WO2012074212A2 - 전지셀의 제조방법 및 이를 이용하여 생산되는 전지셀 - Google Patents
전지셀의 제조방법 및 이를 이용하여 생산되는 전지셀 Download PDFInfo
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- WO2012074212A2 WO2012074212A2 PCT/KR2011/008468 KR2011008468W WO2012074212A2 WO 2012074212 A2 WO2012074212 A2 WO 2012074212A2 KR 2011008468 W KR2011008468 W KR 2011008468W WO 2012074212 A2 WO2012074212 A2 WO 2012074212A2
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- battery cell
- battery case
- battery
- sealing
- manufacturing
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- 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
- H01M10/049—Processes for forming or storing electrodes in the battery container
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- 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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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- 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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- H01M10/04—Construction or manufacture in general
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
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- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
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- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
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- 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
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Definitions
- the present invention relates to a method for manufacturing a battery cell, and more particularly, a method of manufacturing a battery cell in which an electrode assembly and an electrolyte solution are built in a battery case of a laminate sheet including a resin layer and a metal layer, comprising: (a) a battery case Heat-sealing the remaining portions except for one end of the outer circumferential surface of the battery case in a state where the electrode assembly is mounted on the sealing; (b) injecting electrolyte through the end portion of the unsealed state and sealing the end portion by heat fusion; (c) activating a battery cell by performing charging and discharging; (d) drilling a through hole communicating with the inside of the battery case to the unsealed portion inside the end; And (e) removing the gas and the surplus electrolyte generated during the activation process by applying a vacuum while pulling the upper and lower surfaces of the battery case in opposite directions from each other in the unsealed portion. It is about.
- lithium secondary batteries such as lithium ion batteries and lithium ion polymer batteries is high.
- secondary batteries are classified according to the structure of the electrode assembly having a cathode / separation membrane / cathode structure.
- a jelly having a structure in which long sheet-shaped anodes and cathodes are wound with a separator interposed therebetween -Roll (electrode) electrode assembly, a stack (stacked type) electrode assembly in which a plurality of positive and negative electrodes cut in units of a predetermined size are sequentially stacked with a separator, and the positive and negative electrodes of a predetermined unit are interposed through a separator
- a stacked / folding electrode assembly having a structure in which a bi-cell or full cells stacked in a state are wound.
- a pouch-type battery having a structure in which a stack type or a stack / fold type electrode assembly is incorporated into a pouch type battery case of an aluminum laminate sheet has attracted much attention due to its low manufacturing cost, small weight, and easy shape deformation. Its usage is also gradually increasing.
- the pouch-type battery 10 includes an electrode assembly 30, electrode tabs 40 and 50 extending from the electrode assembly 30, and electrode leads welded to the electrode tabs 40 and 50. And a battery case 20 accommodating the electrodes 60 and 70 and the electrode assembly 30.
- the electrode assembly 30 is a power generator in which a positive electrode and a negative electrode are sequentially stacked in a state where a separator is interposed therebetween, and has a stack type or a stack / fold type structure.
- the electrode tabs 40, 50 extend from each pole plate of the electrode assembly 30, and the electrode leads 60, 70 are welded, for example, with a plurality of electrode tabs 40, 50 extending from each pole plate. Each is electrically connected to each other, and part of the battery case 20 is exposed to the outside.
- an insulating film 80 is attached to a portion of the upper and lower surfaces of the electrode leads 60 and 70 in order to increase the sealing degree with the battery case 20 and to secure an electrical insulating state.
- the battery case 20 provides a space for accommodating the electrode assembly 30 and has a pouch shape as a whole.
- the plurality of positive electrode tabs 40 and the plurality of negative electrode tabs 50 may be coupled together to the electrode leads 60 and 70.
- the upper end is spaced apart from the electrode assembly 30.
- 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.
- an object of the present invention after activating the battery cell by charging and discharging, the through-holes communicating with the inside of the battery case is perforated in the unsealed portion inside the end, and the upper surface of the battery case and the unsealed portion By applying a vacuum while pulling the lower surface in the opposite direction to each other, to provide a battery cell manufacturing method improved productivity and quality at the same time by quickly and completely remove the gas and excess electrolyte generated during the activation process.
- Still another object of the present invention is to provide a battery cell manufactured in an easy process while ensuring productivity and quality as described above.
- a battery cell manufacturing method for achieving the above object, as a method of manufacturing a battery cell in which the electrode assembly and the electrolyte solution is built in the battery case of the laminate sheet comprising a resin layer and a metal layer,
- the gas and the surplus electrolyte can be completely removed by vacuum, the safety and life characteristics of the battery cell can be improved by the quality of the battery cell, that is, high heat fusion bonding force of the sealing part.
- the lithium secondary battery uses, for example, a lithium transition metal oxide such as LiCoO 2 as a positive electrode active material and a carbon material as a negative electrode active material, a polyolefin-based porous separator is interposed between the negative electrode and the positive electrode, and LiPF 6 and the like. It is prepared by putting a non-aqueous electrolyte solution containing a lithium salt. During charging, lithium ions of the positive electrode active material are released and inserted into the carbon layer of the negative electrode, and during discharge, lithium ions of the negative electrode carbon layer are released and inserted into the positive electrode active material, wherein the non-aqueous electrolyte solution is lithium ions between the negative electrode and the positive electrode. It acts as a medium for moving the.
- a lithium secondary battery should basically be stable in the operating voltage range of the battery and have a performance capable of transferring ions at a sufficiently high speed.
- step (c) gas is generated as the electrolyte is decomposed on the surface of the negative electrode active material during continuous charge and discharge, and an SEI film is formed on the surface of the negative electrode active material during initial charge and discharge to suppress additional gas generation. Therefore, the battery cell activation process of step (c) is necessary for the formation of such an SEI film, and it is necessary before the final battery cell is manufactured.
- the laminate sheet according to the present invention may preferably consist of a laminated structure of an outer resin layer, an air and moisture barrier metal layer, and a heat sealable inner resin layer.
- the polymer resin of the outer coating layer may include polyethylene naphthalate (PEN), polyethylene terephthalate (PET) or stretch nylon having excellent tensile strength and weather resistance.
- PEN polyethylene naphthalate
- PET polyethylene terephthalate
- stretch nylon having excellent tensile strength and weather resistance.
- the outer coating layer may be made of polyethylene naphthalate (PEN) and / or may have a structure in which a polyethylene terephthalate (PET) layer is provided on the outer surface of the outer coating layer.
- PEN polyethylene naphthalate
- PET polyethylene terephthalate
- the polyethylene naphthalate (PEN) is preferred for use as an outer coating layer because it has excellent tensile strength and weather resistance even at a thin thickness compared to polyethylene terephthalate (PET).
- a polymer resin having heat sealability (heat adhesiveness), low hygroscopicity to the electrolyte solution to suppress the invasion of the electrolyte solution, and not expanded or eroded by the electrolyte solution may be used. More preferably, it may be made of an unstretched polypropylene film (CPP).
- the laminate sheet according to the present invention has a thickness of 5 to 40 ⁇ m, the barrier layer has a thickness of 20 to 150 ⁇ m, the thickness of the inner sealant layer is 10 to 50 ⁇ m It may be made of a structure. If the thickness of each layer of the laminate sheet is too thin, it is difficult to expect the blocking function and strength improvement for the material, on the contrary, too thick is not preferable because the workability is poor and causes an increase in the thickness of the sheet.
- the electrode assembly is not particularly limited as long as it is a structure that connects a plurality of electrode tabs to form an anode and a cathode, and preferably includes a wound structure, a stacked structure, and a stack / folding structure. Details of the electrode assembly of the stack / foldable structure are disclosed in Korean Patent Application Publication Nos. 2001-0082058, 2001-0082059, and 2001-0082060, which are described in the context of the present invention. Incorporated by reference.
- the battery case may have various forms, and preferably has a quadrangular structure in plan view.
- one end portion may be one side edge of the battery case.
- the width of one corner is 20% to 300% larger than the width of the remaining corners, it can be configured to seal the end of the one corner in the heat fusion process for activation.
- the width of one edge is less than 20% of the width of the other edges, the desired gas cannot be sufficiently collected in the space of one edge, and if it exceeds 300%, the amount of wasted edge is increased, thereby increasing the manufacturing cost. It is not desirable economically.
- the suction device by applying a vacuum while pulling the upper and lower surfaces of the battery case in a direction opposite to each other by the suction device, the gas generated inside the battery cell to the outside by the suction device is increased suction force by the vacuum It can be easily discharged.
- the suction device vacuum-adsorbs the upper surface and the lower surface of the battery case, opens a space between the upper surface and the lower surface to secure a discharge passage, and then vacuum- suctions to discharge the gas and the electrolyte to the outside.
- the suction device may include a first suction pad in contact with an upper surface of the battery case and a second suction pad in contact with a lower surface of the battery case.
- the first suction pad and the second suction pad are in close contact with the outer surface of the battery case, and a hollow part communicating with a through hole connected to the close contact part and perforated at the unsealed part of the battery case and applying a vacuum. It may be made of a structure containing.
- the present invention may also include means for accelerating activation of the battery cell so that the gas can be quickly collected at the unsealed site.
- the configuration may be configured to apply heat to the battery cell to increase the fluidity by increasing the temperature of the electrolyte in at least one of the processes (c) to (e).
- the heat may affect the charging and discharging of the battery cell, preferably, the configuration of applying heat to the battery cell Is included in one of the processes (d) and (e) above.
- the temperature for applying heat may be, for example, approximately 40 degrees to 80 degrees Celsius. If the temperature is less than 40 degrees Celsius, the activation of the battery cell by the desired charging and discharging cannot be accelerated, and if it exceeds 80 degrees Celsius, the activation of the battery cell is so active that the battery cell may explode, which is not preferable.
- it may include a configuration having an ultrasonic wave in the battery cell to increase the fluidity of the electrolyte in at least one of the processes (c) to (e).
- the configuration having an ultrasonic wave in the battery cell as described above is included in the step (c) of activating the battery cell, since the charge and discharge of the battery cell may be affected, the configuration having the ultrasonic wave in the battery cell May be included in one of the processes (d) and (e).
- the frequency of the ultrasonic waves may be in the range of approximately 15 kHz to 100 kHz, for example.
- the method for manufacturing a battery cell according to the present invention may further include a process of cutting the remaining outer portion after heat sealing the inner side of the unsealed portion after sealing (e).
- the present invention also provides a battery cell, characterized in that produced by the above method.
- the battery cell may be preferably a lithium secondary battery.
- the lithium secondary battery is composed of a positive electrode, a negative electrode, a separator and a lithium-containing non-aqueous electrolyte.
- the positive electrode may be prepared by, for example, applying a slurry made by mixing a positive electrode mixture with a solvent such as NMP onto a negative electrode current collector, followed by drying and rolling.
- the positive electrode mixture may optionally include a conductive material, a binder, a filler, etc. in addition to the positive electrode active material.
- the cathode active material is a material capable of causing an electrochemical reaction, and is a lithium transition metal oxide, and includes two or more transition metals, for example, lithium cobalt oxide (LiCoO 2 ) and lithium substituted with one or more transition metals.
- LiCoO 2 lithium cobalt oxide
- the conductive material is typically added in an amount of 1 to 30 wt% based on the total weight of the mixture including the positive electrode active material.
- a conductive material is not particularly limited as long as it has conductivity without causing chemical change in the battery, and examples thereof include graphite such as natural graphite and artificial graphite; Carbon blacks such as carbon black, acetylene black, Ketjen black, channel black, furnace black, lamp black, and summer black; Conductive fibers such as carbon fibers and metal fibers; Metal powders such as carbon fluoride powder, aluminum powder and nickel powder; Conductive whiskeys such as zinc oxide and potassium titanate; Conductive metal oxides such as titanium oxide; Conductive materials such as polyphenylene derivatives and the like can be used.
- the binder is a component that assists the bonding of the active material and the conductive material to the current collector, and is generally added in an amount of 1 to 30 wt% based on the total weight of the mixture including the positive electrode active material.
- binders include polyvinylidene fluoride, polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, hydroxypropyl cellulose, regenerated cellulose, polyvinylpyrrolidone, tetrafluoroethylene, polyethylene , Polypropylene, ethylene-propylene-diene terpolymer (EPDM), sulfonated EPDM, styrene butylene rubber, fluorine rubber, various copolymers and the like.
- the filler is optionally used as a component for inhibiting the expansion of the electrode, and is not particularly limited as long as it is a fibrous material without causing chemical change in the battery.
- the filler include olefinic polymers such as polyethylene and polypropylene; Fibrous materials, such as glass fiber and carbon fiber, are used.
- the positive electrode current collector is generally made to a thickness of 3 to 500 ⁇ m. Such a positive electrode current collector is not particularly limited as long as it has conductivity without causing chemical change in the battery.
- the positive electrode current collector may be formed on a surface of stainless steel, aluminum, nickel, titanium, calcined carbon, or aluminum or stainless steel. Surface-treated with carbon, nickel, titanium, silver, and the like can be used.
- the current collector may form fine irregularities on its surface to increase the adhesion of the positive electrode active material, and may be in various forms such as a film, a sheet, a foil, a net, a porous body, a foam, and a nonwoven fabric.
- the negative electrode is prepared by, for example, applying a negative electrode mixture containing a negative electrode active material on a negative electrode current collector and then drying the negative electrode mixture.
- the negative electrode mixture may include, as necessary, a conductive material, a binder, a filler, and the like. The components of may be included.
- the negative electrode active material examples include carbon and graphite materials such as natural graphite, artificial graphite, expanded graphite, carbon fiber, non-graphitizable carbon, carbon black, carbon nanotube, fullerene, and activated carbon; Metals such as Al, Si, Sn, Ag, Bi, Mg, Zn, In, Ge, Pb, Pd, Pt, Ti which can be alloyed with lithium, and compounds containing these elements; Complexes of metals and compounds thereof with carbon and graphite materials; Lithium-containing nitrides; and the like.
- carbon-based active materials, silicon-based active materials, tin-based active materials, or silicon-carbon-based active materials are more preferable, and these may be used alone or in combination of two or more.
- the negative electrode current collector is generally made to a thickness of 3 to 500 ⁇ m.
- a negative electrode current collector is not particularly limited as long as it has high conductivity without causing chemical change in the battery.
- copper, stainless steel, aluminum, nickel, titanium, calcined carbon, copper or stainless steel Surface-treated with carbon, nickel, titanium, silver and the like on the surface, aluminum-cadmium alloy and the like can be used.
- fine concavities and convexities may be formed on the surface to enhance the bonding strength of the negative electrode active material, and may be used in various forms such as a film, a sheet, a foil, a net, a porous body, a foam, and a nonwoven fabric.
- the separator is interposed between the anode and the cathode, and an insulating thin film having high ion permeability and mechanical strength is used.
- the pore diameter of the separator is generally from 0.01 to 10 ⁇ m ⁇ m, thickness is generally 5 ⁇ 300 ⁇ m.
- a separator for example, olefin polymers such as chemical resistance and hydrophobic polypropylene; Sheets or non-woven fabrics made of glass fibers or polyethylene are used.
- a solid electrolyte such as a polymer
- the solid electrolyte may also serve as a separator.
- the lithium salt-containing non-aqueous electrolyte solution consists of an electrolyte solution and a lithium salt, and a non-aqueous organic solvent, an organic solid electrolyte, an inorganic solid electrolyte, and the like are used as the electrolyte solution.
- non-aqueous organic solvent examples include N-methyl-2-pyrrolidinone, propylene carbonate, ethylene carbonate, butylene carbonate, dimethyl carbonate, diethyl carbonate, and gamma Butyl lactone, 1,2-dimethoxy ethane, tetrahydroxy franc, 2-methyl tetrahydrofuran, dimethyl sulfoxide, 1,3-dioxorone, formamide, dimethylformamide, dioxolon , Acetonitrile, nitromethane, methyl formate, methyl acetate, phosphate triester, trimethoxy methane, dioxorone derivatives, sulfolane, methyl sulfolane, 1,3-dimethyl-2-imidazolidinone, propylene carbo Aprotic organic solvents such as nate derivatives, tetrahydrofuran derivatives, ethers, methyl pyroionate and ethyl propionate can be
- organic solid electrolyte examples include polyethylene derivatives, polyethylene oxide derivatives, polypropylene oxide derivatives, phosphate ester polymers, polyedgetion lysine, polyester sulfides, polyvinyl alcohols, polyvinylidene fluorides, Polymerizers containing ionic dissociating groups and the like can be used.
- Examples of the inorganic solid electrolyte include Li 3 N, LiI, Li 5 NI 2 , Li 3 N-LiI-LiOH, LiSiO 4 , LiSiO 4 -LiI-LiOH, Li 2 SiS 3 , Li 4 SiO 4 , Nitrides, halides, sulfates and the like of Li, such as Li 4 SiO 4 -LiI-LiOH, Li 3 PO 4 -Li 2 S-SiS 2 , and the like, may be used.
- the lithium salt is a material that is readily soluble in the non-aqueous electrolyte, for example, 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, lower aliphatic carboxylic acid lithium, lithium tetraphenyl borate and imide have.
- 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, lower aliphatic carboxylic acid lithium, lithium tetraphenyl borate and imide have.
- pyridine triethyl phosphite, triethanolamine, cyclic ether, ethylene diamine, n-glyme, hexaphosphate triamide, nitro Benzene derivatives, sulfur, quinone imine dyes, N-substituted oxazolidinones, N, N-substituted imidazolidines, ethylene glycol dialkyl ethers, ammonium salts, pyrroles, 2-methoxy ethanol, aluminum trichloride and the like may be added. .
- halogen-containing solvents such as carbon tetrachloride and ethylene trifluoride may be further included, and carbon dioxide gas may be further included to improve high temperature storage characteristics.
- the secondary battery as described above may not only be used in a battery cell used as a power source for a small device, but also includes a plurality of battery cells used as a power source for medium and large devices requiring high temperature stability, long cycle characteristics, and high rate characteristics. It can also be preferably used as a unit cell in the battery pack.
- the medium-to-large device include a power tool driven by a battery-based motor; Electric vehicles including electric vehicles (EVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and the like; Electric motorcycles including electric bicycles (E-bikes) and electric scooters (E--ooters); Electric golf carts, and the like, but are not limited thereto.
- Electric vehicles including electric vehicles (EVs), hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and the like
- Electric motorcycles including electric bicycles (E-bikes) and electric scooters (E--ooters); Electric golf carts, and the like, but are not limited thereto.
- the present invention also provides a device used in the process of removing the gas and excess electrolyte generated during the activation of the battery cell manufacturing method.
- a holder mounted to the battery cell such that an end portion of the battery case in which the through hole is perforated protrudes in one direction;
- a pair of sealing blocks positioned outside the holder for heat-sealing the ends of the battery case
- a pair of suction pads which removes gas and excess electrolyte generated in the activation process by applying a vacuum while pulling the upper and lower surfaces of the battery case in opposite directions at the end of the battery case in which the through holes are perforated;
- It may be configured to include a structure.
- the apparatus includes a pair of suction pads for applying a vacuum while pulling the upper and lower surfaces of the battery case in opposite directions at the end of the battery case in which the through holes are perforated. The gas and excess electrolyte can be removed quickly and completely.
- the apparatus can press the battery cell strongly with the press block to further accelerate the discharge of gas and excess electrolyte.
- the holder may be a built-in heater for applying heat to the battery cell.
- the apparatus can greatly shorten the gas removal time.
- the holder may incorporate an ultrasonic excitation with an ultrasonic wave in the battery cell.
- the apparatus can greatly shorten the gas removal time.
- FIG. 1 is an exploded perspective view of a general structure of a conventional pouch type battery
- FIGS. 2 to 7 are sequential schematic views of a battery cell manufacturing method according to an embodiment of the present invention.
- FIGS. 8 to 10 are cross-sectional schematic diagrams of a gas removal apparatus according to another embodiment of the present invention.
- FIG. 11 is an enlarged schematic view of the suction pad of FIG. 8.
- FIG. 11 is an enlarged schematic view of the suction pad of FIG. 8.
- FIGS. 2 to 7 are schematic views of a battery cell manufacturing method according to an embodiment of the present invention.
- the electrode assembly 110 is mounted on the accommodating part 120 of the battery case 130, and then the battery case 130 is folded in half.
- the electrode assembly 110 to which the electrode terminals 112 and 114 are connected is mounted in the battery case 130 made of a laminate sheet on which one side 120 is formed.
- the three sides, including the upper side including the electrode terminals 112 and 114, the sealing portion 140 is formed on the three sides by thermal compression, the remaining side in the state of the unsealed portion 150 Remains. After injecting the electrolyte through such an unsealed portion 150, as shown in FIG. 4, the end 162 of one edge of the unsealed portion 150 is heat-sealed and charged and discharged to activate the battery cell 100. Let's do it.
- Gas and excess electrolyte generated during the activation process is collected in the unsealed portion 150 is collected.
- the top surface of the battery case 130 is disposed at the unsealed portion 150.
- the vacuum is applied while the upper and lower surfaces are pulled in opposite directions to remove the gas and the surplus electrolyte generated during the activation process.
- the battery case 130 has a rectangular structure in plan view, and the width W of one edge 150 is 200% larger than the width w of the remaining edges.
- FIGS. 8 to 10 are cross-sectional schematic diagrams of a gas removal apparatus according to another embodiment of the present invention.
- the gas removing apparatus 200 of FIG. 8 is used in a process of removing gas and excess electrolyte generated in an activation process of a battery cell, and includes a holder 210 and a pair of sealing blocks ( 220, a suction device 230, and a vacuum suction line 232 connected to the suction device 230.
- the holder 210 mounts the battery cell 100 such that the end 150 of the battery case 130 through which the through hole 163 is drilled protrudes in one direction, and the sealing block 220 is the battery case 130.
- the outer end of the holder 150 is positioned outside the holder 210 to heat seal the seal.
- the suction device 230 applies a vacuum while pulling the upper and lower surfaces of the battery case in opposite directions from the end 150 of the battery case 130 through which the through hole 163 is perforated, thereby generating an activation process. Remove gas and excess electrolyte.
- a press block 240 is positioned on the top of the battery cell 100 to press the battery cell 100 mounted on the holder 210 from the top, and the battery cell 100. Since the heater 250 for increasing the kinetic energy of the gas by applying heat to the same is the same as that of the gas removing apparatus 200 of FIG. 8 except that the heater 250 is mounted inside the holder 210, detailed description thereof will be omitted. do. However, the press block 240 may also be included in the apparatus 200 of FIG. 8 and the apparatus 200b of FIG. 10.
- the gas removing apparatus 200b of FIG. 10 has an ultrasonic wave excitation device 260 for increasing the kinetic energy of the gas with an ultrasonic wave in the battery cell 100, except that the gas removal device 200 b is mounted inside the holder 210. Since the removal apparatus 200 of FIG. 8 is the same, a detailed description thereof will be omitted.
- FIG. 11 is an enlarged schematic view of the suction device of FIG. 8.
- the suction device 230 includes a first suction pad 230a in contact with the top surface of the battery case 130 and a second suction pad 230b in contact with the bottom surface.
- first suction pad 230a and the second suction pad 230b are connected to the close contact portion 234 and the close contact portion 234 contacting the outer surface of the battery case 130, respectively. It is made of a structure including a hollow portion 236 in communication with the through-hole 163 that is punched in the unsealed portion 150 to apply a vacuum.
- the through-hole communicating with the inside of the battery case is perforated in the unsealed portion inside the end, Since the upper and lower surfaces of the battery case are pulled apart from each other in the sealing area to apply a vacuum, the gas and the surplus electrolyte generated during the activation process can be removed quickly and completely.
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Abstract
Description
Claims (16)
- 수지층과 금속층을 포함하는 라미네이트 시트의 전지케이스에 전극조립체 및 전해액이 내장되어 있는 전지셀을 제조하는 방법으로서,(a) 전지케이스에 전극조립체를 장착한 상태에서 전지케이스의 외주면 중 일측 단부를 제외한 나머지 부위들을 열융착시켜 실링하는 과정;(b) 미실링 상태의 상기 단부를 통해 전해액을 주입한 후 상기 단부를 열융착에 의해 실링하는 과정;(c) 충전과 방전을 수행하여 전지셀을 활성화시키는 과정;(d) 전지케이스의 내부와 통하는 관통구를 상기 단부 내측의 미실링 부위에 천공하는 과정; 및(e) 상기 미실링 부위에서 전지케이스의 상면과 하면을 서로 대향방향으로 잡아당겨 벌리면서 진공을 인가하여, 상기 활성화 과정에서 발생한 가스와 잉여 전해액을 제거하는 과정;을 포함하는 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항에 있어서, 상기 라미네이트 시트는 외부 수지층, 공기 및 수분 차단성 금속층, 및 열융착성 내부 수지층의 적층 구조로 이루어진 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항에 있어서, 상기 전극조립체는 권취형 구조, 스택형 구조, 또는 스택/폴딩형 구조로 이루어진 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항에 있어서, 상기 전지케이스는 평면상으로 사각형 구조로 이루어져 있고, 상기 일측 단부는 전지케이스의 일측 모서리인 것을 특징으로 하는 전지셀 제조방법.
- 제 4 항에 있어서, 상기 일측 모서리의 폭은 나머지 모서리들의 폭보다 20% ~ 300%가 크고, 활성화를 위한 열융착 과정에서 상기 일측 모서리의 끝단을 실링하는 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항에 있어서, 상기 전지케이스의 상면과 하면을 흡입 장치에 의해 서로 대향 방향으로 잡아당기면서 진공을 인가하는 것을 특징으로 하는 전지셀 제조방법.
- 제 6 항에 있어서, 상기 흡입 장치는 전지케이스의 상면에 접하는 제 1 흡입 패드와 하면에 접하는 제 2 흡입 패드로 구성되어 있는 것을 특징으로 하는 전지셀 제조방법.
- 제 7 항에 있어서, 상기 제 1 흡입 패드와 제 2 흡입 패드는 각각 전지케이스의 외면에 접하는 밀착부, 및 상기 밀착부에 연결되어 있고 전지케이스 미실링 부위에 천공되어 있는 관통구와 연통되며 진공을 인가하는 중공부를 포함하는 구조로 이루어진 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항에 있어서, 상기 과정(c) 내지 과정(e) 중 적어도 하나의 과정에서 전지셀에 열을 가하는 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항에 있어서, 상기 과정(c) 내지 과정(e) 중 적어도 하나의 과정에서 전지셀에 초음파를 가진하는 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항에 있어서, 상기 과정(e) 이후에, 상기 미실링 부위의 내측을 열융착하여 실링한 후, 나머지 외측 부위를 절취하는 과정을 추가로 포함하는 것을 특징으로 하는 전지셀 제조방법.
- 제 1 항 내지 제 11 항 중 어느 하나에 따른 방법으로 제조된 것을 특징으로 하는 전지셀.
- 제 12 항에 있어서, 상기 전지셀은 리튬 이차전지인 것을 특징으로 하는 전지셀.
- 제 1 항의 제조방법의 활성화 과정에서 발생한 가스와 잉여 전해액을 제거하는 공정에 사용되는 장치로서,관통구가 천공되어 있는 전지케이스의 단부가 일측 방향으로 돌출되도록 전지셀을 탑재하는 홀더;상기 홀더에 탑재된 전지셀을 상부로부터 가압하는 프레스 블록;상기 전지케이스의 단부를 열융착 실링하기 위해 홀더의 외측에 위치하는 한 쌍의 실링 블록; 및상기 관통구가 천공되어 있는 전지케이스의 단부에서 전지케이스의 상면과 하면을 서로 대향 방향으로 잡아당겨 벌리면서 진공을 인가하여, 상기 활성화 과정에서 발생한 가스와 잉여 전해액을 제거하는 한 쌍의 흡입 패드;를 포함하고 있는 것을 특징으로 하는 장치.
- 제 14 항에 있어서, 상기 홀더는 전지셀에 열을 가하는 히터를 내장하고 있는 것을 특징으로 하는 장치.
- 제 14 항에 있어서, 상기 홀더는 전지셀에 초음파를 가진하는 초음파 가진기를 내장하고 있는 것을 특징으로 하는 장치.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11845315.8A EP2648261B1 (en) | 2010-12-02 | 2011-11-08 | Method for manufacturing battery cell and battery cell produced using same |
| JP2013541910A JP5593454B2 (ja) | 2010-12-02 | 2011-11-08 | バッテリセルの製造方法、及びその製造方法で製造されたバッテリセル |
| CN201180054624.6A CN103201890B (zh) | 2010-12-02 | 2011-11-08 | 用于制造电池单元的方法和使用该方法制造的电池单元 |
| US13/874,503 US8974955B2 (en) | 2010-12-02 | 2013-05-01 | Method for manufacturing battery cell and battery cell manufactured using the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100122334A KR101304870B1 (ko) | 2010-12-02 | 2010-12-02 | 전지셀의 제조방법 및 이를 이용하여 생산되는 전지셀 |
| KR10-2010-0122334 | 2010-12-02 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/874,503 Continuation US8974955B2 (en) | 2010-12-02 | 2013-05-01 | Method for manufacturing battery cell and battery cell manufactured using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2012074212A2 true WO2012074212A2 (ko) | 2012-06-07 |
| WO2012074212A3 WO2012074212A3 (ko) | 2012-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2011/008468 Ceased WO2012074212A2 (ko) | 2010-12-02 | 2011-11-08 | 전지셀의 제조방법 및 이를 이용하여 생산되는 전지셀 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8974955B2 (ko) |
| EP (1) | EP2648261B1 (ko) |
| JP (1) | JP5593454B2 (ko) |
| KR (1) | KR101304870B1 (ko) |
| CN (1) | CN103201890B (ko) |
| TW (1) | TWI436515B (ko) |
| WO (1) | WO2012074212A2 (ko) |
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| JP2015088324A (ja) * | 2013-10-30 | 2015-05-07 | 日産自動車株式会社 | 電池の製造方法および製造装置 |
| JP2015536035A (ja) * | 2013-09-30 | 2015-12-17 | エルジー・ケム・リミテッド | 二次電池の製造方法 |
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| KR101884405B1 (ko) * | 2012-08-03 | 2018-08-02 | 에스케이이노베이션 주식회사 | 파우치형 이차전지의 실링방법 |
| KR102193268B1 (ko) * | 2013-03-14 | 2020-12-23 | 에네베이트 코포레이션 | 전기화학 전지 스택을 위한 클램핑 디바이스 |
| KR101629482B1 (ko) * | 2013-07-31 | 2016-06-10 | 주식회사 엘지화학 | 활성화 공정 중 전지를 가압하는 리튬 이차전지의 제조방법 |
| KR101603074B1 (ko) * | 2013-09-27 | 2016-03-14 | 주식회사 엘지화학 | 가열 부재를 포함하는 전지셀 절곡 장치 |
| KR101713075B1 (ko) * | 2013-09-30 | 2017-03-07 | 주식회사 엘지화학 | 절연 특성이 향상된 전지셀의 제조장치 |
| KR101525572B1 (ko) * | 2013-10-23 | 2015-06-04 | 비나텍주식회사 | 에너지 저장 장치의 케이스 천공 장치 |
| KR101669714B1 (ko) * | 2013-11-29 | 2016-10-27 | 주식회사 엘지화학 | 폴리머 전지의 제조 방법 |
| JP6242199B2 (ja) * | 2013-12-11 | 2017-12-06 | 日産自動車株式会社 | 二次電池の製造方法および製造装置 |
| KR102195734B1 (ko) * | 2014-01-27 | 2020-12-28 | 삼성에스디아이 주식회사 | 파우치형 배터리셀의 제조방법 |
| JP6336607B2 (ja) * | 2014-02-14 | 2018-06-06 | エルジー・ケム・リミテッド | シワ防止用部材を含む電池セル |
| KR101650858B1 (ko) * | 2014-03-13 | 2016-08-24 | 주식회사 엘지화학 | 전지셀의 제조방법 및 전지셀의 가스 제거 장치 |
| JP6542754B2 (ja) * | 2014-03-25 | 2019-07-10 | 株式会社エンビジョンAescエナジーデバイス | 二次電池の製造方法 |
| KR101675012B1 (ko) * | 2014-03-31 | 2016-11-10 | 주식회사 엘지화학 | 배터리 셀 제조방법 |
| TWI602339B (zh) | 2014-06-23 | 2017-10-11 | 台達電子工業股份有限公司 | 電池的製作方法 |
| KR101863703B1 (ko) * | 2014-10-20 | 2018-06-01 | 주식회사 엘지화학 | 파우치형 이차 전지 및 이의 제조방법 |
| KR101942496B1 (ko) | 2015-08-20 | 2019-01-25 | 주식회사 엘지화학 | 진동을 이용한 전지셀 제조용 가스 트랩 제거 장치 |
| KR20170026230A (ko) * | 2015-08-27 | 2017-03-08 | 주식회사 엘지화학 | 이차전지의 실링장치 |
| JP6598245B2 (ja) * | 2015-10-23 | 2019-10-30 | 日産自動車株式会社 | 二次電池の製造方法とその製造装置 |
| KR102010037B1 (ko) * | 2015-11-17 | 2019-08-12 | 주식회사 엘지화학 | 파우치형 이차전지를 위한 실링장치 및 파우치형 이차전지의 제작방법 |
| KR101941145B1 (ko) * | 2015-12-16 | 2019-01-23 | 주식회사 엘지화학 | 전지케이스, 이차전지 및 그의 제조방법 |
| KR101947149B1 (ko) * | 2015-12-16 | 2019-02-13 | 주식회사 엘지화학 | 가압과 열 인가 면적이 증대된 전지케이스의 밀봉 장치 |
| KR102099691B1 (ko) * | 2016-02-05 | 2020-04-10 | 주식회사 엘지화학 | 조절 가능한 밸브를 이용한 전지셀의 탈기 장치 및 이를 이용한 탈기 방법 |
| KR102177819B1 (ko) * | 2016-02-11 | 2020-11-11 | 주식회사 엘지화학 | 각형 이차전지의 제조 방법 및 제조 장치 |
| CN107134593A (zh) * | 2016-02-26 | 2017-09-05 | 郑州比克电池有限公司 | 一种锂离子聚合物电池顶封封头 |
| RU168541U1 (ru) * | 2016-03-17 | 2017-02-08 | Евгений Алексеевич Чудинов | Литий-ионный аккумулятор |
| KR102091583B1 (ko) * | 2016-04-19 | 2020-03-20 | 주식회사 엘지화학 | 가열 밀봉에 기반한 전지셀 제조 방법 |
| KR102181551B1 (ko) * | 2016-07-27 | 2020-11-20 | 주식회사 엘지화학 | 전자기장을 이용하는 전지셀의 제조 방법 |
| KR102067715B1 (ko) | 2016-12-01 | 2020-01-17 | 주식회사 엘지화학 | 배터리 셀 디가싱 장치 |
| KR102106111B1 (ko) * | 2016-12-20 | 2020-04-29 | 주식회사 엘지화학 | 파우치형 전지의 전해액 주액방법 |
| KR102182688B1 (ko) * | 2017-01-05 | 2020-11-24 | 주식회사 엘지화학 | 배터리 제조 장치 및 방법 |
| KR102135266B1 (ko) * | 2017-02-06 | 2020-07-17 | 주식회사 엘지화학 | 배터리 셀 제조 장치 및 방법 |
| US11233273B2 (en) | 2017-09-01 | 2022-01-25 | Lg Chem, Ltd. | Method for manufacturing electrochemical device using pretreatment discharge |
| WO2019054184A1 (ja) | 2017-09-13 | 2019-03-21 | 富士フイルム株式会社 | 全固体二次電池、全固体二次電池用外装材及び全固体二次電池の製造方法 |
| KR102347901B1 (ko) | 2017-10-17 | 2022-01-06 | 주식회사 엘지에너지솔루션 | 균열 방지 구조를 포함하는 파우치형 전지케이스 및 이의 제조방법 |
| KR102394495B1 (ko) * | 2017-11-14 | 2022-05-04 | 주식회사 엘지에너지솔루션 | 이차 전지용 파우치, 이차 전지 및 그의 제조 방법 |
| KR102164254B1 (ko) | 2017-11-15 | 2020-10-12 | 주식회사 엘지화학 | 이차 전지 및 그의 제조 방법, 이차 전지용 파우치 및 그의 제조 방법 |
| KR20190055595A (ko) | 2017-11-15 | 2019-05-23 | 주식회사 엘지화학 | 이차 전지의 제조 방법 및 이차 전지의 디가싱 장치 |
| KR102394494B1 (ko) * | 2017-11-15 | 2022-05-04 | 주식회사 엘지에너지솔루션 | 이차전지 제조시스템 및 제조방법 |
| WO2019117558A1 (ko) | 2017-12-15 | 2019-06-20 | 주식회사 엘지화학 | 이차전지의 제조방법 |
| KR102320016B1 (ko) * | 2017-12-15 | 2021-11-02 | 주식회사 엘지에너지솔루션 | 이차전지의 제조방법 |
| DE102017223231A1 (de) | 2017-12-19 | 2019-06-19 | Thyssenkrupp Ag | Entgasungs-Vorrichtung und Entgasungs-Verfahren für eine Batteriezelle |
| KR102527981B1 (ko) | 2018-08-31 | 2023-05-03 | 주식회사 엘지에너지솔루션 | 파우치, 그를 포함하는 이차전지 및 이차전지 제조방법 |
| CN109239606B (zh) * | 2018-09-14 | 2020-06-30 | 力信(江苏)能源科技有限责任公司 | 一种锂离子电池预化成负压失效检测方法 |
| KR102389408B1 (ko) * | 2019-01-07 | 2022-04-22 | 주식회사 엘지에너지솔루션 | 디가싱장치. 그를 포함하는 이차전지 제조설비 및 제조방법 |
| KR102772424B1 (ko) | 2019-08-05 | 2025-02-25 | 주식회사 엘지에너지솔루션 | 이차전지의 가스 제거 장치 및 이를 이용한 가스 제거 방법 |
| KR102804032B1 (ko) * | 2019-08-27 | 2025-05-09 | 주식회사 엘지에너지솔루션 | 이차 전지용 전지 케이스 및 파우치 형 이차 전지 제조 방법 |
| CN110571476B (zh) * | 2019-09-18 | 2022-07-29 | 河南锂动电源有限公司 | 一种镍钴锰酸锂叠片软包电池的制备方法及电池 |
| US11411260B2 (en) * | 2019-10-23 | 2022-08-09 | Ford Global Technologies, Llc | Lithium-ion cell containing solid adsorbent and method of producing the same |
| CN110739498A (zh) * | 2019-11-29 | 2020-01-31 | 湖北金泉新材料有限责任公司 | 一种锂离子电池负压化成方法及得到的锂离子电池 |
| US11742525B2 (en) | 2020-02-07 | 2023-08-29 | 24M Technologies, Inc. | Divided energy electrochemical cell systems and methods of producing the same |
| KR102779856B1 (ko) * | 2020-02-13 | 2025-03-12 | 주식회사 엘지에너지솔루션 | 이차전지 가압장치 및 가압방법 |
| KR102647173B1 (ko) * | 2020-03-09 | 2024-03-14 | 엘지전자 주식회사 | 이차전지 제조 장치 |
| KR102847783B1 (ko) * | 2020-05-07 | 2025-08-19 | 주식회사 엘지에너지솔루션 | 디개싱장치 및 디개싱방법 |
| JP2021180072A (ja) * | 2020-05-11 | 2021-11-18 | 株式会社スリーダム | ラミネート型セル、バッテリモジュール、及びラミネート型セルの製造方法 |
| KR102284678B1 (ko) | 2020-05-22 | 2021-08-03 | 주식회사 알에스오토 | 이차 전지용 파우치의 디가스 장치 및 이를 이용한 디가스 방법 |
| CN111584943B (zh) * | 2020-06-15 | 2021-10-26 | 湖北亿纬动力有限公司 | 一种软包锂离子电池的制备方法及软包锂离子电池 |
| US12381277B2 (en) | 2020-06-17 | 2025-08-05 | 24M Technologies, Inc. | Electrochemical cells with flame retardant mechanism and methods of producing the same |
| KR102285961B1 (ko) * | 2020-06-26 | 2021-08-04 | 주식회사 알에스오토 | 이차 전지용 파우치의 디가스 시스템 |
| DE102020125990A1 (de) * | 2020-10-05 | 2022-04-07 | Volkswagen Aktiengesellschaft | Verfahren zur Formierung einer Batteriezelle |
| DE102020213462A1 (de) * | 2020-10-26 | 2022-04-28 | Volkswagen Aktiengesellschaft | Verfahren zur Herstellung einer Batteriezelle |
| KR102798474B1 (ko) * | 2020-12-01 | 2025-04-22 | 주식회사 엘지에너지솔루션 | 전지 셀의 충방전 장치 및 이를 이용한 전지 셀의 충방전 방법 |
| KR102299967B1 (ko) * | 2021-05-11 | 2021-09-09 | 주식회사 티엠프라자 | 진공호퍼 프리챠져용 히팅트레이 |
| JP7542911B2 (ja) * | 2021-08-24 | 2024-09-02 | エルジー エナジー ソリューション リミテッド | 二次電池、その製造方法及び電池パック |
| KR102853958B1 (ko) * | 2021-09-28 | 2025-09-03 | 주식회사 엘지에너지솔루션 | 파우치형 이차 전지 및 그 이차 전지의 실링 장치와 그 이차 전지의 실링 방법 |
| EP4239762A4 (en) * | 2021-09-28 | 2024-11-06 | LG Energy Solution, Ltd. | POUCH-TYPE SECONDARY BATTERY, SEALING DEVICE FOR SECONDARY BATTERY, AND SEALING METHOD FOR SECONDARY BATTERY |
| KR20230075302A (ko) * | 2021-11-22 | 2023-05-31 | 주식회사 엘지에너지솔루션 | 디가싱 장치 |
| JP7718398B2 (ja) * | 2022-12-05 | 2025-08-05 | トヨタ自動車株式会社 | 電池の製造方法および電池 |
| KR102740874B1 (ko) * | 2024-03-08 | 2024-12-10 | (주)세미로드 | 파우치형 이차전지용 잔존가스 배출장치 |
| KR20260013062A (ko) * | 2024-07-19 | 2026-01-27 | 삼성에스디아이 주식회사 | 이차전지 제조방법 및 이차전지 제조장치 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010082059A (ko) | 2000-02-08 | 2001-08-29 | 성재갑 | 중첩 전기화학 셀 및 그의 제조 방법 |
| KR20010082058A (ko) | 2000-02-08 | 2001-08-29 | 성재갑 | 중첩 전기 화학 셀 |
| KR20010082060A (ko) | 2000-02-08 | 2001-08-29 | 성재갑 | 다중 중첩 전기화학 셀 및 그의 제조방법 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2798895A (en) * | 1954-06-18 | 1957-07-09 | Ray O Vac Co | Point contact battery |
| US3785873A (en) * | 1972-07-03 | 1974-01-15 | Esb Inc | Activated battery |
| US6048638A (en) * | 1998-05-29 | 2000-04-11 | Motorola, Inc. | Flexible battery |
| US6379838B1 (en) * | 1999-04-14 | 2002-04-30 | Alcatel | Cell package |
| JP2001176497A (ja) | 1999-12-15 | 2001-06-29 | Sanyo Electric Co Ltd | 非水電解質二次電池 |
| US6676714B2 (en) * | 2001-02-08 | 2004-01-13 | Eveready Battery Company, Inc. | Apparatus and method for assembling a flexible battery that is electrolyte-tight |
| KR100591443B1 (ko) * | 2004-06-21 | 2006-06-22 | 삼성에스디아이 주식회사 | 파우치형 리튬 이차 전지 및 그의 제조 방법 |
| US7682735B2 (en) | 2005-03-28 | 2010-03-23 | Samsung Sdi Co., Ltd. | Pouch type lithium secondary battery and method of fabricating the same |
| KR100880386B1 (ko) | 2005-06-03 | 2009-01-23 | 주식회사 엘지화학 | 신규한 구조의 이차전지 및 이를 포함하는 전지팩 |
| CN1322603C (zh) * | 2005-09-28 | 2007-06-20 | 吉林省巨力电池有限公司 | 自然环境中制造软包装锂离子电池的方法 |
| KR100821856B1 (ko) | 2005-11-08 | 2008-04-15 | 주식회사 엘지화학 | 안전성이 향상된 이차전지 |
| KR100719736B1 (ko) | 2005-12-29 | 2007-05-17 | 삼성에스디아이 주식회사 | 파우치형 리튬 이차전지 및 그 제조방법 |
| KR100876455B1 (ko) * | 2006-07-31 | 2008-12-29 | 주식회사 엘지화학 | 미실링 잉여부를 포함하고 있는 파우치형 이차전지 |
| US8053230B2 (en) | 2006-09-07 | 2011-11-08 | Nalge Nunc International Corporation | Culture dish with lid |
| JP5358906B2 (ja) * | 2006-12-08 | 2013-12-04 | 日産自動車株式会社 | バイポーラ電池の製造方法 |
| JP4967650B2 (ja) * | 2006-12-27 | 2012-07-04 | 日産自動車株式会社 | 2次電池の製造方法 |
-
2010
- 2010-12-02 KR KR1020100122334A patent/KR101304870B1/ko active Active
-
2011
- 2011-11-08 CN CN201180054624.6A patent/CN103201890B/zh active Active
- 2011-11-08 JP JP2013541910A patent/JP5593454B2/ja active Active
- 2011-11-08 EP EP11845315.8A patent/EP2648261B1/en active Active
- 2011-11-08 WO PCT/KR2011/008468 patent/WO2012074212A2/ko not_active Ceased
- 2011-11-23 TW TW100143007A patent/TWI436515B/zh active
-
2013
- 2013-05-01 US US13/874,503 patent/US8974955B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010082059A (ko) | 2000-02-08 | 2001-08-29 | 성재갑 | 중첩 전기화학 셀 및 그의 제조 방법 |
| KR20010082058A (ko) | 2000-02-08 | 2001-08-29 | 성재갑 | 중첩 전기 화학 셀 |
| KR20010082060A (ko) | 2000-02-08 | 2001-08-29 | 성재갑 | 다중 중첩 전기화학 셀 및 그의 제조방법 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2648261A4 |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101627061B1 (ko) * | 2012-06-11 | 2016-06-03 | 닛산 지도우샤 가부시키가이샤 | 2차 전지의 제조 방법 및 제조 장치 |
| CN104380514A (zh) * | 2012-06-11 | 2015-02-25 | 日产自动车株式会社 | 二次电池的制造方法和制造装置 |
| EP2860809A4 (en) * | 2012-06-11 | 2015-07-08 | Nissan Motor | PRODUCTION PROCESS AND MANUFACTURING DEVICE FOR SECONDARY BATTERY |
| JPWO2013187161A1 (ja) * | 2012-06-11 | 2016-02-04 | 日産自動車株式会社 | 二次電池の製造方法および製造装置 |
| KR20150013245A (ko) * | 2012-06-11 | 2015-02-04 | 닛산 지도우샤 가부시키가이샤 | 2차 전지의 제조 방법 및 제조 장치 |
| US9722274B2 (en) | 2012-06-11 | 2017-08-01 | Nissan Motor Co., Ltd. | Manufacturing method and manufacturing device of secondary battery |
| JP2015536035A (ja) * | 2013-09-30 | 2015-12-17 | エルジー・ケム・リミテッド | 二次電池の製造方法 |
| US9847547B2 (en) | 2013-09-30 | 2017-12-19 | Lg Chem, Ltd. | Method of manufacturing secondary battery |
| JP2015088324A (ja) * | 2013-10-30 | 2015-05-07 | 日産自動車株式会社 | 電池の製造方法および製造装置 |
| US10121999B2 (en) * | 2013-12-11 | 2018-11-06 | Nissan Motor Co., Ltd. | Degassing hole formation process and degassing hole formation apparatus for secondary battery |
| CN109478675A (zh) * | 2016-12-01 | 2019-03-15 | 株式会社Lg化学 | 电池单元除气设备 |
| CN108232321A (zh) * | 2018-03-02 | 2018-06-29 | 电子科技大学中山学院 | 一种基于真空环境的锂电池封口装置 |
| CN108232321B (zh) * | 2018-03-02 | 2023-11-07 | 常州厚德再生资源科技有限公司 | 一种基于真空环境的锂电池封口装置 |
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| JP2014502024A (ja) | 2014-01-23 |
| US20130244093A1 (en) | 2013-09-19 |
| US8974955B2 (en) | 2015-03-10 |
| WO2012074212A3 (ko) | 2012-09-07 |
| CN103201890B (zh) | 2016-01-06 |
| TWI436515B (zh) | 2014-05-01 |
| KR20120060707A (ko) | 2012-06-12 |
| TW201246657A (en) | 2012-11-16 |
| JP5593454B2 (ja) | 2014-09-24 |
| EP2648261A2 (en) | 2013-10-09 |
| CN103201890A (zh) | 2013-07-10 |
| KR101304870B1 (ko) | 2013-09-06 |
| EP2648261B1 (en) | 2017-03-08 |
| EP2648261A4 (en) | 2016-01-20 |
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