Heat dissipation plate, battery assembly, battery device and power utilization system

The utility model relates to a heat dissipation plate, the heat dissipation plate is provided with at least one air cooling channel and at least one liquid cooling channel, the air cooling channel is provided with an air inlet end and an air outlet end, the air inlet end is suitable for air inflow, and the air outlet end is suitable for air outflow; the liquid cooling channel is provided with a liquid inlet end and a liquid outlet end, the liquid inlet end is suitable for liquid inflow, and the liquid outlet end is suitable for liquid outflow. According to the heat dissipation plate, compatibility of air cooling heat dissipation and liquid cooling heat dissipation can be achieved, the structure is simple, and the manufacturing cost is low. The utility model further provides a battery assembly, a battery device and a power utilization system.