Has to be a typo. 900V is the only thing that makes sense in the context of the 'reducing current' since that is the 'main loss'.
This whole article is kind of terrible though... they're talking about reducing losses by using SiC MOSFETs and using higher voltage architecture... except they fail to recognize that higher voltage MOSFETs inherently have higher impedance when on, and it causes a bunch of other potential issues.
Also, they're comparing themselves against the Porsche Taycan... which is one of the worst performing (in kWh/efficiency value) cars out there. Why not compare against the Model 3? The Model 3 uses SiC MOSFETs (although, 400V rated ones) just like they're talking about here.
This whole article is kind of terrible though... they're talking about reducing losses by using SiC MOSFETs and using higher voltage architecture... except they fail to recognize that higher voltage MOSFETs inherently have higher impedance when on, and it causes a bunch of other potential issues.
Also, they're comparing themselves against the Porsche Taycan... which is one of the worst performing (in kWh/efficiency value) cars out there. Why not compare against the Model 3? The Model 3 uses SiC MOSFETs (although, 400V rated ones) just like they're talking about here.