600 mile car battery?

[mgwmgw]

Not sure if this is real yet, but a battery that can move a car 600 miles might also be useful in power chairs.

https://www.theverge.com/2019/4/4/18293989/innolith-ev-battery-breakthrough-lithium-ion

Electric carmakers have long been clamoring for a battery breakthrough that will improve the range of their vehicles while also extending their lifespans. Innolith, a Swiss startup, says its new high-density lithium-ion batteries can do just that.

The company claims to have made the world’s first 1,000 Wh/kg rechargeable battery. (Watt-hours per kilogram is a unit of measurement commonly used to describe the density of energy in batteries.)

[mgwmgw]

https://innolith.com/

[Burgerman]

Theres a lot of rather dubious claims and no substance other than this:

Solid-state batteries have cells that are made of solid and “dry” conductive material, but that technology is still stuck in the lab and hasn’t made it to production.

Other than the Lithium ion polymer packs which have been in use in RC planes and helis since around 2001 and commonly from 2003. Those have this mythical dry electrolyte. Theres about 8 here in my room...

Like all these battery claims, theres usually smoke but no fire. And a lot of 'investment' by someone or other...

[mgwmgw]

This looks real, but not useful yet.

https://www.upworthy.com/a-student-accidentally-created-a-rechargeable-battery-that-could-last-400-years?c=ufb1

[martin007]

That's all very well, but the quality of commercial batteries is still lousy.
The industry only seeks benefits.

Bad batteries = wide sales = wide money

Good batteries = less money

[Burgerman]

Now will it be... You note they dont mention that the capacity and volume/weight is likely not good.

And they claim laptop batteries have 500 cycles. Thats true if you use all the capacity. Those same cells used in a tesla car are good for 15 years and 6 to 7000 cycles because they dont charge full, or run them low. They fit a BIGGER battery and only use 80% of its capacity.

And LiFePO4 that we are using here can do AT LEAST 4x better than that! By avoiding 100% full or worse, and not running to 0% every cycle. As such fit a LARGER capacity pack in a powerchair as we do here (say 200Ah LiFePO4 in place of the 70Ah lead, which only actually provides 40Ah) and we get 5X the range. And we get a choice!

We can charge the chair every week, and still get its 2000+ cycles as per spec. So 285 weeks. Thats 6 years, but thats only down to 80% capacity still remaining. Remember we increased range 5X!!! So we can continue happily for 6000 cycles to 70% remaining capacity. Now we ONLY have 3X the range of a set of lead bricks and 18 years of use by which time we will have replaced the chair. This is today.

We can also charge daily. And get many 10s of thousands of cycles already, as we are only utilising about a 5th of the battery capacity on average. So same thing. 20 years of use with about 3x as much range as lead still remaining. When you look at the figures the breakthrough she claims makes little sense. Because CALENDER life limits us to 10 or 15 years anyway. And likely does the same with her 400 year battery...

So... like the rest its a headline looking for investment (a living) and likely going nowhere in a decade or so. I could be wrong but I see so many battery breakthrough claims they just make me laugh now.