Stamped Brazed Liquid Cold Plate | High Uniform Temp EV & ESS Battery Cooling Plate

Our stamped brazed liquid cold plate is a premium thermal cooling component engineered for new energy vehicle packs and grid energy storage systems. Fabricated via precision aluminum stamping + controlled atmosphere vacuum brazing, this liquid cold plate delivers ultra-even heat dissipation to eliminate battery hotspots, extending cell cycle life and improving pack safety.

Built to fit prismatic, pouch and blade lithium cells, this cold plate supports fully customizable parallel & series hybrid channel layouts to match your unique battery module geometry.

•   Superior Temperature Uniformity: Max-min temperature deviation ≤2℃ across full plate surface, ideal for fast charging battery packs
•   Ultra-High Sealing Reliability: Vacuum brazed integral structure, helium leak rate ≤1×10⁻⁷ Pa·m³/s, zero coolant leakage risk
•   Strong Pressure Resistance: Minimum 1.5 MPa burst pressure rating, stable under long-term coolant circulation & thermal cycling
•   Lightweight Optimized Design: 0.8–1.2mm thin aluminum base, low weight while retaining structural rigidity
•   Full Customization Freedom: Adjustable overall geometry, fluid port positions, internal fin patterns and channel flow networks
•   Corrosion Resistant Finish: Chromate-free passivation standard, optional anti-corrosion coating compatible with all water-glycol coolants

Trumony's cold plate is designed to solve supply chain challenges without cutting corners on performance:

· Speed of Stamping: Once the progressive die is set, channels are formed in seconds per plate. This allows us to ship thousands of identical, high-quality plates per month, keeping your assembly line moving.
· Predictable Cost Trajectory: Because stamping is a fast, low-labor process, unit economics improve naturally with volume. We pass this structure through with transparent, tiered pricing.
· Single-Process Validation: We use the exact same stamping tooling and sealing method for prototype samples as for volume production. The thermal performance data you gather from a sample is identical to what every production plate will deliver.
· Scalable Customization: We work with you to finalize channel routing and port placement before committing to the stamping die. Once the die is qualified, scaling up is simply a matter of scheduling production runs.

• The continuous brazed cold plate operates as a high-efficiency counterflow heat exchanger integrated directly into the heat source. Here is the thermal pathway in sequence:

  1. Thermal Collection: Heat generated by the semiconductor junction or battery cell surface migrates through a thin, high-conductivity thermal interface material (TIM) into the cold plate's precision-ground top face.
  2. Spreading & Conduction: The solid aluminum lid conducts heat downward into the internal fin field, where the continuous brazed joints ensure no thermal constriction occurs at the bond interface.
  3. Fluid-Side Convection: Coolant entering the inlet manifold is evenly distributed across hundreds of micro-channels or pin arrays. As the fluid velocity increases within these constricted pathways, the flow transitions from laminar to turbulent — dramatically increasing the convective heat transfer coefficient.
  4. Heat Rejection Loop: The heated coolant exits through the outlet manifold and travels to a remote Cooling Distribution Unit (CDU), where a liquid-to-air or liquid-to-liquid heat exchanger rejects the thermal energy to the ambient environment.
  5. Closed-Loop Return: Cooled fluid returns to the pump and reservoir, completing the circuit. The entire system operates under slight positive pressure to prevent air ingestion and cavitation.

 Application

• ⚡ Passenger & Commercial EV Battery Packs: Suitable for 800V high-voltage fast-charging platforms, meeting thermal management requirements under North American NACS/CCS charging standards.

• 🔋 Energy Storage Systems (ESS): Large-format stamped brazed plates for outdoor cabinet-type and containerized ESS, ensuring excellent temperature uniformity during prolonged charge/discharge cycles.

• 🧊 Extreme Climate Operation: Specifically designed for harsh North American (US/Canada) climates, with integrated PTC auxiliary heating functionality ensuring stable performance from -30°C to 55°C ambient temperatures.