Immersion Cooling Battery Storage
Our immersion-cooled battery systems submerge every cell in dielectric coolant — IP68 packs, cell-to-cell spread ≤2°C, -30 to 60°C operation, and ≥8,000-cycle system life — engineered for sites where fire risk is not an option.
How It Works
Cells are fully submerged in an insulating, flame-retardant coolant. That removes oxygen contact and absorbs heat directly at the cell surface — the ignition triangle loses two of its three sides. Single-phase immersion cools the entire cell area, holding pack-level temperature spread at ≤2°C, while sealed IP68 pack construction protects through transport and installation. Standard boxes: 1P36S with 280Ah or 314Ah cells, 115.2V, 32.3–36.2kWh; system-level building blocks scale to 225kWh cabinets and beyond.
Immersion vs Cold-Plate vs Air
| Mechanism | Immersion | Cold-plate liquid | Air |
|---|---|---|---|
| Cell surface coverage | 100% (full immersion) | Single face | Local airflow |
| Cell-to-cell spread | ≤2°C | Higher near outlets | Highest |
| Fire behavior | Coolant is dielectric and flame-retardant | Coolant at plate only | Air carries heat and oxygen |
| Wide-temperature operation | -30 to 60°C | Reduced | Restricted |
Comparison states mechanism differences only; per-site engineering decides the right choice. The 225kWh system ships ≥8,000 cycles @70% SOH EOL / 95% DOD / 25°C, efficiency >87% including auxiliary power, IP54 cabinet, C4 anti-corrosion.
Where It Earns Its Keep
- Oil and gas sites — see field systems operating since 2022.
- High-ambient and dust-heavy industrial zones.
- Dense commercial installs where thermal-event tolerance matters.
FAQ
How does immersion cooling prevent thermal runaway?
Cells are fully submerged in dielectric, flame-retardant coolant — removing oxygen contact and absorbing heat at the cell surface, so the ignition triangle loses two of its three sides.
Is immersion cooling better than cold-plate liquid cooling?
Cold plates cool one face; immersion cools the entire cell surface, holding spread ≤2°C and eliminating local hotspots.
What cycle life does it achieve?
≥8,000 cycles at 70% SOH EOL, 95% DOD, 25°C on the 225kWh system.
Does it work in extreme climates?
The design range is -30°C to 60°C, with coolant properties maintained across the range.