From everything I've read about existing Lithuum battery storage, this is already their strongpoint. Is it helpful to be 10x faster that the current speed?
Instead of stopping to charge my car for half an hour (up to 80%), I can stop for 5 minutes?
Sign me up.
We ended up sizing our batteries to meet wattage demands for our appliances. I wish we had ~ 2x as many kWh as we do. Anker has a home battery whose main selling point is that you can add kWh without adding peak wattage.
For use in vehicles, faster charge rates are a big win. Faster discharge probably doesn't matter much for cars (0-60 times are already ridiculously low). They might for drones / planes though.
there are available li-ion batteries with a charge and discharge rate of '15c', which is to say, 1 hour ÷ 15 = 4 minutes. they are used in drones. (there are some advertised as '30c' but i suspect those are maybe just a fraud? like the notorious amazon million-lumen flashlights https://www.youtube.com/watch?v=ceA5xL6ggEw) if they really reach '150c', you could discharge 10% of the battery in 2.4 seconds, which is closer to a firework rocket engine than a conventional battery. but, a rocket engine that you can recharge 50000 times
a charge rate of '150c' would mean you could charge the battery halfway in 12 seconds, and there are a lot of scenarios where that would be useful
you could imagine '150c' batteries displacing much larger supercapacitors from many uses, rather than displacing conventional batteries. the number given in the article of 70 watt hours per kilogram is, in si units, 250kJ/kg. if you divide that by the 24 seconds implied by '10 times faster than lithium-ion' you get a power density of 10.4 kilowatts per kilogram. https://en.wikipedia.org/wiki/Power_density says supercaps are in the 15 kilowatts per kilogram range. quadcopter drone electric motors are typically in the neighborhood of 4–5 kilowatts per kilogram, so this would make the drone battery much smaller than the motor instead of bigger
more likely, though, it's a press release lie, where they're saying something that's technically true (there are lithium batteries with a '1c' charge and discharge rate, which have higher energy density than the higher-powered ones, and their batteries reach '10c', i.e., 6 minutes) but creates a false impression of something that would be a huge breakthrough if it were true