cross-posted from: https://lemm.ee/post/42738519
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After 300 cycles, a lithium carbide iron disulfide pouch cell retained 72.0% capacity
Put that on a phone and the battery will degrade almost 30% in one year… seems a lot tbh.
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As a point of reference, Google says that somewhere between 500-2000 cycles you can expect a regular lithium battery to degrade to 80%. So this is worse, but in the ballpark. Seems reasonable for a research prototype to be a little worse than a commercial product that’s had years to become highly optimized.