Electricity storage device

摘要

An electricity storage device includes: a plurality of cells that are aligned in a predetermined direction; a pair of end plates that sandwich the plurality of cells in the predetermined direction; and a restraining member that extends in the predetermined direction, is fixed to the pair of end plates, and exerts a restraining force on the plurality of cells in the predetermined direction via the end plates. Each of the end plates includes a first plate and a second plate. The first plate has a plurality of ribs on a surface that faces the adjacent cell and is formed of insulating material. The second plate is fixed to the first plate on a side opposite to the surface that faces the adjacent cell and is formed of material stronger than the insulating material for the first plate.

主权项

1. An electricity storage device comprising:
a plurality of cells that are aligned in a predetermined direction; a pair of end plates that sandwich the plurality of cells in the predetermined direction; and a restraining member that extends in the predetermined direction, is fixed to the pair of end plates, and exerts a restraining force on the plurality of cells in the predetermined direction via the end plates, wherein each of the end plates includes a first plate and a second plate, the first plate having a plurality of ribs on a surface that faces the adjacent cell and being formed of insulating material, the second plate being fixed to the first plate on a side opposite to the surface that faces the adjacent cell and being formed of material stronger than the insulating material for the first plate, and the ribs for a closed space on a surface of the cell that is adjacent to the first plate.