That is how a series hybrid vehicle is supposed to operate. You have an internal combustion engine that generates electricity, a battery for storage (usually much smaller than a pure EV) and electric motors drive the wheels and handle climate, electronics, etc.
From what I’ve read this might be great for local, in city fleet type vehicles (e.g. US Mail trucks, delivery trucks) as they generally are lower speed and hybrids do very well in stop-and-go city driving.
Since many Americans do high-speed freeway driving, I think most hybrids use a parallel design where both the engine and battery pack are connected to the transmission and can drive the wheels... at high speed, it’s mostly the engine providing the power while charging the battery and at low speeds the battery provides the efficiency boost.
78% of EV owners also own an ICE vehicle.
Why?