It’s probably doable, but not a particularly attractive technology when compared to alternatives.

Wondering why you feel that way? It would be easy to design packs of 4 that would have rotations where one cell does the resetting cycle while the others do the regular one? Is the reset cycle as long as the recharge one btw?

Copper sulfate is (scandalously) sold as an “organic pesticide” at least here in France because it has been traditional in the treatment of grapes for a very long time.