first holding body holding the plurality of first voltage detection portions, and an insulator provided at the first holding body, at least a portion of the insulator being located between the different lead portions.

Abstract: A first fuse device includes a first conductor, at least a portion of the conductor being functioning as a fuse, and a first wiring electrically connected to the first conductor. At least a portion of the first wiring passes through a first space of the first conductor, the first space being defining the fuse.

Abstract: A flat battery basically comprises a battery body, a plate-shaped member and an elastic member. The battery body includes a power generation unit and a case member encasing and sealing the power generation unit therein. The plate-shaped member is configured to be disposed between an outer periphery portion of the battery body and an outer periphery portion of an adjacent battery body stacked that is to be stacked on the battery body. The elastic member joins the battery body and the plate-shaped member to connect the battery body and the plate-shaped member, and covers at least part of the plate-shaped member. The plate-shaped member includes an exposed part which is exposed from part of an end surface of the elastic member which covers the plate-shaped member in a thickness direction of the battery body.

Abstract: A battery pack includes a first battery module and a second battery module arranged adjacent the first battery module so as to define an open space portion. Each of the first and second battery modules includes a case configured to house at least one single cell. Each case includes a wall portion including a vent through which an inside of the case is capable of communicating with an area outside the case, and a wall region without the vent. The vent disposed in the wall portion of the case of the first battery module opens toward the open space portion and toward the wall region of the case of the second battery module, when the first battery module is disposed adjacent to the second battery module.

Abstract: A stationary electric power system including a low profile secondary battery that includes a battery body including an electric power generating element accommodated in an exterior package member. The low profile secondary battery includes a spacer disposed between the battery body and other battery body when the other battery body is stacked on the battery body. The spacer fixes the battery body in a predetermined position. The battery body and the spacer are connected with each other through an elastic body.

Abstract: A combined battery (100) comprising a plurality of flat-type cells (10A to 10F) by laminating thereof so that polarity of electrode tabs (11A to 11F and 12A to 12F) is alternately set, wherein welding parts to connect in series the flat cells themselves, to compose a set when all the flat-type cells (10A to 10F) are laminated, are separated at a plurality of positions of the combined battery, and the flat-type cells having such a structure that all the flat-type cells are electrically connected in series by welding each of the welding parts.

Abstract: A battery pack includes a module stack body having a plurality of stacked battery modules; first and second connecting members each provided on the same surface of the module stack body in order to hold the stacked battery modules and extending in the stacking direction of the battery modules; a first reinforcing member fixed to the first and second connecting members at first and second fixed points; and a second reinforcing member fixed to the first and second connecting members at third and fourth fixed points. Orientation of the components along the stacking direction of the battery modules of vectors having respectively the first and third fixed points as a start point and the second and fourth fixed points as an end point are opposed to each other.

Abstract: A battery pack with improved assembly workability includes a plurality of battery modules stacked on each other, each provided with a case accommodating a unit cell and a through-bolt that penetrates a through hole formed in the cases along the stacking direction of the battery modules to connect the battery modules each other. The battery modules are further provided with an insertion auxiliary member that is inserted into at least one opening of the through hole, and the insertion auxiliary member has a tapered portion such that the inner diameter thereof gradually decreases towards the tip of the insertion auxiliary member.

Abstract: A battery pack includes a first battery module and a second battery module arranged adjacent the first battery module so as to define an open space portion. Each of the first and second battery modules includes a case configured to house at least one single cell. Each case includes a wall portion including a vent through which an inside of the case is capable of communicating with an area outside the case, and a wall region without the vent. The vent disposed in the wall portion of the case of the first battery module opens toward the open space portion and toward the wall region of the case of the second battery module, when the first battery module is disposed adjacent to the second battery module.

Abstract: A combined battery (100) comprising a plurality of flat-type cells (10A to 10F) by laminating thereof so that polarity of electrode tabs (11A to 11F and 12A to 12F) is alternately set, wherein welding parts to connect in series the flat cells themselves, to compose a set when all the flat-type cells (10A to 10F) are laminated, are separated at a plurality of positions of the combined battery, and the flat-type cells having such a structure that all the flat-type cells are electrically connected in series by welding each of the welding parts.

Abstract: A combined battery (100) comprising a plurality of flat-type cells (10A to 10F) by laminating thereof so that polarity of electrode tabs (11A to 11F and 12A to 12F) is alternately set, wherein welding parts to connect in series the flat cells themselves, to compose a set when all the flat-type cells (10A to 10F) are laminated, are separated at a plurality of positions of the combined battery, and the flat-type cells having such a structure that all the flat-type cells are electrically connected in series by welding each of the welding parts.

Abstract: A battery module includes a plurality of flat cells and a plurality of nipping plates. Each of the flat cells has a cell main body and at least one electrode tab. The cell main body includes a power storage element sealed in a package member. The electrode tab is electrically connected to the power generating member and protruding outwardly from the cell main body. The flat cells are stacked on one another such that the electrode tabs are electrically connected in a stacking direction. Adjacent ones of the nipping plates in the stacking direction nip the electrode tab and a portion of the cell main body of a corresponding one of the flat cells from both opposite side surfaces of the corresponding one of the flat cells along the stacking direction.

Abstract: Within outer cover member 111 of laminated film including resin layer 111c, there is installed electricity generating element 112 thereby to constitute battery body 11, peripheral portion 113 of the outer cover member being sealed. Spacer 12 is provided which has fixing portion 121 by which the battery body is fixed to predetermined position, the spacer being arranged between outer peripheral portion of the battery body and outer peripheral portion of another battery body put on the battery body. In range H1 that includes an overlapped portion 14 between the outer peripheral portion and the spacer and is provided at least around the fixing portion of the outer peripheral portion, there is provided elastic resin portion 13 produced through insert molding of elastic resin. This thin battery exhibits satisfied stability in set condition against vibration of motor vehicle. This thin battery exhibits satisfied fixing stability against vehicle vibration.

Abstract: A laminated battery formed by laminating a plurality of flat cells each having an electrode tab includes: an insulating member disposed to prevent a short-circuit in the electrode tab; and a terminal connected to the electrode tab, wherein a tip end side of the terminal is supported by a support member provided on the insulating member.

Abstract: A battery pack includes a module stack body having a plurality of stacked battery modules; first and second connecting members each provided on the same surface of the module stack body in order to hold the stacked battery modules and extending in the stacking direction of the battery modules; a first reinforcing member fixed to the first and second connecting members at first and second fixed points; and a second reinforcing member fixed to the first and second connecting members at third and fourth fixed points. Orientation of the components along the stacking direction of the battery modules of vectors having respectively the first and third fixed points as a start point and the second and fourth fixed points as an end point are opposed to each other.

Abstract: A battery pack with improved assembly workability includes a plurality of battery modules stacked on each other, each provided with a case accommodating a unit cell and a through-bolt that penetrates a through hole formed in the cases along the stacking direction of the battery modules to connect the battery modules each other. The battery modules are further provided with an insertion auxiliary member that is inserted into at least one opening of the through hole, and the insertion auxiliary member has a tapered portion such that the inner diameter thereof gradually decreases towards the tip of the insertion auxiliary member.

Abstract: A module terminal includes a terminal main body which is made of a metal plate and an insulative interference preventive member which is mounted on the terminal main body. In the terminal main body, one end portion is connected electrically to an electrode of a battery pack, and a female screw portion is formed integrally on a terminal portion to penetrate therethrough. While a distal end of a male screw faces an end face of the battery pack when the male screw into the female screw portion, the interference preventive member is disposed therebetween.