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Water Cooling Plates(EV&ESS)

Trumonytechs EV/ESS water cooling plates

Trumonytechs water cooling plates, also known as liquid cooling plates, are primarily made from high-thermal-conductivity aluminum. They are mainly used in battery pack cooling solutions. It is a cooling method that is superior to air cooling. The heat is transferred from the cell to the two-phase coolant. This, combined with the internal channel circulation of the cold plate, achieves localized heat dissipation from the cell. It also achieves optimum charge and discharge performance and extending battery life.

water cooling plates design options

Trumonytechs offers a wide range of customized water cooling plates. Our professional team will select the type of plate that matches your application. They will do this according to your specific requirements. Common types of water cooling plates include serpentine tubes, stamped liquid cooling plates, and micro-channel liquid cooling plates.

Micro Channel Cold Plate-Water Cooling Plates(EV&ESS)
Micro Channel Cold Plate
Snake Tube-liquid cooling plates
Snake Tube
ESS prismatic battery pack heat tranfer stamping liquid cooling plate-Water Cooling Plates
Stamped Liquid Cooling Plates

Each cold plate design has its advantages. For instance, the Snake Tube is more compact, forming the smallest micro-channel coil. It saves space and is lighter, making it ideal for cooling cylindrical battery packs. It also provides excellent cooling results.

Cold Plate Types Microchannel Cold Plate Snake Tube Stamped Liquid Cooling Plates
Outline Envelope Dimensions 1020mm×800mm×53mm 230mm×90mm×45mm 1700mm×1200mm×35mm
Component Extruded Profiles + Quick Coonectors S-shaped Microchannel Tube+ Quick Connectors Stamping Runners+ Quick Connector
Material 3003 Aluminum Alloy 3003 Aluminum Alloy 3003 Alumiunum Alloy
Connection Method Brazing Brazing Brazing
Heat Flow Density Of Single Cell 7840w/m³ 3025w/m³ 9233w/m³
Temperature Difference Between Inlet And Outlet Liquid 2.5℃ 3.2℃ 3℃
Maximum Battery Cell Temperature 32℃ 36℃ 29℃
Customisation Options When The Heat Exchange Demand Is High, We Also Use Stamping + Fin Design

Trumonytechs’ team professionally designed and optimized the liquid flow path, flow balance, material compatibility, fluid stability, and temperature uniformity of the water cooling plate for different battery cooling systems. They also considered weight and other aspects to achieve the best cooling effect. Of course, if you have any custom requirements, you can contact our engineers online for design assistance.

Battery Cold Plate Working principle

A significant amount of heat is produced when a battery cell operates. If this heat is not efficiently or promptly managed, the cells can become extremely unstable.

Under such conditions, liquid cooling is usually adopted to ensure the stable working performance of cells. Hence, liquid cooling plates come into play. In the adjacent image, the heat from the cell will transfer step by step to the water cooling plates. This is solid conduction heat transfer from high temperature to low temperature. Then, the coolant will circulate inside the channels to cool down the water cooling plate.

Trumonytechs’ technical team is ready to assist you at every stage of the cooling design process. This includes initial design, virtual testing, and detailed analysis.

Battery cooling efficiency comparison

Trumonytechs specializes in the professional manufacturing of battery cooling plates. Our professional R&D team has optimized the design for prismatic battery packs. They have significantly improved it.

The comparison chart below illustrates the maximum temperature of the battery cell, the outlet liquid temperature, and the overall temperature of the prismatic battery pack.

We can enhance the heat transfer capacity of the water cooling plate by redesigning the flow channel structure. We can increase both the flow rate and the heat transfer area to meet higher heat transfer demands.

Maximum Temperature Of Battery Cell(New Design)-Water Cooling Plate
Maximum temperature of battery cell(New design)
Maximum Temperature Of Battery Cell(Old Design)-Water Cooling Plate
Maximum temperature of battery cell(Old design)
Outlet Liquid Temperature(New Design)-Water Cooling Plate
Outlet liquid temperature(New design)
Outlet Liquid Temperature(Old Design)-Water Cooling Plate
Outlet liquid temperature(Old design)
Prismatic Battery Pack Temperature After Improvement-Cooling materials
Prismatic battery pack temperature after improvement
Prismatic Battery Pack Temperature Before Improvement-Cooling materials
Prismatic battery pack temperature before improvement

Cold plate design and analysis

In the design and production of cold plates, maximizing the cooling efficiency and cost-effectiveness of the battery pack is paramount. Achieving the optimum design is also crucial, necessitating numerous experiments. Trumonytechs has extensive experience in cold plate design. They aim to achieve optimal thermal performance while minimizing design and production costs. The following are some of the main dimensions we test:

Trumonytechs advantages

Trumonytechs is an excellent partner from design to production. Our thermal management experts provide cold plate design. They also offer complete thermal management solutions.

Trumonytechs’ thermal management research team has been dedicated to designing and researching battery cold plates. We are committed to providing excellent cold plate designs. They have addressed many current challenges with cold plates, like resolving the large pressure drops faced by conventional cold plates and achieving higher thermal performance. We have designed and manufactured cold plates for many well-known companies.


customisable coolant flow paths for cold plate sizes

High heat dissipation

Redesigned flow path structure to ensure compliance with higher thermal conductivity requirements


Innovative battery cooling solutions support to effectively increase battery life and performance

Professional Team

Technical support from a team of PhD researchers from the University of Communications

Tamar Friedland

Trumonytechs have great expertise and during the communication process their engineers were able to understand my needs very quickly and provided professional advice on the customisation of the water cooling panels. I am very grateful that he is working on our project!

Darren Lepke

We were looking for a Cooling Plate Battery for our battery with an overall size of 850x610mm and I contacted Trumonytechs and worked with Oversea. She has done a great job in helping us with our project

Anne Fleshman

We wanted to supply a water cooling plate for our VDA355 Battery Modules customer, size of the plate would be 375x151mm and no more than 5mm in thickness and got in touch with Oversea at Trumonytechs. He did an excellent job, was very professional and quickly came up with a design drawing that was tested. I am very happy with our decision.


A battery cooling plate is a cooling system, usually made of aluminum. It is often used to install on both sides of the battery. This lowers the battery temperature and improves the stability and temperature uniformity of the battery using liquid cooling. To achieve fast charging performance of the battery.

The cold plate is a cooling component with many flow channel systems distributed internally. These channels absorb heat from heat-generating parts into the internal cooling liquid. Then, they circulate the heated liquid internally to the downstream heat sink for concentrated heat dissipation.

The cold plate improves battery life and charging speed. Charging and discharging generate heat, which greatly impacts battery life and range. The cold plate is developed and manufactured to solve this problem.

The liquid cooling plate adopts liquid cooling to achieve high heat dissipation efficiency. This efficiency is better than air cooling. It is a high-performance electric thermal management system.


We have one of the top thermal management professionals in China to help you solve your thermal management problems 7×24