阅读说明：本技术 正极材料和使用它的电池 (Positive electrode material and battery using the same ) 是由 上武央季 酒井章裕 佐佐木出 杉本裕太 宫崎晃畅 于 2018-12-12 设计创作，主要内容包括：本公开提供使充放电效率提高的正极材料和使用它的电池。正极材料含有正极活性物质和第1固体电解质材料,所述第1固体电解质材料含有Li、M和X,并且不含硫,M表示选自Li以外的金属元素和准金属元素中的至少一者,X表示选自Cl和Br中的至少一者和I,所述正极活性物质含有磷酸铁锂。(The present disclosure provides a positive electrode material that improves charge-discharge efficiency and a battery using the same. The positive electrode material contains a positive electrode active material and a1 st solid electrolyte material, wherein the 1 st solid electrolyte material contains Li, M and X and does not contain sulfur, M represents at least one selected from a metal element other than Li and a metalloid element, X represents I and at least one selected from Cl and Br, and the positive electrode active material contains lithium iron phosphate.)

1. A positive electrode material comprising a positive electrode active material and a No. 1 solid electrolyte material,

the 1 st solid electrolyte material contains Li, M and X, and contains no sulfur,

m represents at least one selected from the group consisting of metal elements other than Li and metalloid elements,

x represents I and at least one selected from Cl and Br,

the positive electrode active material contains lithium iron phosphate.

2. The positive electrode material according to claim 1, wherein the 1 st solid electrolyte material is represented by the following composition formula (1),

Li_αM_βX_γformula (1)

Wherein α, β, and γ each independently represent a value greater than 0.

3. The positive electrode material as claimed in claim 1 or 2, wherein M contains yttrium.

4. The positive electrode material according to claim 3, wherein the 1 st solid electrolyte material is Li₃YBrCl₄I or Li₃YBr₂Cl₂I₂。

5. A battery, comprising:

a positive electrode comprising the positive electrode material according to any one of claims 1 to 4,

A negative electrode, and

an electrolyte layer disposed between the positive electrode and the negative electrode.

6. The battery of claim 5, the electrolyte layer comprising a sulfide solid electrolyte.

7. The battery according to claim 5 or 6, wherein the electrolyte layer contains a2 nd solid electrolyte material,

the 2 nd solid electrolyte material is represented by the following composition formula (2),

Li_α’M’_β’X’_γ’formula (2)

Wherein α ', β ' and γ ' each independently represent a value greater than 0,

m' contains at least one selected from the group consisting of metal elements other than Li and metalloid elements,

x' contains at least one selected from Cl and Br.

8. The battery of claim 7, wherein M' comprises yttrium.

9. The battery of claim 8, the 2 nd solid electrolyte material being Li_2.7Y_1.1Cl₆。

Technical Field

The present disclosure relates to a positive electrode material and a battery using the same.

Background

Patent document 1 discloses a battery using an indium-containing halide as a solid electrolyte.

Disclosure of Invention

Problems to be solved by the invention

Drawings

Fig. 1 shows a cross-sectional view of a positive electrode material 1000 in embodiment 1.

Fig. 2 shows a cross-sectional view of the battery 2000 in embodiment 2.

Detailed Description

Embodiments of the present disclosure are described below with reference to the drawings.

(embodiment mode 1)