Stretchable and Freeze‐Tolerant Organohydrogel Thermocells with Enhanced Thermoelectric Performance Continually Working at Subzero Temperatures (Adv. Funct. Mater. 43/2021)

Organohydrogel Thermocells In article number 2104071, Yongping Chen and co-workers report a stretchable, freeze-tolerant, and high-efficiency thermocell based on a synergistic chaotropic effect. This quasi-solid thermocell is anti-freezing even at −50 °C, and the maximum normalized power density can achieve 0.1 mW m−2 K−2. This work provides insights into developing reliable power sources to drive flexible electronics continually in extremely cold environments.