# US 2023/0411684 A1 · Ion-conductive solid and all-solid-state battery

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- Number: US 2023/0411684 A1
- Document ID: US20230411684A1
- Status: Published application
- Kind: A1
- Application number: 18/460,974
- Filed: 2023-09-05
- Published: 2023-12-21
- Earliest claimed: 2021-05-31
- Assignees: Canon Optron, Inc.
- Applicants: Canon Optron, Inc.
- Inventors: Saori HASHIMOTO; Yoshitaka SHIBA; Noriko SAKAMOTO; Takeshi KOBAYASHI; Toyoki OKUMURA; Hironori KOBAYASHI; Tomonari TAKEUCHI
- Web page: https://patentgrep.com/patent/US20230411684A1

## CPC

- H01M 10/0562: Solid materials
- H01B 1/06: mainly consisting of other non-metallic substances
- H01M 4/13: Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M 4/525: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
- H01M 4/62: Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M 10/052: Li-accumulators
- H01M 2300/0071: Oxides
- H01M 2300/0077: based on zirconium oxide
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Provided are: an ion-conductive solid which can be produced by heat treatment at a low temperature and which has high ion conductivity; and, an all-solid-state battery having the ion-conductive solid. An ion-conductive solid containing an oxide represented by the general formula Li6-3a-2b-c-dYi1-c-dAlaMgbZrcCedB3O9; and, an all-solid-state battery having at least a positive electrode, a negative electrode, and an electrolyte, at least one element selected from the group consisting of the positive electrode, the negative electrode, and the electrolyte containing the ion-conductive solid (In the formula, a is such that 0.000≤a≤0.800, b is such that 0.000≤b≤0.800, c is such that 0.000≤c≤0.400, d is such that 0.000≤d≤0.400, and a and b are real numbers satisfying 0.005≤a+b≤0.800.).

## Claims

### Claim 1

An ion-conductive solid comprising an oxide represented by Formula Li6-3a-2b-c-dY1-c-dAlaMgbZrcCedB3O9,
wherein in the formula, a, b, c and d are real numbers satisfying 0.000≤a≤0.800, 0.000≤b≤0.800, 0.000≤c≤0.400, 0.000≤d≤0.400, and 0.005≤a+b≤0.800.

### Claim 2 (depends on 1)

The ion-conductive solid according to claim 1, wherein the c and the d are 0.000≤c≤0.200 and 0.000≤d≤0.200.

### Claim 3 (depends on 1)

The ion-conductive solid according to claim 1, wherein the a is 0.000≤a≤0.400.

### Claim 4 (depends on 1)

The ion-conductive solid according to claim 1, wherein the b is 0.000≤b≤0.400.

### Claim 5 (depends on 1)

The ion-conductive solid according to claim 1, wherein the a+b is 0.010≤a+b≤0.800.

### Claim 6 (depends on 1)

The ion-conductive solid according to claim 1, wherein the a+b is 0.010≤a+b≤0.400.

### Claim 7 (depends on 1)

The ion-conductive solid according to claim 1, wherein the a, the b, the c and the d are 0.000≤c≤0.200, 0.000≤d≤0.200 and 0.010≤a+b≤0.100.

### Claim 8 (depends on 1)

An all-solid-state battery, comprising at least:
a positive electrode;
a negative electrode; and
an electrolyte,
wherein at least one selected from the group consisting of the positive electrode, the negative electrode and the electrolyte comprises the ion-conductive solid according to claim 1.

### Claim 9 (depends on 8)

The all-solid-state battery according to claim 8, wherein at least the electrolyte comprises the ion-conductive solid.