Wevo-Chemie, a German adhesives and sealants producer, has developed thermally conductive potting compounds and gap fillers that are designed to improve heat removal and ensure mechanical stability in EV power electronics. These epoxy resin- and silicone-based materials provide reliable electrical insulation and protect against electrochemical corrosion due to their low ion content. Wevo has also optimized the flow properties of these potting compounds to fill small gaps despite their high thermal conductivity and filler content.
The materials can be adjusted to withstand temperatures ranging from -40° C to +180° C, preventing cracking during thermal shocks, cycles and damp-heat storage. Additionally, Wevo has optimized the adhesion of the silicones to metals such as aluminum, making them suitable for use in the area around the component housing or for components such as coils or printed circuit boards (PCBs). The materials can also be optimized for specific applications, making them suitable for electronic control units (ECUs) and DC/DC converters.
If full encapsulation of the inverter is not possible or not desirable, Wevo’s gap fillers can be used to establish a local connection to the component housing or the cooling system. This ensures that the power electronics remain stable and efficient while also providing reliable electrical insulation. Wevo’s thermally conductive potting compounds and gap fillers are an essential part of any EV power electronics system.
FAQ
Q1: Are electric car batteries recyclable?
A1: Yes, electric car batteries are recyclable.
Q2: Are electric car chargers free?
A2: It depends on the charger and the location. Some electric car chargers are free, while others may require a fee.
Q3: Can electric car batteries be rebuilt?
A3: Yes, electric car batteries can be rebuilt with the right tools and knowledge.
