good quality USB C connectors/cables supports up to 5A current transport.
The only way to send a lot of energy in a limited current transport system, is to increase volts..
doin some math. the 240W standard uses tha tecniqe of increasing volts to send more watts. 48Vx5A = 240W
soo it could be easy increased to 100V w some extra cable insulation, I guess.. 100x5=
500W or
1000V times 5A equals 5000W
similar to power energy transport powerlines. energy is sent at 400kV or up to 1million volts to supply a entire city with just a few AWG cable. last step is a good step down circuit/transformer
and about wireless energy? as thought by NicolasT
Imagine having ebike w antenna (car shark radio antenna) that captures wireless energy, continous chargin tha battery, never more connect a ebike to a charger! (make sure U are at a open free space to receive more wireless signal, to get those air chargin amps..)