> operator must introduce a small amount of water dissolving the salt in the paper and thereby releasing charged ions which disperse through the paper causing t

> operator must introduce a small amount of water dissolving the salt in the paper and thereby releasing charged ions which disperse through the paper causing the zinc ink anode to release electrons My impression is that the process of oxidizing the zinc is what is releasing the electrons. It isn't intended to be recharged. Source paper: https://www.nature.com/articles/s41598-022-15900-5 https://www.nature.com/articles/s41598-022-15900-5 Previous work: https://onlinelibrary.wiley.com/doi/full/10.1002/adma.201004134 https://onlinelibrary.wiley.com/doi/full/10.1002/adma.201004...