Patent ID: 9634302
Date: 2017-04-25
CPC Classifications: H01M,Y02E

Claim:
1. A secondary battery module including a cell block in which a plurality of square batteries are layered, the secondary battery module comprising: a pair of end plates including a first end plate and a second plate arranged respectively facing one side and another side of the cell block in a layering direction; and a pair of side frames including a first side frame and a second side frame arranged to respectively face one side and another side in the cell width direction perpendicular to the layering direction of the cell block, each side frame including: wherein the cell block includes a cell holder that holds the square batteries, the cell holder including an intermediate cell holder disposed between the square batteries, the intermediate cell holder including first and second salient portions respectively inserted into the opening portions of the pair of side frames, and engaged with the pair of side frames at the one side and the another side of the cell block in the cell width direction, wherein each of the first and second end plates includes first and second protrusion portions respectively protruding toward the one side and the other side in the cell width direction, wherein the opening portion of the first side frame includes a first opening which is open from the first protrusion portion of the first end plate to the first protrusion portion of the second end plate, and the first protrusion portions of the first and second end plates and the first salient portion of the intermediate battery holder are inserted into the first opening, and the opening portion of the second side frame includes a second opening which is open from the second protrusion portion of the first end plate to the second protrusion portion of the second end plate, and the second protrusion portions of the first and second end plates and the second salient portion of the intermediate battery holder are inserted into the second opening.