BATTERY DEVICE

A battery device according to an embodiment of the present invention comprises a plurality of cell stacks electrically interconnected by connection members, a case containing the plurality of cell stacks therein, and support members disposed between the connection members and the case so as to support the case, wherein the support members may comprise: shock-absorbing bodies made of an insulating material and having first insertion grooves, into which the connection members are inserted, formed on first surfaces thereof; conductive wires inserted into second insertion grooves formed on second surfaces of the shock-absorbing bodies and electrically connected to at least one cell stack; and insulating covers coupled to the second surfaces of the shock-absorbing bodies.