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Cytec’s New MTM 23 for Chevy Spark EV

April 14, 2014 in batteries, EVs by Rich Piellisch  |  No Comments

First-of-Its-Kind Prepreg for Enclosures by Continental Structural Plastics

Cytec Industrial Materials is promoting the selection of a new type of composite material for the battery enclosure of the Chevrolet Spark EV battery electric car. The enclosure is built by Michigan’s Continental Structural Plastics using Cytec’s MTM 23, “a tailored, self-releasing rapid-cure vinyl hybrid resin,” on woven glass fiber.

Cytec-supplied images show composite battery enclosure and its position on GM’s Chevrolet Spark EV.

Cytec-supplied images show composite battery enclosure and its position on GM’s Chevrolet Spark EV.

The material, developed according to CSP requirements, is impact- and fire damage-resistant, Cytec says, and can be rapid-cured in less than three minutes.

It protects the Spark EV’s liquid-cooled lithium ion battery.

MTM 23 “is the industry’s first application of a volatile-organic compound (VOC)-free thermoset vinyl hybrid resin woven glass reinforced prepreg,” Cytec says (a prepreg is a pre-impregnated composite material). It allows CSP to economically form a complex-shaped enclosure that protects the EV’s battery parts.

Less Component Weight for Better Vehicle Range

“The tough compression-molded composite is 40% lighter than metallic solutions, helping the vehicle achieve extended range and enhanced performance,” Cytec says.

“Since it is non-conductive, it protects occupants and first responders to an accident scene. The specially formulated resin is free of styrene emissions, making it safer for workers and the environment.”


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Source: Cytec with Fleets & Fuels follow-up

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