A family of oxychloride amorphous solid electrolytes for long-cycling all-solid-state lithium batteries.

ABSTRACT: Solid electrolyte is vital to ensure all-solid-state batteries with improved safety, long cyclability, and feasibility at different temperatures. Herein, we report a new family of amorphous solid electrolytes, xLi₂O-MCl_y (M = Ta or Hf, 0.8 ≤ x ≤ 2, y = 5 or 4). xLi₂O-MCl_y amorphous solid electrolytes can achieve desirable ionic conductivities up to 6.6 × 10^-3S cm^-1 at 25 °C, which is one of the highest values among all the reported amorphous solid electrolytes and comparable to those of the popular crystalline ones. The mixed-anion structural models of xLi₂O-MCl_y amorphous SEs are well established and correlated to the ionic conductivities. It is found that the oxygen-jointed anion networks with abunda

SUBMITTER: Zhang S 

PROVIDER: S-EPMC10290651 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature