Conductive element of battery and battery assembly using conductive element

The invention provides a conductive element of a battery. The conductive element is electrically connected with the battery. The conductive element comprises a first part, a second part, and a third part which is connected with the first part and the second part and is vertical to the first part and the second part, wherein the third part is provided with a buffer zone. Compared with the prior art, the conductive element of the battery has the advantages that: due to the buffer zone, the conductive element can still work normally when the distance between the adjacent batteries is changed.