Science Daily March 28, 2018
Researchers in China twisted carbon nanotube fibers into a yarn, then coated one piece of yarn with zinc to form an anode, and another with magnesium oxide to form a cathode. These two pieces were then twisted like a double helix and coated with a polyacrylamide electrolyte and encased in silicone. In tests the yarn zinc-ion battery was stable, had a high charge capacity, was rechargeable and waterproof. The material could be knitted and stretched, cut into several pieces, each of which could power a watch. In a proof-of-concept demonstration, eight pieces of the cut yarn battery could power a belt containing 100 LEDs and an electroluminescent panel… read more. TECHNICAL ARTICLE
Emerging research toward next-generation flexible and wearable electronics has stimulated the efforts to build highly wearable, durable, and deformable energy devices with excellent electrochemical performances. Credit: American Chemical Society