Immersion liquid-cooled battery storage represents the next generation of energy storage technology. By combining a bidirectional PCS with an advanced immersion cooling battery system, it delivers superior thermal management, enhanced safety, and optimized energy performance.
High-Efficiency, Safer, and More Reliable Energy Storage Solution!
Excessive battery heat can trigger serious issues, including thermal runaway, posing safety risks and potential fire hazards. Effective thermal management is therefore essential to control temperatures, prevent overheating, and maintain optimal performance and efficiency.
Immersion liquid-cooled battery storage is an advanced thermal management solution where battery cells are fully submerged in a high-performance, electrically insulating coolant, delivering heat transfer efficiency several times higher than air cooling.
Compared to air-cooling or conventional liquid cooling, immersion liquid-cooled battery packs achieve faster heat dissipation and shorter response times, with temperature differences controlled within 2℃, ensuring more uniform and stable operation. This significantly reduces thermal stress and helps extend battery lifespan by over 20%.
Applied in energy storage systems, it enhances safety, reliability, and adaptability to complex environments, supporting stable operation across a wide temperature range of -30°C to 55°C.
Designed for demanding applications, this liquid-cooled battery energy storage system enables intelligent peak shaving, seamless micro-grid operation with millisecond-level response, and multi-energy optimization—ensuring stable, efficient, and reliable power under all conditions.
Immersion cooled BESS ensures high performance and operational stability, supports higher energy density and reduces thermal risks.
Businesses benefit from improved efficiency and reduced operating costs with a liquid cooled battery energy storage system.
In off-grid or remote environments, such as mining, construction, and island operations, liquid cooling energy storage delivers consistent performance even under harsh conditions.
Direct immersion cooling improves heat dissipation by over 50% compared to air-cooled systems;
Ultra-uniform temperature control with cell temperature differences ≤1°C;
Silent operation (≤20 dB) with no moving parts;
Dual heat dissipation paths through immersion liquid and integrated baseplate;
High thermal conductivity structure (≥200 W/(m·K)) for rapid heat transfer.
Electrically insulated coolant with breakdown voltage ≥50 kV/mm;
Flame-retardant and self-extinguishing fluid delays thermal propagation by ≥30 min;
Leak-proof, laser-welded structure prevents moisture ingress;
Up to 60% fewer components, reducing system failure points;
Long system lifespan up to 15 years;
Stable operation in extreme temperatures from -40°C to 85°C.
Minimal maintenance: coolant inspection required only every 5 years;
Low fluid loss (≤1% annually) with replacement cycle ≥6 years;
Anti-scaling coating eliminates cleaning requirements;
Reduced downtime and lower total cost of ownership.
Rated Energy:52.25 kWh
Rated Voltage:166.4 V
Charge/Discharge Rate:0.25P / 0.5P
Weight:400 kg
Protection Class:IP67
Dimensions: 927*275*1075 (W*D*H)mm
Rated Voltage :1331.2 V DC
Voltage Range 1164.8 ~ 1497.6 V DC
Rated Charge/Discharge Power 2.1 MW/2.5 MW
Operating Temperature Range:-30°C ~ 55°C
Noise :≤ 75 dB(A)
Protection Rating:IP55
| Model | EFS-4.2MWh | EFS-5.0MWh |
| Rated Voltage | 1331.2 V | |
| Rated Energy | 4.18 MWh | 5.015 MWh |
| Configuration | 10P416S | 12P416S |
| Voltage Range | 1164.8 ~ 1497.6 VDC | |
| Rated Charge/Discharge Power | 2.1 MW | 2.5 MW |
| Operating Temperature Range | -30°C ~ 55°C | |
| Operating Humidity Range | 0 ~ 95% RH (non-condensing) | |
| Storage Temperature Range | -35°C ~ 60°C | |
| Noise | ≤75 dB(A) | |
| Max. Altitude | 4000 m（Derating above 2000 m） | |
| Dimensions (W×L×H), mm | 2438×6058×2896 | 2438×7300×3000 |
| Weight | ≤35.5 T | ≤42.5 T |
| Communication Protocol | RS485, CAN, Ethernet, IEC61850 | |
| Protection Rating | IP55 | |
| Certificates & Reports | UL1973, UL9540A, UL9540，NFPA855, FCC Part 15B， IEC62933, IEC62477, IEC61000, UN3586 Same | |
| Environmental Compliance | ROHS, REACH | |
Contact SCU sales Team
SCU international Sales Center
Email: enquiry@scupower.com
Tel: 86-311-85903762
Fax: 86-311-85903718
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