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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 generally made of aluminium as the main material and are mainly used in battery pack cooling solutions. It is a cooling method that is superior to air cooling. By transferring the heat from the cell to the two-phase coolant, combined with the internal channel circulation of the cold plate, localised heat dissipation from the cell is achieved and optimum charge and discharge performance is achieved.

water cooling plates design options

Trumonytechs caters for a wide range of customised water cooling plates. Our professional team will select the type of plate that matches your application according to your specific requirements, the common types of water cooling plates are: serpentine tubes, stamped liquid cooling plates, 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 advantages, for example the Snake Tube is a more compact, smallest micro-channel coil with space saving and lighter cooling applications, often used for cooling cylindrical battery packs. It 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

For these plate types, Trumonytechs‘ team has professionally designed and optimised the liquid flow path, flow balance, material compatibility, fluid stability, temperature uniformity weight and other aspects of the water cooling plate to meet the optimum cooling effect for different battery cooling systems. Of course, if you have any custom requirements, you can contact our engineers online for an online design.

Battery Cold Plate Working principle

A great number of heat will produce when battery cell works, if it is not treated efficiently or timely, the cells will go in an extremely unstable state. 

In this condition, liquid cooling is usually adopted to ensure the stable work performance of cells, thus the liquid cooling plates come out. As shown in the left picture, the heat of the cell will stepwisely transfer to the water cooling plates( solid conduction heat transfer from high temperature to low temperature )and then the coolant will run inside the channels to cool down the water cooling plate.

Trumonytechs’ technical team can assist you at every stage of the cooling design process, from initial design to virtual testing and detailed analysis.

Battery cooling efficiency comparison

Trumonytechs offers professional manufacturing of battery cooling plates. Our professional R&D team has optimised the design for prismatic battery packs. The maximum temperature of the battery cell, the outlet liquid temperature and the prismatic battery pack temperature have significantly improved, as shown in the comparison chart below.

We can improve the heat transfer capacity of the water cooling plate by redesigning the flow channel structure to increase the flow rate and heat transfer area, so as to meet the higher heat transfer needs.

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, it is important to maximise the efficiency and cost effectiveness of the cooling of the battery pack and to achieve the optimum design. Many experiments are required. Trumonytechs has extensive experience in cold plate design to achieve optimum thermal performance while reducing design and production costs. The following are some of the main dimensions that we test.

Trumonytechs advantages

Trumonytechs is an excellent partner from design to production and our thermal management experts provide not only cold plate design but also complete thermal management solutions.

Trumonytechs’ thermal management research team has been working on the design and research of cold plates for batteries and is committed to providing excellent cold plate designs that have solved many of the problems currently encountered with cold plates, such as the large pressure drops faced by conventional cold plates and meeting 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.


Battery cooling plate is a cooling system, usually made of aluminum. It is often used to install on both sides of the battery to lower the battery temperature and improve the stability and temperature uniformity of the battery by means of liquid cooling. To achieve fast charging performance of the battery.

The cold plate is a cooling component with many flow channel systems distributed internally, which absorbs heat from the heat generating parts into the internal cooling liquid and circulates it internally to the downstream heat sink for concentrated heat dissipation.

The role of the cold plate is to improve the overall battery life / and charging speed, because the battery charging and discharging will generate a lot of heat, will have a great impact on the battery life and range. The cold plate is developed and manufactured to solve this problem.

The liquid cooling plate adopts the mode of liquid cooling, which has high heat dissipation efficiency, and this heat dissipation efficiency is better than air cooling, which has higher heat dissipation efficiency. 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