4 ms·The article says they tested it. It composted in two months.by sp332 5y agoThe article says they tested it. It composted in two months.tuatoru 5y agoLeaving some residue. What's in that?nix23 5y agoJust some carbon, yesterday it was on TV: https://www.swissinfo.ch/ger/empa-forscher-entwickelten-eine-kompostierbare-batterie/46673816 https://www.swissinfo.ch/ger/empa-forscher-entwickelten-eine... Sorry for just being in german.