ELECTRICITY STORAGE BLOCK AND ELECTRICITY STORAGE MODULE

摘要

The present invention is devised to reduce compression reaction force from a thermally-conductive sheet acting on electricity storage elements. An electricity storage block is thermally connected to a heat transfer plate via an elastic thermally-conductive sheet. The electricity storage block includes: an element stacked body 11 in which a plurality of square electricity storage elements 101 is stacked and arranged such that wide surfaces 109w of the adjacent square electricity storage elements 101 are opposed to each other; and a pressing device that presses the element stacked body 11 toward the thermally-conductive sheet arranged on the heat transfer plate. The element stacked body 11 includes holders 160 and 170 having wide surface abutment parts 161 and 171 in abutment with one of the wide surfaces 109w in a pair in at least the predetermined square electricity storage element 101. The outer surfaces of the bottom plates 109b of the square electricity storage elements 101 are set as heat transfer surfaces thermally connected to the heat transfer plate via the thermally-conductive sheet. The heat-transfer surfaces protrude toward the heat transfer plate more than the end surfaces of the wide surface abutment parts 161 and 171 at the heat transfer plate side.