GLASS FRIT, CRYSTALLIZED GLASS, METHOD FOR PRODUCING CRYSTALLIZED GLASS, SOLID ELECTROLYTE, AND LITHIUM ION SECONDARY BATTERY

    公开(公告)号:EP3875438A1

    公开(公告)日:2021-09-08

    申请号:EP19878115.5

    申请日:2019-10-02

    申请人: AGC INC.

    摘要: Provided are: a glass frit which is safe, has high ionic conductivity, for example, sufficiently practical ionic conductivity for in-vehicle use, and is capable of forming a solid electrolyte having excellent conformity to electrode surfaces; a crystallized glass; and a method for producing the crystallized glass. The glass frit is made of a glass containing: Li; at least one selected from the group consisting of B, Si, P, Ge, and Te; O; and at least one selected from the group consisting of F, Cl, Br, and I, and is characterized in that a crystal phase precipitates in the glass subjected to a heat treatment at a temperature of the glass transition point to the glass crystallization point to form a crystallized glass composed of the crystal phase and an amorphous phase, and the crystallized glass exhibits diffraction peaks at 2θ=22.8±0.5°, 2θ=32.1±0.5°, and 2θ=39.6±0.5° in a powder X-ray diffraction pattern obtained using Cu-Ka radiation.