Lightweight battery concept based on VESTALITE® S curing agent

High voltage battery housing for more lightweight and cost-effective e-mobility developed by Evonik and partners

Novel SMC-based electric vehicle Battery Concept

The new holistic battery system maintains strength and high voltage performance, but reduces the battery housing weight by ~10% , offering the automotive industry a safer and more energy efficient alternative to the heavier metal-based, or higher priced carbon fiber-reinforced plastics.

Based on our new epoxy SMC – VESTALITE® S curing agent, the lightweight design and production flexibility helps to deliver significant energy savings making the new battery system suitable for use in all vehicle size and classes.

Benefits at a Glance

  • Based on type 21700 cylindrical cells
  • Among the industry leaders in battery performance
  • Up to 160 Wh/kg (pack level)
  • Fulfills legal requirements with sustaining 800 °C for at least 10 minutes
  • Reliable in the harshest environmental conditions
  • Immersion cooling technology greatly improves electrical performance
  • 10 % lighter than comparable SMC standard materials
  • Impact rating 3x greater than min. EU safety requirements
  • Improved strength and stiffness of indivdual parts increases overal strength
  • Scalable tooling – configurations for 65, 85 and 120 kWh
  • Integral design / less assembly
  • Cost-efficient up to > 100.000 p/a – one tooling
  • Fully developed recycling and up-cycling concept
  • Vestalite®S based Lorenz Epoxy-GF-SMC reduces the CO2-footprint
  • Module accessibility due to detachable connection concept
  • Highly customizable battery units for complex geometries
  • Novel tooling concept
  • Production flexibility means various casing sizes are possible

VESTALITE® S 101 for next generation epoxy SMC materials

VESTALITE® S curing agent is a high performance solution for sheet molding compound (SMC) material with low VOC when combined with a liquid epoxy resin.

  • Semi-structural parts
  • Supporting structures
  • Exterior / Interior parts
  • High mechanical performance
  • Low VOC / No smell