Energy Storage Liquid Cooling System

The energy storage liquid cooling system adopts a fully enclosed pipeline design, which is applied to the temperature rise and fall and constant temperature control in the test of new energy batteries and motors, especially suitable for the process control of heat demand and heat release during the test process. The energy storage liquid cooling system can not only control the temperature, but also control the flow and pressure. It can realize experiments on battery packs in high and low temperature environments, and provide high temperature, low temperature, control flow, pressure and other requirements for the battery pack.

At present, the cooling methods of electric vehicles mainly adopt air cooling, liquid cooling, heat pipe cooling, phase change material cooling and so on. Air cooling is still the main method, and air cooling is relatively easy to implement, but the cooling effect is not good.

1. The air-cooling system is that when the temperature is too high, the energy storage liquid cooling system is required to drive the fan to reduce the temperature in the battery pack. In the design of the air-cooling system, the most important design lies in the design of the cooling air duct of the battery box and fan selection.

2. Liquid cooling components include water cooling pipes, cooling pumps, cooling valves, and cooling plates. The cooling plate is one of the key components in the liquid cooling system of the battery pack, and the selection of the cooling plate is very important. When the temperature is low, the available capacity of the battery will rapidly decay. Charging the battery at a too low temperature may cause instantaneous voltage overcharging and cause a short circuit.

3. Liquid cooling is the current mainstream cooling method. In a general-purpose battery module, there is a cooling fin between every two cells, and the cooling fin is connected to the cooling plate. Phase change cooling is a way of using materials to change between solid-liquid-gas three-states, absorbing heat when the heating element is working, and dissipating heat when it is not working.

The heat-related problems of the energy storage liquid cooling cooling system are the key factors that determine its performance, life and cost of use, and of course it will directly affect its energy and power performance in use.