FABULOUS FUNGAL BATTERY

A new living 3D-printed fungal battery could supply power to sensors for agriculture or research in remote regions. Once the work is done, it digests itself from the inside. The living cells produce enough electricity to power a temperature sensor for several days. The biggest advantage of the fungal battery is that it is not only completely non-toxic but also biodegradable.

https://www.empa.ch/web/s604/fungal-biobattery