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EV Battery Thermal Management Solutions
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Image source: https://www.pexels.com/zh-tw/search/EV%20batteries/
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Cut down oil dependence and achieve net-zero emissions whilst the Covid-19 is still echoing around the world and supply chain capacity is tight, however, the EVs market remains intact and grows remarkably.
The sales of EVs including electric vehicles, plug-in hybrid vehicles, hybrid vehicles) accelerates despite the pandemic. According to an EV volumes report, global EVs sales reached 6,75 million units in 2021, a surge of 108 % more than in 2020.
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EVs Market Share |
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To win the market share, major automobile factories are developing advanced smart EV systems, while the heart of the EV, battery technology, will play a critical factor. A quality battery must have a high energy density, long life, fast charging speed, safety, and competitive price
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The Battery |
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Thermal management of battery technology has evolved into one of the most important elements in the EVs design process. The battery takes out a huge part of the EV structure and it’s mostly placed under the floor inside a car’s chassis. Fossil-fueled car battery takes around 5
to 10 mins to warm up whereas 1 to 3 mins for EV, and
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EV battery produces hundreds of watts during that window. Also, battery is connected to electricity to articulate components and systems in the vehicle which generate heat, therefore it’s extremely essential to dissipate heat and maintains an optimum operating temperature 24/7, all year around.
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Thermal Solutions for Battery
The most popular thermal solutions for battery packs are nothing more than air cooling and liquid cooling.
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Air cooling uses the principle of convection. As airflow goes through the surface, it will carry away the heat generated by the pack. Air cooling is simple and easy, but not able to cool down the battery pack in a short period.
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Liquid Cooling
Liquid cooling is widely adopted for the battery pack due to higher heat conductivity and heat capacity compared to air cooling, and it performs efficiently. It is often one-way convection with a circulative channel, refrigerant of high thermal conductivity (such as water, ethylene glycol mixture, etc.), and indirectly contacts the battery pack to take away the heat. However, the complex structure also adds a lot of weight to the whole system.
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Zaward provides air cooling and liquid cooling thermal management solutions based on customized requirements from the beginning design to the completed thermal module.
Besides battery thermal management solutions, Zaward’offers comprehensive product lines of thermal solutions. From DC/AC fan, diversified processes of heat sink, to peripheral components such as heat pipes, fan guards, and thermal pads. Zaward’s products are widely applied in 5G, AI, Server, Solar energy, medical, LED lighting, military, and more. We are always well prepared to solve any cooling issues with our best passion for customers worldwide.
For more product details, please feel free to visit our website. Any inquiries about thermal solutions are welcome. If you have any questions, please contact us. Any topics you want to know more about, share your thoughts with us.
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With best regards,
ZAWARD CORPORATION
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Carmen Chen/ Managing Director
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© 2022 ZAWARD CORPORATION.
5F.-4, No.130, Jiankang Rd., Zhonghe Dist., New Taipei City 23585, Taiwan
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