A EV battery liquid cooling cold plates is a precision thermal management component that removes heat from high-power electronic devices by circulating liquid coolant through internal channels, achieving 10-25x better heat transfer than air cooling.
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Leak Tested
ToneCooling designs and manufactures EV battery liquid cooling cold plates for electric vehicle battery packs, inverters, and onboard chargers. Our cold plates are engineered for OEM thermal management programs requiring high heat dissipation, leak-free performance, and lightweight construction across high-volume production environments.
From single prototype to mass production, ToneCooling supports the full product lifecycle of EV thermal management components.
Why EV Battery and Inverter Systems Require Liquid Cooling
Electric vehicle powertrains generate concentrated heat loads that degrade battery cell performance, reduce cycle life, and create thermal runaway risk if not managed precisely. Inverters and IGBT modules face similar challenges — peak switching losses can exceed 5kW in a compact package.
EV battery liquid cooling cold plates solve these challenges by:
- Maintaining battery cell temperatures within the 15°C–35°C optimal operating window
- Extracting heat uniformly across large battery pack footprints to prevent thermal gradients between cells
- Dissipating IGBT and power module heat loads of 3kW–20kW+ per inverter unit
- Enabling fast-charging compatibility by managing the elevated heat generation during high C-rate charge cycles
- Reducing system weight compared to traditional heat sink assemblies through aluminum construction
ToneCooling’s cold plates are designed from the ground up for EV powertrain environments — vibration resistance, pressure cycle durability, and compatibility with ethylene glycol-water coolant systems are standard requirements, not options.
Products: EV Battery and Inverter Cold Plates
Battery Pack Liquid Cooling Cold Plates
Our battery pack cold plates are manufactured in aluminum alloy 3003 or 6061, with internal flow channels optimized for uniform temperature distribution across the full cell array contact surface.
- Form factor: Flat plate, serpentine channel, or multi-pass parallel flow
- Joining method: Controlled atmosphere brazing (CAB) or friction stir welding (FSW)
- Coolant compatibility: 50/50 ethylene glycol-water (EGW)
- Operating pressure: up to 4 bar
- Leak test: 100% hydrostatic pressure test per unit
- Surface finish: Bare aluminum, anodized, or conversion coated
- MOQ: 5 pcs | Prototype lead time: 10–18 days
IGBT and Power Module Liquid Cooling Cold Plates
High-frequency switching in EV inverters generates localized heat flux that standard cooling approaches cannot handle. Our IGBT cold plates use pin-fin or micro-channel internal structures to maximize thermal contact with power module base surfaces.
- Heat dissipation capacity: 3kW–20kW per module
- Base material: Copper (C1100) or aluminum alloy (6061)
- Internal structure: Pin-fin array or parallel micro-channel
- Compatible with standard IGBT module footprints from Infineon, Semikron, Mitsubishi, and Fuji
- Pressure drop: engineered to system flow rate specification
Onboard Charger (OBC) and DC-DC Converter Cold Plates
Onboard chargers and DC-DC converters require compact, lightweight cold plates with precise mounting geometry. ToneCooling produces OBC cold plates in both aluminum and copper, with custom port locations and thread inserts to meet OEM assembly requirements.
- Compact form factors for space-constrained enclosures
- Integrated inlet/outlet fittings available
- Thread inserts and mounting bosses machined to drawing
Manufacturing Capabilities for EV OEM Programs
ToneCooling’s EV battery liquid cooling cold plates are produced using manufacturing processes proven in automotive thermal management supply chains.
- Base materials: Aluminum alloy 3003, 6061, 6063; Copper C1100, C1020
- Joining processes: Controlled atmosphere brazing (CAB), friction stir welding (FSW), vacuum brazing, diffusion bonding
- Secondary operations: CNC machining, leak testing, pressure cycling, surface treatment
- Quality standard: ISO 9001; PPAP documentation available on request
- MOQ: 5 pcs (prototype) / 50 pcs (pilot run) / 500+ pcs (series production)
- Prototype lead time: 10–18 business days
- Series production lead time: 4–6 weeks
All units undergo 100% hydrostatic leak testing before shipment. Burst pressure and pressure cycle fatigue testing available for OEM validation programs.
EV Application Coverage
ToneCooling supplies EV battery liquid cooling cold plates across a broad range of electric vehicle and electrification applications:
- Passenger EV battery packs — cell-level and module-level cooling plates
- Commercial EV and eBus battery thermal management systems
- Hybrid vehicle (HEV/PHEV) inverter and power electronics cooling
- Industrial AGV and forklift battery pack cooling
- Stationary energy storage (BESS) thermal management
- EV charging infrastructure — power electronics cooling for DC fast chargers
Why OEM Procurement and Engineering Teams Choose ToneCooling
Direct manufacturer. No trading company, no intermediary. Engineering communication goes directly to our technical and production team.
Drawing-based custom manufacturing. Submit your DXF, STEP, or PDF drawing and receive a detailed quotation within 48 hours. Every cold plate is built to your specification.
Automotive-grade process capability. CAB brazing and FSW joining processes used in our EV cold plate production are the same processes used in Tier 1 automotive supply chains.
Flexible volume support. From 5-piece prototype runs to series production of thousands of units per month, ToneCooling scales to your program timeline.
Global shipping. Export documentation, customs support, and shipping to North America, Europe, and Asia-Pacific included as standard.
Request a Quote for Your EV Cooling Project
Whether you are developing a new battery pack thermal system, qualifying a cold plate supplier for an OEM program, or sourcing production volumes — ToneCooling’s engineering team is ready to support your project from first prototype to full production release.
Submit your drawing or cooling requirements and receive a detailed quotation within 48 hours.
→ Request a Quote: https://tonecooling.com/request-quote/
Related: Custom Liquid Cold Plates | AI Server Cooling | EV Battery Cooling
CFD Simulation: EV Battery Pack & Cell-Level Liquid Cooling
Two simulation studies validate our liquid cooling solutions for EV battery applications. Study 1: A battery pack housing with four internal fin designs (conical, I-channel, L-channel, diamond) was compared under 50% glycol at 65°C inlet, 15 L/min. The diamond-fin AL6063 design achieved the lowest steady-state temperature (77.1°C max) and the best transient peak (101.0°C during a 1,228W pulse). Study 2: A 1P104S cell module (104 cells) with bottom cold plate at 0.5P charge rate achieved cell Tmax = 32.3°C and ΔT = 1.5°C at 12 L/min — well within BMS thermal requirements.
| Parameter | Value |
|---|---|
| Application | EV battery pack thermal management |
| Coolant | 50% Ethylene Glycol |
| Inlet Temperature (pack) | 65°C |
| Flow Rate (pack) | 15 L/min |
| Steady Power per Module | 369 W |
| Peak Transient Power | 1,228 W (1 min pulse) |
| Best Design (diamond AL6063) Steady Tmax | 77.1°C |
| Best Design Transient Tmax | 101.0°C |
1P104S Cell Module — Bottom Cold Plate Performance (0.5P Charge/Discharge)
| Parameter | Value |
|---|---|
| Cell Tmax @ 12 L/min | 32.3°C |
| Max Cell ΔT @ 12 L/min | 1.5°C |
| Cold Plate Pressure Drop @ 12 L/min | 37.7 kPa |
| Coolant / Inlet | 50% EG / 25°C |
Simulation performed using commercial CFD software. Results validated against experimental measurements. Contact ToneCooling for custom simulation and thermal design support.
Frequently Asked Questions
What is a ev battery liquid cooling?
A ev battery liquid cooling is a precision-engineered heat exchanger that uses liquid coolant flowing through internal channels to remove heat from high-power electronics, offering significantly higher thermal performance than air cooling. ToneCooling manufactures these for AI servers, data centers, EV batteries, and power electronics.
How does ToneCooling manufacture ev battery liquid coolings?
ToneCooling manufactures ev battery liquid coolings using vacuum brazing, friction stir welding, and CNC machining, with full in-house testing including pressure testing at 50 bar, helium leak detection, and thermal resistance measurement.
What materials does ToneCooling use?
ToneCooling uses 6061-T6 and 3003 aluminum alloys and oxygen-free copper (C11000). All materials meet RoHS compliance standards. Material selection depends on thermal conductivity requirements and coolant compatibility.
What is the minimum order quantity?
ToneCooling accepts orders from 1 piece prototypes to 10,000+ annual production. Prototype samples ship in 7-14 business days.
How do I get a quote for ev battery liquid cooling?
Submit your thermal requirements, dimensions, and flow rate specifications via our quote request form. Our engineering team responds within 24-48 hours with a detailed technical proposal.
Industry References & Standards
Request EV Battery Cold Plate Quote
- ✓ Prismatic, pouch & cylindrical cell support
- ✓ CAB & friction stir welding (FSW)
- ✓ PPAP Level 3 documentation available
- ✓ Automotive OEM qualified processes
Get EV Cold Plate Quote + PPAP Info →
ISO 9001 Certified · MOQ 5 pcs · Prototype in 7-15 Days · Free CFD Simulation
Need a Custom Liquid Cold Plate?
Tell us your thermal requirements. Engineering team responds within 48 hours with design proposal and quotation.
Request a Quote →MOQ 5 pcs • Prototype 7-15 days • ISO 9001 Certified
