Fast Charging Quasi-Solid State Li-Metal Batteries Enabled By Y-Alumina Separators

    公开(公告)号:US20240250383A1

    公开(公告)日:2024-07-25

    申请号:US18562463

    申请日:2022-05-17

    摘要: A lithium-metal battery electrode-supported separator includes an electrically conductive substrate and a separator coated on the substrate. The separator includes plate-shaped γ-alumina particles, and the γ-alumina particles define inter-particle tortuous pores. A method of making the electrode-supported separator includes preparing a slurry of the plate-shaped γ-alumina particles, spreading the slurry on an electrically conductive substrate to yield a coated separator, and drying the coated separator to yield the electrode-supported separator. A lithium-metal battery includes a first electrode, a separator coated on first electrode, a second electrode comprising lithium metal, and an electrolyte in contact with the first electrode and the second electrode. The separator includes plate-shaped γ-alumina particles, the γ-alumina particles define tortuous intra-particle pores, and the second electrode is in direct contact with the separator.