WO2015105303A1 - 불활성 입자가 코팅되어 있는 전극조립체를 포함하는 전지셀 - Google Patents
불활성 입자가 코팅되어 있는 전극조립체를 포함하는 전지셀 Download PDFInfo
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- WO2015105303A1 WO2015105303A1 PCT/KR2015/000057 KR2015000057W WO2015105303A1 WO 2015105303 A1 WO2015105303 A1 WO 2015105303A1 KR 2015000057 W KR2015000057 W KR 2015000057W WO 2015105303 A1 WO2015105303 A1 WO 2015105303A1
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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- H—ELECTRICITY
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- 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
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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- H—ELECTRICITY
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- 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
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- 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
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- 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
- H01M4/04—Processes of manufacture in general
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- 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
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- 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
- H01M4/139—Processes of manufacture
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- 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
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- 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
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
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- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
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- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
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- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/121—Organic material
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- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
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- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/131—Primary casings, jackets or wrappings of a single cell or a single battery characterised by physical properties, e.g. gas-permeability or size
- H01M50/136—Flexibility or foldability
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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- 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
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- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
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- 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
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- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
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- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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- 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
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- 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
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a battery cell comprising an electrode assembly coated with inert particles.
- Lithium secondary batteries occupy an important position on the basis of development into such a ubiquitous society.
- the rechargeable lithium battery is widely used as an energy source for wireless mobile devices, and has been proposed as a solution for air pollution of conventional gasoline and diesel vehicles using fossil fuels. It is also used as an energy source for electric vehicles and hybrid electric vehicles.
- the lithium secondary battery is diversified to provide output and capacity suitable for the device to which the lithium secondary battery is applied.
- miniaturization and thinning are strongly demanded.
- the lithium secondary battery may be classified into a cylindrical battery cell, a square battery cell, a pouch-type battery cell, and the like according to its shape.
- a pouch-type battery cell that can be stacked with high integration, has a high energy density per weight, and is easy to deform, has attracted much attention.
- FIG. 1 and 2 schematically show a general structure of a conventional representative pouch type secondary battery as an exploded perspective view.
- the pouch type secondary battery 10 includes two stacked electrode assemblies 20 having a plurality of electrode tabs 21 and 22 protruding therefrom, and two electrode tabs 21 and 22 respectively connected to the electrode tabs 21 and 22. It comprises a battery case 40 having a structure for accommodating and sealing the electrode lead (30, 31) and the stacked electrode assembly 20 so that a part of the electrode lead (30, 31) is exposed to the outside.
- the battery case 40 includes a lower case 42 including a recess 41 having a concave shape in which the stacked electrode assembly 20 can be seated, and a stacked electrode assembly 20 as a cover of the lower case 42.
- the upper case 43 is sealed.
- the upper case 43 and the lower case 42 are heat-sealed in a state where the stacked electrode assembly 20 is embedded, so that the upper sealing portion 44, the side sealing portions 45 and 46, and the lower sealing portion 47 are formed. ).
- FIG. 1 the upper case 43 and the lower case 42 are shown as separate members, respectively, but as shown in FIG. 2, a hinged structure in which one end portion is integrated and continuous is also possible.
- FIG. 1 and 2 illustrate a pouch-type battery cell having a structure in which electrode terminals having electrode structures connected to electrode leads are formed at one end, but electrode terminals are formed at one end and the other end, respectively.
- the pouch-type battery cell and the like can also be produced in the same manner as above.
- Figure 1 and Figure 2 but showing a pouch-type battery cell using a stacked electrode assembly, even when using a wound or jelly-roll type electrode assembly can be prepared in the same manner as above.
- a pouch-type battery cell is generally manufactured in a substantially rectangular parallelepiped shape.
- the design of the device may not only be in the shape of a cuboid, but may also be a bendable shape.
- the side surface may be curved to improve the grip, and in the case of a flexible display, it may be bent or bent and manufactured in various forms.
- the present invention aims to solve the problems of the prior art as described above and the technical problems that have been requested from the past.
- the inventors of the present application after extensive research and various experiments, as described later, the battery cell that can be flexibly deformed according to the shape of the device, the electrode is formed on the outer surface of the coating portion containing inert particles In the case of including the assembly, it was confirmed that safety can be ensured even when the shape of the battery is deformed in response to devices of various designs, and the present invention has been completed.
- a battery cell embedded in a variable cell case with an electrode assembly impregnated in an electrolyte solution which can be flexibly deformed according to the shape of a device on which the cell is mounted, wherein at least one of the outer surfaces of the electrode assembly including a coating part comprising the electrode assembly It is characterized by being formed on one surface.
- the cell case may also have a curved shape by the inert particles of the coating part formed on the outer surface of the electrode assembly.
- the battery cell according to the present invention by forming a bumpy bent on the outer surface of the electrode assembly, the curved shape is exposed to the variable cell case as it is to increase the surface area of the cell case relative to the electrode area, devices of various designs Even when the shape of the battery is deformed in response to this, it is possible to minimize the occurrence of unintentional wrinkles on the cell case, thereby effectively preventing the breakdown or leakage of electrolyte due to the exposure of the metal layer due to the damage of the cell case. The safety of the battery can be secured.
- the formation position of the coating part including the inert particles is not limited, but in detail based on the entire outer surfaces of the electrode assembly, the coating part may be formed on the top and / or bottom surface of the electrode assembly based on the stacking direction of the electrode. have.
- the coating part including the inert particles may be partially or entirely formed on the basis of at least one surface on which the coating part is formed among the outer surfaces of the electrode assembly. It may be formed in detail.
- the position is not limited, but it is preferable that the coating part is formed at the bent part with many occurrences of wrinkles.
- the configuration of the coating portion including the inert particles is not limited and various configurations are possible.
- the coating comprising the inert particles may be a layer of inert particles in which the inert particles are scattered on the outer surface of the electrode assembly.
- the inert particles form the coating part, and the inert particles form a curvature on the outer surface of the electrode assembly as it is regularly or irregularly scattered on the outer surface of the electrode assembly.
- a binder may be further coated on the surface of the inert particles so as to be properly fixed after being dispersed on the outer surface of the electrode assembly.
- the coating part including the inert particles may include a binder layer added to the outer surface of the electrode assembly and inert particles dispersed in the binder layer.
- a binder layer may be first formed, and the coating part may be formed by scattering the inert particles thereon.
- the thickness of the binder layer is preferably thinner than the size of the inert particles, which, when the thickness of the binder layer is thicker, the inert particles may sink or buried into the interior of the binder layer, resulting in the present invention
- the thickness of the binder layer may be, in detail, 10 to 95% of the size of the inert particles.
- the inert particles When the thickness of the binder layer is less than 10% of the size of the inert particle particles, the inert particles may not have enough adhesive force to be properly fixed to the outer surface of the electrode assembly, and when the thickness of the binder layer exceeds 95%, most of the inert particles are Because it is buried inside the binder layer, it is difficult to form a bend that is exposed to the cell case, and even if the bend is formed, the surface area cannot be large enough to effectively prevent wrinkles.
- the inert particles may bend to the outer surface of the electrode assembly regardless of the specific gravity of the inert particles.
- the coating part including the inert particles may be a mixture layer including the inert particles and the binder.
- inert particles coated with a binder or instead of forming a binder layer separately, the inert particles are mixed with the binder to form a coating part. can do.
- the thickness of the mixture layer may be 1 micrometer to 150 micrometers.
- the thickness of the mixture layer is less than 1 micrometer, the content of the binder is so small that it is difficult to fix the inert particles, and if it exceeds 150 micrometers, the material is used more than necessary, which is not only economical, but also inert particles. Since the volume occupied by the coating part is increased, the overall size of the battery is increased, and space efficiency is inferior to the effect.
- the specific gravity of the inert particles is the mixture layer It is preferred to be smaller than the total specific gravity, and in detail, it may be 30% to 90% of the specific gravity of the mixture layer.
- the specific gravity of the inert particles outside the above range is less than 30% of the total specific gravity of the mixture layer, it will float completely in the mixture layer composed of the binder, so that the adhesive strength is lowered. It is not desirable to form a bend to the extent that the cell case is exposed, and even if the bend is formed, the surface area cannot be made large enough to effectively prevent wrinkles.
- the method of lowering the specific gravity of the inert particles can be variously selected, such as appropriately selecting a material constituting the inert particles, and in one specific example, it is also possible to use porous particles containing pores therein.
- the type of the inert particles is not limited, but may be organic particles and / or inorganic particles, and in detail, may be organic particles.
- the organic particles may be made of, for example, a polymer or a silane compound, and examples of the polymer may include PE, PP, PS, PVdF, PTFE, PET, PMMA, and PANdlf, and the silane compound Examples include hexamethyldisilazane (HMDS), trimethylchlorosilane (TMSCL), polydimethylsiloxane (PDMS), dimethyldichlorosilane (DDS), and the like.
- HMDS hexamethyldisilazane
- TMSCL trimethylchlorosilane
- PDMS polydimethylsiloxane
- DDS dimethyldichlorosilane
- the inorganic particles are, for example, SiO 2, Al 2 O 3, MgO, TiO 2, ZrO 2, may be formed of one or a mixture of two or more selected from the group consisting of CaO, Y 2 O 3 and SrO.
- the shape of the inert particles is not limited within a range having a predetermined volume, and may be, for example, spherical, elliptical, or polyhedral, and the size thereof may include the shape of the particles and the like, or the ease of spreading or the like. In consideration of this, in detail, it may be 50 nanometers to 100 micrometers.
- the binder forming the coating part with the inert particles may be the same as that used in the formation of the electrode, for example, polyvinylidene fluoride, polyvinyl alcohol, carboxymethyl Cellulose (CMC), starch, hydroxypropylcellulose, regenerated cellulose, polyvinylpyrrolidone, tetrafluoroethylene, polyethylene, polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, styrene butylene rubber, fluororubber, various copolymers, etc. are mentioned.
- polyvinylidene fluoride polyvinyl alcohol, carboxymethyl Cellulose (CMC), starch, hydroxypropylcellulose, regenerated cellulose, polyvinylpyrrolidone, tetrafluoroethylene, polyethylene, polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, s
- the cell case has a flexible property that can be easily mounted in a device of various designs
- the cell case is a pouch of a laminate sheet including a resin layer and a metal layer in order to reflect the bumps on the outer surface of the electrode assembly to the surface of the cell case It may be a mold case.
- the laminate sheet may be an aluminum laminate sheet, and in detail, a resin outer layer having excellent durability is added to one surface (outer surface) of the metal barrier layer, and a heat-melt resin sealant layer is added to the other surface (inner surface). It may be made of a structure.
- the resin outer layer should have excellent resistance from the external environment, it is necessary to have a predetermined tensile strength and weather resistance.
- PET polyethylene terephthalate
- a stretched nylon film may be preferably used as the polymer resin of the resin outer layer.
- the metal blocking layer may be used in detail aluminum so as to exert a function of improving the strength of the battery case in addition to the function of preventing the inflow or leakage of foreign substances such as gas, moisture.
- a polyolefin-based resin having heat sealability (heat adhesion), low hygroscopicity to suppress invasion of the electrolyte solution, and which is not expanded or eroded by the electrolyte solution is preferably used.
- unstretched polypropylene (CPP) may be used.
- polyolefin-based resins such as polypropylene have low adhesion to metals, so as a method for improving adhesion to the metal barrier layer, in detail, an adhesive layer is further included between the metal layer and the resin sealant layer. And blocking characteristics can be improved.
- the material of the adhesive layer include a urethane-based material, an acryl-based material, a composition containing a thermoplastic elastomer, and the like, but are not limited thereto.
- the electrode assembly embedded in the variable cell case in the state impregnated with the electrolyte is not particularly limited as long as it has a structure of connecting the plurality of electrode tabs to form an anode and a cathode, but the inert particles are formed on the outer surface of the electrode assembly.
- the outer surface is wrapped with a separator or sealing tape.
- a long sheet-like anode and cathode are wound in a state where the separator is interposed therein, a jelly-roll electrode assembly, or It may be a stack / folding electrode assembly having a structure in which a bi-cell or full cells in which a predetermined unit of positive and negative electrodes are stacked with a separator therebetween are wound with a separation film.
- the bi-cell is a stack-type structure in which the same type of electrode is located on both sides of the cell, for example, a cell consisting of a cathode-separator-cathode-separator-anode or cathode-separator-anode-separator-cathode to be.
- the full cell has a stacked structure in which different kinds of electrodes are positioned at both sides of the cell, and is, for example, a cell consisting of an anode, a separator, and a cathode.
- the present invention also provides a method for manufacturing the battery cell
- It provides a method for producing a battery cell comprising a.
- the coating part including the inert particles according to the present invention is formed on the outer surface of the electrode assembly after the electrode assembly is manufactured, the electrode assembly is mounted on an accommodating part of the variable cell case, and then the electrode is pressed by the electrode case. In close contact with the assembly, the curved shape is exposed to the variable cell case, and the surface area of the cell case is larger than the electrode area, so that even if the shape of the battery is deformed in response to devices of various designs, it is not intended. It is possible to minimize the occurrence of wrinkles.
- the present invention also provides a battery module including two or more battery cells, and provides a battery pack including the battery module.
- the present invention also provides a device including the battery pack as a power source, the device is a mobile phone, portable computer, smartphone, tablet PC, smart pad, netbook, LEV (Light Electronic Vehicle), electric vehicle, It may be selected from a hybrid electric vehicle, a plug-in hybrid electric vehicle, and a power storage device.
- the device is a mobile phone, portable computer, smartphone, tablet PC, smart pad, netbook, LEV (Light Electronic Vehicle), electric vehicle, It may be selected from a hybrid electric vehicle, a plug-in hybrid electric vehicle, and a power storage device.
- FIG. 1 and 2 are exploded perspective views of a typical representative pouch type secondary battery
- FIG. 3 is a plan view of a battery cell according to one embodiment of the present invention.
- FIG. 4 is a schematic side view of a battery cell illustrating an internal structure of the battery cell according to FIG. 3;
- FIG. 5 is a schematic side view of a battery cell showing the internal structure of the battery cell according to another embodiment of the present invention.
- FIG. 6 is a schematic side view of a battery cell showing the internal structure of the battery cell according to another embodiment of the present invention.
- FIG. 7 is a schematic side view of a battery cell for showing the internal structure of the battery cell.
- FIG. 3 is a plan view of the battery cell 100 according to an embodiment of the present invention
- Figure 4 is a side view of the battery cell 100 for showing the internal structure of the battery cell 100 of FIG. It is schematically illustrated.
- the battery cell 100 has a structure in which the electrode assembly 110 is embedded in the pouch-type case 120 in the state of being impregnated with the electrolyte, and based on the stacking direction of the electrodes. As a result, a coating part 130 including inert particles 131 is formed on and under the electrode assembly 110.
- the electrode assembly 110 is composed of a positive electrode 111, a negative electrode 112 and a separator 113 interposed between the positive electrode 111 and the negative electrode 112, wherein the outer surface of the electrode assembly 110
- the coating unit 130 including the inert particles 131 is wrapped in the separator 113 to form the upper and lower surfaces of the electrode assembly 110.
- the coating unit 130 including the inert particles 131 formed on the outer surface of the electrode assembly 110 is a form in which the inert particles 131 are scattered on the upper and lower surfaces of the electrode assembly 110. Only inert particles 131 form a coating.
- the inert particles 131 scattered as described above form bends on the outer surface of the electrode assembly 110 regularly or irregularly, and thus, the electrode assembly 110 is mounted on the pouch-type case 120. Then, when the pouch-type case 120 is pressed to closely contact the electrode assembly 110, the bend 150 is exposed to the pouch-type case 120 as it is.
- a binder (not shown) may be further coated on the surface of the inert particles 131 to be properly fixed after being dispersed on the outer surface of the electrode assembly 110.
- 5 and 6 are side views of battery cells 200 and 300 corresponding to FIG. 4 as another embodiment of the present invention.
- the electrode assembly 220 includes an anode 211, a cathode 212, and a separator 213 interposed between the anode 211 and the cathode 212.
- the outer surface of the electrode assembly 210 is wrapped with a separation membrane 213, the coating portion 230 including inert particles 231 on the upper and lower surfaces of the electrode assembly 210 based on the stacking direction of the electrode. Is formed.
- the coating part 230 including the inert particles 231 formed on the outer surface of the electrode assembly 210 may include a binder layer 232 and a binder layer added to the outer surface of the electrode assembly 210. It consists of a structure including the inert particles 231 dispersed in the (232).
- the electrode assembly ( The binder layer 232 is first formed on the outer surface of the 210, and the coating part 230 is formed by scattering the inert particles 231 thereon.
- the thickness of the binder layer 232 is thinner than the size of the inert particles 231, so that the inert particles 231 do not sink or buried inside the binder layer 232 regardless of the specific gravity of the inert particles 231,
- a bumpy bend may be formed on an outer surface of the electrode assembly 210, and accordingly, a bend may be formed on an outer surface of the pouch type case 220.
- the electrode assembly 320 is a separator 311 interposed between the positive electrode 311, the negative electrode 312, and the positive electrode 311 and the negative electrode 312.
- the outer surface of the electrode assembly 310 is wrapped with a separator 313, the coating portion 330 including the inert particles 331 on the upper and lower surfaces of the electrode assembly 310 based on the stacking direction of the electrode ) Is formed.
- the coating part 330 including the inert particles 331 includes a mixture layer including the inert particles 331 and the binder 332.
- the inert particles 331 Is mixed with the binder 332 to form the coating unit 330.
- the specific gravity of the inert particles 331 is smaller than the specific gravity of the entire mixture layer including the binder 332, and thus the inert particles. 331 is located on the surface of the mixture layer.
- FIG. 7 as another embodiment of the present invention, a side view of the battery cell 400 having a difference in the formation range of the coating part 430 including the inert particles 431 is compared with FIG. 5. It is schematically illustrated.
- the coating part 430 including the inert particles 431 may include the binder layer 432 added to the outer surface of the electrode assembly 410 and the inert particles 431 scattered on the binder layer 432.
- 5 is the same as the battery cell 200 of FIG. 5 in that the structure includes the outer surface of the electrode assembly 410 where the coating part 430 including the inert particles 431 is formed. 5 is different from FIG. 5 in that it is partially formed in the central portion based on the upper and lower surfaces of the coating portion.
- the bend is formed only in the pouch-shaped case 420 of the portion corresponding to the position where the coating part 430 including the inert particles 431 is formed.
- the battery cell according to the present invention by forming an uneven curve on the outer surface of the electrode assembly, the curved shape is exposed to the variable cell case as it is to increase the surface area of the cell case relative to the electrode area
- the curved shape is exposed to the variable cell case as it is to increase the surface area of the cell case relative to the electrode area
- the battery cell according to the present invention is a battery cell that can be flexibly deformed according to the shape of the device on which the cell is mounted, and thus includes an electrode assembly having a coating part including inert particles formed on an outer surface thereof.
- an electrode assembly having a coating part including inert particles formed on an outer surface thereof.
Abstract
Description
Claims (25)
- 전극조립체가 전해액에 함침된 상태로 가변적인 셀 케이스에 내장되어 셀이 장착되는 디바이스의 형상에 따라 유연하게 변형될 수 있는 전지셀로서, 불활성 입자를 포함하는 코팅부가 전극조립체를 이루는 외면들 중 적어도 하나의 면에 형성되어 있는 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자를 포함하는 코팅부는 전극의 적층 방향을 기준으로 전극조립체의 상면 및/또는 하면에 형성되어 있는 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자를 포함하는 코팅부는 전극조립체를 이루는 외면들 중 적어도 하나의 면에 부분적으로 또는 전체적으로 형성되어 있는 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자를 포함하는 코팅부는 불활성 입자들이 전극조립체의 외면에 산포(scattering)되어 있는 불활성 입자 층인 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자를 포함하는 코팅부는 전극조립체의 외면에 부가된 바인더 층과 상기 바인더 층에 산포된 불활성 입자들을 포함하는 것을 특징으로 하는 전지셀.
- 제 5 항에 있어서, 상기 바인더 층의 두께는 불활성 입자의 크기보다 얇은 것을 특징으로 하는 전지셀.
- 제 6 항에 있어서, 상기 바인더 층의 두께는 불활성 입자의 크기의 10 내지 95% 범위인 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자를 포함하는 코팅부는 불활성 입자들과 바인더를 포함하는 혼합물 층인 것을 특징으로 하는 전지셀.
- 제 8 항에 있어서, 상기 혼합물 층의 두께는 1 마이크로미터 내지 150 마이크로미터인 것을 특징으로 하는 전지셀.
- 제 8 항에 있어서, 상기 불활성 입자의 비중은 혼합물 층 전체 비중의 30% 내지 90%인 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자는 내부에 공극을 포함하고 있는 다공성 입자인 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자는 유기 입자 및/또는 무기 입자인 것을 특징으로 하는 전지셀.
- 제 12 항에 있어서, 상기 불활성 입자는 유기 입자인 것을 특징으로 하는 전지셀.
- 제 12 항 또는 제 13 항에 있어서, 상기 유기 입자는 고분자 또는 실란계 화합물로 이루어진 것을 특징으로 하는 전지셀.
- 제 12 항에 있어서, 상기 무기 입자는 SiO2, Al2O3, MgO, TiO2, ZrO2, CaO, Y2O3 및 SrO로 이루어진 군에서 선택되는 하나 또는 둘 이상의 혼합물인 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자는 구형, 타원형, 또는 다면체 형상으로 이루어진 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 불활성 입자의 크기는 50 나노미터 내지 100 마이크로미터인 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 셀 케이스는 수지층과 금속층을 포함하는 라미네이트 시트의 파우치형 케이스인 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 셀 케이스는 전극조립체의 외면에 형성된 코팅부의 불활성 입자들에 의해 굴곡 형상을 갖는 것을 특징으로 하는 전지셀.
- 제 1 항에 있어서, 상기 전극조립체는 긴 시트형의 양극들과 음극들을 분리막이 개재된 상태에서 권취한 구조의 젤리-롤형 전극조립체, 또는 소정 단위의 양극과 음극들을 분리막을 개재한 상태로 적층한 바이셀(Bi-cell) 또는 풀셀(Full cell)들을 분리필름으로 권취한 구조의 스택/폴딩형 전극조립체인 것을 특징으로 하는 전지셀.
- 제 1 항에 따른 전지셀을 제조하는 방법으로서,(a) 양극, 음극, 및 양극과 음극 사이에 개재되는 분리막을 포함하는 전극조립체를 준비하는 과정;(b) 상기 전극조립체를 이루는 외면들 중의 적어도 하나의 면에 불활성 입자를 포함하는 코팅부를 형성하는 과정; 및(c) 상기 코팅부가 형성된 전극조립체를 가변적인 셀 케이스의 수납부에 장착한 후 셀 케이스를 가압하여 전극조립체에 밀착시키는 과정;을 포함하는 것을 특징으로 하는 전지셀의 제조방법.
- 제 1 항에 따른 전지셀을 둘 이상 포함하고 있는 것을 특징으로 하는 전지모듈.
- 제 22 항에 따른 전지모듈을 포함하는 전지팩.
- 제 23 항에 따른 전지팩을 전원으로 포함하고 있는 것을 특징으로 하는 디바이스.
- 제 24 항에 있어서, 상기 디바이스는 휴대폰, 휴대용 컴퓨터, 스마트폰, 태플릿 PC, 스마트 패드, 넷북, LEV(Light Electronic Vehicle), 전기자동차, 하이브리드 전기자동차, 플러그-인 하이브리드 전기자동차, 및 전력저장장치로 이루어진 군에서 선택되는 것을 특징으로 하는 디바이스.
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US15/108,043 US10050301B2 (en) | 2014-01-13 | 2015-01-05 | Battery cell including electrode assembly coated with inert particles |
JP2016542703A JP6457534B2 (ja) | 2014-01-13 | 2015-01-05 | 不活性粒子がコーティングされている電極組立体を含む電池セル |
CN201580003366.7A CN105874639B (zh) | 2014-01-13 | 2015-01-05 | 包括涂覆有惰性颗粒的电极组件的电池单体 |
EP15735056.2A EP3096386B1 (en) | 2014-01-13 | 2015-01-05 | Battery cell comprising electrode assembly coated with inert particles |
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KR1020140003843A KR101590997B1 (ko) | 2014-01-13 | 2014-01-13 | 불활성 입자가 코팅되어 있는 전극조립체를 포함하는 전지셀 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016136508A (ja) * | 2014-05-29 | 2016-07-28 | 株式会社半導体エネルギー研究所 | 二次電池及び電子機器 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101786908B1 (ko) * | 2014-09-17 | 2017-10-18 | 주식회사 엘지화학 | 주름 방지용 패턴이 형성되어 있는 전지 케이스 |
US10115938B2 (en) | 2014-09-17 | 2018-10-30 | Lg Chem, Ltd. | Battery case having anti-wrinkle pattern |
CN111081905B (zh) * | 2018-10-18 | 2023-09-01 | 宁德新能源科技有限公司 | 一种包装袋以及一种电池 |
JP7154270B2 (ja) * | 2020-11-05 | 2022-10-17 | プライムプラネットエナジー&ソリューションズ株式会社 | 電池およびその製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040054201A (ko) * | 2002-12-18 | 2004-06-25 | 삼성에스디아이 주식회사 | 고용량 파우치형 이차전지 |
US20050130044A1 (en) * | 2000-12-27 | 2005-06-16 | Mitsubishi Chemical Corporation | Lithium secondary cell |
KR20100025968A (ko) * | 2008-08-28 | 2010-03-10 | 주식회사 엘지화학 | 안전성이 향상된 전지케이스 및 이를 사용한 이차전지 |
JP2011210736A (ja) * | 2000-09-26 | 2011-10-20 | Mitsubishi Chemicals Corp | リチウム二次電池及び負極 |
KR20130035129A (ko) * | 2011-09-29 | 2013-04-08 | 현대자동차주식회사 | 상전이 물질을 충진한 배터리 패키지 및 이를 이용한 배터리 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100515572B1 (ko) | 2000-02-08 | 2005-09-20 | 주식회사 엘지화학 | 중첩 전기화학 셀 및 그의 제조 방법 |
JP3745593B2 (ja) | 2000-06-29 | 2006-02-15 | 三菱電機株式会社 | 電池およびその製造方法 |
JP2003132936A (ja) * | 2001-10-24 | 2003-05-09 | Mitsubishi Electric Corp | 2次電池およびその製造方法 |
JP3730981B2 (ja) | 2003-10-01 | 2006-01-05 | Necラミリオンエナジー株式会社 | フィルム外装電池および組電池 |
WO2005045983A1 (ja) * | 2003-11-05 | 2005-05-19 | Gs Yuasa Corporation | 電池 |
JP4661124B2 (ja) * | 2004-08-04 | 2011-03-30 | トヨタ自動車株式会社 | シート材型電池、シート材型電池を組み合わせた組電池及びシート材型電池の製造方法 |
JP4805265B2 (ja) * | 2004-08-06 | 2011-11-02 | エルジー・ケム・リミテッド | 内部構造に相変化材料含有カプセルを含むバッテリーシステム |
US20080206636A1 (en) * | 2007-02-21 | 2008-08-28 | Riken Technos Corporation | Lithium secondary battery with a laminate housing material |
KR100966024B1 (ko) * | 2007-04-24 | 2010-06-24 | 주식회사 엘지화학 | 이종의 세퍼레이터를 구비한 전기화학소자 |
BRPI0811870A2 (pt) | 2007-05-16 | 2014-10-21 | Mat Malta Advanced Technologies Ltd | Tratamento e prevenção de influenza |
KR101136799B1 (ko) | 2008-04-18 | 2012-04-19 | 주식회사 엘지화학 | 슬림형의 전지팩 |
KR101143300B1 (ko) | 2008-12-19 | 2012-05-08 | 주식회사 엘지화학 | 전지케이스용 라미네이트 시트 및 이를 포함하고 있는 리튬이차전지 |
JP5163688B2 (ja) * | 2010-05-10 | 2013-03-13 | 株式会社Gsユアサ | 電池及びその製造方法 |
WO2012114162A1 (en) * | 2011-02-26 | 2012-08-30 | Etv Energy Ltd. | Pouch cell comprising an empty -volume defining component |
KR20130094638A (ko) * | 2012-02-16 | 2013-08-26 | 삼성에스디아이 주식회사 | 파우치형 배터리 |
JP5761576B2 (ja) * | 2012-04-17 | 2015-08-12 | 株式会社デンソー | 積層型電池および積層電極体の製造方法 |
US10090492B2 (en) * | 2014-01-13 | 2018-10-02 | Lg Chem, Ltd. | Battery cell with safety improved using inert particles |
-
2014
- 2014-01-13 KR KR1020140003843A patent/KR101590997B1/ko active IP Right Grant
-
2015
- 2015-01-05 CN CN201580003366.7A patent/CN105874639B/zh active Active
- 2015-01-05 JP JP2016542703A patent/JP6457534B2/ja active Active
- 2015-01-05 EP EP15735056.2A patent/EP3096386B1/en active Active
- 2015-01-05 WO PCT/KR2015/000057 patent/WO2015105303A1/ko active Application Filing
- 2015-01-05 US US15/108,043 patent/US10050301B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011210736A (ja) * | 2000-09-26 | 2011-10-20 | Mitsubishi Chemicals Corp | リチウム二次電池及び負極 |
US20050130044A1 (en) * | 2000-12-27 | 2005-06-16 | Mitsubishi Chemical Corporation | Lithium secondary cell |
KR20040054201A (ko) * | 2002-12-18 | 2004-06-25 | 삼성에스디아이 주식회사 | 고용량 파우치형 이차전지 |
KR20100025968A (ko) * | 2008-08-28 | 2010-03-10 | 주식회사 엘지화학 | 안전성이 향상된 전지케이스 및 이를 사용한 이차전지 |
KR20130035129A (ko) * | 2011-09-29 | 2013-04-08 | 현대자동차주식회사 | 상전이 물질을 충진한 배터리 패키지 및 이를 이용한 배터리 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3096386A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016136508A (ja) * | 2014-05-29 | 2016-07-28 | 株式会社半導体エネルギー研究所 | 二次電池及び電子機器 |
CN106415877A (zh) * | 2014-05-29 | 2017-02-15 | 株式会社半导体能源研究所 | 二次电池以及电子设备 |
US10714784B2 (en) | 2014-05-29 | 2020-07-14 | Semiconductor Energy Laboratory Co., Ltd. | Secondary battery and electronic device |
US11444311B2 (en) | 2014-05-29 | 2022-09-13 | Semiconductor Energy Laboratory Co., Ltd. | Secondary battery and electronic device |
US11949061B2 (en) | 2014-05-29 | 2024-04-02 | Semiconductor Energy Laboratory Co., Ltd. | Secondary battery and electronic device |
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KR20150084149A (ko) | 2015-07-22 |
US20160329595A1 (en) | 2016-11-10 |
JP2017503319A (ja) | 2017-01-26 |
EP3096386B1 (en) | 2019-07-31 |
CN105874639B (zh) | 2018-09-07 |
CN105874639A (zh) | 2016-08-17 |
EP3096386A4 (en) | 2017-06-14 |
KR101590997B1 (ko) | 2016-02-02 |
US10050301B2 (en) | 2018-08-14 |
EP3096386A1 (en) | 2016-11-23 |
JP6457534B2 (ja) | 2019-01-23 |
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