# US 2023/0069652 A1 · Non-woven-type organic electrode and stretchable battery using same

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- Number: US 2023/0069652 A1
- Document ID: US20230069652A1
- Status: Published application
- Kind: A1
- Application number: 17/544,711
- Filed: 2021-12-07
- Published: 2023-03-02
- Earliest claimed: 2021-08-26
- Assignees: Swemeka
- Applicants: Swemeka
- Inventors: Jae Kwang KIM
- Web page: https://patentgrep.com/patent/US20230069652A1

## CPC

- H01M 4/137: Electrodes based on electro-active polymers
- H01M 4/1399: of electrodes based on electro-active polymers
- H01M 4/587: for inserting or intercalating light metals
- H01M 4/602: {Polymers}
- H01M 4/604: {containing aliphatic main chain polymers}
- H01M 4/608: {containing heterocyclic rings}
- H01M 4/622: {being polymers}
- H01M 4/623: {fluorinated polymers}
- H01M 4/625: {Carbon or graphite}
- 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
- H01M 50/121: Organic material
- H01M 50/131: characterised by physical properties, e.g. gas permeability, size or heat resistance
- H01M 50/136: Flexibility or foldability
- H01M 2004/021: {Physical characteristics, e.g. porosity, surface area}
- H01M 2004/028: {Positive electrodes}
- H01M 2300/0082: Organic polymers
- H01M 2300/0085: Immobilising or gelification of electrolyte
- 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

The present disclosure relates to an organic electrode manufactured into a non-woven type by using an electro-spin method, a stretchable battery which is stretchable and shrinkable, utilizing same, and a method of manufacturing the battery.

## Claims

### Claim 1

An electrode comprising an organic polymer active material which is capable of performing electrochemical oxidation-reduction reaction, wherein
the electrode has a non-woven fabric-type comprising the organic polymer active material.

### Claim 2 (depends on 1)

The electrode of claim 1, wherein the organic polymer active material is a conductive polymer.

### Claim 3 (depends on 1)

The electrode of claim 1, wherein the organic polymer active material is one or more selected from the group consisting of organic polymers having a structure of conjugated hydrocarbon, conjugated amine, conjugated thioether, organodisulfide, thioether, nitroxyl radical, conjugated carbonyl, sulfonyloxy radical and quinone, and derivatives thereof.

### Claim 4 (depends on 1)

The electrode of claim 1, wherein the organic polymer active material is comprised in 40 to 80 wt% based on a total weight of the electrode.

### Claim 5 (depends on 1)

The electrode of claim 1, wherein the electrode is manufactured by mixing the organic polymer active material, a polymer binder and a carbon conductive agent and by an electro-spin method.

### Claim 6 (depends on 5)

The electrode of claim 5, wherein the polymer binder is one or more selected from the group consisting of polyvinylidene fluoride (PVdF)-based polymers or copolymers thereof, polyurethane (PU)-based polymers or copolymers thereof, polyethylene (PE)-based polymers or copolymers thereof, poly(vinylidenefluorideco-trifluoroethylene)-based polymers or copolymers thereof, polyethylene glycol (PEO)-based polymers or copolymers thereof, polyacrylonitrile(PAN)-based polymers or copolymers thereof, poly(methylmethacrylate) (PMMA)-based polymers or copolymers thereof, polyvinyl chloride-based polymers or copolymers thereof, polyvinyl pyrrolidone (PVP)-based polymers or copolymers thereof, polyimide (PI)-based polymers or copolymers thereof, polyethylene (PE)-based polymers or copolymers thereof, polyurethane (PU)-based polymers or copolymers thereof, polypropylene (PP)-based polymers or copolymers thereof, poly(propylene oxide) (PPO)-based polymers or copolymers thereof, poly(ethylene imine) (PEI)-based polymers or copolymers thereof, poly(ethylene sulfide) (PES)-based polymers or copolymers thereof, poly(vinyl acetate) (PVAc)-based polymers or copolymers thereof, poly(ethylenesuccinate) (PESc)-based polymers or copolymers thereof, polyester-based polymers or copolymers thereof, polyamine-based polymers or copolymers thereof, polysulfide-based polymers or copolymers thereof, siloxane-based polymers or copolymers thereof, styrene butadiene rubber (SBR)-based polymers or copolymers thereof, carboxymethyl cellulose (CMC)-based polymers or copolymers thereof, and derivatives thereof.

### Claim 7 (depends on 1)

The electrode of claim 1, wherein the carbon-based conductive agent is one or more selected from the group consisting of active carbon, graphene, carbon nanotube, acetylene carbon black, amorphous carbon, natural graphite, synthetic graphite, carbon black, ketjen black, and vapor-grown carbon fiber (VGCF).

### Claim 8 (depends on 1)

A stretchable battery, comprising:
the electrode according to claim 1; and
a gel polymer electrolyte.

### Claim 9 (depends on 8)

The stretchable battery of claim 8, wherein a polymer of the gel polymer electrolyte is one or more selected from the group consisting of polyvinylidene fluoride (PVdF)-based polymers or copolymers thereof, polyurethane (PU)-based polymers or copolymers thereof, polyethylene (PE)-based polymers or copolymers thereof, poly(vinylidenefluorideco-trifluoroethylene)-based polymers or copolymers thereof, polyethylene glycol (PEO)-based polymers or copolymers thereof, polyacrylonitrile(PAN)-based polymers or copolymers thereof, poly(methylmethacrylate) (PMMA)-based polymers or copolymers thereof, polyvinyl chloride-based polymers or copolymers thereof, polyvinyl pyrrolidone (PVP)-based polymers or copolymers thereof, polyimide (PI)-based polymers or copolymers thereof, polyethylene (PE)-based polymers or copolymers thereof, polyurethane (PU)-based polymers or copolymers thereof, polypropylene (PP)-based polymers or copolymers thereof, poly(propylene oxide) (PPO)-based polymers or copolymers thereof, poly(ethylene imine) (PEI)-based polymers or copolymers thereof, poly(ethylene sulfide) (PES)-based polymers or copolymers thereof, poly(vinyl acetate) (PVAc)-based polymers or copolymers thereof, poly(ethylenesuccinate) (PESc)-based polymers or copolymers thereof, polyester-based polymers or copolymers thereof, polyamine-based polymers or copolymers thereof, polysulfide-based polymers or copolymers thereof, siloxane-based polymers or copolymers thereof, styrene butadiene rubber (SBR)-based polymers or copolymers thereof, carboxymethyl cellulose (CMC)-based polymers or copolymers thereof, and derivatives thereof.

### Claim 10 (depends on 8)

The stretchable battery of claim 8, wherein the stretchable battery further comprises a stretchable exterior material containing a polymer resin layer for shielding the battery.

### Claim 11 (depends on 10)

The stretchable battery of claim 10, wherein the stretchable exterior material is one or more selected from the group consisting of polydimethylsiloxane (PDMS)-based polymers or copolymers thereof, polyurethane (PU)-based polymers or copolymers thereof, polyethylene (PE)-based polymers or copolymers thereof, polyvinylidene fluoride (PVdF)-based polymers or copolymers thereof, poly(vinylidenefluorideco-trifluoroethylene)-based polymers or copolymers thereof, polyethylene glycol (PEO)-based polymers or copolymers thereof, polyacrylonitrile(PAN)-based polymers or copolymers thereof, poly(methylmethacrylate) (PMMA)-based polymers or copolymers thereof, polyvinyl chloride-based polymers or copolymers thereof, polyvinyl pyrrolidone (PVP)-based polymers or copolymers thereof, polyimide (PI)-based polymers or copolymers thereof, polyethylene (PE)-based polymers or copolymers thereof, polyurethane (PU)-based polymers or copolymers thereof, polypropylene (PP)-based polymers or copolymers thereof, poly(propylene oxide) (PPO)-based polymers or copolymers thereof, poly(ethylene imine) (PEI)-based polymers or copolymers thereof, poly(ethylene sulfide) (PES)-based polymers or copolymers thereof, poly(vinyl acetate) (PVAc)-based polymers or copolymers thereof, poly(ethylenesuccinate) (PESc)-based polymers or copolymers thereof, polyester-based polymers or copolymers thereof, polyamine-based polymers or copolymers thereof, polysulfide-based polymers or copolymers thereof, siloxane-based polymers or copolymers thereof, styrene butadiene rubber (SBR)-based polymers or copolymers thereof, carboxymethyl cellulose (CMC)-based polymers or copolymers thereof, and derivatives thereof.

### Claim 12

A method of manufacturing a stretchable battery, the method comprising:
(a) preparing a solution comprising an organic polymer active material, a carbon-based conductive agent, a polymer binder and a solvent;
(b) applying an electric field to the solution for electro-spinning on a substrate to manufacture a non-woven-type electrode; and
(c) stacking the non-woven-type electrode and a gel polymer electrolyte in order.

### Claim 13 (depends on 12)

The method of manufacturing a stretchable battery of claim 12, further comprising in step (c), stacking a graphite-containing non-woven-type electrode on the gel polymer electrolyte.

### Claim 14 (depends on 13)

The method of manufacturing a stretchable battery of claim 13, wherein the graphite-containing non-woven-type electrode is manufactured by:
(a) preparing a solution comprising graphite, a polymer binder and a solvent; and
(b) applying an electric field to the solution for electro-spinning on a substrate to manufacture a non-woven-type electrode.

### Claim 15 (depends on 12)

The method of manufacturing a stretchable battery of claim 12 , wherein the electric field has a size of 10 to 30 kV.

### Claim 16 (depends on 12)

The method of manufacturing a stretchable battery of claim 12, wherein the organic polymer active material is one or more selected from the group consisting of organic polymers having a structure of conjugated hydrocarbon, conjugated amine, conjugated thioether, organodisulfide, thioether, nitroxyl radical, conjugated carbonyl, sulfonyloxy radical and quinone, and derivatives thereof.

### Claim 17 (depends on 14)

The method of manufacturing a stretchable battery of claim 14, wherein the electric field has a size of 10 to 30 kV.