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No information about energy density and vague information about "..the new battery cells can withstand hundreds of charge cycles, and charge very quickly..." S

No information about energy density and vague information about "..the new battery cells can withstand hundreds of charge cycles, and charge very quickly..." So it does not have enough density and thus useless in BEVs and if amount of charge cycles is not counted in thousands, then it is kind of useless for renewable storage as well. But at least it is cheap.

vardump 4y ago
> useless for renewable storage as well If it's cheap enough, it might still be useful in a some sort of hybrid setting. Use this one after a more durable battery is almost exhausted. This way you'd get less cycles overall, but still have power when it's really needed. Other way to look at it is if this one is 10 times cheaper per kWh, then you might prefer this over a more durable battery.
Schroedingersat 4y ago
People with the paper quote 50mAh/g to 500mAh/g depending on charge rate for some reason (not discharge?). Which would give it slightly higher volumetric energy density but worse mass.
- harvie 4y ago
  li-ion has 70-100mAh/g based on my estimation? so if they can do 200mAh/g that would be very nice, but what about the voltage, charge cycle lifespan and maximum discharge rate?
  - Schroedingersat 4y ago
    Voltage is 1.2. I couldn't understand the claims about charge cycle (I think the tests were of 100s of charges, but the discharge rate was variable). Discharge rates were up to 200D, but no explicit mention of internal resistance. I think this was more of a 'we tried the thing' paper to justify whatever funding they had and now it'll all be hush hush until they think they have a product. It's being commercialized by the same people that did ambri which looked like a very promising technology at the time with one hard materials problem then they went dark.
denton-scratch 4y ago
The ingredients are cheap and common; just recycle them after a coupla hundred cycles. Maybe you could even refurbish these things at home. The article didn't mention any exotic or expensive materials or parts, so perhaps you could even build your own. Which wouldn't infringe any patents, as long as you didn't sell the thing.

vardump 4y ago

> useless for renewable storage as well If it's cheap enough, it might still be useful in a some sort of hybrid setting. Use this one after a more durable battery is almost exhausted. This way you'd get less cycles overall, but still have power when it's really needed. Other way to look at it is if this one is 10 times cheaper per kWh, then you might prefer this over a more durable battery.

Schroedingersat 4y ago

People with the paper quote 50mAh/g to 500mAh/g depending on charge rate for some reason (not discharge?). Which would give it slightly higher volumetric energy density but worse mass.

harvie 4y ago
li-ion has 70-100mAh/g based on my estimation? so if they can do 200mAh/g that would be very nice, but what about the voltage, charge cycle lifespan and maximum discharge rate?
- Schroedingersat 4y ago
  Voltage is 1.2. I couldn't understand the claims about charge cycle (I think the tests were of 100s of charges, but the discharge rate was variable). Discharge rates were up to 200D, but no explicit mention of internal resistance. I think this was more of a 'we tried the thing' paper to justify whatever funding they had and now it'll all be hush hush until they think they have a product. It's being commercialized by the same people that did ambri which looked like a very promising technology at the time with one hard materials problem then they went dark.

denton-scratch 4y ago

The ingredients are cheap and common; just recycle them after a coupla hundred cycles. Maybe you could even refurbish these things at home. The article didn't mention any exotic or expensive materials or parts, so perhaps you could even build your own. Which wouldn't infringe any patents, as long as you didn't sell the thing.