Tesla has opened its Superchargers to all non-Tesla EVs in Korea, allowing other brands to access its charging network. The company eventually plans to open all 1,007 chargers in Korea to all automakers.
Liquid cooled cables don’t need larger conductors because the cables are kept cool by actively cooling them. The reason passively cooled cables need larger conductors is that resistance heating of conductors is a self-reinforcing cycle where the resistance increases as temperature increases, and temperature increases as resistance increases. So you use much larger conductors for passively cooled cables to keep resistance heating within the capabilities of the passive cooling of that conductor.
Liquid cooled cables don’t need larger conductors because the cables are kept cool by actively cooling them. The reason passively cooled cables need larger conductors is that resistance heating of conductors is a self-reinforcing cycle where the resistance increases as temperature increases, and temperature increases as resistance increases. So you use much larger conductors for passively cooled cables to keep resistance heating within the capabilities of the passive cooling of that conductor.