WO2014182058A1 - 케이블형 이차전지 - Google Patents
케이블형 이차전지 Download PDFInfo
- Publication number
- WO2014182058A1 WO2014182058A1 PCT/KR2014/004042 KR2014004042W WO2014182058A1 WO 2014182058 A1 WO2014182058 A1 WO 2014182058A1 KR 2014004042 W KR2014004042 W KR 2014004042W WO 2014182058 A1 WO2014182058 A1 WO 2014182058A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- secondary battery
- separation layer
- type secondary
- cable
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0468—Compression means for stacks of electrodes and separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/626—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/668—Composites of electroconductive material and synthetic resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/74—Meshes or woven material; Expanded metal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/75—Wires, rods or strips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/78—Shapes other than plane or cylindrical, e.g. helical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
- H01M50/469—Separators, membranes or diaphragms characterised by their shape tubular or cylindrical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/125—Cells or batteries with wound or folded electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/28—Construction or manufacture
- H01M10/286—Cells or batteries with wound or folded electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/025—Electrodes composed of, or comprising, active material with shapes other than plane or cylindrical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0085—Immobilising or gelification of electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a cable type secondary battery free of deformation, and more particularly, to a cable type secondary battery including an internal electrode support and having an electrode and a separation layer integrated.
- a secondary battery is a device that converts external electrical energy into chemical energy and stores it and generates electricity when needed.
- the term “rechargeable battery” is also used to mean that it can be charged multiple times.
- Commonly used secondary batteries include lead storage batteries, nickel cadmium batteries (NiCd), nickel hydrogen storage batteries (NiMH), lithium ion batteries (Li-ion), and lithium ion polymer batteries (Li-ion polymer). Secondary batteries offer both economic and environmental advantages over primary batteries that are used once and discarded.
- Secondary batteries are currently used where low power is used. Examples are devices, handhelds, tools, and uninterruptible power supplies that help start up the car. Recently, the development of wireless communication technology has led to the popularization of portable devices, and there is also a tendency to wirelessize many kinds of conventional devices, and the demand for secondary batteries is exploding. In addition, hybrid vehicles and electric vehicles have been put to practical use in terms of prevention of environmental pollution, and these next-generation vehicles employ technologies that use secondary batteries to reduce value, weight, and extend life.
- secondary batteries are cylindrical, rectangular or pouch type batteries. This is because the secondary battery is manufactured by mounting an electrode assembly composed of a negative electrode, a positive electrode, and a separator inside a pouch-shaped case of a cylindrical or rectangular metal can or an aluminum laminate sheet, and injecting an electrolyte into the electrode assembly. Therefore, since a certain space for mounting the secondary battery is essentially required, the cylindrical, square or pouch type of the secondary battery has a problem in that it acts as a limitation for the development of various types of portable devices. Accordingly, there is a need for a new type of secondary battery that is easily deformed.
- a linear battery which is a battery having a very large ratio of length to cross-sectional diameter.
- Korean Patent Laid-Open Publication No. 2005-99903 discloses a variable battery including an internal electrode, an external electrode, and an electrolyte layer interposed between these electrodes, but its flexibility is not good.
- the linear battery uses a polymer electrolyte to form an electrolyte layer, it is difficult to introduce electrolyte into the active material of the electrode, thereby increasing the resistance of the battery, thereby deteriorating capacity characteristics and cycle characteristics.
- the wire-type current collector When the wire-type current collector is used for the cable type secondary battery, since the wire resistance is generally higher than the surface resistance, the wire-type current collector has higher resistance characteristics than the sheet-type current collector, resulting in poor battery performance. There is a problem that can be.
- an object of the present invention is to provide a secondary battery having a novel linear structure, which is easily deformable, maintains stability and excellent performance of the secondary battery, and facilitates the introduction of an electrolyte into the active material of the electrode.
- the internal electrode support And a sheet-shaped inner electrode-separation layer-external electrode composite formed by spirally winding on the outer surface of the inner electrode support, wherein the inner electrode-separation layer-external electrode composite includes an inner electrode and a short circuit to prevent a short circuit of the electrode.
- a cable type secondary battery formed by compressing a separation layer and an external electrode to be integrated.
- the sheet-shaped inner electrode-separation layer-outer electrode composite may have a strip structure extending in one direction.
- the sheet-shaped inner electrode-separation layer-outer electrode composite may be formed by spirally winding so as not to overlap each other or spirally wound so as to overlap each other.
- the inner electrode-separation layer-external electrode composite may be compressed so that the inner electrode and the separation layer, or the separation layer and the outer electrode are integrated with each other at a peel strength of 15 to 300 N / m. It may be formed.
- the internal electrode support A sheet-shaped inner electrode formed spirally wound on an outer surface of the inner electrode support body; And a sheet-type separation layer-external electrode composite formed by spirally winding the outer surface of the internal electrode, wherein the separation layer-external electrode composite is compressed to integrate the separation layer and the external electrode to prevent the short circuit of the electrode.
- the formed cable type secondary battery is provided.
- the sheet-type separation layer-external electrode composite may have a strip structure extending in one direction.
- the sheet-type separation layer-external electrode composite may be formed by spirally winding so as not to overlap each other or spirally wound so as to overlap each other.
- the separation layer-external electrode composite may be formed such that the separation layer and the external electrode are integrated to form a peel strength of 15 to 300 N / m.
- the internal electrode support A sheet-shaped inner electrode-separation layer composite formed by winding spirally on an outer surface of the inner electrode support body; And a sheet-shaped external electrode formed by spirally winding the outer surface of the inner electrode-separation layer composite, wherein the inner electrode-separation layer composite is compressed by integrating an inner electrode and a separation layer which prevents a short circuit between the electrodes.
- the formed cable type secondary battery is provided.
- the sheet-shaped inner electrode-separation layer composite may have a strip structure extending in one direction.
- the sheet-shaped inner electrode-separation layer composite may be formed by spirally winding so as not to overlap each other or spirally wound so as to overlap each other.
- the internal electrode-separation layer composite may be formed such that the internal electrode and the separation layer are integrated to form a peel strength of 15 to 300 N / m.
- the internal electrode support may be an open structure, it may be a hollow fiber, a wound wire support, a wound sheet support or a mesh support.
- the hollow yarn is polyethylene, polypropylene, polytetrafluoroethylene, polyvinylidene fluoride, polyacrylonitrile, polyimide, polyethylene terephthalate, polyamide imide, polyester imide, polyether sulfone, and It may be formed of one or more selected from the group consisting of polysulfone.
- the inner electrode may include an inner current collector and an inner electrode active material layer formed on one surface of the inner current collector
- the outer electrode may include an outer current collector and an outer electrode active material layer formed on one surface of the outer current collector. can do.
- it may further include a polymer film layer formed on the other surface of the inner current collector or the other surface of the outer current collector.
- the polymer film layer may be formed of any one selected from the group consisting of polyolefins, polyesters, polyimides and polyamides, or a mixture of two or more thereof.
- the inner current collector or the outer current collector may be a mesh current collector.
- the width and length of the separation layer may be greater than the width and length of the inner current collector and the outer current collector.
- At least one of the inner current collector and the outer current collector may further include a primer coating layer formed of a conductive material and a binder.
- the conductive material may include any one selected from the group consisting of carbon black, acetylene black, ketjen black, carbon fiber, carbon nanotubes, and graphene, or a mixture of two or more thereof.
- the binder may include polyvinylidene fluoride (PVDF), polyvinylidene fluoride-co-hexafluoro propylene, polyvinylidene fluoride trichloro Ethylene (polyvinylidene fluoride-co-trichloroethylene), polybutyl acrylate, polymethyl methacrylate, polyacrylonitrile, polyvinylpyrrolidone, polyvinylacetate ( polyvinylacetate, ethylene vinyl co-vinyl acetate, polyethylene oxide, polyarylate, cellulose acetate, cellulose acetate butyrate, cellulose acetate Cellulose acetate propionate, cyanoethylpullu Cyanoethylpullulan, cyanoethylpolyvinylalcohol, cyanoethylcellulose, cyanoethylsucrose, pullulan, carboxyl methyl cellulose, styrenebutadiene rubber
- the internal electrode may further include a polymer support layer formed on a surface of the internal electrode active material layer.
- the polymer support layer may be a porous polymer layer having a pore size of 0.01 ⁇ m to 10 ⁇ m and a porosity of 5 to 95%.
- the polymer support layer may include a polar linear polymer, an oxide-based linear polymer, or a mixture thereof.
- the polar linear polymer polyacrylonitrile, polyvinyl chloride, polyvinylidene fluoride (PVDF), polyvinylidene fluoride-hexafluorofluoropropylene ( polyvinylidene fluoride-co-hexafluoro propylene, polyvinylidene fluoride-co-trichloroethylene, polyethylenimine, polymethyl methacrylate, polybutyl acrylate ( polybutyl acrylate), polyvinylpyrrolidone, polyvinylacetate, ethylene vinyl co-vinyl acetate, polyarylate and polyp-phenylene terephthalamide (Poly -p-phenylene terephthalamide) any one selected from the group consisting of or a mixture of two or more thereof Can be.
- PVDF polyvinylidene fluoride
- PVDF polyvinylidene fluoride-hexafluorofluoropropylene
- the oxide-based linear polymer is any one selected from the group consisting of polyethylene oxide, polypropylene oxide, polyoxymethylene, and polydimethylsiloxane, or two of them. It may be a mixture of the above.
- a plurality of recesses may be formed on at least one surface of the inner current collector or the outer current collector.
- the plurality of recesses may have a continuous pattern or an intermittent pattern.
- the internal current collector may include stainless steel, aluminum, nickel, titanium, calcined carbon, or copper; Stainless steel surface-treated with carbon, nickel, titanium, or silver; Aluminum-cadmium alloys; Non-conductive polymer surface-treated with a conductive material; Or it may be made of a conductive polymer.
- the conductive material may be one or a mixture of two or more selected from polyacetylene, polyaniline, polypyrrole, polythiophene, polysulfuritride, indium tin oxide (ITO), silver, palladium and nickel.
- the conductive polymer may be a polymer that is one compound selected from polyacetylene, polyaniline, polypyrrole, polythiophene, and polysulfuritride, or a mixture of two or more thereof.
- the external current collector stainless steel, aluminum, nickel, titanium, calcined carbon or copper; Stainless steel surface-treated with carbon, nickel, titanium, or silver; Aluminum-cadmium alloys; Non-conductive polymer surface-treated with a conductive material; Conductive polymers; A metal paste comprising a metal powder of Ni, Al, Au, Ag, Pd / Ag, Cr, Ta, Cu, Ba, or ITO; Or a carbon paste including carbon powder which is graphite, carbon black, or carbon nanotubes.
- the internal electrode support may have a hollow structure in which a space is formed.
- the inner electrode support may include at least one wire-shaped inner electrode support wound in a spiral form, or at least one sheet-shaped inner electrode support wound in a spiral form.
- the internal electrode support may include two or more wire type internal electrode supports spirally wound to cross each other.
- an internal electrode current collector core part, a lithium ion supply core part including an electrolyte, or a filling core part may be formed in a space formed inside the internal electrode supporter.
- the lithium ion supply core portion may include a gel polymer electrolyte and a support, and may further include a liquid electrolyte and a porous carrier.
- the electrolyte is ethylene carbonate (EC), propylene carbonate (PC), butylene carbonate (BC), vinylene carbonate (VC), diethyl carbonate (DEC), dimethyl carbonate (DMC), ethyl methyl carbonate (EMC).
- EC ethylene carbonate
- PC propylene carbonate
- BC butylene carbonate
- VC vinylene carbonate
- DEC diethyl carbonate
- DMC dimethyl carbonate
- EMC ethyl methyl carbonate
- Electrolyte solution Gel polymer electrolytes using PEO, PVdF, PVdF-HFP, PMMA, PAN or PVAc; Or a solid electrolyte using PEO, polypropylene oxide (PPO), polyethylene imine (PEI), polyethylene sulphide (PES) or polyvinyl acetate (PVAc); It may include an electrolyte selected from.
- the electrolyte may further include a lithium salt, wherein the lithium salt is LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiPF 6 , LiCF 3 SO 3 , LiCF 3 CO 2, LiAsF 6, LiSbF 6, LiAlCl 4, CH 3 SO 3 Li, CF 3 SO 3 Li, (CF 3 SO 2) 2 NLi, chloroborane lithium, one selected from a lower aliphatic carboxylic acid lithium, and tetraphenyl lithium borate Or two or more kinds.
- the lithium salt is LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiPF 6 , LiCF 3 SO 3 , LiCF 3 CO 2, LiAsF 6, LiSbF 6, LiAlCl 4, CH 3 SO 3 Li, CF 3 SO 3 Li, (CF 3 SO 2) 2 NLi, chloroborane lithium, one selected from a lower aliphatic
- the inner electrode may be a cathode or an anode
- the outer electrode may be an anode or a cathode corresponding to the inner electrode
- the inner electrode active material may include natural graphite, artificial graphite or carbonaceous material; Metals (Me) that are lithium-containing titanium composite oxide (LTO), Si, Sn, Li, Zn, Mg, Cd, Ce, Ni, or Fe; Alloys composed of the metals (Me); Oxides of the metals (Me) (MeOx); And any one active material particles selected from the group consisting of metals (Me) and a composite of carbon or a mixture of two or more thereof, and the external electrode active material includes LiCoO 2 , LiNiO 2 , LiMn 2 O 4 , and LiCoPO 4 , LiFePO 4 , LiNiMnCoO 2 and LiNi 1-xyz Co x M1 y M2 z O 2 (M1 and M2 are independently of each other Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, Mg
- the internal electrode active material is LiCoO 2 , LiNiO 2 , LiMn 2 O 4 , LiCoPO 4 , LiFePO 4 , LiNiMnCoO 2, and LiNi 1-xyz Co x M1 y M2 z O 2
- M1 and M2 are independently of each other selected from the group consisting of Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, Mg and Mo
- the separation layer may be an electrolyte layer or a separator.
- the electrolyte layer a gel polymer electrolyte using PEO, PVdF, PVdF-HFP, PMMA, PAN or PVAc; Or a solid electrolyte using PEO, polypropylene oxide (PPO), polyethylene imine (PEI), polyethylene sulphide (PES) or polyvinyl acetate (PVAc); It may include an electrolyte selected from.
- the electrolyte layer may further include a lithium salt.
- the lithium salt LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiPF 6 , LiCF 3 SO 3 , LiCF 3 CO 2 , LiAsF 6 , LiSbF 6 , LiAlCl 4 , CH 3 SO 3 Li, CF 3 SO 3 Li, (CF 3 SO 2 ) 2 NLi, may be one or two or more selected from lithium chloroborane, lithium lower aliphatic carbonate and lithium tetraphenyl borate.
- the separator may include a porous polymer substrate made of a polyolefin-based polymer selected from the group consisting of ethylene homopolymer, propylene homopolymer, ethylene-butene copolymer, ethylene-hexene copolymer, and ethylene-methacrylate copolymer; Any one selected from the group consisting of polyester, polyacetal, polyamide, polycarbonate, polyimide, polyetheretherketone, polyethersulfone, polyphenylene oxide, polyphenylene sulfide and polyethylene naphthalate or two or more thereof Porous polymer substrate made of a polymer mixture; A porous substrate formed of a mixture of inorganic particles and a binder polymer; Or a separator having a porous coating layer formed of a mixture of inorganic particles and a binder polymer on at least one surface of the porous polymer substrate.
- a porous polymer substrate made of a polyolefin-based polymer selected from the group consist
- the porous polymer substrate may be a porous polymer film substrate, or a porous non-woven fabric substrate.
- the cable type secondary battery may further include a protective coating formed to surround the outer surface.
- the protective coating may be formed of a polymer resin.
- the polymer resin may include any one selected from the group consisting of PET, PVC, HDPE and epoxy resin, or a mixture of two or more thereof.
- the protective coating may further include a moisture barrier layer.
- the moisture barrier layer may be formed of aluminum or a liquid crystal polymer.
- the lithium ion supply core portion containing an electrolyte;
- An inner electrode support having an open structure formed surrounding the outer surface of the lithium ion supply core;
- a sheet-shaped inner electrode-separation layer-external electrode composite formed around the outer surface of the inner electrode support and spirally wound, wherein the inner electrode-separation layer-external electrode composite includes an inner current collector and the inner current collector. Compressing the internal electrode having an internal electrode active material layer formed on the entire surface, a separation layer to prevent short-circuit of the electrode, and an external current collector and an external electrode including the external electrode active material layer formed on the surface of the external current collector.
- the formed cable type secondary battery is provided.
- the lithium ion supply core portion containing an electrolyte;
- An inner electrode support having an open structure formed surrounding the outer surface of the lithium ion supply core;
- a sheet-shaped inner electrode formed spirally wound on an outer surface of the inner electrode support body and having an inner current collector and an inner electrode active material layer formed on a surface of the inner current collector;
- a sheet-type separation layer-external electrode composite formed by spirally winding the outer surface of the internal electrode, wherein the separation layer-external electrode composite includes a separation layer and an external current collector and an external current collector to prevent a short circuit of an electrode.
- a cable type secondary battery formed by pressing an external electrode having an external electrode active material layer formed on the entire surface thereof to be integrated.
- the lithium ion supply core portion containing an electrolyte;
- An inner electrode support having an open structure formed surrounding the outer surface of the lithium ion supply core;
- a sheet-shaped inner electrode-separation layer composite formed by winding spirally on an outer surface of the inner electrode support body;
- a sheet-shaped external electrode formed spirally wound on an outer surface of the inner electrode-separation layer composite, the sheet-type outer electrode having an outer current collector and an outer electrode active material layer formed on a surface of the outer current collector.
- the separation layer composite is provided with a cable type secondary battery formed by compressing the internal current collector and the internal electrode including the internal electrode active material layer formed on the surface of the internal current collector, and a separation layer for preventing short circuit of the electrodes.
- two or more internal electrode support disposed in parallel to each other; Two or more sheet-shaped inner electrodes formed spirally wound on an outer surface of each of the inner electrode supports; And a separation layer formed around the outer surfaces of the inner electrodes and wound in a spiral shape, wherein the separation layer prevents short-circuits of the electrodes, and the sheet-type separation layer-outer electrode composite formed by bonding the external electrodes to be integrated.
- a battery is provided.
- two or more lithium ion supply core portion containing an electrolyte;
- An inner electrode support having an open structure formed surrounding an outer surface of each of the lithium ion supply cores;
- Two or more internal electrodes spirally wound on an outer surface of each of the internal electrode supports and disposed in parallel with each other and having an internal current collector and an internal electrode active material layer formed on a surface of the internal current collector;
- an outer electrode formed around the outer surface of the inner electrodes and wound in a spiral shape, the outer electrode including a separation layer for preventing a short circuit of the electrode and an outer current collector and an outer electrode active material layer formed on a surface of the outer current collector.
- a cable type secondary battery comprising a sheet-type separation layer-external electrode composite formed by pressing.
- the electrode and the separation layer are bonded and integrated, so that the separation layer in close contact with the electrode absorbs the electrolyte and induces a uniform supply of the electrolyte to the external electrode active material layer, thereby improving the stability and performance of the cable type secondary battery.
- the separation layer in close contact with the electrode absorbs the electrolyte and induces a uniform supply of the electrolyte to the external electrode active material layer, thereby improving the stability and performance of the cable type secondary battery.
- the resistance of the cable type secondary battery can be reduced, thereby contributing to the improvement of battery performance.
- the lithium ion supply core part including the electrolyte is located inside the internal electrode support, and the internal electrode support has an open structure, so that the electrolyte of the lithium ion supply core part is an electrode active material. It is easy to penetrate into the furnace, and it is easy to supply lithium ions and exchange lithium ions. For this reason, the capacity characteristics and cycle characteristics of a battery are excellent.
- the cable-type secondary battery according to an embodiment of the present invention includes an internal electrode support having an open structure, and a sheet-shaped electrode-separation layer composite is wound in a spiral like a spring structure, thereby maintaining a linear shape. It can relieve stress from external force.
- FIG 1 and 2 are views illustrating an internal electrode-separation layer-external electrode composite according to an embodiment of the present invention.
- FIG 3 and 4 illustrate a separation layer-external electrode composite according to an embodiment of the present invention.
- FIG 5 and 6 are views illustrating the internal electrode-separation layer composite according to an embodiment of the present invention.
- FIG. 7 is a diagram illustrating an internal electrode-separation layer-external electrode composite according to an embodiment of the present invention.
- FIG. 8 is a view schematically illustrating a shape in which a sheet-shaped inner electrode-separation layer-outer electrode composite is wound on an outer surface of an inner electrode support according to an exemplary embodiment of the present invention.
- FIG. 9 is a view illustrating a cable type secondary battery including an inner electrode support and an inner electrode-separation layer-outer electrode composite according to an embodiment of the present invention.
- FIG. 10 is a view illustrating a cable type secondary battery including an inner electrode support and a separation layer-outer electrode composite according to an embodiment of the present invention.
- FIG. 11 is a view illustrating a cable type secondary battery including an internal electrode support and an internal electrode-separation layer composite according to an embodiment of the present invention.
- FIG. 12 is a cross-sectional view of a cable type secondary battery having a plurality of internal electrodes according to an embodiment of the present invention.
- FIG. 13 is a graph showing a voltage profile with respect to a normalized capacity during charging of a cable type secondary battery manufactured according to Examples and Comparative Examples of the present invention.
- FIG. 14 is a graph showing a voltage profile with respect to a normalized capacity during discharge of a cable type secondary battery manufactured according to Examples and Comparative Examples of the present invention.
- 15 is a graph showing cycle life characteristics of a cable type secondary battery manufactured according to Examples and Comparative Examples of the present invention.
- the conventional cable type secondary battery has an electrolyte layer between the inner electrode and the outer electrode, and these electrolyte layers must isolate the inner electrode and the outer electrode in order to prevent a short circuit, and thus have a gel polymer electrolyte or a solid polymer having a certain level of mechanical properties. It is necessary to use an electrolyte.
- the gel-type polymer electrolyte or the solid polymer electrolyte does not have excellent performance as a lithium ion source, in order to supply lithium ions to the electrode active material layer sufficiently, the thickness of the electrolyte layer must be increased, and the thickness of the electrolyte layer is increased. As a result, the gap between the electrodes is widened, resulting in a decrease in battery performance due to an increase in resistance.
- a lithium ion supply core part including an electrolyte is provided inside an internal electrode support having an open structure, and the electrolyte of the lithium ion supply core part passes through the internal electrode support to reach the internal electrode active material layer and the external electrode active material layer. It was made.
- the gap between the inner electrode and the separation layer or between the separation layer and the outer electrode may exist depending on the uneven portion of the inner electrode support.
- the electrolyte is injected by the above intervals, the electrolyte is prevented from being transferred to the internal electrode active material layer and the external electrode active material layer. Due to this problem, the charging and discharging of the secondary battery exhibits irregular charging and discharging behavior, and thus, it is difficult to implement a desired battery performance.
- the gap between the electrode and the separation layer can be kept constant, and the separation layer in close contact with the electrode active material layer is electrolyte through the internal electrode. By absorbing it can be induced to supply a uniform electrolyte solution to the external electrode active material layer.
- the current collector when the current collector is applied in the form of a wire, since the wire resistance is generally higher than the sheet resistance, the resistance acting on the current collector in the form of a wire affects the battery and causes the performance of the battery to deteriorate.
- the sheet-type current collector is used as the internal current collector and the external current collector, the resistance of the battery can be reduced, thereby improving the performance of the battery.
- the cable-type secondary battery according to an embodiment of the present invention, the internal electrode support; And a sheet-shaped inner electrode-separation layer-external electrode composite formed by spirally winding on the outer surface of the inner electrode support, wherein the inner electrode-separation layer-external electrode composite includes an inner electrode and a short circuit to prevent a short circuit of the electrode. It is formed by compressing the separation layer and the external electrode to be integrated.
- the cable-type secondary battery according to another embodiment of the present invention, the internal electrode support; A sheet-shaped inner electrode formed spirally wound on an outer surface of the inner electrode support body; And a sheet-type separation layer-external electrode composite formed by spirally winding the outer surface of the internal electrode, wherein the separation layer-external electrode composite is compressed to integrate the separation layer and the external electrode to prevent the short circuit of the electrode. Is formed.
- the cable-type secondary battery according to another embodiment of the present invention, the internal electrode support; A sheet-shaped inner electrode-separation layer composite formed by winding spirally on an outer surface of the inner electrode support body; And a sheet-shaped external electrode formed by spirally winding the outer surface of the inner electrode-separation layer composite, wherein the inner electrode-separation layer composite is compressed by integrating an inner electrode and a separation layer which prevents a short circuit between the electrodes. Is formed.
- the spiral is represented in English as a spiral or helix, and is a shape that is twisted in a predetermined range, and generally refers to a shape similar to that of a general spring.
- the sheet type inner electrode-separation layer-external electrode composite, the sheet type separation layer-external electrode composite, and the sheet type inner electrode-separation layer composite may have a strip structure extending in one direction. have.
- the sheet-shaped inner electrode-separation layer-external electrode composite, the sheet-shaped separation layer-external electrode composite, and the sheet-shaped inner electrode-separation layer composite may be spirally wound so as not to overlap each other.
- each of the sheet-type separation layer-electrode composite may be formed by spirally winding so as not to overlap each other at intervals within two times the width of the sheet-type separation layer-electrode composite so as not to deteriorate the performance of the battery. have.
- each sheet-type separation layer-electrode composite may have a width of the overlapping portion within 0.9 times the width of each sheet-type separation layer-electrode composite in order to suppress excessive increase in internal resistance of the battery. It may be formed by winding in a spiral.
- the internal electrode-separation layer composite 30 may be formed by pressing the electrode 7 to be integrated.
- the composite of the electrode-separation layer according to the present invention the external current collector 11, the external electrode active material layer 12, the separation layer 13,
- the internal electrode active material layer 14 and the internal current collector 15 may be an internal electrode-separation layer-external electrode composite 10 formed by compression to be integrated.
- the external current collector 21 and the external electrode active material layer 22 may be formed.
- a separation layer-external electrode composite 20 formed by compressing the separation layer 23 to be integrated.
- the separation layer 33, the internal electrode active material layer 34, and the internal current collector 35 are compressed to be integrated.
- the internal electrode-separation layer composite 30 may be formed.
- the inner electrode-separation layer-outer electrode composite 10 may be formed by laminating an inner electrode, a separation layer, and an outer electrode in a longitudinal direction in order, and then laminating a process using a roll press method.
- the binder eluted in the separator consisting of inorganic particles and the binder as a binder or separation layer included in the electrode active material layer has a stronger adhesive force at the interface between the separation layer and the electrode.
- the inner electrode-separation layer-external electrode composite 10 may include the inner electrode 7 and the separation layer 13, or the separation layer 13 and the outer electrode 5 of 15 to 300 N.
- FIG. / m may be formed by pressing to achieve a peel strength (peel strength) to be integrated
- the separation layer-external electrode composite 20 the separation layer 23 and the external electrode 5 is 15 to 300 N / m may be formed by pressing to form a peel strength to be integrated
- the internal electrode-separation layer composite 30, the internal electrode 7 and the separation layer 33 is 15 to 300 N / m peeling It may be formed by pressing to form a strength and integrated.
- an appropriate level of adhesive force is formed so that the separation layer and the electrode are not spaced apart from each other, thereby bonding and integrating the separation layer and the electrode.
- the separation layer When the separation layer is applied to the cable type secondary battery, since the sheet-type separation layer is formed on the outer surface of the internal electrode, a portion overlapping with each other and a portion not overlapping with each other are generated.
- the separation layer and the electrode composite are applied by integrating the separation layer and the electrode in advance, as in the present invention, even when the cable type secondary battery is bent, the separation layer and the electrode move integrally. It is possible to prevent the occurrence of the internal short circuit due to the contact of the external electrode. As a result, since it advantageously works to improve the flexibility of the battery and minimizes the overlap between the separation layers, the ion conductivity of the battery also works advantageously to contribute to the improvement of the battery performance.
- the electrode active material layer may detach from the electrode current collector.
- the separation layer and the electrode are integrated, so that the separation layer is an electrode. It acts as a buffer against external stress acting on the active material layer.
- the sheet-shaped inner electrode-separation layer-outer electrode composite 10 includes a lamination process between the inner electrode (not shown), the separation layer 13, and the outer electrodes 11 and 12. It can be formed by pressing to be integrated through the, wherein the separation layer 13 is designed to have a larger width and length than the internal electrode (not shown) and the external electrodes (11, 12) by the internal electrode (not shown) And short circuits with the external electrodes 11 and 12 may not occur. More specifically, the width difference w1 and the length difference w2 between the separation layer 13 and the internal and external electrodes may be designed to be 0.1 mm or more.
- the sheet-shaped inner electrode-separation layer-external electrode composite 10 is wound on the outer surface of the inner electrode support 2 surrounding the outer surface of the lithium ion supply core part 1 to manufacture a cable type secondary battery. Can be.
- the internal electrode support may have an open structure.
- the open structure refers to a structure in which the open structure is used as an interface, and freely moves materials from inside to outside through this interface.
- the internal electrode support of the open structure of the present invention may be a hollow fiber, a wound wire support, a wound sheet support or a mesh support, and the electrolyte freely moves to the internal electrode active material and the external electrode active material to prevent wetting. It may also have pores on the surface to facilitate smoothing.
- the internal electrode support having the open structure maintains the linear shape of the cable type secondary battery, can prevent deformation of the battery structure due to external force, and prevents collapse or deformation of the electrode structure to prevent the cable type secondary battery. Flexibility can be secured.
- the hollow yarn is polyethylene, polypropylene, polytetrafluoroethylene, polyvinylidene fluoride, polyacrylonitrile, polyimide, polyethylene terephthalate, polyamide imide, polyester imide, polyether sulfone, and Using at least one polymer selected from the group consisting of polysulfones, it can be obtained by conventional hollow fiber formation methods.
- the wound wire support may be formed in a shape such as a spring structure composed of a polymer or a metal.
- the polymer may be made of a material having excellent chemical resistance that is not reactive with an electrolyte, and the metal may be the same as the metal constituting the internal current collector or the external current collector described below.
- the diameter of the internal electrode support may be 0.1 to 10 mm, the surface may have pores having a diameter of 100 nm to 10 ⁇ m.
- the inner electrode may include an inner current collector and an inner electrode active material layer formed on one surface of the inner current collector
- the outer electrode may include an outer current collector and an outer electrode active material layer formed on one surface of the outer current collector. can do.
- it may further include a polymer film layer formed on the other surface of the inner current collector or the other surface of the outer current collector.
- the polymer film layer may be formed of any one selected from the group consisting of polyolefins, polyesters, polyimides and polyamides, or a mixture of two or more thereof.
- the inner current collector or the outer current collector may be a mesh current collector.
- the electrode current collector of the cable type secondary battery is a wire type
- a disadvantage is that the resistance element according to the small surface area is larger than the case where the electrode current collector is a wound sheet type or a wound mesh type. It is not suitable because its rate characteristic may be lowered.
- the electrode active material layer may detach from the electrode current collector. Therefore, a large amount of binder component enters the electrode active material layer for electrode flexibility. However, such a large amount of binder swelling (swelling) occurs by the electrolyte solution, can be easily separated from the electrode current collector, thereby causing a decrease in battery performance.
- At least one of the internal current collector and the external current collector may further include a primer coating layer composed of a conductive material and a binder.
- the conductive material may include any one selected from the group consisting of carbon black, acetylene black, ketjen black, carbon fiber, carbon nanotubes, and graphene, or a mixture of two or more thereof.
- the binder may include polyvinylidene fluoride (PVDF), polyvinylidene fluoride-co-hexafluoro propylene, polyvinylidene fluoride trichloro Ethylene (polyvinylidene fluoride-co-trichloroethylene), polybutyl acrylate, polymethyl methacrylate, polyacrylonitrile, polyvinylpyrrolidone, polyvinylacetate ( polyvinylacetate, ethylene vinyl co-vinyl acetate, polyethylene oxide, polyarylate, cellulose acetate, cellulose acetate butyrate, cellulose acetate Cellulose acetate propionate, cyanoethylpullu Cyanoethylpullulan, cyanoethylpolyvinylalcohol, cyanoethylcellulose, cyanoethylsucrose, pullulan, carboxyl methyl cellulose, styrenebutadiene rubber
- the internal electrode may further include a polymer support layer formed on a surface of the internal electrode active material layer.
- the polymer support layer When the polymer support layer is further included on the surface of the internal electrode active material layer according to an embodiment of the present invention, a phenomenon occurs that a crack occurs on the surface of the internal electrode active material layer even if a cable type secondary battery is bent by an external force. Excellently prevented. As a result, the detachment phenomenon of the internal electrode active material layer is further prevented, and thus the performance of the battery may be further improved.
- the polymer support layer may have a porous structure. In this case, the electrolyte may be smoothly introduced into the internal electrode active material layer, thereby preventing an increase in electrode resistance.
- the polymer support layer may include a polar linear polymer, an oxide-based linear polymer or a mixture thereof.
- the polar linear polymer polyacrylonitrile, polyvinyl chloride, polyvinylidene fluoride (PVDF), polyvinylidene fluoride-hexafluorofluoropropylene ( polyvinylidene fluoride-co-hexafluoro propylene, polyvinylidene fluoride-co-trichloroethylene, polyethylenimine, polymethyl methacrylate, polybutyl acrylate ( polybutyl acrylate), polyvinylpyrrolidone, polyvinylacetate, ethylene vinyl co-vinyl acetate, polyarylate and polyp-phenylene terephthalamide (Poly -p-phenylene terephthalamide) any one selected from the group consisting of or a mixture of two or more thereof Can be.
- PVDF polyvinylidene fluoride
- PVDF polyvinylidene fluoride-hexafluorofluoropropylene
- the oxide-based linear polymer is any one selected from the group consisting of polyethylene oxide, polypropylene oxide, polyoxymethylene, and polydimethylsiloxane, or two of them. It may be a mixture of the above.
- the polymer support layer may be a porous polymer layer having a pore size of 0.01 ⁇ m to 10 ⁇ m and a porosity of 5 to 95%.
- porous structure of the porous polymer layer may be formed through phase separation or phase inversion by non-solvent in the manufacturing process.
- polyvinylidene fluoride-hexafuluropropylene as a polymer is added to acetone acting as a solvent to prepare a solution having a solid content of 10% by weight. Thereafter, water or ethanol as a non-solvent may be added to the prepared solution by 2 to 10% by weight to prepare a polymer solution.
- the phase inversion In the process of evaporation after coating of the polymer solution, the phase inversion, the area occupied by the non-solvent in the phase-separated portion of the non-solvent and the polymer becomes pores. Therefore, the pore size may be adjusted according to the degree of solubility of the nonsolvent and the polymer and the content of the nonsolvent.
- a plurality of recesses may be formed on at least one surface.
- the plurality of recesses may have a continuous pattern or an intermittent pattern. That is, it may have a recess of a continuous pattern formed in the longitudinal direction spaced apart from each other, or may have an intermittent pattern in which a plurality of holes are formed.
- the plurality of holes may be circular or polygonal.
- the internal current collector is stainless steel, aluminum, nickel, titanium, calcined carbon or copper; Or surface treated with carbon, nickel, titanium or silver on the surface of stainless steel; Aluminum-cadmium alloys; Non-conductive polymer surface-treated with a conductive material; Or manufactured using a conductive polymer.
- the current collector collects electrons generated by the electrochemical reaction of the active material or serves to supply electrons required for the electrochemical reaction.
- a metal such as copper or aluminum is used.
- it is relatively more flexible than using a metal such as copper or aluminum.
- it is possible to achieve the light weight of the battery by using a polymer current collector in place of the metal current collector.
- Such conductive materials may be polyacetylene, polyaniline, polypyrrole, polythiophene, polysulfuride, ITO (indum tin oxide), silver, palladium and nickel, and the conductive polymer may be polyacetylene, polyaniline, polypyrrole, polythiol Offen, polysulfuritride and the like can be used.
- the non-conductive polymer used for the current collector is not particularly limited in kind.
- Examples of the external current collector of the present invention include stainless steel, aluminum, nickel, titanium, calcined carbon, or copper; Stainless steel surface-treated with carbon, nickel, titanium, or silver; Aluminum-cadmium alloys; Non-conductive polymer surface-treated with a conductive material; Conductive polymers; A metal paste comprising a metal powder of Ni, Al, Au, Ag, Al, Pd / Ag, Cr, Ta, Cu, Ba, or ITO; Or a carbon paste containing carbon powder which is graphite, carbon black or carbon nanotubes.
- the conductive material and the conductive polymer may be the same as those used in the above-described internal current collector.
- the internal electrode support may have a hollow structure in which a space is formed.
- the inner electrode support may include at least one wire-shaped inner electrode support wound in a spiral form, or at least one sheet-shaped inner electrode support wound in a spiral form.
- the internal electrode support may include two or more wire type internal electrode supports spirally wound to cross each other.
- the internal electrode current collector core may be formed in a space formed inside the internal electrode support.
- the internal electrode current collector core portion carbon nanotubes, stainless steel, aluminum, nickel, titanium, calcined carbon or copper; Stainless steel surface-treated with carbon, nickel, titanium, or silver; Aluminum-cadmium alloys; Non-conductive polymer surface-treated with a conductive material; Or it may be made of a conductive polymer.
- a lithium ion supply core part including an electrolyte may be formed in a space formed inside the internal electrode support.
- the lithium ion supply core may include a gel polymer electrolyte and a support.
- the lithium ion supply core unit may include a liquid electrolyte and a porous carrier.
- the filling core may be formed in a space formed inside the internal electrode support.
- the filling core part may include materials for improving various performances in a cable type secondary battery, for example, polymer resin, rubber, inorganic material, and the like. It may be formed into various shapes such as wire, fiber, powder, mesh, foam, and the like.
- the cable type secondary battery 100 includes a lithium ion supply core unit 110 including an electrolyte; An inner electrode support 120 having an open structure formed surrounding the outer surface of the lithium ion supply core unit 110; And a sheet-shaped inner electrode-separation layer-external electrode complex 130 formed around the outer surface of the inner electrode support 120 and spirally wound, including the inner electrode-separation layer-external electrode composite 130.
- An internal electrode including an internal current collector and an internal electrode active material layer formed on a surface of the internal current collector, a separation layer to prevent short circuit of the electrode, and an external current collector and an external electrode active material layer formed on the surface of the external current collector. It is formed by compressing the external electrodes to be integrated.
- the lithium ion supply core unit 210 including an electrolyte; An internal electrode support 220 having an open structure formed surrounding the outer surface of the lithium ion supply core unit 210; A sheet-shaped inner electrode formed spirally wound on an outer surface of the inner electrode support 220 and having an inner current collector 231 and an inner electrode active material layer 232 formed on a surface of the inner current collector 231; And a sheet-shaped separation layer-external electrode composite 230 formed spirally wound on an outer surface of the internal electrode, wherein the separation layer-external electrode composite 230 includes a separation layer and an external to prevent shorting of the electrode.
- the current collector and the external electrode including the external electrode active material layer formed on the surface of the external current collector are formed by pressing so as to be integrated.
- the lithium ion supply core unit 310 including an electrolyte; An internal electrode support 320 having an open structure formed surrounding the outer surface of the lithium ion supply core unit 310; A sheet-shaped inner electrode-separation layer composite 330 formed by winding spirally on the outer surface of the inner electrode support 320; And a spiral wound around the outer surface of the inner electrode-separation layer composite 330 and having an outer current collector 332 and an outer electrode active material layer 331 formed on a surface of the outer current collector 332.
- the inner electrode-separation layer composite 330 Including, but not including, the inner electrode-separation layer composite 330, the inner electrode having a current collector and an inner electrode active material layer formed on the surface of the inner current collector and a separation layer for preventing a short circuit of the electrode It is formed by pressing so that it may be integrated.
- Cable type secondary battery according to an embodiment of the present invention has a horizontal cross section of a predetermined shape, it may have a linear structure elongated in the longitudinal direction with respect to the horizontal cross section.
- the cable type secondary battery according to the exemplary embodiment of the present invention may have flexibility, and may be freely deformed.
- the predetermined shape means that the shape is not particularly limited, and any shape that does not impair the essence of the present invention is possible.
- the lithium ion supply core portion 110, 210, 310 includes an electrolyte, although the type of the electrolyte is not particularly limited to ethylene carbonate (EC), propylene carbonate (PC), butylene carbonate ( BC), vinylene carbonate (VC), diethyl carbonate (DEC), dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), methyl formate (MF), gamma-butyrolactone ( ⁇ -BL; butyrolactone), Non-aqueous electrolyte using sulfolane, methylacetate (MA), or methylpropionate (MP); Gel polymer electrolytes using PEO, PVdF, PVdF-HFP, PMMA, PAN or PVAc; Or a solid electrolyte using PEO, polypropylene oxide (PPO), polyethylene imine (PEI), polyethylene sulphide (PES) or polyvinyl acetate (PVAc); Etc.
- EC ethylene carbonate
- the electrolyte may further include a lithium salt, which may include LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiPF 6 , LiCF 3 SO 3 , LiCF 3 CO 2 , LiAsF 6, LiSbF 6, LiAlCl 4 , CH 3 SO 3 Li, CF 3 SO 3 Li, (CF 3 SO 2) 2 NLi, chloro is preferred to use a borane lithium, lower aliphatic carboxylic acid lithium, and tetraphenyl lithium borate, etc.
- the lithium ion supply cores 110, 210, and 310 may be configured only with an electrolyte, and in the case of a liquid electrolyte, a porous carrier may be used.
- the inner electrode may be a cathode or an anode
- the outer electrode may be an anode or a cathode corresponding to the inner electrode
- the electrode active material layer of the present invention functions to move ions through a current collector, and the movement of these ions is caused by interaction through occlusion of ions from the electrolyte layer and release of ions into the electrolyte layer.
- the electrode active material layer may be classified into a negative electrode active material layer and a positive electrode active material layer.
- the inner electrode active material layer is a negative electrode active material, natural graphite, artificial graphite or carbonaceous material; Metals (Me) that are lithium-containing titanium composite oxide (LTO), Si, Sn, Li, Zn, Mg, Cd, Ce, Ni, or Fe; Alloys composed of the metals (Me); Oxides of the metals (Me) (MeOx); And it may include any one active material particles or a mixture of two or more thereof selected from the group consisting of a complex of the metals (Me) and carbon, the external electrode active material layer is a positive electrode active material, LiCoO 2 , LiNiO 2 , LiMn 2 O 4 , LiCoPO 4 , LiFePO 4 , LiNiMnCoO 2 and LiNi 1-xyz Co x M1 y M2 z O 2 (M1 and M2 are independently of each other Al, Ni, Co, Fe
- the internal electrode active material layer may be a positive electrode active material layer
- the external electrode active material layer may be a negative electrode active material layer
- the electrode active material layer includes an electrode active material, a binder, and a conductive material, and combines with the current collector to form an electrode.
- deformation occurs, such as the electrode being folded or severely bent by an external force, detachment of the electrode active material occurs. Due to the detachment of the electrode active material, a decrease in battery performance and battery capacity occurs.
- the current collector since the current collector has elasticity, it plays a role of dispersing the force at the time of deformation due to external force, so that the deformation of the electrode active material layer occurs less, and thus the detachment of the active material can be prevented.
- an electrolyte layer or a separator may be used as the separation layer of the present invention.
- Examples of the electrolyte layer serving as a passage for the ions include a gel polymer electrolyte using PEO, PVdF, PVdF-HFP, PMMA, PAN, or PVAc; Or a solid electrolyte using PEO, polypropylene oxide (PPO), polyethylene imine (PEI), polyethylene sulphide (PES) or polyvinyl acetate (PVAc); Etc.
- the matrix of the solid electrolyte is preferably made of polymer or ceramic glass as a basic skeleton.
- ions may move very slowly in terms of reaction rate, and therefore, it is preferable to use an electrolyte of a gel polymer having easier movement of ions than a solid.
- the gel polymer electrolyte is not excellent in mechanical properties, it may include a support to compensate for this, and such a support may be a pore structure support or a crosslinked polymer. Since the electrolyte layer of the present invention may serve as a separator, a separate separator may not be used.
- the electrolyte layer of the present invention may further include a lithium salt.
- Lithium salts can improve ionic conductivity and reaction rate, non-limiting examples of which are LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiPF 6 , LiCF 3 SO 3 , LiCF 3 CO 2, LiAsF 6, LiSbF 6, LiAlCl 4, CH 3 SO 3 Li, CF 3 SO 3 Li, (CF 3 SO 2) 2 NLi, chloro available borane lithium, lower aliphatic carboxylic acid lithium, and tetraphenyl lithium borate, etc. have.
- the separator is not limited to a kind thereof, but a porous material made of a polyolefin-based polymer selected from the group consisting of ethylene homopolymer, propylene homopolymer, ethylene-butene copolymer, ethylene-hexene copolymer and ethylene-methacrylate copolymer.
- a polymer substrate A porous polymer substrate made of a polymer selected from the group consisting of polyester, polyacetal, polyamide, polycarbonate, polyimide, polyether ether ketone, polyether sulfone, polyphenylene oxide, polyphenylene sulfide and polyethylene naphthalate; A porous substrate formed of a mixture of inorganic particles and a binder polymer; Alternatively, a separator having a porous coating layer formed of a mixture of inorganic particles and a binder polymer on at least one surface of the porous polymer substrate may be used.
- the binder polymer is attached to each other (that is, the binder polymer is connected and fixed between the inorganic particles) so that the inorganic particles can remain bound to each other,
- the porous coating layer is maintained in a state bound to the porous polymer substrate by a polymer binder.
- the inorganic particles of the porous coating layer are present in the closest packed structure substantially in contact with each other, and the interstitial volume generated when the inorganic particles are in contact with each other becomes pores of the porous coating layer.
- the polyester, polyacetal, polyamide, polycarbonate, polyimide, polyether ether ketone, polyether sulfone, polyphenylene oxide, and polyphenylene It is preferable to use a separator of a nonwoven material corresponding to a porous polymer substrate made of a polymer selected from the group consisting of sulfide and polyethylene naphthalate.
- the present invention includes a protective coating, which is formed on the outer surface of the outer current collector to protect the electrode against moisture and external shock in the air as an insulator.
- a protective coating which is formed on the outer surface of the outer current collector to protect the electrode against moisture and external shock in the air as an insulator.
- conventional polymer resins including a moisture barrier layer may be used.
- aluminum or liquid crystal polymer having excellent moisture barrier performance may be used as the moisture barrier layer, and the polymer resin may be PET, PVC, HDPE or epoxy resin.
- the lithium ion supply core unit 110 including an electrolyte; An inner electrode support 120 having an open structure formed surrounding the outer surface of the lithium ion supply core; And a sheet-shaped inner electrode-separation layer-external electrode complex 130 formed around the outer surface of the inner electrode support 120 and spirally wound, including the inner electrode-separation layer-external electrode composite 130.
- An internal electrode including an internal current collector and an internal electrode active material layer formed on a surface of the internal current collector, a separation layer to prevent short circuit of the electrode, and an external current collector and an external electrode active material layer formed on the surface of the external current collector. It is formed by compressing the external electrodes to be integrated.
- the polymer electrolyte is formed in a wire shape using an extruder or the like to prepare a lithium ion supply core unit 110.
- a non-aqueous electrolyte may be injected into the center of the inner electrode support to form a lithium ion supply core unit 110.
- the inside of the battery may be prepared. It can also be formed by injecting a nonaqueous electrolyte into the electrode support.
- a non-aqueous electrolyte may be injected thereto to prepare the lithium ion supply core unit 110.
- a wire-type inner electrode support 120 is prepared and wound around the lithium ion supply core 110.
- an inner electrode active material layer and an outer electrode active material layer are coated on each of the sheet-shaped inner current collector and the sheet-shaped outer current collector to prepare sheet inner electrodes and sheet outer electrodes, respectively.
- a general coating method may be applied as such a coating method. Specifically, an electroplating or anodizing process may be used, but a comma coater is used to coat an electrode slurry containing an active material. Or it is preferably prepared using a coating method using a slot die coater (slot die coater). In addition, in the case of the electrode slurry containing the active material, it is also possible to manufacture by using a method of extrusion coating using a dip coating or an extruder.
- the inner current collector and the outer current collector may be a mesh-type current collector.
- the manufactured inner electrode-separation layer-external electrode composite 130 is wound on the outer surface of the inner electrode support 120 to manufacture an electrode assembly, and then the protective coating 140 covers the outer surface of the electrode assembly. To form.
- the protective coating 140 is formed on the outermost surface to protect the electrode against moisture and external shock in the air as an insulator.
- a conventional polymer resin including a moisture barrier layer may be used as described above.
- Cable type secondary battery two or more internal electrode support disposed in parallel with each other; Two or more sheet-shaped inner electrodes formed spirally wound on an outer surface of each of the inner electrode supports; And a separation layer formed around the outer surfaces of the inner electrodes and wound in a spiral shape to prevent the short circuit of the electrodes, and a sheet-type separation layer-outer electrode composite formed by bonding the outer electrodes to be integrated.
- the cable type secondary battery 400 of the present invention according to another embodiment of the present invention, two or more lithium ion supply core portion 410 including an electrolyte;
- An inner electrode support 420 having an open structure formed surrounding the outer surface of each of the lithium ion supply cores 410;
- the inner surface of each of the inner electrode support 420 is spirally wound and formed in parallel with each other having an inner current collector 431 and an inner electrode active material layer 432 formed on the surface of the inner current collector 431.
- Two or more internal electrodes disposed; And an outer electrode formed around the outer surface of the inner electrodes and wound in a spiral shape, the outer electrode including a separation layer for preventing a short circuit of the electrode and an outer current collector and an outer electrode active material layer formed on a surface of the outer current collector.
- a sheet-type separation layer-external electrode composite 430 formed by pressing.
- the cable type secondary battery 400 includes an internal electrode composed of a plurality of electrodes, it is easy to adjust the balance between the negative electrode and the positive electrode and includes a plurality of electrodes, thereby preventing the possibility of disconnection.
- an internal electrode support having an open structure in which a spring-type lithium ion supply core portion with an empty core was possible was prepared.
- a negative electrode active material slurry composed of graphite as a negative electrode active material, denka black as a conductive material and PVdF as a binder, 70% by weight, 5% by weight and 25% by weight, respectively, the slurry was then coated on a copper foil. And slitting at a width of 2 mm to prepare a sheet type internal electrode (cathode).
- the cathode active material slurry composed of LiCoO 2 as a cathode active material, denca black as a conductive material, and PVdF as a binder, 80% by weight, 5% by weight and 15% by weight, respectively, the cathode active material slurry was coated on an aluminum foil. Then, by slitting to a width of 2 mm, a sheet external electrode (anode) was produced.
- the sheet-shaped separator made of a porous substrate formed of a mixture of inorganic particles and a binder polymer and the sheet-shaped inner electrode are attached to each other, and then the inner electrode and the separator are bonded to each other through a lamination process using a roll press.
- An internal electrode-separation layer composite was prepared.
- the internal electrode-separation layer composite thus prepared was wound on the outer surface of the internal electrode support having the aforementioned open structure.
- the sheet external electrode was wound on the outer surface of the wound internal electrode-separation layer composite. Thereafter, a heat-shrink tube having a moisture barrier layer was formed on the outer surface of the wound external electrode, and then a protective coating layer was formed by applying heat to shrink.
- a sheet-shaped inner electrode is formed on the outer surface of the inner electrode support, and a separator is formed on the outer surface of the wound sheet-shaped inner electrode.
- a cable type secondary battery was manufactured in the same manner as in Example, except that the method was used.
- the charge and discharge experiments were carried out 100 times under a voltage condition of 4.2 to 3.0 V at a current density of 0.3 C, respectively, and the life characteristics of the batteries were confirmed and normalized. The voltage profile for the given capacity was checked.
- 13 and 14 are graphs showing voltage profiles of normalized capacities during charging and discharging of cable type secondary batteries manufactured according to Examples and Comparative Examples of the present invention, respectively.
- the cable-type secondary battery manufactured according to the embodiment can be seen that the resistance is somewhat reduced than in the case of the comparative example.
- Figure 15 is a graph showing the cycle life characteristics of the cable-type secondary battery manufactured according to the Examples and Comparative Examples of the present invention. According to Figure 15, it can be seen that the capacity retention rate of the embodiment is significantly improved than in the case of the comparative example, thereby it can be seen that the cycle life characteristics of the embodiment is more excellent.
- the separation layer-electrode composite is applied to minimize the gap between the electrode and the separation layer and to make the electrode integral, thereby improving the electrolyte impregnation by the micropores of the separation layer in close contact with the electrode. For this reason, it is judged that the resistance of the cable type secondary battery was reduced and the lifespan characteristics were improved.
Abstract
Description
Claims (78)
- 내부전극 지지체; 및상기 내부전극 지지체의 외면에 나선형으로 권선되어 형성된 시트형의 내부전극-분리층-외부전극 복합체;를 포함하되,상기 내부전극-분리층-외부전극 복합체는, 내부전극, 전극의 단락을 방지하는 분리층 및 외부전극이 일체화되도록 압착하여 형성된 케이블형 이차전지.
- 제1항에 있어서,상기 시트형의 내부전극-분리층-외부전극 복합체는, 일측 방향으로 연장된 스트립 구조인 것을 특징으로 하는 케이블형 이차전지.
- 제1항에 있어서,상기 시트형의 내부전극-분리층-외부전극 복합체는, 서로 겹치지 않도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제3항에 있어서,상기 시트형의 내부전극-분리층-외부전극 복합체는, 상기 시트형의 내부전극-분리층-외부전극 복합체 폭의 2 배 이내의 간격을 두고 서로 이격되어 겹치지 않도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제1항에 있어서,상기 시트형의 내부전극-분리층-외부전극 복합체는, 서로 겹치도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제5항에 있어서,상기 시트형의 내부전극-분리층-외부전극 복합체는, 상기 서로 겹치는 부분의 폭이 상기 시트형의 내부전극-분리층-외부전극 복합체 폭의 0.9 배 이내가 되도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제1항에 있어서,상기 내부전극-분리층-외부전극 복합체는, 상기 내부전극과 상기 분리층, 또는 상기 분리층과 상기 외부전극이 15 내지 300 N/m의 박리강도(peel strength)를 이루며 일체화되도록 압착하여 형성된 것을 특징으로 하는 케이블형 이차전지.
- 내부전극 지지체;상기 내부전극 지지체의 외면에 나선형으로 권선되어 형성된 시트형의 내부전극; 및상기 내부전극의 외면에 나선형으로 권선되어 형성된 시트형의 분리층-외부전극 복합체;를 포함하되,상기 분리층-외부전극 복합체는, 전극의 단락을 방지하는 분리층 및 외부전극이 일체화되도록 압착하여 형성된 케이블형 이차전지.
- 제8항에 있어서,상기 시트형의 분리층-외부전극 복합체는, 일측 방향으로 연장된 스트립 구조인 것을 특징으로 하는 케이블형 이차전지.
- 제8항에 있어서,상기 시트형의 분리층-외부전극 복합체는, 서로 겹치지 않도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제10항에 있어서,상기 시트형의 분리층-외부전극 복합체는, 상기 시트형의 분리층-외부전극 복합체 폭의 2 배 이내의 간격을 두고 서로 이격되어 겹치지 않도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제8항에 있어서,상기 시트형의 분리층-외부전극 복합체는, 서로 겹치도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제12항에 있어서,상기 시트형의 분리층-외부전극 복합체는, 상기 서로 겹치는 부분의 폭이 상기 시트형의 분리층-외부전극 복합체 폭의 0.9 배 이내가 되도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제8항에 있어서,상기 분리층-외부전극 복합체는, 상기 분리층과 상기 외부전극이 15 내지 300 N/m의 박리강도를 이루며 일체화되도록 압착하여 형성된 것을 특징으로 하는 케이블형 이차전지.
- 내부전극 지지체;상기 내부전극 지지체의 외면에 나선형으로 권선되어 형성된 시트형의 내부전극-분리층 복합체; 및상기 내부전극-분리층 복합체의 외면에 나선형으로 권선되어 형성된 시트형의 외부전극;을 포함하되,상기 내부전극-분리층 복합체는, 내부전극 및 전극의 단락을 방지하는 분리층이 일체화되도록 압착하여 형성된 케이블형 이차전지.
- 제15항에 있어서,상기 시트형의 내부전극-분리층 복합체는, 일측 방향으로 연장된 스트립 구조인 것을 특징으로 하는 케이블형 이차전지.
- 제15항에 있어서,상기 시트형의 내부전극-분리층 복합체는, 서로 겹치지 않도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제17항에 있어서,상기 시트형의 내부전극-분리층 복합체는, 상기 시트형의 내부전극-분리층 복합체 폭의 2 배 이내의 간격을 두고 서로 이격되어 겹치지 않도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제15항에 있어서,상기 시트형의 내부전극-분리층 복합체는, 서로 겹치도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제19항에 있어서,상기 시트형의 내부전극-분리층 복합체는, 상기 서로 겹치는 부분의 폭이 상기 시트형의 내부전극-분리층 복합체 폭의 0.9 배 이내가 되도록 나선형으로 권선되어 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제15항에 있어서,상기 내부전극-분리층 복합체는, 상기 내부전극과 상기 분리층이 15 내지 300 N/m의 박리강도를 이루며 일체화되도록 압착하여 형성된 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 내부전극 지지체는, 열린 구조인 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 내부전극 지지체는, 중공사, 권선된 와이어형 지지체, 권선된 시트형 지지체 또는 메쉬형 지지체인 것을 특징으로 하는 케이블형 이차전지.
- 제23항에 있어서,상기 중공사는, 폴리에틸렌, 폴리프로필렌, 폴리테트라플루오로에틸렌, 폴리비닐리덴플루오라이드, 폴리아크릴로니트릴, 폴리이미드, 폴리에틸렌테레프탈레이트, 폴리아미드 이미드, 폴리에스테르 이미드, 폴리에테르 설폰, 및 폴리설폰으로 이루어진 군으로부터 선택된 1종 이상으로 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 내부전극은, 내부집전체 및 상기 내부집전체의 일면에 형성된 내부전극 활물질층을 포함하고,상기 외부전극은, 외부집전체 및 상기 외부집전체의 일면에 형성된 외부전극 활물질층을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 내부집전체의 타면 또는 상기 외부집전체의 타면에 형성된 고분자 필름층을 더 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제26항에 있어서,상기 고분자 필름층은, 폴리올레핀, 폴리에스테르, 폴리이미드 및 폴리아미드로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물로 형성되는 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 내부집전체 또는 상기 외부집전체는, 메쉬형 집전체인 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 내부전극은, 상기 내부전극 활물질층의 표면에 형성된 고분자 지지층을 더 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제29항에 있어서,상기 고분자 지지층은, 0.01 ㎛ 내지 10 ㎛의 기공 크기 및 5 내지 95 %의 기공도를 갖는 다공성 고분자층인 것을 특징으로 하는 케이블형 이차전지.
- 제29항에 있어서,상기 고분자 지지층은, 극성 선형 고분자, 옥사이드계 선형 고분자 또는 이들의 혼합물을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제31항에 있어서,상기 극성 선형 고분자는, 폴리아크릴로니트릴 (polyacrylonitrile), 폴리비닐 클로라이드 (polyvinyl chloride), 폴리비닐리덴 풀루오라이드 (polyvinylidene fluoride, PVDF), 폴리비닐리덴 풀루오라이드-헥사풀루오로프로필렌 (polyvinylidene fluoride-co-hexafluoro propylene), 폴리비닐리덴 풀루오라이드-트리클로로에틸렌(polyvinylidene fluoride-co-trichloroethylene), 폴리에틸렌이민 (polyethylene imine), 폴리메틸 메타크릴레이트 (polymethyl methacrylate), 폴리부틸 아크릴레이트 (polybutyl acrylate), 폴리비닐피롤리돈 (polyvinylpyrrolidone), 폴리비닐아세테이트 (polyvinylacetate), 에틸렌 비닐 아세테이트 공중합체 (polyethylene-co-vinyl acetate), 폴리아릴레이트 (polyarylate) 및 폴리p-페닐렌 테레프탈아미드 (Poly-p-phenylene terephthalamide)로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제31항에 있어서,상기 옥사이드계 선형 고분자는, 폴리에틸렌 옥사이드 (polyethylene oxide), 폴리프로필렌 옥사이드 (polypropylene oxide), 폴리옥시메틸렌 (polyoxymethylene) 및 폴리디메틸실록산 (polydimethylsiloxane)으로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 분리층의 폭과 길이는 상기 내부집전체 및 상기 외부집전체의 폭과 길이보다 더 큰 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 내부집전체 및 상기 외부집전체 중 적어도 어느 하나는, 도전재와 바인더로 구성된 프라이머 코팅층을 더 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제35항에 있어서,상기 도전재는, 카본 블랙, 아세틸렌 블랙, 케첸 블랙, 탄소 섬유, 탄소 나노튜브 및 그래핀으로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제35항에 있어서,상기 바인더는, 폴리비닐리덴 풀루오라이드 (polyvinylidene fluoride, PVDF), 폴리비닐리덴 풀루오라이드-헥사풀루오로프로필렌 (polyvinylidene fluoride-co-hexafluoro propylene), 폴리비닐리덴 풀루오라이드-트리클로로에틸렌(polyvinylidene fluoride-co-trichloroethylene), 폴리부틸 아크릴레이트 (polybutyl acrylate), 폴리메틸 메타크릴레이트 (polymethyl methacrylate), 폴리아크릴로니트릴 (polyacrylonitrile), 폴리비닐피롤리돈 (polyvinylpyrrolidone), 폴리비닐아세테이트 (polyvinylacetate), 에틸렌 비닐 아세테이트 공중합체 (polyethylene-co-vinyl acetate), 폴리에틸렌 옥사이드 (polyethylene oxide), 폴리아릴레이트 (polyarylate), 셀룰로오스 아세테이트 (cellulose acetate), 셀룰로오스 아세테이트 부틸레이트 (cellulose acetate butyrate), 셀룰로오스 아세테이트 프로피오네이트 (cellulose acetate propionate), 시아노에틸풀루란 (cyanoethylpullulan), 시아노에틸폴리비닐알콜 (cyanoethylpolyvinylalcohol), 시아노에틸셀룰로오스 (cyanoethylcellulose), 시아노에틸수크로오스 (cyanoethylsucrose), 풀루란 (pullulan), 카르복실 메틸 셀룰로오스 (carboxyl methyl cellulose), 스티렌부타디엔 고무 (styrene-butadiene rubber), 아크릴로니트릴스티렌부타디엔 공중합체 (acrylonitrile-styrene-butadiene copolymer) 및 폴리이미드 (polyimide)로 이루어진 군으로부터 선택된 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 내부집전체 또는 상기 외부집전체의 적어도 일면에, 복수의 함입부가 형성된 것을 특징으로 하는 케이블형 이차전지.
- 제38항에 있어서,상기 복수의 함입부는, 연속적인 패턴을 갖거나, 또는 단속적인 패턴을 갖는 것을 특징으로 하는 케이블형 이차전지.
- 제39항에 있어서,상기 연속적인 패턴은, 서로 이격되어 길이방향으로 형성된 것을 특징으로 하는 케이블형 이차전지.
- 제39항에 있어서,상기 단속적인 패턴은, 복수개의 구멍들이 형성된 것을 특징으로 하는 케이블형 이차전지.
- 제41항에 있어서,상기 복수개의 구멍들은, 각각 원형 또는 다각형인 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 내부집전체는, 스테인리스스틸, 알루미늄, 니켈, 티탄, 소성탄소 또는 구리; 카본, 니켈, 티탄 또는 은으로 표면처리된 스테인리스스틸; 알루미늄-카드뮴합금; 도전재로 표면처리된 비전도성 고분자; 또는 전도성 고분자로 제조된 것을 특징으로 하는 케이블형 이차전지.
- 제43항에 있어서,상기 도전재는, 폴리아세틸렌, 폴리아닐린, 폴리피롤, 폴리티오펜, 폴리설퍼니트리드, ITO(Indum Tin Oxide), 은, 팔라듐 및 니켈로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제43항에 있어서,상기 전도성 고분자는, 폴리아세틸렌, 폴리아닐린, 폴리피롤, 폴리티오펜 및 폴리설퍼니트리드로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제25항에 있어서,상기 외부집전체는, 스테인리스스틸, 알루미늄, 니켈, 티탄, 소성탄소 또는 구리; 카본, 니켈, 티탄 또는 은으로 표면처리된 스테인리스스틸; 알루미늄-카드뮴합금; 도전재로 표면처리된 비전도성 고분자; 전도성 고분자; Ni, Al, Au, Ag, Pd/Ag, Cr, Ta, Cu, Ba 또는 ITO인 금속분말을 포함하는 금속 페이스트; 또는 흑연, 카본블랙 또는 탄소나노튜브인 탄소분말을 포함하는 탄소 페이스트;로 제조된 것을 특징으로 하는 케이블형 이차전지.
- 제46항에 있어서,상기 도전재는, 폴리아세틸렌, 폴리아닐린, 폴리피롤, 폴리티오펜, 폴리설퍼니트리드, ITO(Indum Tin Oxide), 은, 팔라듐 및 니켈로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제46항에 있어서,상기 전도성 고분자는, 폴리아세틸렌, 폴리아닐린, 폴리피롤, 폴리티오펜 및 폴리설퍼니트리드로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 내부전극 지지체는, 내부에 공간이 형성되어 있는 중공형 구조인 것을 특징으로 하는 케이블형 이차전지.
- 제49항에 있어서,상기 내부전극 지지체는, 나선형으로 권선된 하나 이상의 와이어형의 내부전극 지지체, 또는 나선형으로 권선된 하나 이상의 시트형의 내부전극 지지체를 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제49항에 있어서,상기 내부전극 지지체는, 서로 교차하도록 나선형으로 권선된 2개 이상의 와이어형의 내부전극 지지체를 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제49항에 있어서,상기 내부전극 지지체의 내부에 형성되어 있는 공간에, 내부전극 집전체 코어부, 전해질을 포함하는 리튬이온 공급 코어부, 또는 충진 코어부가 형성된 것을 특징으로 하는 케이블형 이차전지.
- 제52항에 있어서,상기 내부전극 집전체 코어부는, 카본나노튜브, 스테인리스스틸, 알루미늄, 니켈, 티탄, 소성탄소 또는 구리; 카본, 니켈, 티탄 또는 은으로 표면처리된 스테인리스스틸; 알루미늄-카드뮴합금; 도전재로 표면처리된 비전도성 고분자; 또는 전도성 고분자로 제조된 것을 특징으로 하는 케이블형 이차전지.
- 제52항에 있어서,상기 리튬이온 공급 코어부는, 겔형 폴리머 전해질 및 지지체를 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제52항에 있어서,상기 리튬이온 공급 코어부는, 액체 전해질 및 다공성 담체를 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제52항에 있어서,상기 전해질은, 에틸렌카보네이트(EC), 프로필렌카보네이트(PC), 부틸렌카보네이트(BC), 비닐렌카보네이트(VC), 디에틸카보네이트(DEC), 디메틸카보네이트(DMC), 에틸메틸카보네이트(EMC), 메틸포르메이트(MF), 감마-부티로락톤(γ-BL;butyrolactone), 설포레인(sulfolane), 메틸아세테이트(MA; methylacetate), 또는 메틸프로피오네이트(MP; methylpropionate)를 사용한 비수전해액;PEO, PVdF, PVdF-HFP, PMMA, PAN 또는 PVAc를 사용한 겔형 고분자 전해질; 또는PEO, PPO(polypropylene oxide), PEI(polyethylene imine), PES(polyethylene sulphide) 또는 PVAc(polyvinyl acetate)를 사용한 고체 전해질; 중에서 선택된 전해질을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제52항에 있어서,상기 전해질은, 리튬염을 더 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제57항에 있어서,상기 리튬염은, LiCl, LiBr, LiI, LiClO4, LiBF4, LiB10Cl10, LiPF6, LiCF3SO3, LiCF3CO2, LiAsF6, LiSbF6, LiAlCl4, CH3SO3Li, CF3SO3Li, (CF3SO2)2NLi, 클로로보란리튬, 저급지방족카르본산리튬 및 테트라페닐붕산리튬으로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제52항에 있어서,상기 충진 코어부는 와이어, 섬유상, 분말상, 메쉬, 또는 발포체 형상을 갖는 고분자 수지, 고무, 또는 무기물을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 내부전극은, 음극 또는 양극이고, 상기 외부전극은, 상기 내부전극에 상응하는 양극 또는 음극인 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 내부전극이 음극이고, 상기 외부전극이 양극인 경우, 내부전극 활물질은, 천연흑연, 인조흑연 또는 탄소질재료; 리튬 함유 티타늄 복합 산화물(LTO), Si, Sn, Li, Zn, Mg, Cd, Ce, Ni 또는 Fe인 금속류(Me); 상기 금속류(Me)로 구성된 합금류; 상기 금속류(Me)의 산화물(MeOx); 및 상기 금속류(Me)와 탄소와의 복합체로 이루어진 군으로부터 선택된 어느 하나의 활물질 입자 또는 이들 중 2종 이상의 혼합물을 포함하고,외부전극 활물질은, LiCoO2, LiNiO2, LiMn2O4, LiCoPO4, LiFePO4, LiNiMnCoO2 및 LiNi 1-x-y-zCoxM1yM2zO2(M1 및 M2는 서로 독립적으로 Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, Mg 및 Mo로 이루어진 군으로부터 선택된 어느 하나이고, x, y 및 z는 서로 독립적으로 산화물 조성 원소들의 원자 분율로서 0 ≤ x < 0.5, 0 ≤ y < 0.5, 0 ≤ z < 0.5, x+y+z ≤ 1임)로 이루어진 군으로부터 선택된 어느 하나의 활물질 입자 또는 이들 중 2종 이상의 혼합물을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 내부전극이 양극이고, 상기 외부전극이 음극인 경우, 내부전극 활물질은, LiCoO2, LiNiO2, LiMn2O4, LiCoPO4, LiFePO4, LiNiMnCoO2 및 LiNi 1-x-y-zCoxM1yM2zO2(M1 및 M2는 서로 독립적으로 Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, Mg 및 Mo로 이루어진 군으로부터 선택된 어느 하나이고, x, y 및 z는 서로 독립적으로 산화물 조성 원소들의 원자 분율로서 0 = x < 0.5, 0 = y < 0.5, 0 = z < 0.5, x+y+z = 1임)로 이루어진 군으로부터 선택된 어느 하나의 활물질 입자 또는 이들 중 2종 이상의 혼합물을 포함하고,외부전극 활물질은, 천연흑연, 인조흑연 또는 탄소질재료; 리튬 함유 티타늄 복합 산화물(LTO), Si, Sn, Li, Zn, Mg, Cd, Ce, Ni 또는 Fe인 금속류(Me); 상기 금속류(Me)로 구성된 합금류; 상기 금속류(Me)의 산화물(MeOx); 및 상기 금속류(Me)와 탄소와의 복합체로 이루어진 군으로부터 선택된 어느 하나의 활물질 입자 또는 이들 중 2종 이상의 혼합물을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 분리층은, 전해질층 또는 세퍼레이터인 것을 특징으로 하는 케이블형 이차전지.
- 제63항에 있어서,상기 전해질층은, PEO, PVdF, PVdF-HFP, PMMA, PAN 또는 PVAc를 사용한 겔형 고분자 전해질; 또는PEO, PPO(polypropylene oxide), PEI(polyethylene imine), PES(polyethylene sulphide) 또는 PVAc(polyvinyl acetate)를 사용한 고체 전해질; 중에서 선택된 전해질을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제63항에 있어서,상기 전해질층은, 리튬염을 더 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제65항에 있어서,상기 리튬염은, LiCl, LiBr, LiI, LiClO4, LiBF4, LiB10Cl10, LiPF6, LiCF3SO3, LiCF3CO2, LiAsF6, LiSbF6, LiAlCl4, CH3SO3Li, CF3SO3Li, (CF3SO2)2NLi, 클로로보란리튬, 저급지방족카르본산리튬 및 테트라페닐붕산리튬으로 이루어진 군으로부터 선택된 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 케이블형 이차전지.
- 제63항에 있어서,상기 세퍼레이터는, 에틸렌 단독중합체, 프로필렌 단독중합체, 에틸렌-부텐 공중합체, 에틸렌-헥센 공중합체 및 에틸렌-메타크릴레이트 공중합체로 이루어진 군에서 선택된 폴리올레핀계 고분자로 제조한 다공성 고분자 기재; 폴리에스테르, 폴리아세탈, 폴리아미드, 폴리카보네이트, 폴리이미드, 폴리에테르에테르케톤, 폴리에테르설폰, 폴리페닐렌옥사이드, 폴리페닐렌설파이드 및 폴리에틸렌나프탈레이트로 이루어진 군에서 선택된 고분자로 제조한 다공성 고분자 기재; 무기물 입자 및 바인더 고분자의 혼합물로 형성된 다공성 기재; 또는 상기 다공성 고분자 기재의 적어도 일면상에 무기물 입자 및 바인더 고분자의 혼합물로 형성된 다공성 코팅층을 구비한 세퍼레이터인 것을 특징으로 하는 케이블형 이차전지.
- 제67항에 있어서,상기 다공성 고분자 기재는, 다공성 고분자 필름 기재, 또는 다공성 부직포 기재인 것을 특징으로 하는 케이블형 이차전지.
- 제1항, 제8항 및 제15항 중 어느 한 항에 있어서,상기 케이블형 이차전지의 외면을 둘러싸도록 형성된 보호피복을 더 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제69항에 있어서,상기 보호피복은, 고분자 수지로 형성된 것을 특징으로 하는 케이블형 이차전지.
- 제70항에 있어서,상기 고분자 수지는, PET, PVC, HDPE 및 에폭시 수지로 이루어진 군으로부터 선택되는 어느 하나 또는 이들 중 2종 이상의 혼합물을 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제70항에 있어서,상기 보호피복은, 수분 차단층을 더 포함하는 것을 특징으로 하는 케이블형 이차전지.
- 제72항에 있어서,상기 수분 차단층은, 알루미늄 또는 액정 고분자로 형성된 것을 특징으로 하는 케이블형 이차전지.
- 전해질을 포함하는 리튬이온 공급 코어부;상기 리튬이온 공급 코어부의 외면을 둘러싸며 형성된 열린 구조의 내부전극 지지체; 및상기 내부전극 지지체의 외면을 둘러싸며 나선형으로 권선되어 형성된 시트형의 내부전극-분리층-외부전극 복합체;를 포함하되,상기 내부전극-분리층-외부전극 복합체는, 내부집전체와 상기 내부집전체의 표면에 형성된 내부전극 활물질층을 구비하는 내부전극, 전극의 단락을 방지하는 분리층 및 외부집전체와 상기 외부집전체의 표면에 형성된 외부전극 활물질층을 구비하는 외부전극이 일체화되도록 압착하여 형성된 케이블형 이차전지.
- 전해질을 포함하는 리튬이온 공급 코어부;상기 리튬이온 공급 코어부의 외면을 둘러싸며 형성된 열린 구조의 내부전극 지지체;상기 내부전극 지지체의 외면에 나선형으로 권선되어 형성되며, 내부집전체와 상기 내부집전체의 표면에 형성된 내부전극 활물질층을 구비하는 시트형의 내부전극; 및상기 내부전극의 외면에 나선형으로 권선되어 형성된 시트형의 분리층-외부전극 복합체;를 포함하되,상기 분리층-외부전극 복합체는, 전극의 단락을 방지하는 분리층 및 외부집전체와 상기 외부집전체의 표면에 형성된 외부전극 활물질층을 구비하는 외부전극이 일체화되도록 압착하여 형성된 케이블형 이차전지.
- 전해질을 포함하는 리튬이온 공급 코어부;상기 리튬이온 공급 코어부의 외면을 둘러싸며 형성된 열린 구조의 내부전극 지지체;상기 내부전극 지지체의 외면에 나선형으로 권선되어 형성된 시트형의 내부전극-분리층 복합체; 및상기 내부전극-분리층 복합체의 외면에 나선형으로 권선되어 형성되며, 외부집전체와 상기 외부집전체의 표면에 형성된 외부전극 활물질층을 구비하는 시트형의 외부전극;을 포함하되,상기 내부전극-분리층 복합체는, 내부집전체와 상기 내부집전체의 표면에 형성된 내부전극 활물질층을 구비하는 내부전극 및 전극의 단락을 방지하는 분리층이 일체화되도록 압착하여 형성된 케이블형 이차전지.
- 서로 평행하게 배치된 2 이상의 내부전극 지지체;각각의 상기 내부전극 지지체의 외면에 나선형으로 권선되어 형성된 2 이상의 시트형의 내부전극; 및상기 내부전극들의 외면을 함께 둘러싸며 나선형으로 권선되어 형성되되, 전극의 단락을 방지하는 분리층, 및 외부전극이 일체화되도록 합착하여 형성된 시트형의 분리층-외부전극 복합체;를 포함하는 케이블형 이차전지.
- 전해질을 포함하는 2 이상의 리튬이온 공급 코어부;각각의 상기 리튬이온 공급 코어부의 외면을 둘러싸며 형성된 열린 구조의 내부전극 지지체;각각의 상기 내부전극 지지체의 외면에 나선형으로 권선되어 형성되고, 내부집전체와 상기 내부집전체의 표면에 형성된 내부전극 활물질층을 구비하는 서로 평행하게 배치된 2 이상의 내부전극; 및상기 내부전극들의 외면을 함께 둘러싸며 나선형으로 권선되어 형성되고, 전극의 단락을 방지하는 분리층 및 외부집전체와 상기 외부집전체의 표면에 형성된 외부전극 활물질층을 구비하는 외부전극이 일체화되도록 압착하여 형성된 시트형의 분리층-외부전극 복합체;를 포함하는 케이블형 이차전지.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14733494.0A EP2822084B1 (en) | 2013-05-07 | 2014-05-07 | Cable-type secondary battery |
JP2015515970A JP6037579B2 (ja) | 2013-05-07 | 2014-05-07 | ケーブル型二次電池 |
US14/483,373 US9070952B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
US14/483,328 US9083061B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
US14/483,318 US9077048B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
US14/483,348 US9142865B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0051561 | 2013-05-07 | ||
KR20130051561 | 2013-05-07 | ||
KR10-2014-0054275 | 2014-05-07 | ||
KR1020140054275A KR101465164B1 (ko) | 2013-05-07 | 2014-05-07 | 케이블형 이차전지 |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/483,328 Continuation US9083061B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
US14/483,318 Continuation US9077048B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
US14/483,373 Continuation US9070952B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
US14/483,348 Continuation US9142865B2 (en) | 2013-05-07 | 2014-09-11 | Cable-type secondary battery |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014182058A1 true WO2014182058A1 (ko) | 2014-11-13 |
Family
ID=51999948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2014/004042 WO2014182058A1 (ko) | 2013-05-07 | 2014-05-07 | 케이블형 이차전지 |
Country Status (6)
Country | Link |
---|---|
US (4) | US9070952B2 (ko) |
EP (1) | EP2822084B1 (ko) |
JP (1) | JP6037579B2 (ko) |
KR (3) | KR101465164B1 (ko) |
CN (2) | CN204464379U (ko) |
WO (1) | WO2014182058A1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018508966A (ja) * | 2015-02-09 | 2018-03-29 | エルジー・ケム・リミテッド | ケーブル型二次電池 |
CN110692150A (zh) * | 2017-09-29 | 2020-01-14 | 株式会社Lg化学 | 电极混合物制造方法和电极混合物 |
US11664501B2 (en) | 2017-11-29 | 2023-05-30 | Ningde Amperex Technology Limited | Electrode assembly and secondary battery having a protective layer therein |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6037579B2 (ja) * | 2013-05-07 | 2016-12-07 | エルジー・ケム・リミテッド | ケーブル型二次電池 |
KR101752373B1 (ko) * | 2014-10-31 | 2017-06-29 | 주식회사 엘지화학 | 전극 복합체, 그를 포함하는 이차전지 및 케이블형 전지 이차전지 |
JP6111453B2 (ja) * | 2015-02-26 | 2017-04-12 | 株式会社アイ.エス.テイ | ポリイミドコーティング活物質粒子、電極材料用スラリー、負極、電池、及び、ポリイミドコーティング活物質粒子の製造方法 |
KR101940149B1 (ko) * | 2015-07-03 | 2019-01-18 | 주식회사 엘지화학 | 이차전지 및 그의 제조방법 |
KR20170028110A (ko) | 2015-09-03 | 2017-03-13 | 주식회사 엘지화학 | 케이블형 이차전지 |
US10770758B2 (en) | 2015-10-21 | 2020-09-08 | Lg Chem, Ltd. | Cable-type secondary battery including winding core having guide portions |
KR102065733B1 (ko) * | 2015-10-21 | 2020-01-13 | 주식회사 엘지화학 | 전극 복합체, 그를 포함하는 이차전지 및 케이블형 전지 이차전지 |
US10770732B2 (en) | 2015-10-21 | 2020-09-08 | Lg Chem, Ltd. | Cable-type secondary battery including spaced spring inner electrode support wound on outside of winding core |
CN105552367B (zh) * | 2015-12-21 | 2018-04-17 | 中盐安徽红四方锂电有限公司 | 一种含cnt的锂离子电池水性正极浆料及其制备方法 |
TWI689123B (zh) * | 2016-01-07 | 2020-03-21 | 南韓商Lg化學股份有限公司 | 製備纜型二次電池組之設備及方法與藉由該方法製備之纜型二次電池組 |
KR102128095B1 (ko) * | 2016-02-05 | 2020-06-29 | 주식회사 엘지화학 | 케이블형 이차전지 |
US20180076453A1 (en) | 2016-06-23 | 2018-03-15 | Government Of The United States As Represented By The Secretary Of The Air Force | Bendable, creasable, and printable batteries with enhanced safety and high temperture stability - methods of fabrication, and methods of using the same |
KR102107216B1 (ko) * | 2016-07-05 | 2020-05-06 | 주식회사 엘지화학 | 이차 전지용 카트리지 및 이를 포함하는 배터리 모듈 |
KR102580262B1 (ko) * | 2017-01-04 | 2023-09-20 | 나노텍 인스트러먼츠, 인코포레이티드 | 형상 적응성 로프형 플렉시블 수퍼커패시터 |
CN110603669B (zh) * | 2017-09-01 | 2022-07-22 | 株式会社Lg新能源 | 制造线缆型二次电池用负极的方法、由此制造的负极以及包含所述负极的线缆型二次电池 |
EP3678247A4 (en) * | 2017-12-21 | 2020-12-16 | Lg Chem, Ltd. | FLEXIBLE SECONDARY BATTERY INCLUDING A BIPOLAR ELECTRODE |
US11211606B2 (en) | 2017-12-28 | 2021-12-28 | The Hong Kong Polytechnic University | Electrode for battery and fabrication method thereof |
JP6524386B1 (ja) * | 2018-04-30 | 2019-06-05 | 裕憲 松井 | 螺旋型二次電池 |
CN108832057A (zh) * | 2018-06-20 | 2018-11-16 | 湖南辰砾新材料有限公司 | 一种锂电池用隔膜及其制备方法 |
CN113471630B (zh) * | 2021-06-30 | 2023-10-10 | 宁德新能源科技有限公司 | 卷绕式电芯及电池 |
KR20240022277A (ko) * | 2022-08-11 | 2024-02-20 | 삼성에스디아이 주식회사 | 이차 전지용 음극 및 이를 포함하는 이차 전지 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050099903A (ko) | 2004-04-12 | 2005-10-17 | 경상대학교산학협력단 | 실형태의 가변형 전지 |
KR100582557B1 (ko) * | 2004-11-25 | 2006-05-22 | 한국전자통신연구원 | 표면 패터닝된 음극 집전체로 이루어지는 리튬금속 고분자이차전지용 음극 및 그 제조 방법 |
KR20080015373A (ko) * | 2006-08-14 | 2008-02-19 | 소니 가부시끼가이샤 | 비수 전해질 2차 전지 |
JP2011054502A (ja) * | 2009-09-04 | 2011-03-17 | Hitachi Maxell Ltd | リチウム二次電池およびその製造方法 |
KR20130040166A (ko) * | 2011-10-13 | 2013-04-23 | 주식회사 엘지화학 | 케이블형 이차전지 |
KR20130040160A (ko) * | 2011-10-13 | 2013-04-23 | 주식회사 엘지화학 | 케이블형 이차전지 |
Family Cites Families (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4522897A (en) | 1983-10-14 | 1985-06-11 | Cape Cod Research, Inc. | Rope batteries |
DE3829419C1 (ko) * | 1988-08-31 | 1989-12-28 | Accumulatorenwerke Hoppecke Carl Zoellner & Sohn Gmbh & Co Kg, 5790 Brilon, De | |
FR2652450B1 (fr) | 1989-09-22 | 1991-11-29 | Accumulateurs Fixes | Procede de fabrication d'une electrode a support de type mousse pour generateur electrochimique et electrode obtenue par ce procede. |
US5478676A (en) | 1994-08-02 | 1995-12-26 | Rexam Graphics | Current collector having a conductive primer layer |
JP3407501B2 (ja) | 1995-09-29 | 2003-05-19 | 松下電器産業株式会社 | ポリマ電解質およびそれを用いたリチウム・ポリマ電池 |
AU1438197A (en) | 1996-01-25 | 1997-08-20 | Danionics A/S | Electrode/current collector, laminates for an electrochemical device |
JP3260319B2 (ja) | 1998-04-08 | 2002-02-25 | ティーディーケイ株式会社 | シート型電極・電解質構造体の製造方法 |
US6277514B1 (en) | 1998-12-17 | 2001-08-21 | Moltech Corporation | Protective coating for separators for electrochemical cells |
JP3756815B2 (ja) | 1999-06-22 | 2006-03-15 | 三菱電機株式会社 | 電池用セパレータ及び電池 |
JP2001110244A (ja) * | 1999-10-12 | 2001-04-20 | Sony Corp | バッテリケーブル |
JP2001110445A (ja) * | 1999-10-12 | 2001-04-20 | Sony Corp | コード型バッテリ |
US6403263B1 (en) | 2000-09-20 | 2002-06-11 | Moltech Corporation | Cathode current collector for electrochemical cells |
US20020164441A1 (en) | 2001-03-01 | 2002-11-07 | The University Of Chicago | Packaging for primary and secondary batteries |
CN1260848C (zh) | 2002-03-28 | 2006-06-21 | Tdk株式会社 | 锂二次电池 |
JP2005038612A (ja) | 2003-07-15 | 2005-02-10 | Ngk Spark Plug Co Ltd | リチウムイオン二次電池およびその製造方法 |
TWI258238B (en) | 2003-11-05 | 2006-07-11 | Lg Chemical Ltd | Functional polymer film-coated electrode and electrochemical device using the same |
KR100569188B1 (ko) | 2004-01-16 | 2006-04-10 | 한국과학기술연구원 | 탄소-다공성 지지체 복합 전극 및 그 제조방법 |
KR100666821B1 (ko) | 2004-02-07 | 2007-01-09 | 주식회사 엘지화학 | 유/무기 복합 다공성 코팅층이 형성된 전극 및 이를포함하는 전기 화학 소자 |
JP2006012835A (ja) | 2004-06-23 | 2006-01-12 | Samsung Sdi Co Ltd | 二次電池 |
US8247135B2 (en) | 2004-09-14 | 2012-08-21 | Case Western Reserve University | Light-weight, flexible edge collected fuel cells |
CN101048898B (zh) | 2004-10-29 | 2012-02-01 | 麦德托尼克公司 | 锂离子电池及医疗装置 |
WO2006093049A1 (ja) | 2005-03-02 | 2006-09-08 | Matsushita Electric Industrial Co., Ltd. | リチウムイオン二次電池およびその製造法 |
JP4826214B2 (ja) | 2005-11-04 | 2011-11-30 | 日産自動車株式会社 | 駆動システム |
US8828591B2 (en) | 2006-03-02 | 2014-09-09 | Sony Corporation | External packaging material for battery device, nonaqueous electrolyte secondary battery using the same, and battery pack |
JP5092457B2 (ja) | 2006-03-02 | 2012-12-05 | ソニー株式会社 | 電池素子外装材、これを用いた非水電解質二次電池及び電池パック |
KR100879893B1 (ko) | 2006-07-10 | 2009-01-21 | 주식회사 엘지화학 | 실링부의 안전성이 향상된 이차전지 |
KR100918751B1 (ko) | 2006-07-26 | 2009-09-24 | 주식회사 엘지화학 | 분리막과의 계면 접착이 향상된 전극 및 이를 포함하는전기 화학 소자 |
WO2008049037A2 (en) | 2006-10-17 | 2008-04-24 | Maxwell Technologies, Inc. | Electrode for energy storage device |
US7976976B2 (en) | 2007-02-07 | 2011-07-12 | Rosecreek Technologies Inc. | Composite current collector |
KR20120025619A (ko) * | 2007-05-10 | 2012-03-15 | 히다치 막셀 에너지 가부시키가이샤 | 전기 화학 소자 |
KR101147604B1 (ko) | 2007-10-12 | 2012-05-23 | 주식회사 엘지화학 | 젤리-롤형 전극조립체의 변형을 억제하기 위한 제조방법 |
JP2011501383A (ja) * | 2007-10-26 | 2011-01-06 | サイオン パワー コーポレイション | バッテリ電極用プライマー |
JP5316809B2 (ja) | 2007-11-13 | 2013-10-16 | 住友電気工業株式会社 | リチウム電池およびその製造方法 |
CN102084525A (zh) | 2008-07-29 | 2011-06-01 | 松下电器产业株式会社 | 非水电解质二次电池用集电体、非水电解质二次电池用电极及它们的制造方法、以及非水电解质二次电池 |
EP2333876B1 (en) | 2008-09-03 | 2016-08-03 | LG Chem, Ltd. | Separator having porous coating layer and electrochemical device containing the same |
CN102388483B (zh) | 2009-01-12 | 2016-04-06 | A123系统有限责任公司 | 叠层电池及其制备方法 |
JP4527190B1 (ja) | 2009-01-14 | 2010-08-18 | パナソニック株式会社 | 非水系電池用正極板、非水系電池用電極群およびその製造方法、並びに、角形非水系二次電池およびその製造方法 |
JP4835742B2 (ja) | 2009-02-20 | 2011-12-14 | ソニー株式会社 | 電池および電池パック |
KR101036164B1 (ko) | 2009-04-24 | 2011-05-23 | 성균관대학교산학협력단 | 복합전극 및 이의 제조방법 |
KR101064986B1 (ko) | 2009-06-04 | 2011-09-15 | 강원대학교산학협력단 | 세라믹 다공성 지지체, 그를 이용한 강화 복합 전해질 막 및 그를 구비한 막-전극 어셈블리 |
WO2011028251A2 (en) | 2009-08-24 | 2011-03-10 | Sion Power Corporation | Release system for electrochemical cells |
KR101438980B1 (ko) | 2009-10-02 | 2014-09-11 | 도요타지도샤가부시키가이샤 | 리튬 2차 전지 및 상기 전지용 정극 |
WO2011093661A2 (ko) * | 2010-02-01 | 2011-08-04 | 주식회사 엘지화학 | 케이블형 이차전지 |
KR101279409B1 (ko) * | 2010-02-01 | 2013-06-27 | 주식회사 엘지화학 | 케이블형 이차전지 |
KR101115922B1 (ko) * | 2010-02-02 | 2012-02-13 | 주식회사 엘지화학 | 케이블형 이차전지의 제조방법 |
JP2011181441A (ja) * | 2010-03-03 | 2011-09-15 | Sony Corp | 円筒型非水電解質電池 |
KR101105355B1 (ko) | 2010-03-26 | 2012-01-16 | 국립대학법인 울산과학기술대학교 산학협력단 | 플렉서블한 전극용 집전체, 이의 제조방법 및 이를 이용한 음극 |
KR20110127972A (ko) | 2010-05-20 | 2011-11-28 | 주식회사 엘지화학 | 금속 코팅된 고분자 집전체를 갖는 케이블형 이차전지 |
KR101322694B1 (ko) | 2010-06-14 | 2013-10-28 | 주식회사 엘지화학 | 전기화학소자용 전해질, 그 제조방법 및 이를 구비한 전기화학소자 |
KR101432862B1 (ko) | 2010-06-15 | 2014-08-26 | 코오롱인더스트리 주식회사 | 다공성 지지체 및 그 제조방법 |
KR20120000708A (ko) | 2010-06-28 | 2012-01-04 | 주식회사 엘지화학 | 전기화학소자용 음극, 그 제조방법 및 이를 구비한 전기화학소자 |
KR101351896B1 (ko) | 2010-06-28 | 2014-01-22 | 주식회사 엘지화학 | 케이블형 이차전지용 음극 및 이를 구비하는 케이블형 이차전지 |
KR101252981B1 (ko) | 2010-08-05 | 2013-04-15 | 주식회사 엘지화학 | 안전성이 향상된 이차전지용 파우치 및 이를 이용한 파우치형 이차전지, 중대형 전지팩 |
KR101326623B1 (ko) | 2010-08-09 | 2013-11-07 | 주식회사 엘지화학 | 프라이머가 코팅된 양극 집전체 및 이를 포함하는 마그네슘 이차전지 |
KR101322695B1 (ko) * | 2010-08-25 | 2013-10-25 | 주식회사 엘지화학 | 케이블형 이차전지 |
KR101322693B1 (ko) | 2010-08-27 | 2013-10-25 | 주식회사 엘지화학 | 케이블형 이차전지 |
US20120115259A1 (en) | 2010-11-10 | 2012-05-10 | Keon Jae Lee | Method for fabricating flexible electronic device and electronic device fabricated thereby |
KR101198806B1 (ko) | 2010-12-06 | 2012-11-07 | 현대자동차주식회사 | 다공절연층을 포함하는 이차전지 전극 및 그 제조 방법 |
AU2011346550A1 (en) * | 2010-12-23 | 2013-07-25 | Garal Pty Ltd | Fuel cell and electrolyser structure |
KR101655510B1 (ko) | 2010-12-31 | 2016-09-07 | 제너럴 일렉트릭 캄파니 | 다공성 지지체 상에 중합체 코팅을 형성시키기 위한 진공 챔버 방법 |
KR101404061B1 (ko) | 2011-02-17 | 2014-06-05 | 주식회사 엘지화학 | 케이블형 이차전지 |
CN103430370B (zh) * | 2011-03-11 | 2015-12-23 | 株式会社Lg化学 | 线缆型二次电池 |
WO2013055187A1 (ko) | 2011-10-13 | 2013-04-18 | 주식회사 엘지화학 | 케이블형 이차전지 |
EP2768057B1 (en) | 2011-10-13 | 2016-08-31 | LG Chem, Ltd. | Cable-type secondary battery |
KR101380586B1 (ko) | 2011-10-25 | 2014-04-01 | 주식회사 엘지화학 | 이차전지용 음극 및 이를 구비하는 이차전지 |
WO2013062337A2 (ko) | 2011-10-25 | 2013-05-02 | 주식회사 엘지화학 | 케이블형 이차전지 |
KR101479298B1 (ko) * | 2011-10-25 | 2015-01-02 | 주식회사 엘지화학 | 케이블형 이차전지 |
US8993172B2 (en) * | 2011-12-10 | 2015-03-31 | Kalptree Energy, Inc. | Li-ion battery and battery active components on metal wire |
US8895189B2 (en) | 2012-02-03 | 2014-11-25 | Nanotek Instruments, Inc. | Surface-mediated cells with high power density and high energy density |
KR101470559B1 (ko) | 2012-08-30 | 2014-12-08 | 주식회사 엘지화학 | 케이블형 이차전지용 음극 및 그를 포함하는 케이블형 이차전지 |
KR101548789B1 (ko) | 2012-12-21 | 2015-09-01 | 주식회사 엘지화학 | 케이블형 이차전지 및 이의 제조 방법 |
KR101470556B1 (ko) | 2013-05-07 | 2014-12-10 | 주식회사 엘지화학 | 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지 |
WO2014182059A1 (ko) * | 2013-05-07 | 2014-11-13 | 주식회사 엘지화학 | 케이블형 이차전지 |
JP6037579B2 (ja) * | 2013-05-07 | 2016-12-07 | エルジー・ケム・リミテッド | ケーブル型二次電池 |
-
2014
- 2014-05-07 JP JP2015515970A patent/JP6037579B2/ja active Active
- 2014-05-07 WO PCT/KR2014/004042 patent/WO2014182058A1/ko active Application Filing
- 2014-05-07 EP EP14733494.0A patent/EP2822084B1/en active Active
- 2014-05-07 CN CN201420232808.8U patent/CN204464379U/zh active Active
- 2014-05-07 KR KR1020140054275A patent/KR101465164B1/ko active IP Right Grant
- 2014-05-07 CN CN201410191112.XA patent/CN104466233B/zh active Active
- 2014-06-27 KR KR1020140079833A patent/KR101542096B1/ko active IP Right Grant
- 2014-09-11 US US14/483,373 patent/US9070952B2/en active Active
- 2014-09-11 US US14/483,328 patent/US9083061B2/en active Active
- 2014-09-11 US US14/483,318 patent/US9077048B2/en active Active
- 2014-09-11 US US14/483,348 patent/US9142865B2/en active Active
-
2015
- 2015-04-22 KR KR1020150056740A patent/KR101747332B1/ko active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050099903A (ko) | 2004-04-12 | 2005-10-17 | 경상대학교산학협력단 | 실형태의 가변형 전지 |
KR100582557B1 (ko) * | 2004-11-25 | 2006-05-22 | 한국전자통신연구원 | 표면 패터닝된 음극 집전체로 이루어지는 리튬금속 고분자이차전지용 음극 및 그 제조 방법 |
KR20080015373A (ko) * | 2006-08-14 | 2008-02-19 | 소니 가부시끼가이샤 | 비수 전해질 2차 전지 |
JP2011054502A (ja) * | 2009-09-04 | 2011-03-17 | Hitachi Maxell Ltd | リチウム二次電池およびその製造方法 |
KR20130040166A (ko) * | 2011-10-13 | 2013-04-23 | 주식회사 엘지화학 | 케이블형 이차전지 |
KR20130040160A (ko) * | 2011-10-13 | 2013-04-23 | 주식회사 엘지화학 | 케이블형 이차전지 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2822084A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018508966A (ja) * | 2015-02-09 | 2018-03-29 | エルジー・ケム・リミテッド | ケーブル型二次電池 |
CN110692150A (zh) * | 2017-09-29 | 2020-01-14 | 株式会社Lg化学 | 电极混合物制造方法和电极混合物 |
US11664501B2 (en) | 2017-11-29 | 2023-05-30 | Ningde Amperex Technology Limited | Electrode assembly and secondary battery having a protective layer therein |
Also Published As
Publication number | Publication date |
---|---|
CN104466233A (zh) | 2015-03-25 |
CN204464379U (zh) | 2015-07-08 |
EP2822084A4 (en) | 2016-01-13 |
JP2015518641A (ja) | 2015-07-02 |
CN104466233B (zh) | 2017-04-12 |
KR101542096B1 (ko) | 2015-08-06 |
KR101747332B1 (ko) | 2017-06-14 |
US20140377616A1 (en) | 2014-12-25 |
US9083061B2 (en) | 2015-07-14 |
JP6037579B2 (ja) | 2016-12-07 |
US20140377614A1 (en) | 2014-12-25 |
US9077048B2 (en) | 2015-07-07 |
US20140377613A1 (en) | 2014-12-25 |
US20140377615A1 (en) | 2014-12-25 |
KR101465164B1 (ko) | 2014-11-25 |
US9142865B2 (en) | 2015-09-22 |
KR20140132289A (ko) | 2014-11-17 |
KR20150051210A (ko) | 2015-05-11 |
EP2822084B1 (en) | 2016-12-14 |
EP2822084A1 (en) | 2015-01-07 |
KR20140132305A (ko) | 2014-11-17 |
US9070952B2 (en) | 2015-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014182058A1 (ko) | 케이블형 이차전지 | |
WO2014182059A1 (ko) | 케이블형 이차전지 | |
WO2014182056A1 (ko) | 케이블형 이차전지 및 그의 제조방법 | |
WO2014182062A1 (ko) | 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지 | |
WO2014182060A1 (ko) | 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지 | |
WO2016068651A2 (ko) | 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지 | |
WO2014182063A1 (ko) | 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지 | |
WO2018034526A1 (ko) | 다중 보호층을 포함하는 음극 및 이를 포함하는 리튬 이차전지 | |
WO2014178590A1 (ko) | 케이블형 이차전지용 패키징 및 그를 포함하는 케이블형 이차전지 | |
WO2014092471A1 (ko) | 이차전지용 전극, 그를 포함하는 이차전지 및 케이블형 이차전지 | |
WO2015080499A1 (ko) | 케이블형 이차전지 | |
WO2014182064A1 (ko) | 이차전지용 전극, 그의 제조방법, 그를 포함하는 이차전지 및 케이블형 이차전지 | |
WO2017135793A1 (ko) | 케이블형 이차전지 및 이의 제조방법 | |
WO2019050346A1 (ko) | 리튬 전극 및 이를 포함하는 리튬 이차전지, 및 플렉서블 이차 전지 | |
WO2017039385A1 (ko) | 점착력이 상이한 점착 코팅부들을 포함하는 분리막 및 이를 포함하는 전극조립체 | |
WO2016068684A1 (ko) | 다층형 케이블형 이차전지 | |
WO2014035192A1 (ko) | 케이블형 이차전지용 음극 및 그를 포함하는 케이블형 이차전지 | |
WO2016129939A1 (ko) | 케이블형 이차전지 | |
WO2020067778A1 (ko) | 전기화학소자용 분리막 및 이를 제조하는 방법 | |
WO2020159296A1 (ko) | 절연필름을 포함하는 전극 조립체, 이의 제조방법, 및 이를 포함하는 리튬 이차전지 | |
WO2017069586A1 (ko) | 케이블형 이차전지 | |
WO2019013449A1 (ko) | 전극 보호층을 포함하는 음극 및 이를 적용한 리튬 이차전지 | |
WO2016068683A1 (ko) | 다층형 케이블형 이차전지 | |
WO2020080905A1 (ko) | 이차전지 패키징용 필름 및 이를 포함하는 이차전지 | |
WO2018164402A1 (ko) | 전극 조립체 및 이를 포함하는 리튬 전지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
REEP | Request for entry into the european phase |
Ref document number: 2014733494 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014733494 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2015515970 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14733494 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |