Antifreezing Zwitterionic Hydrogel Electrolytes: Antifreezing Zwitterionic Hydrogel Electrolyte with High Conductivity of 12.6 mS cm−1 at −40 °C through Hydrated Lithium Ion Hopping Migration (Adv. Funct. Mater. 18/2021)

Polymer hydrogel electrolytes with high conductivity can be used in extremely low temperatures such as −40 °C. In article number 2009438, Libin Liu and co-workers report a new type of antifreezing zwitterionic polymer hydrogel (polySH) electrolyte. The zwitterionic groups are favorable for the dissociation of LiCl. A Li+(H2O)n hydration structure can hop and migrate through the channel of the zwitterionic group. The excellent antifreezing property and conductivity make the polySH electrolyte applicable in ion conductors and energy storage devices.