Sanyo Electric Co., Ltd.

Yasuaki Uemura

Takuya Egashira

Shingo Ochi

Masato Koutari

The vehicle battery system includes a plurality of battery blocks including a plurality of battery cells and an exterior case that stores the plurality of battery blocks. The exterior case includes a tubular case in which the upper case is fixed to lower case, a pair of end face plates fixed to both ends of the tubular case to close the openings at both ends, and partition walls fixed to the middle portion of the tubular case. Lower case, the upper case, end face plates, and partition walls are made of pressed metal plates, lower case has a groove shape having side walls coupled to both sides of bottom plate, having coupling ribs coupled to an upper end edge of side walls, and having a same shape in a cross section at each portion separated in a longitudinal direction, the plurality of battery blocks are disposed in the longitudinal direction in an orientation extending in the longitudinal direction of the tubular case, and fixed to the exterior case, and the exterior case is further fixed to the vehicle via external fixing brackets.

Battery system including exterior case fixed to vehicle via external fixing brackets and vehicle equipped with battery system

Power supply device includes: a pair of end plates disposed on both ends in a stacking direction of battery stack constituted by stacking a plurality of secondary battery cells; and a plurality of fastening members fastening the pair of end plates together. Each of fastening members includes fastening main face having a flat plate shape and locking block fixed to a corner of fastening main face Each of end plates is formed with step that locks locking block while being fastened by fastening members, and has end plate screw hole opened near step. Each of fastening members has fastening side through hole opened so as to align with end plate screw hole while having each of end plates fastened, and has a fixing region fixing locking block to fastening main face disposed in a direction further away from each of end plates than fastening side through hole.

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Hyogo, Japan

Yasuaki Uemura