Patent ID: 9219262
Filing Date: 2015-12-22
Classification: H01M,Y02E

Abstract:
1. An assembled battery comprising: a plurality of cells of cylindrical shape arranged in a plane including a diameter direction, each of the cells including a groove portion extending in a circumferential direction; and a fixing plate including an engagement portion engaging with each of the groove portions of the cells to fix the plurality of cells, wherein the cell includes a case of cylindrical shape and a power-generating element housed in the case, and wherein the groove portion is a protruding portion protruding inward in the case, and a gasket insulating one terminal electrode from the other terminal electrode is located at the protruding portion in the case, wherein the fixing plate includes a plurality of fixing plate opening portions, each of the plurality of cells being inserted into the plurality of fixing plate opening portions so as to engage the groove portion with the engagement portion, wherein the engagement portion is an elastically deformable hook portion protruding from a face of the fixing plate, the plurality of cells being placed on the face, wherein an end of the hook portion engages with the groove portion of the cell and the end of the hook portion is elastically deformed in a radial direction of the cell, so as to hold the cell.