EV Battery Cold Plate for Electric Vehicle Battery Packs
Ecotherm manufactures custom EV battery cold plates for electric vehicle battery modules and battery packs. We support aluminum liquid cooling plates, flow channel design, prototypes, leak testing, and production based on customer drawings.
Custom options: aluminum cold plates, stamped plates, brazed plates, CNC machined cold plates, tube embedded structures, and customized coolant channels.
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Custom EV Battery Cold Plates for Battery Pack Thermal Management
A battery cold plate is a liquid cooling component installed near battery cells or battery modules. It transfers heat from the battery pack to the coolant and helps keep cell temperature within a controlled range.
Ecotherm designs and manufactures custom battery cold plates for pouch cells, prismatic cells, and cylindrical cells. Each plate can be adapted to the cell layout, available space, coolant conditions, mounting method, and thermal target.
Why EV Battery Packs Need Liquid Cooling Plates
EV batteries generate heat during fast charging, high current discharge, and long driving cycles. Uneven heat removal may cause cell temperature imbalance, reduced performance, faster aging, or safety risks.
Liquid cooling plates are widely used in electric vehicle battery thermal management because they provide higher heat transfer efficiency than passive air cooling. A well-designed battery cooling plate improves temperature uniformity and supports stable battery operation.
Key Design Factors
- Battery cell layout
- Heat load and temperature target
- Coolant flow rate
- Pressure drop limit
- Flatness and contact surface
- Sealing and leak testing
EV Battery Cold Plate Design Options
Different battery pack layouts require different cooling plate structures. Ecotherm can review your drawing and suggest a practical structure before prototype or batch production.
Flat Aluminum Cold Plates
Suitable for large battery modules where weight, size, and cost must be controlled.
Stamped or Brazed Plates
Useful for thin cold plates, repeated flow patterns, and production-oriented designs.
CNC Machined Cold Plates
Good for prototypes, complex channels, low-volume projects, and design verification.
Friction Stir Welded Plates
Used for aluminum liquid cooling plates that require strong joints and reliable sealing.
Tube Embedded Plates
A practical option when a simple coolant path and stable contact surface are required.
Custom Flow Channel Plates
Designed around inlet position, outlet position, flow rate, pressure drop, and thermal target.
Materials for Battery Cold Plates
Aluminum is commonly used for EV battery cold plates because it offers a good balance of weight, thermal performance, cost, and corrosion resistance. Copper can be used for special high-performance areas, but it increases weight and cost.
| Material | Typical Use | Main Consideration |
|---|---|---|
| Aluminum alloy | Most EV battery cold plates | Lightweight, practical, cost-effective |
| Copper | High-performance or compact heat zones | Higher thermal conductivity, higher weight |
| Hybrid structure | Special thermal or assembly requirements | Needs careful process and material compatibility review |
Flow Channel Design and Thermal Performance
The internal flow channel affects heat transfer, temperature uniformity, coolant flow, and pressure drop. A simple channel may cause uneven cooling. A channel that is too complex may increase pump load.
Ecotherm can customize the flow path according to battery layout, inlet and outlet position, coolant flow rate, pressure limit, and thermal simulation requirements.
Common Channel Types
- Serpentine channels
- Parallel channels
- Multi-zone flow paths
- Embedded tube channels
- Custom machined channels
Manufacturing Methods for EV Battery Cold Plates
Ecotherm selects the manufacturing process according to structure, size, performance target, and order quantity. For prototype projects, CNC machining allows fast design changes. For production volumes, stamping, brazing, or welding may be more suitable.
CNC Machining
Flexible for prototypes, complex channels, and low-volume custom projects.
Stamping
Suitable for thin plates and production designs with repeated structures.
Brazing / Welding
Used for sealed liquid cooling structures and reliable coolant paths.
What Ecotherm Can Customize
Ecotherm manufactures EV battery cold plates according to your drawings, 3D files, battery pack layout, and thermal requirements.
- Cold plate size and thickness
- Flow channel layout
- Inlet and outlet position
- Mounting holes
- Surface flatness
- Material selection
- Coolant path design
- Surface treatment
- Sealing method
- Pressure rating
- Leak testing requirement
- Prototype or batch production
Quality Control and Leak Testing
Battery cold plates are installed close to battery cells and electrical components. Leakage, poor flatness, or weak bonding can affect battery pack safety and performance.
Testing requirements can be customized according to coolant type, working pressure, customer standard, and application environment.
Inspection Items
- Dimensional inspection
- Flatness inspection
- Surface inspection
- Pressure testing
- Leak testing
- Flow path inspection
What Information Do You Need to Provide?
To review or manufacture a custom EV battery cold plate, please send as much project information as possible. A drawing or 3D file is the best starting point.
- 2D drawing or 3D model
- Battery cell type
- Battery module layout
- Heat load
- Target temperature range
- Coolant type
- Coolant inlet temperature
- Flow rate
- Pressure drop limit
- Available space
- Mounting method
- Inlet and outlet position
- Material requirement
- Surface treatment requirement
- Prototype or production quantity
EV Battery Cold Plate Applications
Electric Vehicles
Battery packs and battery modules for passenger cars, electric buses, electric trucks, and special vehicles.
Energy Storage Systems
Battery cooling plates for ESS, battery cabinets, battery modules, and testing systems.
High-Power Battery Testing
Custom cold plates for battery development, validation equipment, and thermal testing platforms.
FAQ About EV Battery Cold Plates
What is an EV battery cold plate?
An EV battery cold plate is a liquid cooling plate used to remove heat from electric vehicle battery cells or modules. It transfers heat from the battery pack to the coolant and helps control cell temperature.
What material is used for battery cold plates?
Aluminum is commonly used because it is lightweight, cost-effective, and suitable for large battery pack structures. Copper can be used for special high-performance requirements.
Can Ecotherm make custom battery cold plates?
Yes. Ecotherm manufactures custom battery cold plates based on drawings, 3D files, battery pack layouts, and thermal requirements. We support prototypes and custom production.
What information is needed for a custom EV battery cold plate?
Useful information includes battery layout, cold plate size, heat load, coolant type, flow rate, pressure drop limit, material, surface treatment, and mounting method.
Can you support prototype production?
Yes. Ecotherm supports prototype and small-batch production. Customers can send drawings or design files for feasibility review before manufacturing.
How do I start a custom battery cold plate project?
Send your drawing, 3D model, or technical requirement to Ecotherm. Our engineering team will review the design and suggest a suitable manufacturing process and cold plate structure.
Send Your EV Battery Cold Plate Drawing for Review
Share your battery pack layout, drawing, 3D model, or thermal requirement. Ecotherm will review the feasibility and suggest a suitable cold plate manufacturing solution.