It is impressive that the article actually addressed the issue of the cathode expansion, as that was my first worry about using iron, but not one that most peop

It is impressive that the article actually addressed the issue of the cathode expansion, as that was my first worry about using iron, but not one that most people would be aware of. I'd be interested to hear about the cycle life of these, the 300 cycles mentioned in the article doesn't exactly inspire confidence when something like NMC will reach 1000 cycles.