Home Electric Vehicle Charged EVs | Freudenberg Sealing’s new custom-made 3D thermal limitations for EV batteries

Charged EVs | Freudenberg Sealing’s new custom-made 3D thermal limitations for EV batteries

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Charged EVs | Freudenberg Sealing’s new custom-made 3D thermal limitations for EV batteries

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Thermal runaway—the ignition or explosion of a battery cell brought on by a self-reinforcing heating course of—may be brought on by a variety of inner and exterior components, reminiscent of overcharging, extreme discharging, injury, or heating of the battery. Thermal runaway releases not solely flames and sizzling gases but in addition electrically conductive particles. These in flip may cause thermal propagation in adjoining cells and result in brief circuits.

Battery-makers are steadily growing the power density of their batteries, and Freudenberg Sealing Applied sciences tells us that this may increasingly really enhance the chance of thermal runaway. Freudenberg has developed thermal limitations that assist to decelerate thermal runaway by growing resistance to propagation.

“What is totally new is that the thermal limitations are actually additionally accessible in custom-made, versatile 3D geometries, which makes it attainable to make use of them in numerous positions throughout the battery and permits for integration of further parts,” says Andrew Espinoza, World VP Know-how of the Oil Seals Powertrain & Driveline Division at Freudenberg.

Along with the present two-dimensional limitations, reminiscent of flat mats and thermal blankets, customer-specific 3D geometries may be produced in quite a lot of high- and low-volume manufacturing processes, reminiscent of injection molding and steady extrusion.  Profile seals, module separators and covers—together with these for bus bars, cooling strains or electrical parts—are a couple of of the merchandise at the moment being produced. Freudenberg  says the complicated 3D geometries are light-weight and have minimal impression on the battery’s general weight.

“The three-dimensional thermal limitations and the utilized supplies have gone via in depth testing that exceeds the required requirements,” says Andrew Espinoza. “They’ve confirmed their excellent efficiency and reliability on bench checks in addition to battery system testing. The merchandise meet the best high quality requirements, are licensed pursuant to UL 94 V-0 and are already getting used efficiently in preliminary sequence manufacturing for the automotive trade.”

Supply: Freudenberg Sealing Applied sciences



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