A battery pack includes a first battery case accommodating a plurality of cells, and a second battery case laminated above the first battery case and accommodating a plurality of cells. The first battery case has a first through-hole on an upper surface. The second battery case has a second through-hole on a bottom surface which communicates with the first through-hole. The battery pack includes a communication port composed of the first through-hole and the second through-hole, a gas discharge valve which is provided only in either the first battery case or the second battery case and opens when internal pressure of the battery pack is higher than a predetermined value, and a temperature sensor provided on a gas flow path connected to the gas discharge valve.

A high voltage battery case assembly for a vehicle includes a battery case having a plurality of walls at least partially defining a cavity configured to receive one or more high voltage battery modules, a sacrificial pocket formed on an exterior of the battery case and including a thin-walled section, and an attachment bracket configured to couple between the sacrificial pocket and a body of the vehicle. The thin-walled section is configured to intentionally break away from the sacrificial pocket when the attachment bracket receives an impact load of a predetermined energy level to thereby facilitate protecting the high voltage battery case assembly from the impact load.

A mounting structure for a power storage device includes: a power storage device including a power storage stack and a housing case; a floor member; and a rear bracket. The housing case includes a lower case having a rear wall, and an upper case. The floor member is provided with an attachment portion for attaching the rear bracket. The rear bracket includes a front end portion and a rear end portion that is attached to the attachment portion. The power storage stack is disposed inside the housing case to provide a gap between the power storage stack and the rear wall. The front end portion of the rear bracket is fixed to the rear wall to be located between an upper surface and a lower surface of the power storage stack in an up-down direction.

A battery tray and a vehicle include a frame structure including a plurality of frames sequentially connected end to end arranged to be connected to the vehicle, and a base plate structure including an inner base plate and a reinforcing beam, wherein the inner base plate is located on an inner side of the reinforcing beam and arranged for mounting a battery module. The battery tray further includes a reinforcing block, wherein the reinforcing block is connected to a corresponding frame and the reinforcing beam in a matching mode, so as to fixedly connect the reinforcing beam to the frame structure through the reinforcing block. In the battery tray, the strength of the battery tray can be enhanced and a total weight can be decreased only by using the reinforcing block to fixedly connect the reinforcing beam to the frame structure.

An electric bus exhibiting a seat arrangement. The electric bus includes a side wall, a wheel with an electric engine disposed in the rim, a seat with a seat base and a leg area. The leg area is below the seat base and vertically level with the wheel. The electric bus also includes an electric energy storing device powering the electric engine of the wheel and arranged transversally between the side wall and the leg area of the seat.

A vehicle lower structure includes: a battery pack having first and second battery units and a battery cover; and a fuel tank that is arranged on a vehicle rear side to be higher than the first and second battery units. At positions under a floor panel, the first and second battery units are arranged on both sides in a vehicle width direction of a propeller shaft. The battery cover has a coupling section that couples first and second battery accommodation sections. The coupling section couples the first and second battery accommodation sections such that a vehicle rear side thereof is higher than the first and second battery accommodation sections, extends in the vehicle width direction at a position above the propeller shaft, and is arranged next to a vehicle front side of the fuel tank.

A vehicle-body structure comprises right-and-left front side frames and right-and-left frame members respectively extending forward from a vehicle-front portion of a battery case below the right-and-left front side frames. Plural right-side connection portions to connect the right-side frame member to the right-side front side frame are provided to be spaced apart from each other in a vehicle longitudinal direction.

A rear suspension cross member (4) is suspended from and supported by left and right side members (31, 3r) on a lower side of a floor (2) of a vehicle body, a drive unit (8) including a driving motor (9) is mounted on the rear suspension cross member (4), and a power supply unit (20) including a junction box (21) is mounted on an upper side of the floor (2). A framework member (43) is spanned between brackets (421, 42r) erected on the left and right side members (31, 3r) to support a rear part of a seat cushion (39a) of a rear seat (39), the framework member (43) is disposed at a position rearward of the power supply unit (20) and at a position forward of the rear end of the rear suspension cross member (4) by a dimension (L1), and is used to mitigate input from another vehicle in a rear end collision.

A battery pack includes a first battery module, a first battery case accommodating the first battery module, a second battery module, and a second battery case placed on an upper side of the first battery case so as to overlap each other and accommodating the second battery module. The second battery module is fixed to a fastening portion formed on a bottom surface of the second battery case and bulging downward. A hole portion for accommodating the fastening portion is provided on an upper surface of the first battery case at a position overlapping the fastening portion when viewed from above.

A vehicle-body structure prevents a submarine phenomenon of a passenger during a front-end collision and achieves lowering of the vehicle floor-height while maintaining a sufficient number of mounted batteries. Embodiments of a vehicle-body structure include a seat pan that is formed at part of a floor panel and on which a seat cushion is placed, and a battery arranged below the seat pan. A bulging portion that bulges upward is formed at a vehicle front-side of the seat pan. An accessory member is housed inside the bulging portion. An upper-end portion of the accessory member housed in the bulging portion 4 is positioned farther on the upper-side than a lower-end portion of the bulging portion 48a.