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What about a small hot-swappable battery compartment in EVs that give you enough kms to get home (like a jerry can of petrol). I'm not sure if the size of batte
by ycombinete 3y ago
What about a small hot-swappable battery compartment in EVs that give you enough kms to get home (like a jerry can of petrol). I'm not sure if the size of battery needed for a car would be prohibitive though. How big would a ~30km battery be?
Then instead of charging points, you could have something more like a petrol/filling station. Pop in, swap your pack, and drive off. (You could even plug the car in for a fast charge while they do the battery swap).
My model for this is the hot-swappable battery packs that the electric scooter networks in many Asian countries employ. [0]
[0] https://www.wired.com/story/battery-swapping-tech-gives-electric-motorcycles-an-edge/ https://www.wired.com/story/battery-swapping-tech-gives-elec...
- yourusername 3y ago>How big would a ~30km battery be? 25-50kg depending on the efficiency of the vehicle. Not really something most people can comfortably handle or walk a few hundred meters with from the battery pickup point to their car.
- ycombinete 3y agoThat's not too bad. That's something the could conceivably be automated at a station.
- bad_alloc 3y agoYou'd need a user-safe way to plug and unplug a 400V to 800V battery if you want to directly supplement the main battery. Otherwise you are looking at additional hardware to convert the voltage.