# US 10,483,586 B2 · All-solid-state battery using sodium ion intercalation cathode with Li/Na exchanging layer

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,483,586 B2
- Document ID: US10483586B2
- Status: Granted
- Kind: B2
- Application number: 15/771,566
- Filed: 2015-12-17
- Published: 2018-11-01
- Granted: 2019-11-19
- Earliest claimed: 2015-12-17
- Assignees: Toyota Motor Europe
- Applicants: Toyota Motor Europe
- Inventors: Yuki Katoh; Jun Yoshida
- Web page: https://patentgrep.com/patent/US10483586B2

## CPC

- H01M 10/0562: Solid materials
- H01M 10/052: Li-accumulators
- H01M 10/054: Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
- H01M 2300/0068: inorganic
- H01M 2300/0091: in the form of mixtures
- H01M 2300/0094: in the form of layered products, e.g. coatings
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An all-solid-state battery includes a mixture layer which has a physical mixture of a sulfide-based sodium-containing solid electrolyte material and a sulfide-based lithium-containing solid electrolyte material.

## Claims

### Claim 1

An all-solid-state battery comprising the following elements in order:
a positive electrode active material layer (5) comprising a sodium-containing cathode material;
a solid electrolyte layer (4) comprising a sulfide-based sodium-containing solid electrolyte material;
a sulfide-based mixture layer (3);
a solid electrolyte layer (2) comprising a sulfide-based lithium-containing solid electrolyte material;
a negative electrode active material layer (1) comprising a lithium-containing anode material,
wherein the mixture layer (3) comprises a physical mixture of a sulfide-based sodium-containing solid electrolyte material and a sulfide-based lithium-containing solid electrolyte material.

### Claim 2 (depends on 1)

The all-solid-state battery according to claim 1, wherein the sulfide-based sodium-containing solid electrolyte material, contained in layer (4) and/or as part of the mixture of layer (3), contains, in addition to sodium (Na) and sulfur (S), one or more of the elements phosphorus (P), silicon (Si) and germanium (Ge).

### Claim 3 (depends on 1)

The all-solid-state battery according to claim 1, wherein the sulfide-based sodium-containing solid electrolyte material, contained in layer (4) and/or as part of the mixture of layer (3), is one or materials selected from the group consisting of: Na3PS4, Na3PS4—Na4SiS4, Na2S—P2S5, Na2S—SiS2, and Na2S—GeS2.

### Claim 4 (depends on 1)

The all-solid-state battery according to claim 1, wherein the sulfide-based lithium-containing solid electrolyte material, contained in layer (2) and/or as part of the mixture of layer (3), contains the element phosphorus (P) in addition to lithium (Li) and sulfur (S).

### Claim 5 (depends on 1)

The all-solid-state battery according to claim 1, wherein the sulfide-based lithium-containing solid electrolyte material, contained in layer (2) and/or as part of the mixture of layer (3), is one or materials selected from the group consisting of: Li3PS4, LiX—Li3PS4 (X=Cl, Br, I), Li10SiP2S12, Li10GeP2S12, Li10SnP2S12, and Li6PS5X (X=Cl, Br, I).

### Claim 6 (depends on 1)

The all-solid-state battery according to claim 1, wherein the atomic ratio of Na:Li is the mixture layer is expressed as y:1-y, wherein 0.1≤y≤0.9.

### Claim 7 (depends on 1)

The all-solid-state battery according to claim 1, wherein the mixture layer comprises a mixture of Na3PS4 and Li3PS4, and the weight ratio Na3PS4:Li3PS4 expressed as x 100-x (in wt %) is 10≤x≤90.

### Claim 8 (depends on 1)

The all-solid-state battery according to claim 1, wherein the sodium-containing cathode material of the positive electrode active material layer (5) is one or materials selected from the group consisting of: a compound which has a layer structure denoted by general formula NaMO2, wherein M is at least one kind of transition metal element, Ni, Mn, and/or Co; a compound denoted by general formula Na3M2(PO4)3, wherein M is at least one kind of transition metal element, V, and/or Cr; a compound which has a polyanion of P2O7 in its structure denoted by general formula NaxM3(PO4)2P2O7 wherein M is at least one kind of transition metal element, Ni and/or Mn; a compound which has a fluorine in its structure denoted by general formula Na3M2(PO4)2F3 wherein M is at least one kind of transition metal element.

### Claim 9 (depends on 1)

The all-solid-state battery according to claim 1, wherein the lithium-containing anode material of the negative electrode active material layer (1) is one or materials selected from the group consisting of: carbon active material; black lead; meso carbon micro beads (MCMB); highly ordered/oriented pyrolytic graphite (HOPG); hard carbon; soft carbon; an alloy; In; Al; Si; Sn; oxide stock materials.