Built for Safety, Powered for Performance
TWS Immersa Core™ is a highly effective method for battery system thermal control where battery components are immersed in hydrocarbon fluid, providing superior heat control, preventing overheating and thermal runaway.
Thermal runaway is a self-accelerating failure process in a battery cell.
When a cell fails, internal materials begin an exothermic (heat-releasing) reaction. As temperature rises, the reaction speeds up, generating even more heat. This positive feedback loop continues until the cell ruptures, releasing stored energy as heat and pressure.
If not contained, the heat can spread to neighboring cells, causing a chain reaction across the battery pack.
Immersion cooling surrounds cells with a thermally conductive dielectric fluid, enabling rapid and uniform heat removal.
By dissipating heat quickly enough to control a single failing cell, immersion cooling prevents thermal propagation — stopping a chain reaction before it spreads.
Thermal control is built into the battery housing—no external pipes or channels needed.
Pressure relief is built into the enclosure for added protection.
Airtight, moisture-proof construction ensures fluid performance and system reliability.
Compared to traditional cooling systems, Immersa Core™ is simpler, safer, and more efficient — effectively preventing thermal runaway and significantly extending battery life, making it ideal for Motive Power applications.
Compared with non‑immersion cooling, our immersion cooling solution keeps battery temperatures 3–8°C lower at both 0.5C /1C charge/discharge rates, delivering superior thermal stability, enhanced safety, and reliable high‑rate performance.
Immersion cooling battery modules demonstrate a 10% longer cycle life compared to conventional battery packs under -4C/+2C charge-discharge conditions.
The immersion-cooled module can achieve over 6,000 charge cycles while maintaining 70% State of Health (SOH).
In extreme weather conditions, low temperature for instance, battery cells need to be brought up to working temperature to properly and safely function. TWS Technology immersion-cooling battery system shows an outstanding performance of 2X faster heat-up rate compared to indirect liquid cooling.
No fire propagation was detected during nail penetration to the battery pack, causing it to undergo thermal runaway.
Immersion cooling battery packs maintain 10-15% cooler temperature, 5℃~8℃ lower compared to normal battery packs under 60A discharging test.
Compared with non‑immersion cooling, our immersion cooling solution keeps battery temperatures 3–8°C lower at both 0.5C /1C charge/discharge rates, delivering superior thermal stability, enhanced safety, and reliable high‑rate performance.
Immersion cooling battery modules demonstrate a 10% longer cycle life compared to conventional battery packs under -4C/+2C charge-discharge conditions.
The immersion-cooled module can achieve over 6,000 charge cycles while maintaining 70% State of Health (SOH).
In extreme weather conditions, low temperature for instance, battery cells need to be brought up to working temperature to properly and safely function. TWS Technology immersion-cooling battery system shows an outstanding performance of 2X faster heat-up rate compared to indirect liquid cooling.
