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SAFE | RELIABLE | FAST-CHARGING

Rovilus’ thermal management solution has helped clients in overcoming key technical barriers in battery overheating problem, while providing increased efficiency, performance and safety for the battery operators. 

Rovilus’ thermal management solution is predominantly used in high power applications such as material handling equipment to enhance the performance of the vehicles, or under extreme climate conditions to ensure safe operation of the vehicles or stationary storage systems. 

Over Heating Problem

Lithium-ion batteries are widely used in electric vehicles (EVs) and energy storage systems due to their high energy density and long cycle life. As the performance and lifetime of lithium-ion batteries are very sensitive to temperature, it is important to maintain the proper temperature range and regulate heat that may be generated by the battery cells during normal operation. Rovilus’ proprietary thermal management system addresses this problem by regulating increase in cell temperature increase that would lead to cell degradation, reduction in lifetime, safety issues and potential thermal runaway. 

Working Principles

Rovilus’ uses active and passive cooling methods to resolve the overheating problem. Each of our standard battery modules is integrated with our patent-pending thermal management solution, which consists of a proprietary phase change material and liquid tubing design that regulates the temperature in the battery module. 

Rovilus’ proprietary thermal material is melted and poured directly into the battery module, submerging the battery cells and liquid tubing system into the material. As the material cools, it soalidifies and wraps around each battery cell, providing additional stabilization and anti-vibration benefit to the battery modules. 

When the batteries start to operate, the thermal material takes away heat energy emitted from the battery cells, which causes the material to phase-change and liquify. The liquid-cooling system takes away heat from the material and the material cools and solidifies again. This allows the temperature of the battery module to be kept at its optimal temperature range, and decreases rate of cell degradation significantly. The material also prevents fire propagation effectively and allows the batteries to operate under high C-rate.