HIGH-PERFORMANCE THIN-FILM BATTERY WITH AN INTERFACIAL LAYER

    公开(公告)号:US20200251784A1

    公开(公告)日:2020-08-06

    申请号:US16848394

    申请日:2020-04-14

    摘要: An all solid-state lithium-based thin-film battery is provided. The all solid-state lithium-based thin-film battery includes a battery material stack of, from bottom to top, an anode-side electrode, an anode region, an aluminum oxide interfacial layer, a solid-state electrolyte layer, a cathode layer, and a cathode-side electrode layer. The all solid-state lithium-based thin-film battery stack is formed by first forming the anode-side of the battery stack and thereafter forming the cathode-side. All solid-state lithium-based thin-film batteries including the aluminum oxide interfacial layer located between the anode region and the solid-state electrolyte layer have improved performance, high capacity, and high reliability.

    HIGH-CAPACITY RECHARGEABLE BATTERIES
    39.
    发明申请

    公开(公告)号:US20190115626A1

    公开(公告)日:2019-04-18

    申请号:US15787453

    申请日:2017-10-18

    IPC分类号: H01M10/0585 H01M4/36

    摘要: High-capacity and high-performance rechargeable batteries containing a cathode material layer having an improved surface roughness is provided. A cathode material layer is provided in which at least an upper portion of the cathode material layer is composed of nanoparticles (i.e., particles having a particle size less than 0.1 μm). In some embodiments, a lower (or base) portion of the cathode material layer is composed of particles whose particle size is greater than the nanoparticles that form the upper portion of the cathode material layer. In other embodiments, the entirety of the cathode material layer is composed of the nanoparticles. In either embodiment, a conformal layer of a dielectric material can be disposed on a topmost surface of the upper portion of the cathode material layer. The presence of the conformal layer of dielectric material can further improve the smoothness of the cathode material layer.