General > General Technical Chat
the dark side of cobalt
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AVGresponding:
And she's pledged the money to charity. Her parents are fairly well off anyway. Perhaps you could explain the relevance?
Njk:
Ten years ago we'd adopted a kitten. When he'd reached his teenage, we'd decided to let him to see the vet. I was not very excited, but that was the only way to stop him from pissing on everything. Looking at him now, I don't think he would be happier without the visit to the vet. Really. Now look at Putin, Trump, Travis Kalanick and the other guys of that sort. No matter where they are, they all are just different facets of the same evil: ambitions. When one wants to build a cabin in the wood by the DIY method, it hardly can be called an ambition. Ambition is when he wants to convince the others to do it for him. Of course, it's more effective way. More people involved, more damage is done. With more damage, more people are happy, the other living thing does not matter. It's not a technology problem, it's something more fundamental. I don't know how to handle it. To feed the ambitious guys with sedative drugs? In which way? To let them to see the doctor? How? That's the first problem to address, not the technology.
Siwastaja:
The silver lining is, cobalt is not absolutely mandatory for li-ion. The most energy dense NCA chemisty (as used by Tesla for example) already cuts the cobalt use by 80% or so compared to the classic LCO, but completely cobalt-free chemistries like LMO or LFP are not showstoppers, even though a tad worse in performance, LMO specifically in high-temperature calendar life and LFP in energy density.

If the price of cobalt or political pressure of using it becomes a problem, then we will see shift to those others chemistries whenever their performance is sufficient. Tesla is already producing LFP cars too, which was considered to be too low on energy density just a few years ago, and their owners seem to be quite happy about them. They have less range than the NCA-based models but still a lot more than the earlier generation EVs.
nctnico:

--- Quote from: Nominal Animal on July 09, 2023, 07:32:29 pm ---Why is it that activists are always telling others what to do, instead of doing it themselves first [snip]

--- End quote ---
Because if they do that, they'll end up living in caves or huts made from tree branches.
langwadt:

--- Quote from: nctnico on July 10, 2023, 12:54:19 pm ---
--- Quote from: Nominal Animal on July 09, 2023, 07:32:29 pm ---Why is it that activists are always telling others what to do, instead of doing it themselves first [snip]

--- End quote ---
Because if they do that, they'll end up living in caves or huts made from tree branches.

--- End quote ---

freezing, hungry, in th dark ...
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