Liquid-cooled energy storage battery

With increasing regulatory requirements and the push for sustainability, liquid cooling is rapidly becoming the preferred solution for battery energy storage systems. Companies investing in liquid-cooled air conditioners and advanced energy storage cooling systems will benefit from enhanced efficiency, improved safety, and long-term cost savings.

The above diagram illustrates how liquid cooling works in battery energy storage systems. The coolant circulates through cold plates attached to battery modules, absorbing heat and transferring it to an external refrigerant cycle, ensuring maximum efficiency.

This has accelerated the industry's shift toward liquid cooling solutions, which offer superior thermal management compared to traditional air cooling. With sustainability and high-performance applications becoming a priority, liquid cooling is emerging as the most effective technology for energy storage systems.

Liquid cooling-based battery thermal management systems (BTMs) have emerged as the most promising cooling strategy owing to their superior heat transfer coefficient, including two modes: indirect-contact and direct-contact. Direct-contact liquid BTMs, also referred to as immersion cooling systems, have garnered significant attention.

They found that the thermal management achieved through single-phase liquid cooling method can effectively and safely maintain desired temperatures within battery cells and modules. G. Satyanarayana et al. studied the immersion cooling performance of lithium-ion batteries using mineral oil and therminol oil.

A two-phase immersion liquid cooling system was established for large format Li-ion battery efficient heat dissipation. The maximum temperature and temperature variation in battery cell have been successfully limited at high discharge C-rates. The factors influencing the pool boiling in the cooling of Li-ion batteries were discussed.