阅读说明：本技术 固体电解质材料和电池 (Solid electrolyte material and battery ) 是由 酒井章裕 浅野哲也 境田真志 西尾勇祐 宫崎晃畅 长谷川真也 于 2018-11-13 设计创作，主要内容包括：固体电解质材料包含Li、Y、Br和Cl,在使用Cu-Kα作为辐射源的X射线衍射图中,在衍射角2θ的值为13.6°～14.4°、27.4°～28.5°、31.8°～32.9°、45.4°～47.5°、54.0°～56.1°、56.6°～59.0°的全部范围内都存在峰。(The solid electrolyte material contains Li, Y, Br and Cl, and has peaks in all ranges of diffraction angle 2 theta values of 13.6-14.4 DEG, 27.4-28.5 DEG, 31.8-32.9 DEG, 45.4-47.5 DEG, 54.0-56.1 DEG, and 56.6-59.0 DEG in an X-ray diffraction pattern using Cu-K alpha as a radiation source.)

1. A solid electrolyte material which is a solid electrolyte material,

comprising Li, Y, Br and Cl,

in an X-ray diffraction pattern using Cu-K alpha as a radiation source, peaks are present in all ranges of diffraction angle 2 theta values of 13.6 DEG to 14.4 DEG, 27.4 DEG to 28.5 DEG, 31.8 DEG to 32.9 DEG, 45.4 DEG to 47.5 DEG, 54.0 DEG to 56.1 DEG, and 56.6 DEG to 59.0 deg.

2. The solid electrolyte material according to claim 1,

in an X-ray diffraction pattern using Cu-Kalpha as a radiation source, peaks are present in all ranges of diffraction angle 2 theta values of 13.8-14.2 DEG, 27.8-28.4 DEG, 32.3-32.8 DEG, 46.2-47.2 DEG, 54.8-56.0 DEG, and 57.5-58.8 deg.

3. A battery is provided with:

a positive electrode,

Negative electrode, and

an electrolyte layer provided between the positive electrode and the negative electrode,

at least one of the positive electrode, the negative electrode, and the electrolyte layer comprises the solid electrolyte material according to claim 1 or 2.

Technical Field

The present disclosure relates to a solid electrolyte material and a battery.

Background

Patent document 1 discloses an all-solid-state battery using a sulfide solid electrolyte.

Patent document 2 discloses an all-solid-state battery using an indium-containing halide as a solid electrolyte.

Non-patent document 1 discloses Li₃YBr₆。

Disclosure of Invention

In the prior art, it is desirable to realize a solid electrolyte material having high lithium ion conductivity.

A solid electrolyte material according to an embodiment of the present disclosure contains Li, Y, Br, and Cl, and has peaks in all ranges of diffraction angle 2 θ values of 13.6 ° to 14.4 °, 27.4 ° to 28.5 °, 31.8 ° to 32.9 °, 45.4 ° to 47.5 °, 54.0 ° to 56.1 °, and 56.6 ° to 59.0 ° in an X-ray diffraction pattern using Cu — K α as a radiation source.

According to the present disclosure, a solid electrolyte material having high lithium ion conductivity can be realized.

Drawings

Fig. 1 is a conceptual diagram showing the crystal structure of LiBr.

FIG. 2 shows Li₃ErBr₆A conceptual view of the crystal structure of (a).

Fig. 3 is a sectional view showing a schematic structure of a battery in embodiment 2.

Fig. 4 is a schematic diagram showing an evaluation method of ion conductivity.

FIG. 5 shows Li₃YBr₃Cl₃A pattern of peaks in XRD.

FIG. 6 shows Li after annealing treatment₃YBr₃Cl₃A pattern of peaks in XRD.

Fig. 7 is a graph showing the temperature dependence of the ionic conductivity of the solid electrolyte.

Fig. 8 is a graph showing initial discharge characteristics.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

(embodiment mode 1)