Regulating the Self‐Discharge of Flexible All‐Solid‐State Supercapacitors by a Heterogeneous Polymer Electrolyte (Small 31/2021)

Flexible Supercapacitors In article number 2102054, Tao Chen and co-workers report an efficient strategy to suppress the self-discharge behavior of flexible supercapacitors by building a heterogeneous polyanion/polycation electrolyte between two electrodes. The electrostatic repulsive effect between the charged polyelectrolytes and movable ions endows the charged supercapacitors with longer self-discharge time than that of devices based on homogeneous polymer electrolyte.