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With units of Wh/g (Li metal), my impression is that it's measuring grams of pure lithium.
by mtdewcmu 10y ago
With units of Wh/g (Li metal), my impression is that it's measuring grams of pure lithium.
- hwillis 10y agoYes, but its not a useful measure. Most batteries will have similar specific energy when compared by lithium directly. How effectively the lithium is used is also almost completely irrelevant to the cost, weight and size of the battery. It's just a really weird thing to measure and they don't actually specify what the grams are of- lithium or sulfur are just the only things that make sense.
- yorwba 10y agoThe grams are specified as "g (Li metal)", so grams of lithium.
- hwillis 10y agoYes, but on first read I thought that they were specifying for the battery using lithium metal as they were also talking about sodium and nonmetallic lithium. It's just so random I didn't read it correctly.
- yessql 10y agoIs lithium the most expensive material in the chemistry?
- mtdewcmu 10y agoI made a cursory attempt to find the answer, and I was unsuccessful. I did find this[1], though (from my alma mater). [1] https://engineering.cmu.edu/media/press/2016/12_13_whitacre_ciez_battery.html https://engineering.cmu.edu/media/press/2016/12_13_whitacre_...