Titles:
A high-voltage PEO-based solid electrolyte and its preparation method and application
一种高电压PEO基固态电解质及其制备方法与应用
Abstracts:
The invention belongs to the field of lithium battery solid electrolytes, and discloses a high-voltage PEO-based solid electrolyte, a preparation method and an application thereof. The components of the high-voltage PEO-based solid electrolyte include polyethylene oxide, lithium salt, tetraethylene glycol dimethyl ether, and high-voltage additives. The high-voltage PEO-based solid electrolyte of the present invention significantly improves the lithium ion conductivity at room temperature, and at the same time reduces the interface impedance with the electrode, and improves the electrochemical stability window of the PEO-based solid electrolyte by reducing the proportion of -OH in the solid electrolyte ; A stable and high ion conductivity CEI film is formed on the positive electrode interface to further improve the high voltage stability of the electrolyte. The preparation method of the invention has simple preparation process, easy operation, low preparation cost and great commercial prospect. The high-voltage PEO-based solid electrolyte of the present invention can be used to assemble lithium-ion batteries, and can exhibit high discharge capacity and excellent cycle stability at room temperature.
Title:
Hybrid solid electrolyte and battery comprising hybrid solid electrolyte
Abstract:
Aspects of the present disclosure relate to a metal ion battery (1), hybrid solid electrolyte (4) layer, and manufacturing methods The battery comprises an anode (2), a cathode (2) and a hybrid solid electrolyte (4). The hybrid solid electrolyte comprises: a polymer matrix (5), a metal salt (6) and at least first and second dispersed filler materials. The first filler material comprises inorganic high-k dielectric particles (8) . The second filler material comprises solid state electrolyte fibers (9). The second filler can consist of a metal ion conductive inorganic composition.
Titles:
Porous resin sheet with solid electrolyte layer
固体電解質層を有する多孔質樹脂シート
Abstracts:
The present invention provides a porous resin sheet capable of improving battery performance when used as a separator for a lithium secondary battery. A solid containing composite metal oxide particles containing at least Li, La, and Zr and a binder that binds the composite metal oxide particles on at least one side of a porous resin sheet made of aromatic polyimide. An electrolyte layer is provided. The binder is a crosslinked polymer having a structure in which the main chain is a linear ether skeleton and the ether skeleton is partially branched. The solid electrolyte layer may be formed using a slurry composition containing the composite metal oxide particles, the polymer, and at least one solvent selected from cyclohexanone, methylethylketone, toluene, and methylcyclohexane. preferable. [Selection drawing] Fig. 2
