[ldrndll]

For people (like me) who don't appreciate the advantages of 800v vs 400v, here's an article about why this is useful:

https://eandt.theiet.org/content/articles/2021/02/800v-syste...

> Such systems enable greatly reduced charging times, as long as they are using fast chargers capable of working at up to 270kW.

> It also allows for weight reduction, as less copper is needed in the electric system. Electric motors are much simpler than combustion engines in construction and at their core they have a rotor, which is driven by a changing magnetic field. To induce this field, electrical systems often use up to four times the amount of copper found in combustion engines; higher voltages reduces the need for large amounts of copper. This permits smaller motors, freeing space in the vehicle for batteries.

[mmwelt]

From your linked article:

> If the charger provides 800V and a minimum of 300A, the Taycan can charge from five to 80 per cent in 22.5 minutes.

Wow! That's an insanely huge amount of current. Obviously the cables would have to be very thick to reduce transmission losses, but then you'd also have to have sufficient insulation/protection at 800V!

[clouddrover]

The fastest CCS chargers you'll typically find are 350 kW. They use liquid cooled cables. Ionity's chargers are 920 volts and 500 amps but deliver a maximum of 350 kW:

https://ionity.eu/en/design-and-tech.html

Some CCS chargers are 400 kW:

https://insideevs.com/news/375020/repsol-most-powerful-charg...

Cars like the Lucid Air, Porsche Taycan, Porsche Taycan Cross Turismo, Audi e-tron GT, Hyundai Ioniq 5, and the Kia EV6 can take advantage of the higher voltage to get high peak charging rates.

The Lucid Air's peak charging rate is supposed to be above 300 kW. It'll be interesting to see what the full charge curve is like for the Air.