Swiss Researchers Develop Self-Digesting Fungal Battery for Remote Sensors
Swiss researchers at Empa's Cellulose and Wood Materials laboratory have developed a living fungal battery that feeds on sugar and self-destructs after its operational life. This 3D-printed microbial fuel cell utilizes the natural metabolism of two complementary fungal species to generate electricity. Unlike conventional batteries, this innovation is designed to be non-toxic and biodegradable, making it suitable for use in remote or ecologically sensitive environments where traditional batteries pose disposal challenges. The battery can power a temperature sensor for several days and is activated by adding water and nutrients after being dried and stored. The team developed a cellulose-based ink that keeps the fungi alive during printing, conducts electricity, and serves as a nutrient source for the fungi, facilitating the battery's self-degradation.
