SGL Carbon to Begin Production of Composite Battery Enclosures for Electric Cars

Following the production of battery enclosure prototypes for a Chinese automotive manufacturer in 2018, SGL Carbon has now received a large contract from a North-American automaker for high-volume serial production of carbon and glass fibre-based composite top and bottom layers for battery enclosures.

The serial production of the components will start at the end of 2020. The carbon fibres and fabrics, as well as the assembled components, come from SGL Carbon. On top of this order, there is the potential for more significant extensions with further substantial volumes for the shared platform business of the manufacturer.

In addition, SGL Carbon has won a smaller volume contract from a European sports car manufacturer to serially produce bottom layers made of composites as of mid-2020. The company is additionally in talks with further automakers to develop and manufacture battery enclosure solutions for its e-car platforms.

Driven by the increasing need for e-cars worldwide and thus for new flexible chassis platforms, our composite battery enclosures are a very promising new application in our product portfolio. Sebastian Grasser, Head of Automotive Segment at the business unit Composites

A key part of any e-car chassis platform is the enclosure of the battery which usually occupies most of the space in the underfloor of the chassis and has various very specific requirements far beyond low weight. The battery cases also need to be very stiff to support driving dynamics. In addition, the material has to protect the underbody against impact, enable optimised thermal management and offer excellent fire protection as well as complete water and gas impermeability. All these requirements are met by composites much better than by any other material. With these advantages, composite battery enclosures perfectly fit e-car-specific and highly flexible chassis variants, so-called “skateboard” platforms, to be used as a basis for a great variety of different e-car models.