Phase Change Materials Are Sed In The Field Of Batteries (2)

Application of phase change materials in battery thermal management：

--Battery Thermal Management Strategy

• The formulation of battery thermal management strategy needs to comprehensively consider the working temperature range, thermal load, thermal runaway risk and cost-effectiveness of the battery.

Here are some common thermal management strategies:

1.Air cooling

• Suitable for battery systems with low heat load, dissipating heat through natural convection or forced convection.

2.Liquid cooling

• Circulate through liquid media (such as water or special coolant) to effectively absorb and disperse the heat generated by the battery.

3.Phase change cooling

• Use the characteristics of PCM to absorb and release heat in the phase change process to achieve stable control of battery temperature.

4.Heat pipe technology

• Use the efficient thermal conductivity of the heat pipe to quickly transfer heat from the battery to the cooling end.

5.Multi-level thermal management

• Combine the above technologies to form a composite thermal management scheme to adapt to different thermal loads and environmental conditions.

--Phase change material integration method

• The integration method of phase change materials directly affects its performance in battery thermal management.

The following are several strategies for integrating PCM:

1.Direct contact integration

• PCM is directly in contact with the surface of the battery to achieve heat exchange through heat conduction.

2.Microcapsule packaging

• PCM is encapsulated in microcapsules to improve its stability and safety in the battery system.

3.Composite structure design

• Composite PCM with high thermal conductivity materials (such as metal foam, graphene, etc.) to improve heat conduction efficiency.

4.Modular design

• Make PCM into a modular unit for easy installation, replacement and maintenance.

5.Active circulation system

• Combine PCM with active circulation system to achieve more efficient thermal management.

Performance optimization and case analysis:

• The goal of performance optimization is to improve the efficiency and reliability of PCM in battery thermal management.

The following are some performance optimization measures and case studies:

1.Material selection

• Select the appropriate PCM according to the working temperature and thermal load of the battery to ensure its effective phase change within the operating temperature range of the battery.

2.Thermal property optimization

• Optimize the thermal physical properties parameters by adjusting the formula of PCM or adding nano fillers, such as improving the thermal conductivity and phase change latent heat.

3.Structural optimization

• Optimize the geometric structure and distribution of PCM to achieve more uniform heat absorption and release.

4.Case study

• For example, in a study, by integrating paraffin-based PCM in a lithium-ion battery module, the maximum temperature of the battery was successfully reduced by 28% and the temperature uniformity was improved.

5.Experimental verification

• Test the effectiveness of different integration methods and optimization measures, such as monitoring temperature changes in the battery charge and discharge cycle, and evaluating the thermal management performance of PCM.

6.Numerical simulation

• Use numerical simulation technology to predict the performance of different thermal management strategies and provide guidance for design and optimization.

7.Long-term performance evaluation

• Evaluate the performance stability of PCM in long-term recycling, such as the retention rate of phase change latent heat and the change of thermal conductivity.

Through the above strategies and methods, phase change materials can be effectively applied to the thermal management of the battery, improve the performance and life of the battery, and ensure the safety of the system.

Company Profile:

• Sichuan Aishipier New Material Technology Co., Ltd. (referred to as "Aishipeier"), formerly known as Chengdu Xinhai Huicai Biotechnology Co., Ltd. Its founder was involved in the research and development of cold and hot materials in 1997. The product temperature ranged from -70℃, -50℃, -40℃, -25℃, -18℃, -12℃, -5℃, 0℃, 5℃, 10℃, 18℃, 20℃, 28℃, 35℃, 50℃, 60℃, 70℃, 90℃, 110℃, 180℃.
• In the early years, the products were widely used in biological products, reagents, microorganisms, food, industry, fisheries, animal husbandry The cold preservation, cold storage and cold chain transportation industry of precision instruments are synchronized with the research and development of cold storage technology, cold chain verification, scheme formulation, temperature detection, etc.
• In 2013, the company extended its product application to the repeated use of energy storage materials and phase change materials; the product expanded to new energy, energy storage batteries, etc. in the original application field. In this link, it is used as battery viscosity, thickener, curing agent, adhesive, ultra-high adhesive, suspension agent, etc. After more than 10 years of technology precipitation.
• The company has a strict quality ISO9001 management system. The products have passed the testing: Shanghai Chemical Research Institute test report, national dangerous chemical test report, Swiss SGS content non-toxic safety test, REACH test report, ROHS test report, etc.
• With the joint efforts of all employees of the company, the products have been successfully sold to the United States, Germany, Ireland, Japan, South Korea, Russia, Saudi Arabia and other countries and regions.

Sichuan Ashpier New Material Technology Co., Ltd.

Tel: 028-67933699 84906988

Email: xhhc@xhhc.net

Website: http://www.xhhc.cn

Hotline: 400-6463-400