As the demand for sustainable energy solutions grows, Battery Energy Storage Systems (BESS) have become crucial in managing and storing energy efficiently. This year, most storage integration manufacturers have launched 20-foot, 5MWh BESS container products.
The design of liquid cooling units aims to ensure that, starting at an initial temperature of 25°C, the batteries can undergo two cycles of charge and discharge at a 0.5C rate. After a four-hour charge-discharge cycle, the system rests for one hour before undergoing a second four-hour cycle.
However, each integrator’s thermal design varies, particularly in the choice of liquid cooling units, which come in different cooling capacities: 45kW, 50kW, and 60kW. Despite using the same 314Ah battery cells, why do these systems differ so significantly in liquid cooling unit selection? Let’s delve into the details.
The cooling unit must ensure the maximum temperature of the battery cells within the container does not exceed the threshold set by the battery manufacturer (such as 45°C or 50°C) at the end of these cycles. Operating battery cells above 35°C accelerates aging, resulting in faster degradation.
Our standardized container products are engineered for reliability, safety, and easy deployment. All systems include comprehensive monitoring and control systems with remote management capabilities.
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