Its near worthless after ~3000 cycles or so given today’s chemical compositions
That’s not true. It typically takes that many cycles to get down to 80% of the original capacity, which is not “near worthless”. Packs at this capacity can be used for a long time in applications such as fixed solar batteries, as I mentioned in my original response to you.
Your link shows experimental data where NCA type Li-ion wears out in as little as 250 cycles.
As I stated before: the exact amount varies by temperature, manufacturing variance, chemistry, charge rate and other factors. One number cannot represent all cells. But I posit that my 3000 cycle estimate is above and beyond the experimental data in your link.
I was steelmanning the argument and your link proves it.
Posting for anyonee else who follows this thread, he wasn’t capable of understanding the research.
Figure 1 shows the remaining capacity for several samples of LFP chemistry batteries after thousands of cycles. LFP is the most commonly used battery chemistry in electric cars right now. The data presented showed that almost all of the samples had >80% usable capacity after 3000 cycles.
Typical use of an electric car would require 1-2 charges per week. At 2 charges per week, 1500 charges is over 14 years of usable lifetime before the capacity of the battery degrades to 80%.
And as I said before, there are lots of good uses for battery packs at 80% degradation.
That’s not true. It typically takes that many cycles to get down to 80% of the original capacity, which is not “near worthless”. Packs at this capacity can be used for a long time in applications such as fixed solar batteries, as I mentioned in my original response to you.
https://iopscience.iop.org/article/10.1149/1945-7111/abae37
I will not be responding to you, you seem to be trolling.
Your link shows experimental data where NCA type Li-ion wears out in as little as 250 cycles.
As I stated before: the exact amount varies by temperature, manufacturing variance, chemistry, charge rate and other factors. One number cannot represent all cells. But I posit that my 3000 cycle estimate is above and beyond the experimental data in your link.
I was steelmanning the argument and your link proves it.
Posting for anyonee else who follows this thread, he wasn’t capable of understanding the research.
Figure 1 shows the remaining capacity for several samples of LFP chemistry batteries after thousands of cycles. LFP is the most commonly used battery chemistry in electric cars right now. The data presented showed that almost all of the samples had >80% usable capacity after 3000 cycles.
Typical use of an electric car would require 1-2 charges per week. At 2 charges per week, 1500 charges is over 14 years of usable lifetime before the capacity of the battery degrades to 80%.
And as I said before, there are lots of good uses for battery packs at 80% degradation.