Battery module and battery

Abstract

A battery module and a battery, comprising at least one battery module. The battery module comprises plurality of battery cells, the battery cell comprising a terminal made of aluminium or aluminium alloy, and a busbar made of aluminium or aluminium alloy, the busbar being arranged for interconnecting terminals in a same electrical polarity of said plurality of battery cells in an electrically conductive way. The busbar is further arranged for connecting the plurality of battery cells to an electrical conductor element made of copper or copper alloy. The busbar comprises a purposely passivated surface.

Dependencies are inferred from the claim text.