Energy storage device

The energy storage device according to the present invention comprises: a first battery module in which a plurality of battery cells are arranged; a second battery module configured with a plurality of battery cells and configured to face the first battery module; a module screw extending in a front-rear direction in which the first battery module and the second battery module are disposed, and fastening the first battery module and the second battery module; an upper fixing bracket which is arranged on the upper side of the first battery module and the second battery module and fixes the first battery module and the second battery module; and a lower fixing bracket which is disposed on the lower side of the first battery module and the second battery module and fixes the first battery module and the second battery module. 本发明的储能装置包括：第一电池模块，配置有复数个电池单元；第二电池模块，配置有复数个电池单元，且配置成面向所述第一电池模块；模块螺钉，沿着所述第一电池模块和所述第二电池模块所配置的前后方向延伸，紧固所述第一电池模块和所述第二电池模块；上部固定托架，配置于所述第一电池模块和所述第二电池模块的上侧，固定所述第一电池模块和所述第二电池模块；以及下部固定托架，配置于所述第一电池模块和