Battery module and power supply module

The utility model relates to a battery module and a power supply module. The battery module comprises a plurality of power supply layers which are sequentially stacked and sequentially connected in series, each power supply layer comprises a plurality of groups of battery components which are connected in series, and each group of battery components comprises a plurality of battery cells which are connected in parallel; each support assembly is used for fixing one power supply layer, and the two sides of each support assembly can be connected with the other support assembly; the conductive parts are used for connecting two adjacent battery assemblies in series and/or connecting a plurality of battery cells in each battery assembly in parallel; and the insulating part is attached to one side, relatively deviating from the battery core, of the conductive part and covers all the conductive parts on the same side. Through the arrangement, the space is fully utilized, the energy density of the battery module is im