Oh, a flexible, chained peltier. "The 72-couple device exhibited the highest reported output power and device power density from a single thermoelectric genera

Oh, a flexible, chained peltier. "The 72-couple device exhibited the highest reported output power and device power density from a single thermoelectric generator, the scientists said" https://www.psu.edu/news/research/story/form-fit-device-wraps-around-hot-surfaces-turns-wasted-heat-electricity/ https://www.psu.edu/news/research/story/form-fit-device-wrap...