Curious to see what a more realistic 75mph highway driving test would show. Guessing around 600 miles which is very impressive. Seems like a nobrainer for Tesla to acquire them if their claims pan out.
It's not only the range that matters though. These batteries have a lot of cobalt, and Tesla is moving away from that. Moreover, we don't know how fast they charge, how many cycles they can be used, if they can be used in cold climates, how fire-prone they are, and maybe 10 other things that Tesla needs to consider for their production batteries.
But yes, if all those other things are decent enough, Tesla obviously has the money to acquire this startup.
"In practice, that means lithium iron-phosphate (LFP) chemistry, which historically has energy density 30 percent lower than cobalt- or nickel-based chemistries (and, unfortunately, reportedly cold-weather issues). Its first product, Aries, will go into production late this year. It's a battery using prismatic LFP cells in a structural cell-to-pack architecture without separate modules, packing more cells into the pack to lower the energy disadvantage against cobalt cells."
I found a chart once where someone measured efficiency of some EV or another. And the rule of thumb was that the cars hit peak energy/distance efficiency at 40-45mph and drop to about half that at 90mph.
Which would amusingly put your 600 mile guess just about dead on.
I'd expect the Speed vs. MPG graphs for many conventional (gasoline or diesel engine) cars to be similar. Air resistance (of a given vehicle) is roughly proportional to the square of the velocity. And air resistance (or drag, to be more technical) doesn't care whether the car's wheels are being powered by batteries, burning fuel, or a wound-up giant spring.
credit_guy|4 years ago
But yes, if all those other things are decent enough, Tesla obviously has the money to acquire this startup.
danans|4 years ago
Not according to the article:
"In practice, that means lithium iron-phosphate (LFP) chemistry, which historically has energy density 30 percent lower than cobalt- or nickel-based chemistries (and, unfortunately, reportedly cold-weather issues). Its first product, Aries, will go into production late this year. It's a battery using prismatic LFP cells in a structural cell-to-pack architecture without separate modules, packing more cells into the pack to lower the energy disadvantage against cobalt cells."
tssva|4 years ago
ajross|4 years ago
Which would amusingly put your 600 mile guess just about dead on.
bell-cot|4 years ago
pbreit|4 years ago
reportingsjr|4 years ago
Philip-J-Fry|4 years ago