# US 12,183,927 B2 · Electrode material and battery

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- Number: US 12,183,927 B2
- Document ID: US12183927B2
- Status: Granted
- Kind: B2
- Application number: 18/455,282
- Filed: 2023-08-24
- Published: 2023-12-14
- Granted: 2024-12-31
- Earliest claimed: 2018-01-26
- Assignees: Panasonic Intellectual Property Management Co., Ltd.
- Applicants: Panasonic Intellectual Property Management Co., Ltd.
- Inventors: Tatsuya Oshima; Yuta Sugimoto; Izuru Sasaki; Akinobu Miyazaki
- Web page: https://patentgrep.com/patent/US12183927B2

## CPC

- H01M 4/62: Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01B 1/06: mainly consisting of other non-metallic substances
- H01M 4/133: Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M 4/366: {as layered products}
- H01M 4/587: for inserting or intercalating light metals
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/0562: Solid materials
- H01M 10/0565: Polymeric materials, e.g. gel-type or solid-type
- H01M 2004/027: {Negative electrodes}
- H01M 2004/028: {Positive electrodes}
- H01M 2300/0068: inorganic
- H01M 2300/0071: Oxides
- H01M 2300/008: Halides
- H01M 2300/0082: Organic polymers
- H01M 2300/0094: in the form of layered products, e.g. coatings
- 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

An electrode material includes an electrode active material, a first solid electrolyte material, and a coating material. The first solid electrolyte material includes Li, M, and X and does not include sulfur, where M includes at least one selected from the group consisting of metal elements other than Li and metalloid elements, and X is at least one selected from the group consisting of Cl, Br, and I. The coating material is located on the surface of the electrode active material.

## Claims

### Claim 1

An electrode material comprising:
an electrode active material;
a first solid electrolyte material; and
a coating material, wherein
the first solid electrolyte material includes Li, M, and X,
where
M includes at least one selected from the group consisting of metal elements other than Li and metalloid elements; and
X is at least one selected from the group consisting of Cl, Br, and I,
the first solid electrolyte material does not include sulfur,
the coating material is located on a surface of the electrode active material,
the coating material is a polymer solid electrolyte, and
a weight ratio of the coating material to the electrode active material is in a range from 13 wt % to 25 wt %.

### Claim 2 (depends on 1)

The electrode material according to claim 1, wherein
the polymer solid electrolyte is a composite compound of polyethylene oxide and a lithium salt.

### Claim 3 (depends on 2)

The electrode material according to claim 2, wherein
the lithium salt is lithium bis(trifluoromethanesulfonyl)imide.

### Claim 4 (depends on 1)

The electrode material according to claim 1, wherein the first solid electrolyte material is represented by the following compositional formula (1):
LiαMβXγ Formula (1)
where α, β, and γ are all values larger than 0.

### Claim 5 (depends on 4)

The electrode material according to claim 4, wherein
2≤γ/α≤2.4
is satisfied.

### Claim 6 (depends on 4)

The electrode material according to claim 4, wherein
M includes yttrium.

### Claim 7 (depends on 4)

The electrode material according to claim 4, wherein
X includes chlorine.

### Claim 8 (depends on 4)

The electrode material according to claim 4, wherein
2.5≤α≤3,
1≤β≤1.1, and
γ=6
are satisfied.

### Claim 9 (depends on 1)

The electrode material according to claim 1, wherein
the electrode active material is graphite.

### Claim 10 (depends on 1)

The electrode material according to claim 1, wherein
the electrode active material is a positive electrode active material.

### Claim 11 (depends on 1)

The electrode material according to claim 1, wherein
the electrode active material is a negative electrode active material.

### Claim 12 (depends on 1)

A battery comprising:
a positive electrode;
a negative electrode; and
an electrolyte layer disposed between the positive electrode and the negative electrode, wherein
at least one of the positive electrode or the negative electrode includes the electrode material according to claim 1.

### Claim 13 (depends on 12)

The battery according to claim 12, wherein
the negative electrode includes the electrode material.

### Claim 14 (depends on 12)

The battery according to claim 12, wherein
the positive electrode includes the electrode material.

### Claim 15 (depends on 12)

The battery according to claim 12, wherein
the electrolyte layer includes the first solid electrolyte material.

### Claim 16 (depends on 12)

The battery according to claim 12, wherein
the electrolyte layer includes a halide solid electrolyte material different from the first solid electrolyte material.

### Claim 17

An electrode material comprising:
an electrode active material;
a first solid electrolyte material; and
a coating material, wherein:
the first solid electrolyte material includes Li, M, and X,
where
M includes at least one selected from the group consisting of metal elements other than Li and metalloid elements; and
X is at least one selected from the group consisting of Cl, Br, and I,
the first solid electrolyte material does not include sulfur,
the coating material is located on a surface of the electrode active material,
the coating material is a polymer solid electrolyte,
the first solid electrolyte material is represented by the following compositional formula (1):
LiαMβXγ Formula (1)
where
α, β, and γ are all values larger than 0, and
2.5≤α≤3,
1≤β≤1.1, and
γ=6
are satisfied.

### Claim 18 (depends on 17)

The electrode material according to claim 17, wherein
M includes yttrium.

### Claim 19 (depends on 17)

The electrode material according to claim 17, wherein
X includes chlorine.

### Claim 20 (depends on 17)

The electrode material according to claim 17, wherein
the polymer solid electrolyte is a composite compound of polyethylene oxide and a lithium salt.

### Claim 21 (depends on 20)

The electrode material according to claim 20, wherein
the lithium salt is lithium bis(trifluoromethanesulfonyl)imide.