A 1-D Yarn-Based Biobattery for Scalable Power Generation in 2-D and 3-D Structured Textiles

The next generation of textile-based wearable batteries will be built on 1-D fiber/yarn through a bottom-up approach. Functional yarn fibers will be weaved or knitted into 2-D or 3-D batteries of a large textile, but the bottom-up strategy from 1-D yarn fibers is at a very early stage and requires a long-term focus. Here, we demonstrate an innovative 1-D yarn biobattery, a step toward a potential solution for scaling-up production of the wearable batteries. Our 1-D biobattery used microorganisms as a biocatalyst to harvest electrons from microbial metabolism. This yarn biobattery can be easily scaled up by weaving functional yarns into 2-D or 3-D batteries, connecting multiple batteries in series and parallel. [2020-0084].