Comment on Altech’s sodium chloride solid state battery exceeds expectations
Dudewitbow@lemmy.zip 1 month agonot saying they wont be used of course, just less optimal because the size and characteristics of the battery may be less ideal. for example, while salt ion batteries wear level decreases at a slower rate than Lithium ion based batteries, when salt ion batteries go bad, they suddenly stop working (e.g goes from a wear level of say like 60% to almost immediately zero) which is not the ideal situation to be in
partial_accumen@lemmy.world 1 month ago
I see a future where an EV will have two batteries each with different chemistries. An example would be to have LFP for the “main” battery which can take a beating but is less dense, and an additional NMC battery which gets used far less frequently, but is available for the less frequent long distance needs. This could also mean that when the LFP is dead from use, it can be replaced independent of the NMC which will have had a fraction of the charge/discharge cycles.
meco03211@lemmy.world 1 month ago
If you meant for a single car, that might be a bit lofty, but for options available it makes sense (ie different trim packages for single model sort of thing).
I see it breaking down as follows: Grocery-getter for an old couple won’t need much capacity. Just enough to get around town over the course of a day of needed and can plug in and fully charge overnight from a wall outlet. The other would be a battery capable of larger distances but needs a little bigger outlet to charge between stops of a long trip.
partial_accumen@lemmy.world 1 month ago
What difficulty do you see with this concept in a single car? This technically exists already as there are multiple charge controllers and BMS systems in EVs shipping today, they are just managing different modules of identical chemistries in the single car.
meco03211@lemmy.world 1 month ago
Not so much difficulty but practicality. I would see it being similar to having 2 gas tanks in a car where one is for a high octane fuel and the other for a low performance fuel like ethanol.