Granted Patent B2

US 12,206,111 · App. 18/142,506 · Granted Jan 21, 2025

Inventors: Hiroki Kamitake (Osaka, JP); Akihiro Sakai (Nara, JP); Izuru Sasaki (Kyoto, JP); Yuta Sugimoto (Hyogo, JP); Akinobu Miyazaki (Osaka, JP)

Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

H01M4/5825H01M4/136H01M4/62H01M10/052H01M10/0525H01M10/0562H01M50/431H01M2004/028H01M2300/0068H01M2300/008H01M2300/0094

Abstract

Claims (20)

1. A battery comprising:

a cathode including a cathode material comprising:

a cathode active material comprising lithium iron phosphate; and

a first solid electrolyte material including Li, Y, and X, and not including sulfur;

an anode; and

an electrolyte layer including a second solid electrolyte material provided between the cathode and the anode, wherein

the first solid electrolyte material is represented by the following composition formula:

Li 6−3d Y d X 6 ,

wherein

X represents at least one selected from the group consisting of Cl and Br, and I, and

0<d<2 is satisfied, and

the second solid electrolyte material is represented by the following composition formula:

Li 6−3d′ Y d′ X 6 ,

wherein

0<d′<2 is satisfied, and

X′ includes at least one selected from the group consisting of Cl and Br.

2. The battery according to claim 1 , wherein

the first solid electrolyte material is Li 3 YBrCl 4 I or Li 3 YBr 2 Cl 2 I 2 .

3. The battery according to claim 1 , wherein

the second solid electrolyte material is Li 2.7 Y 1.1 Cl 6 .

Priority Claims (1)

Continuity (3)

References Cited (182)