Researchers, from the University of Illinois at Urbana-Champaign, are also working on capsule additives designed to heal failures in lithium-ion battery electrodes, to prevent the short-circuiting that can sometimes cause a fire. Capsules filled with conductive nanotubes that rip open under mechanical stress could be placed on circuit boards in the areas that are important… »

A concrete material developed at the University of Michigan can heal itself when it cracks. No human intervention is necessary—just water and carbon dioxide. New substance could make infrastructure safer and more durable. Self-healing is possible because the material is designed to bend and crack in narrow hairlines rather than break and split in wide… »