In collaboration with SGL Carbon, Chinese language automotive producer NIO has developed prototypes for battery enclosures fabricated from carbon-fiber bolstered plastic (CFRP) for its NIO excessive efficiency electrical autos. The battery enclosure is extraordinarily light-weight, secure and protected.
Your complete battery enclosure, together with the batteries, will be modified at swapping stations of NIO inside simply three minutes. NIO introduced the swap idea at NIO Day in December 2017 for the primary time and now demonstrated the precise system together with numerous technological improvements together with the CFRP battery enclosure dwell on the 2019 Shanghai Auto Present.
Industrial battery enclosures for electrical autos are primarily fabricated from aluminum and metal. Compared, the CFRP battery enclosure is round 40 % lighter. Different advantages embrace the enclosures’ stiffness and the roughly 200 instances decrease thermal conductivity of CFRP in comparison with aluminum, which higher shields the battery from warmth and chilly. Plus, the composite additionally presents wonderful values by way of water and gasoline leakage tightness and corrosion resistance.
—Sebastian Grasser, head of market phase Automotive within the Composites – Fibers & Supplies enterprise unit at SGL Carbon
Light-weight know-how is without doubt one of the core parts in NIO know-how roadmap. Utilizing composite materials particularly the high-performance carbon fiber in battery enclosure system, our car can obtain higher dynamic efficiency, enhance vary, and acquire remarkably excessive power density of the battery pack (over 180 Wh/kg). These options match completely to the core values of NIO manufacturers of final product and system effectivity.
—Bin Wei, Senior Supervisor of Light-weight Engineering at NIO
These excellent battery enclosure traits primarily owe to the underside and canopy plate design, combining a sandwich core with a number of layers of carbon fiber non-crimped materials.
SGL’s Light-weight and Utility Middle was liable for growing the instrument to provide the underside and canopy plate. Alongside the totally built-in worth chain, carbon fiber is produced for these parts on the SGL vegetation in Moses Lake and Muir of Ord, processed into non-crimped materials in Wackersdorf. In addition to producing the underside and canopy plate, the SGL web site in Ried, Austria, additionally assembled the person parts.
SGL Carbon expects demand for light-weight options for battery enclosures within the automotive sector to develop quickly within the subsequent few years attributable to growing electromobility. The corporate is already working with numerous companions to proceed growing completely different battery enclosures fabricated from composites with the intention of scaling them for electrical car batteries of all sizes and designs.