Bosch, Germany: 300mm wafer factory, 1 billion euro invest: SiC device production
German Bosch:
We produce existing factory data and SiC devices.
The EV mileage is expected to increase by 6% compared to the previous model by using SiC power semiconductors.
Nissan: “Leaf” example
The mileage of the model with a battery capacity of 62kWh is 458km in WLTC mode.
Calculation using SiC power semiconductor to increase the travel distance to 485km.
SiC power semiconductor:
Reduces cooling mechanism costs by suppressing heat loss and raising operable temperature.
It is also possible to reduce the battery capacity.
Battery costs, which account for the majority of EV costs, can be reduced, leading to lower vehicle prices.
MONOist
https://monoist.atmarkit.co.jp/mn/spv/1910/09/news051.html
Bosch Claims Better Chips Can Increase EV Range
Now Bosch
has announced it is building a factory in Dresden, where it will use 300 millimeter silicon carbide disks to make a new kind of semiconductor.
What’s the big deal?
Using larger discs
drives down the cost of manufacture and the new chips transmit electricity about 6% more efficiently than conventional chips.
Greater efficiency
has several benefits for electric cars. It means a car can travel about 6% further on a single charge.
That can make consumers happy — 6% more range means 265 miles for a car currently rated at 250 miles —
or it can allow companies to decrease the size of the batteries they need to get the range their cars need to be competitive.
Smaller batteries also cost less, which means companies can lower the selling price of their electric cars to boost sales.
Greater efficiency means less electricity is lost to heat during charging and driving.
Less heat means smaller cooling systems, which can also save manufacturers money.
According to SlashGear, the new silicon carbide semiconductor design
has better electrical conductivity than existing chips, thanks to more carbon atoms being packed in during the manufacturing process.
That means
the electronics can achieve higher switching frequencies while also losing less power in the form of heat.
CleanTechnica
https://cleantechnica.com/2019/10/09/bosch-claims-better-chips-can-increase-ev-range/