# US 2019/0356018 A1 · Solid-State Electrolytes Based on Lithium Halides for All-Solid-State Lithium-ion Battery Operating at Elevated Temperatures

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- Number: US 2019/0356018 A1
- Document ID: US20190356018A1
- Status: Published application
- Kind: A1
- Application number: 16/413,290
- Filed: 2019-05-15
- Published: 2019-11-21
- Earliest claimed: 2018-05-16
- Assignees: South Dakota Board of Regents
- Applicants: South Dakota Board of Regents
- Inventors: Alevtina Smirnova; Matthew Dondelinger; Joel Swanson
- Web page: https://patentgrep.com/patent/US20190356018A1

## CPC

- H01M 10/0562: Solid materials
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 2300/008: Halides
- Y02E 60/10: Energy storage using batteries
- 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

## Abstract

Solid-state lithium-ion batteries with a solid-state antiperovskite electrolyte are disclosed. In one aspect, a solid-state Li3ClO electrolyte is deposited on a Cu-supported thin carbon working electrode using a delamination approach for half-cells with lithium metal as a reference electrode.

## Claims

### Claim 1

A method for preparing solid-state electrolyte based on Lithium Halides for solid-state lithium-ion electrochemical cells.

### Claim 2 (depends on 1)

The method of claim 1 further comprising:
charging and discharging the solid-state electrolyte at elevated temperatures.

### Claim 3 (depends on 1)

The method of claim 1, wherein the electrolyte comprises a solid-state antiperovskite electrolyte, such as Li3ClO.

### Claim 4 (depends on 1)

The method of claim 1 further comprising:
processing the solid-state electrolyte from a solid-state Li3ClO superionic glass-ceramic electrolyte.

### Claim 5 (depends on 4)

The method of claim 4 further comprising:
processing the solid-state Li3ClO electrolyte by depositing on a Cu-supported thin carbon working electrode using a delamination approach.

### Claim 6 (depends on 1)

The method of claim 1, wherein the electrochemical cells comprise a CR2025 half-cell.

### Claim 7 (depends on 1)

The method of claim 1 further comprising:
processing the solid-state electrolyte using a C/Cu working electrode and lithium metal as a reference electrode.

### Claim 8 (depends on 2)

The method of claim 2, wherein the solid-state electrolyte is charged and discharged at a temperature range of 50° C. to 100° C.

### Claim 9

A solid-state electrolyte based on Lithium Halides for solid-state lithium-ion electrochemical cells is disclosed and claimed.

### Claim 10 (depends on 9)

The solid-state electrolyte of claim 9 comprising a solid-state Li3ClO superionic glass-ceramic electrolyte.

### Claim 11 (depends on 9)

The solid-state electrolyte of claim 9 wherein the electrochemical cell comprises a CR2025 half-cell.

### Claim 12 (depends on 9)

The solid-state electrolyte of claim 9 having an operating charging and discharging temperature range from at least 50° C. to 100° C.