Nanocomposite of a nanoporous material and an active material and method of synthesizing thereof

    公开(公告)号:US11316148B2

    公开(公告)日:2022-04-26

    申请号:US16103663

    申请日:2018-08-14

    发明人: Gleb Yushin Danni Lei

    摘要: In an embodiment, an active material-based nanocomposite is synthesized by infiltrating an active material precursor into pores of a nanoporous carbon, metal or metal oxide material, and then annealing to decompose the active material precursor into a first gaseous material and an active material and/or another active material precursor infiltrated inside the pores. The nanocomposite is then exposed to a gaseous material or a liquid material to at least partially convert the active material and/or the second active material precursor into active material particles that are infiltrated inside the pores and/or to infiltrate a secondary material into the pores. The nanocomposite is again annealed to remove volatile residues, to enhance electrical contact within the active material-based nanocomposite composite and/or to enhance one or more structural properties of the nanocomposite. In a further embodiment, the pores may be further infiltrated with a filler material and/or may be at least partially sealed.

    Lithium-ion capacitor
    54.
    发明授权

    公开(公告)号:US11302487B2

    公开(公告)日:2022-04-12

    申请号:US16005777

    申请日:2018-06-12

    摘要: A lithium-ion capacitor (LIC) is provided which includes positive electrodes, negative electrodes pre-loaded on surface with lithium sources including lithium strips and ultra-thin lithium films having holes, separators and organic solvent electrolyte with lithium salt for high performance including high energy density, high power density, long cycle life, long DC life and wide temperature ranges. A method for making an LIC is also provided, where cell components important to optimize the electrochemical performance of LIC's are configured, said components include PE active material and binders, NE active material and binders, thickness/mass ratio of positive electrode (PE) to negative electrode (NE) active layers, PE and NE's size designs and layer numbers, types of material for Separators and NE pre-lithiation methods, NE pre-lithiation includes loading various lithium (Li) sources including lithium strips and ultra-thin lithium films having holes onto the surface of NE.