Immersion-Cooled Battery Pack

The immersion-cooled battery pack uses a specially formulated dielectric coolant that fully surrounds the battery cells, providing efficient thermal management and precise temperature control. During charging and discharging, the coolant absorbs heat from the batteries and transfers it to an external cooling circuit, helping maintain a stable operating temperature, improve performance, and extend battery life.
Compared with traditional air-cooling and conventional liquid-cooling systems, immersion cooling offers faster heat dissipation and thermal response. It also enhances system safety and reliability, supports operation in demanding environments, and enables more flexible deployment for a wide range of energy storage applications.

High-Efficiency Thermal Management

• Full-immersion heat transfer: The battery module is fully immersed in highly insulating, flame-retardant coolant, improving heat dissipation efficiency by more than 50% compared with conventional air cooling.
• Low-noise, low-energy operation: The design uses no moving circulation components, with a noise level below 20 dB and no extra energy consumption from forced circulation.
• Uniform temperature control: The coolant remains in full contact with the battery, keeping local hotspot temperature differences within 1°C to help prevent capacity degradation.
• Dual heat dissipation path: An aluminum alloy microchannel water-cooled baseplate is integrated at the bottom of the module, forming a combined immersed liquid cooling and baseplate heat dissipation structure.
• Structural and thermal integration: The integrated die-casting process improves thermal conductivity to ≥200 W/(m·K) and enhances impact and vibration resistance.
• Standardized interfaces: The baseplate inlet and outlet can connect directly to the water-cooling loop of the energy storage system.

Comprehensive Safety

• Electrical insulation protection: The coolant provides electrical insulation with a breakdown voltage of ≥50 kV/mm, helping reduce short-circuit and fire risks.
• Flame-retardant protection: The self-extinguishing coolant can delay thermal propagation by at least 30 minutes.
• Leak-resistant design: Static structure and laser-welded sealing help prevent coolant leakage and water vapor ingress.

Low Maintenance & Cost

• Minimal routine maintenance: The coolant dielectric constant and viscosity only needed to be checked every five years.
• Low coolant loss: Annual coolant loss is ≤1%, with a replacement cycle of at least six years.
• Minimal cleaning: The anti-scaling coating helps prevent scale buildup, so baseplate cleaning is not required.

High Reliability

• Fewer failure points: The battery pack is built without vulnerable components, reducing failure points by 60% and achieving an MTBF ≥50,000 hours.
• Corrosion resistance: Compatible with the battery casing and terminals, with a service life of up to 15 years.
• Wide temperature adaptability: Ensuring a stable operation across -40°C to 85°C, suitable for extreme climates.

Flexible Deployment

• Module compatibility: Supports multiple battery types.
• Scenario adaptability: Suitable for different installation scenarios.
• Modular expansion: A single module can operate independently, or multiple modules can be connected in parallel for large-scale deployment.