Researchers have developed a variety of light-emitting fabric, thermoelectric energy collection fabric and zinc-silver oxide rechargeable battery fabric, and recently further microbial fuel cell fabric added to this series of laboratory techniques, is expected to be used for future wear Type device.
Sumiao Pang, Yang Gao and Seokheun Choi at the State University of New York-Binghamton University published a study in the Advanced Energy Materials journal that describes the composition of a fuel cell fabric , Integrating the bacterial monomer into a single, flexible, stretchable substrate that uses Pseudomonas aeruginosa as an enzyme catalyst and a membraneless fuel cell The output was increased to 6.4 microWatts per square centimeter (mW). The material's current density was 52 microamperes per square centimeter (mA / cm2) and is said to provide higher output than other experimental fabrics and is comparable to Choi's previous Study of paper-based microbial fuel cell output.
According to the researchers, the experimental design uses a filmless single cell structure that simplifies material manufacture and improves microbial fuel cell performance.In order to test the stability of the material, the researchers, through repeated stretching and twisting operations, And said no performance degradation was observed.
Researchers have incorporated conductive and hydrophilic anodes into 3D microchambers in the fabric to maximize bacterial power generation performance through the liquid environment.The researchers said the solid silver oxide / silver material used for the cathode produces fast The catalytic reaction.
Using a printing process and the formation of 35 separate microchambers, the researchers said that the method can be easily extended to mass-produce fabric microbial fuel cells with the net result of a scalable and twistable power supply that can be used In addition to supplying power to wearable electronics, and, according to the researchers, can also be configured to pick up the wearer's sweat to power it while worn and provide long-term continuous operation.It can also be used as a medical device such as disposable medical Diagnostic patches and other products of the disposable power supply.
The research program was financed by the NSF, Binghamton University Research Foundation, and the Analytical and Diagnostic Laboratory at Binghamton University. The researchers reported that the 'scalable flexible bio-battery : Flexible and Stretchable Biobatteries: Monolithic Integration of Membrane-Free Microbial Fuel Cells in a Single Textile Layer "article provides more details.
Compile: Susan Hong