Dc residential ev charger

I want an autonomous self contained dc to dc ev charger.
I wok on shifts and park my car in a empty plot of land that has NO electricity and no GRID connection

I want to install solar panels and a “system” that can feed my car dc to dc with 7 kwh per day 6hr hr charge. This is the anou t of energy i need to drive my car on daily basis.
Ideally i would like to charge dc to dc without any charge conversions

This technology does not currently exist. You will need a hybrid inverter and small battery, such as the Sigenergy system.