A highly elastic polysiloxane-based polymer electrolyte for all-solid-state lithium metal batteries

An elastic electrolyte with a T_g = −51 °C, an ionic conductivity of 4.8 × 10⁻⁵ S cm⁻¹, and a transference number of 0.53 showed a high initial capacity of 134 mA h g⁻¹ and 75% capacity retention after 150 cycles at 0.1 mA cm⁻² at 60 °C in a full cell.