# US 2021/0280909 A1 · Methods of applying printable lithium compositions for forming battery electrodes

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

- Number: US 2021/0280909 A1
- Document ID: US20210280909A1
- Status: Published application
- Kind: A1
- Application number: 17/324,499
- Filed: 2021-05-19
- Published: 2021-09-09
- Earliest claimed: 2018-03-22
- Assignees: FMC Lithium USA Corp.
- Applicants: FMC Lithium USA Corp.
- Inventors: Kenneth Brian Fitch; Marina Yakovieva; William Arthur Greeter, JR.; Jian Xia
- Web page: https://patentgrep.com/patent/US20210280909A1

## CPC

- H01M 10/0562: Solid materials
- B22F 1/10: Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F 1/103: containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
- B22F 1/107: containing organic material comprising solvents, e.g. for slip casting
- H01M 4/0404: {by coating on electrode collectors}
- H01M 4/0411: {by extrusion}
- H01M 4/0414: {by screen printing}
- H01M 4/131: Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
- H01M 4/134: Electrodes based on metals, Si or alloys
- H01M 4/139: Processes of manufacture
- H01M 4/1395: of electrodes based on metals, Si or alloys
- H01M 4/364: {as mixtures}
- H01M 4/382: {Lithium (H01M4/405 takes precedence)}
- H01M 4/405: {Alloys based on lithium}
- H01M 4/485: of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence)
- H01M 4/587: for inserting or intercalating light metals
- H01M 4/602: {Polymers}
- H01M 4/622: {being polymers}
- H01M 4/624: {Electric conductive fillers}
- H01M 4/625: {Carbon or graphite}
- H01M 10/052: Li-accumulators
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/0565: Polymeric materials, e.g. gel-type or solid-type
- H01M 10/0585: of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
- B22F 3/20: by extruding
- B22F 3/22: for producing castings from a slip
- B22F 2007/042: {characterised by the layer forming method}
- B22F 2301/054: Alkali metals, i.e. Li, Na, K, Rb, Cs, Fr
- B22F 2302/40: Carbon, graphite
- C22C 2026/002: {Carbon nanotubes}
- H01M 4/0407: {by coating on an electrolyte layer}
- H01M 4/0409: {by a doctor blade method, slip-casting or roller coating}
- H01M 4/366: {as layered products}
- H01M 4/626: {Metals}
- H01M 6/40: Printed batteries {, e.g. thin film batteries}
- H01M 2004/027: {Negative electrodes}
- 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
- B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- C22C: ALLOYS (treatment of alloys C21D, C22F)
- 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

A method for depositing lithium on a substrate to form an electrode is provided. The method includes applying a printable lithium composition comprised of lithium metal powder, a polymer binder compatible with the lithium metal powder, a rheology modifier compatible with the lithium metal powder and a solvent compatible with the lithium metal powder and with the polymer binder, to a substrate.

## Claims

### Claim 1

A method for depositing lithium on a substrate to form an electrode comprising
applying a printable lithium composition comprised on a solution basis of 5 to 50 percent of lithium metal powder, 0.1 to 20 percent of a polymer binder compatible with the lithium metal powder, 0.1 to 30 percent of a rheology modifier compatible with the lithium metal powder and 50 to 95 percent of a nonpolar solvent compatible with the lithium metal powder and with the polymer binder, to a substrate.

### Claim 2 (depends on 1)

The method of claim 1, wherein applying the printable lithium composition to the substrate comprises printing the printable lithium composition onto the substrate with a slot die print head.

### Claim 3 (depends on 2)

The method of claim 2 further including loading the printable lithium composition to the print head.

### Claim 4 (depends on 2)

The method of claim 2 further including
loading the printable lithium composition into a cartridge,
loading the cartridge into a dispenser attached to a slot die print head, and
mounting the slot die head onto a printer for printing the printable lithium composition onto the substrate.

### Claim 5 (depends on 1)

The method of claim 1, wherein applying the printable lithium composition to the substrate comprises extruding the printable lithium composition onto the substrate.

### Claim 6 (depends on 5)

The method of claim 5, wherein extruding the printable lithium composition onto the substrate comprises inserting the printable lithium composition into an extruder and extruding the printable lithium composition out of a nozzle.

### Claim 7 (depends on 5)

The method of claim 5, wherein extruding the printable lithium composition onto the substrate comprises extruding the printable lithium composition onto the substrate as a pattern.

### Claim 8 (depends on 1)

The method of claim 1, wherein applying the printable lithium composition comprises applying coating to a roller and passing the substrate through the roller.

### Claim 9 (depends on 1)

The method of claim 1, wherein applying the printable lithium composition to the substrate comprises applying the printable lithium composition onto an anode.

### Claim 10 (depends on 9)

The method of claim 9 further including the step of forming a battery comprised of the printed anode.

### Claim 11 (depends on 9)

The method of claim 9, wherein applying the printable lithium composition onto an anode comprises applying the printable lithium composition onto a current collector at a thickness between about 10 microns to about 200 microns.

### Claim 12 (depends on 1)

The method of claim 1, wherein applying the printable lithium composition to the substrate comprises applying the printable lithium composition as a monolithic coating forming an anode for a solid-state battery.

### Claim 13 (depends on 1)

The method of claim 1, wherein applying the printable lithium composition to the substrate comprises applying the printable lithium composition to a solid electrolyte for a solid-state battery.

### Claim 14 (depends on 1)

The method of claim 1, wherein the printable lithium composition includes a solvent compatible with the lithium powder and with the polymer binder.

### Claim 15

A method for depositing lithium on a substrate to form an electrode comprising
printing a printable lithium composition comprised on a solution basis of 5 to 50 percent of lithium metal powder, 0.1 to 20 percent of a polymer binder compatible with the lithium metal powder, 0.1 to 30 percent of a rheology modifier compatible with the lithium metal powder and 50 to 95 percent of a nonpolar solvent compatible with the lithium metal powder and with the polymer binder, to a substrate with a slot die print head.

### Claim 16 (depends on 15)

The method of claim 15 further including
loading the printable lithium composition into a cartridge,
loading the cartridge into a dispenser attached to a slot die print head, and
mounting the slot die head onto a printer for printing the printable lithium composition onto the substrate.

### Claim 17 (depends on 15)

The method of claim 15, wherein applying the printable lithium composition to the substrate comprises applying the printable lithium composition onto an anode, cathode, solid electrolyte, current collector, or carrier material.

### Claim 18 (depends on 17)

The method of claim 17 further including the step of forming a battery comprised of the anode, cathode, solid electrolyte, current collector, or carrier material.

### Claim 19

A method for depositing lithium on a substrate to form an electrode comprising
extruding a printable lithium composition comprised on a solution basis of 5 to 50 percent of lithium metal powder, 0.1 to 20 percent of a polymer binder compatible with the lithium metal powder, 0.1 to 30 percent of a rheology modifier compatible with the lithium metal powder and 50 to 95 percent of a nonpolar solvent compatible with the lithium metal powder and with the polymer binder onto a substrate.

### Claim 20 (depends on 19)

The method of claim 19, wherein extruding the printable lithium composition onto the substrate comprises inserting the printable lithium composition into an extruder and extruding the printable lithium composition out of a nozzle.

### Claim 21 (depends on 19)

The method of claim 19, wherein extruding the printable lithium composition onto the substrate comprises extruding the printable lithium composition onto the substrate as a pattern.

### Claim 22 (depends on 19)

The method of claim 19, wherein applying the printable lithium composition to the substrate comprises applying the printable lithium composition onto an anode, cathode, solid electrolyte, current collector, or carrier material.

### Claim 23 (depends on 22)

The method of claim 22 further including the step of forming a battery comprised of the anode, cathode, solid electrolyte, current collector, or carrier material.

### Claim 24

A method for depositing lithium on a substrate to form an electrode comprising
roller coating a substrate with a printable lithium composition comprised on a solution basis of 5 to 50 percent of lithium metal powder, 0.1 to 20 percent of a polymer binder compatible with the lithium metal powder, 0.1 to 30 percent of a rheology modifier compatible with the lithium metal powder and 50 to 95 percent of a nonpolar solvent compatible with the lithium metal powder and with the polymer binder, to a substrate.

### Claim 25 (depends on 24)

The method of claim 24, wherein roller coating the substrate comprises applying coating to a roller and passing the substrate over the roller.

### Claim 26 (depends on 24)

The method of claim 24, wherein applying the printable lithium composition to the substrate comprises applying the printable lithium composition onto an anode, cathode, solid electrolyte, current collector, or carrier material.

### Claim 27 (depends on 26)

The method of claim 26 further including the step of forming a battery comprised of the anode, cathode, solid electrolyte, current collector, or carrier material.