A team of researchers has recently developed a new type of battery that is powered by earth. The idea behind this invention is more than a century old. This new battery, developed by a team at Northwestern University in Illinois, is about the size of a paperback book and can be easily plugged into the ground. Microbial fuel cells have been in existence since 1911.
They work in a similar manner to regular batteries, but instead of obtaining electrical energy from chemical sources, they use bacteria to generate electricity. This technology has the potential to become a renewable and sustainable alternative to traditional batteries. It could have a significant impact on agriculture due to its use in sensors to measure the levels of moisture, nutrients and pollutants in the soil.
On average, the battery generates approximately 68 times more power than was required to operate the built-in sensors and transmit data. According to the research team, all the components required to build a ground-based battery are available at hardware stores. With the help of the study, anyone could recreate the battery themselves. Additionally, a completely biodegradable battery of the same type is also being planned. Both concepts eliminate the need for complex supply chains and the use of conflict minerals. These batteries won’t be used in electric vehicles; however, they are very practical for garden tools and outdoor activities where affordable and portable power is needed.
