4 ms·

You probably missed it, but the nature.com article that some commenters have referenced [1] has more details, including information on the charge rate. > A ful

You probably missed it, but the nature.com article that some commenters have referenced [1] has more details, including information on the charge rate. > A full-cell incorporating graphene balls increases the volumetric energy density by 27.6% compared to a control cell without graphene balls, showing the possibility of achieving 800 Wh L−1 in a commercial cell setting, along with a high cyclability of 78.6% capacity retention after 500 cycles at 5C and 60 °C. In your other comment you write: >the standard is 80% capacity after 500 cycles at the normally specified (1C) charge rate So I'd say that's pretty good. [1] https://www.nature.com/articles/s41467-017-01823-7 https://www.nature.com/articles/s41467-017-01823-7

dtx1 9y ago
> A full-cell incorporating graphene balls increases the volumetric energy density by 27.6% compared to a control cell without graphene balls, showing the possibility of achieving 800 Wh L−1 in a commercial cell setting, along with a high cyclability of 78.6% capacity retention after 500 cycles at 5C and 60 °C. Does that mean 5C Charge rate and > 5C Discharge? Because in the EV Market 5C discharge would be borderline enough (I think Teslas 18650 discharge at a peak of 20A per ~3,5Ah Cell so 5C Discharge would be cutting it very close.) If it's 5C Charge and getting to 500 cycles with higher discharge then...woah.