There are five technologies available: air-cooled heat dissipation, liquid cooled heat dissipation, self cooled heat dissipation, solid phase change material heat dissipation, and heat pipe heat dissipation. The commonly used cooling technologies in the market are focused on air cooling and liquid cooling. Air cooling heat dissipation is a heat dissipation technology mainly based on air conditioning and duct cooling; Liquid cooling heat dissipation is a technology that uses cooling liquids such as water and ethylene glycol as the medium for heat dissipation. The liquid cooling technology route is widely used in fields such as power systems or transportation, and is a relatively mature technology. However, applying liquid cooling technology to energy storage systems, especially battery systems, is still a significant innovation.
Compared with traditional air cooling, the advantages of liquid cooling are obvious: higher heat dissipation efficiency and lower energy consumption, higher energy density, smaller temperature difference, and lower maintenance cost. By using liquids such as water or ethylene glycol as cooling fluid for heat conduction, the performance of circulating can remove excess heat from the battery system, improving the thermal stability and lifespan of the battery pack. In daily life, we are familiar with power banks, electric vehicles, etc., which all use energy storage liquid cooling temperature control technology.
