Air cooling or liquid cooling, which do you prefer?

Energy storage containers are portable energy storage devices that are often used for power backup. Thermal dissipation in energy storage batteries is a key factor in determining their performance, safety and lifetime. In order to maintain the temperature in the container at the normal operating temperature of the battery, the main heat dissipation structures of current energy storage container can be classified into two categories: air cooling and liquid cooling.

• The air-cooled system uses air as a cooling medium and uses convective heat exchange to reduce the temperature of the battery. The air-cooled system has the advantage of being simple in construction, easy to maintain and low in cost.  The disadvantage is that air has a low specific heat capacity and a very low thermal conductivity, which makes air cooling typically used in applications with low heat production rates.
• Liquid cooling systems use liquid as a cooling medium and carry away the heat generated by the battery through convective heat exchange. Its structural form: one or more bent water pipes buried within an enclosure wall. When in use, connect the inlet and outlet of the pipe to an external circulating water supply system. The circulating water supply system sends cold water to the pipes and flows through them.  The cold water flowing along the pipe absorbs the heat from the wall, which is dissipated by the battery. And then the cold water heats up, and the heated water returns from the outlet of the pipe to the circulating water supply system.

How do you choose between air and liquid cooling? The choice of power storage temperature control technology is the result of a comprehensive consideration of factors such as safety, economy, battery pack design, and the environment in which it is located, rather than a simple consideration of cooling performance.