As silicon struggles to keep up with performance requirements, wide bandgap (WBG) materials like silicon carbide (SiC) and gallium nitride (GaN) are best positioned to address power electronics performance needs in electrified vehicles. GaN and SiC will allow for efficient high-temperature operation while also having a cascading impact on the thermal management requirements, wiring, and packaging within a vehicle, reducing the total overall costs of the vehicle. We examine what battery economics are needed to justify adoption of either GaN or SiC, while also highlighting the changing dynamics when battery costs fall. This report further predicts when these materials will be adopted in the auto industry factoring in technology maturity, supplier maturity, and qualification timelines in the auto industry.
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