Battery Internal communication through powerline and radio transmission using battery components as antennae

The present invention relates to a method for data transmission within a battery module (300) between at least one monitoring device in a battery cell (120) and a central battery module control device (140) with the simultaneous use of power line transmission (150) and radio transmission (152), wherein existing components the battery module may be used as required for a signal outputs and signal coupling antennas, and the geometrical shape and dimensions chosen for the transmission wavelengths are adapted to.