WO2017082618A1 - 겔 폴리머 전해질의 제조를 위한 경화용 다이 및 이를 사용한 겔 폴리머 전지셀의 제조방법 - Google Patents
겔 폴리머 전해질의 제조를 위한 경화용 다이 및 이를 사용한 겔 폴리머 전지셀의 제조방법 Download PDFInfo
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- WO2017082618A1 WO2017082618A1 PCT/KR2016/012838 KR2016012838W WO2017082618A1 WO 2017082618 A1 WO2017082618 A1 WO 2017082618A1 KR 2016012838 W KR2016012838 W KR 2016012838W WO 2017082618 A1 WO2017082618 A1 WO 2017082618A1
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- die
- battery cell
- gel polymer
- curing
- processing
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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
- H01M10/05—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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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
- H01M10/0404—Machines for assembling batteries
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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
- H01M10/05—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
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- 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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- 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
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
- H01M4/1315—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
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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
- H01M2300/00—Electrolytes
- H01M2300/0085—Immobilising or gelification of electrolyte
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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
Definitions
- the present invention relates to a curing die for producing a gel polymer electrolyte and a method for producing a gel polymer battery cell using the same.
- the electrochemical device is the field that is attracting the most attention in this respect, in particular, with the recent trend of miniaturization and light weight of the electronic device, the development of a secondary battery as a battery capable of small, light weight and high capacity has become a focus of attention.
- the secondary battery may include a lead storage battery, a nickel cadmium battery (NiCd), a nickel hydrogen storage battery (NiMH), a lithium ion battery (Li-ion), and a lithium ion polymer battery (Li-ion polymer).
- NiCd nickel cadmium battery
- NiMH nickel hydrogen storage battery
- Li-ion lithium ion battery
- Li-ion polymer lithium ion polymer battery
- a 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 metal can such as a cylinder or a square or an aluminum laminate sheet, and injecting an electrolyte into the electrode assembly.
- a liquid electrolyte in which a salt is dissolved in a non-aqueous organic solvent is mainly used.
- a liquid electrolyte is not only highly likely to be volatilized by an organic solvent, but also has a disadvantage in that its safety is weak because it may be burned by an increase in the ambient temperature and the temperature of the battery itself.
- a lithium secondary battery has a problem in that gas is generated inside the battery due to decomposition of a carbonate organic solvent and / or side reaction between the organic solvent and the electrode during charging and discharging, thereby expanding the thickness of the battery. Thus, the amount of gas generated is further increased.
- This continuously generated gas causes an increase in the internal pressure of the battery, which causes the center of the specific surface of the battery to deform such as swelling of the square battery in a specific direction, as well as a local difference in adhesion at the electrode surface of the battery. This causes the problem that the electrode reaction does not occur equally in the entire electrode surface. Therefore, the performance and safety degradation of the battery is necessarily caused.
- a polymer electrolyte is used to overcome the safety problem of the liquid electrolyte.
- the safety of the cell is improved in the order of liquid electrolyte ⁇ gel polymer electrolyte ⁇ solid polymer electrolyte.
- the solid polymer electrolyte since the ion conductivity is very low at room temperature, commercialization of the battery composed of the solid polymer electrolyte is very limited due to the weak battery performance.
- the gel polymer electrolyte may have an ion conductivity close to that of the liquid electrolyte, and there is no possibility of fluidity or leakage.
- the chemically cross-linked gel polymer electrolyte has an advantage that there is little structural change with heating or time since the network structure is formed by chemical bonding.
- a gel polymer electrolyte composition in which a reactive monomer or oligomer and an initiator is dissolved in a liquid electrolyte is injected into a battery case in which an electrode assembly is incorporated. After pouring the cell is stored in a high temperature oven, a method of cross-linking and curing the monomer or oligomer contained in the electrolyte solution has been proposed.
- the liquid electrolyte is randomly located in the extra space in the case, which increases the volume of the unnecessary battery and results in uneven appearance due to gelation. There is this.
- the curing process includes the unsealed portion of the battery case, when the electrolyte is cured in the unsealed portion, there is a problem in that the sealing strength is weakened when resealing later.
- 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 is to uniformly form a composition for forming a gel polymer electrolyte in a battery case when a crosslinking reaction for forming a gel polymer electrolyte is performed.
- a curing die for preparing a gel polymer electrolyte and a method for producing a gel polymer battery using the same.
- the composition for forming a gel polymer electrolyte is not leaked to the unsealed portion of the battery case, the curing for the manufacture of a gel polymer electrolyte, which can solve the problem of weakening the sealing strength during resealing (reealing) To provide a die and a method for producing a gel polymer battery cell using the same.
- a first die having an indentation portion in which a battery cell for processing comprising an electrode assembly and a composition for forming a gel polymer electrolyte is mounted in the battery case;
- a second die coupled to a first die for sealing a processing battery cell mounted in the indentation portion;
- the shape and size of the indentation portion of the first die corresponds to the shape and size of the processing battery cell to be mounted.
- the processing battery cell is mounted to the indentation portion of the first die, and the second die is coupled to the first die to seal the processing battery cell, the liquid state contained in the processing battery cell inside the curing die.
- the composition for gel polymer electrolyte formation of the same can be distributed in the same way as the shape of the indentation portion, and the form can be maintained. Therefore, after curing through the cross-linking reaction of the composition for forming a gel polymer electrolyte, the gel polymer battery cell may have a smooth appearance without being bumpy in the shape of a closed indentation.
- the processing battery cell may include an unsealed portion for injecting the composition for forming a gel polymer electrolyte, and there is a problem in that an electrolyte flows out of the unsealed portion, but the processing battery cell is mounted on the curable die.
- the unsealed portion of the processing battery cell is kept in a sealed state by the combination of the first die and the second die at the outside of the indentation portion of the battery case in which the electrode assembly mainly distributed Since it can be prevented from flowing out from the storage portion to the unsealed portion, the problem of weakening the sealing strength during resealing can also be solved.
- the curing die for achieving this purpose is to crosslink the reaction of the composition for forming the gel polymer electrolyte in the processing battery cell mounted therein so that the composition can reach a temperature to the extent that the initiator can start the reaction. It should be possible to transfer heat, at least one of the first die and the second die may be part or all of the heat conductive material.
- the first die or the second die may be made of a thermally conductive material, a portion of the first die and / or a portion of the second die may be made of a thermally conductive material, the first die and the second die.
- the die is not limited as long as the die can be made of a thermally conductive material and can transfer heat to the battery cell for processing.
- the second die which is in contact with the electrode terminal when combined with the peripheral portion of the portion where the electrode terminal of the first die is placed and the first die so that problems such as a short in the contact portion of the electrode terminal of the processing battery cell do not occur.
- the periphery of the portion of may be made of a heat resistant material such as plastic rather than a thermally conductive material.
- a part of the first die and / or the second die is made of a thermally conductive material, in particular, in the first die and the second die. It is preferable that the peripheral part of the part which abuts the electrode terminal of a battery cell for processing is a heat resistant material, such as plastics, and the remainder is a heat conductive material.
- a part of the die may be randomly formed or a predetermined pattern may be formed of a thermally conductive material except for the periphery of the portion contacting the electrode terminal of the processing battery cell, but the composition for forming a gel polymer electrolyte in the processing battery cell may be formed.
- the heat is effectively transmitted, and it is preferably made of a thermally conductive material, including a part or all of the indentation of the first die in which the processing battery cell is embedded, or the indentation of the first die of the second die. It is preferable to include a part or all of the part facing the heat conductive material, and furthermore, only part or all of the indentation of the first die and the corresponding second die may be made of the heat conductive material. .
- the thermally conductive material is not limited as long as it is a material capable of transferring heat, but may be, in detail, may be a metal having high thermal conductivity, and more specifically, aluminum (Al), copper (Cu), It may be any one selected from the group consisting of platinum (Pt), gold (Au), nickel (Ni), iron (Fe), zinc (Zn), and alloys thereof, but is not limited thereto.
- the curing die is used only to maintain the shape of the battery cell for processing, the curing die may be stored in the oven again to proceed with the curing according to the electrolyte crosslinking reaction, according to the present invention the curing die itself It is also possible to gel the composition for forming a gel polymer electrolyte by a simpler method by having a heating function and proceeding curing without using an oven separately.
- At least one of the first die and the second die may include a heating wire connected to a temperature control device so that the curing die may enable its own heating.
- the position at which the hot wire is formed is related to a portion made of a thermally conductive material among the above-described curable dies.
- the die is formed to include a position corresponding to a portion made of a thermally conductive material.
- the hot wire is included inside the first die, and some or all of the second die is made of a thermally conductive material.
- the heating wire may be included inside the second die.
- both the first die and the second die include a portion made of a thermally conductive material, only one of them may include a hot wire, but in detail, both dies may include a hot wire.
- the position of the heating wire is not limited, but variously possible, for example, it can be uniformly distributed so as to evenly transfer heat to the entire die, crosslinking reaction of the composition for forming a gel polymer electrolyte more efficiently with the same power
- the processing battery cell may be distributed in the vicinity of the indentation portion of the first die or in a portion of the second die facing the indentation portion.
- the hot wire may be distributed only in the corresponding portion.
- the electrode terminals of the processing battery cell so as to simplify the process by also performing the activation process of the gel polymer battery cell including the same. Die terminals in contact with the.
- the first die and the second die may include die terminals each made of a conductive material at a position contacting the electrode terminals of the processing battery cell, and the die terminals may be connected to an external charge / discharge device.
- the curing die having such a configuration can be charged and discharged for the activation process continuously after the formation of the gel polymer electrolyte, thereby simplifying the subsequent process.
- the die terminals are for charging and discharging.
- the die terminals formed on the first die and the die terminals formed on the second die have the same polarity when the first die and the second die are combined. It may be formed in a corresponding position so as to be in contact with each other, and even if the battery cell for processing thereafter is mounted so that the polarity of the electrode terminals and the polarity of the die terminals of the processing battery cell correspond.
- the die terminals may include a positive die terminal in contact with the positive electrode terminal of the processing battery cell and a negative die terminal in contact with the negative terminal of the processing battery cell.
- the formation positions of the (+) die terminals and (-) die terminals depend on the positional relationship to the electrode terminals of the processing battery cell to be mounted.
- the (+) die terminal and the (-) die terminal are independent of the outer surface of one end of the indentation portion.
- the electrode terminals of the battery cell to form a bidirectional battery cell protruding in different directions from one end and the other end of the battery cell in the first die, (+) die terminal and ( -) The die terminal may be formed on the outer surface of one end of the indentation and the outer surface of the other end opposite to the outer surface of the one end.
- the die terminals in the second die may be formed at positions corresponding to the same polarities as the die terminals of the first die.
- the conductive material is not limited as long as it has a conductive material that enables the movement of electrons, but may be a metal in detail, and more specifically, copper (Cu), nickel (Ni), iron (Fe), and aluminum. (Al) or an alloy thereof.
- a specific material may be determined according to whether the conductive material is a positive (+) die terminal or a negative (-) die terminal, and the material may have the same material or contact resistance as electrode terminals of the battery cell for electrical contact.
- the positive die terminal connected to the positive terminal of the processing battery cell may be made of aluminum or nickel, and the negative die terminal connecting to the negative terminal of the processing battery cell is copper. Or nickel.
- the periphery of the die terminals may be made of a heat resistant material such as plastic in order to prevent problems such as short generation described above.
- peripheral part used in the present invention means a part away from a predetermined configuration, and specifically, an electrode of a battery cell for processing in consideration of a part where an electrode terminal abuts and a part where a die terminal is located. In the direction in which the terminal protrudes, it means all or part of the outer surface based on both end portions of the indentation portion.
- the second die of the hardening die may also have a structure in which an additional indentation is formed at a position corresponding to the indentation of the first die, similarly to the first die, and the second die may have a flat structure without indentation. It may consist of.
- the total depth of the indents formed in the dies may be set to correspond to the depth of the battery cell for processing.
- the depth of the indentation may vary depending on the thickness of the battery cell for processing, so that the bottom of the indentation may be mechanically movable so that the depth of the indentation may be adjusted according to the situation.
- first die and the second die may be independent members, but in detail, the first die and the second die may be a structure in which one end portion is interconnected by a hinge.
- the present invention also provides a method for producing a gel polymer battery cell using such a curing die.
- the step of controlling the curing die of step (iii) to gelate the gel polymer electrolyte forming composition in the battery case by a crosslinking reaction putting the curing die equipped with the processing battery cell in an oven in the oven
- the die may be heated by controlling a temperature or by applying a current to a heating wire of the curing die to gelate the composition for forming a gel polymer electrolyte.
- the hardening die when it does not contain a hot wire, it can be placed in an oven to control the temperature to gel the gel polymer electrolyte-forming composition, and for hardening that includes a hot wire in terms of simplification of the process.
- the die can be used to gel itself.
- the temperature for the crosslinking reaction of the gel polymer electrolyte composition may be 30 degrees to 100 degrees Celsius.
- the crosslinking reaction means that the initiator contained in the composition for forming a gel polymer electrolyte forms a radical to initiate crosslinking, so that the reactive monomer or oligomer forms a polymer.
- the initiator should be raised to a temperature at which the initiator forms a radical to start crosslinking.
- the temperature may vary depending on the type of the initiator, but most of the crosslinking reactions start the crosslinking reaction within the above range. It is preferable that the temperature is in the above range in view of energy efficiency.
- the gel polymer electrolyte composition may include a lithium salt and an electrolyte solvent together with the above-mentioned initiator and a reactive monomer or oligomer.
- the initiator benzoyl peroxide, acetyl peroxide, dilauryl peroxide, di-tert-butyl peroxide, t-butylperoxy Organic peroxides, such as t-butyl peroxy-2-ethyl-hexanoate, cumyl hydroperoxide, hydrogen peroxide, and hydrogen peroxide, and 2,2'- Azobis (2-cyanobutane) (2,2'-azobis (2-cyanobutane)), 2,2'-azobis (methylbutyronitrile) (2,2'-azobis (methylbutyronitrile)), AIBN ( Azo compounds such as 2,2'-azobis (iso-butyronitrile) and AMVN (2,2'-azobisdimethylvaleronitrile).
- the polymerization initiator may be included in an amount of 0.01 to 2 parts by weight based on 100 parts by weight of the composition for forming a gel polymer electrolyte. If the polymerization initiator is less than 0.01 parts by weight, there is a problem in that the gelation is not good, if the polymerization initiator is more than 2 parts by weight, gelation may occur too quickly or an unreacted initiator may remain, which may adversely affect battery performance.
- the reactive monomer or oligomer may be tetraethylene glycol diacrylate, polyethylene glycol diacrylate (molecular weight 50-20,000), polyethylene glycol dimethacylate. 1,4-butanediol diacrylate, 1,6-hexanediol diacrylate, 1,6-hexandiol diacrylate, trimethylolpropane triacrylate, trimethylol propane Trimethylolpropane ethoxylate triacrylate, trimethylolpropane propoxylate triacrylate, ditrimethylolpropane tetraacrylate, pentaerythritol tetraacrylate, Pentaerythritol ethoxylate tete Acrylate (pentaerythritol ethoxylate tetraacrylate), dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, polyethylene glycol diglycidyl ether, 1 1,5-
- the reactive monomer or oligomer may be included in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of the composition for forming a gel polymer electrolyte. If it is less than 0.5 parts by weight, the gel polymer electrolyte is difficult to form, and if it is more than 10 parts by weight, the gel polymer electrolyte is not only formed, but also the content of the electrolyte solvent in the electrolyte is low so that the ion conductivity of the battery may be reduced and the resistance may be increased. It may cause deterioration of the battery.
- the lithium salt is a substance that is easily dissolved in the electrolyte solvent, for example, LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiPF 6 , LiCF 3 SO 3 , LiCF 3 CO 2 , LiC 4 F 9 SO 3 , the Li (CF3SO2) 3C, LiAsF 6 , LiSbF 6, LiAlCl 4, CH 3 SO 3 Li, (CF 3 SO 2) 2 NLi, chloroborane lithium, lower aliphatic carboxylic acid lithium, lithium tetraphenyl borate and imide Can be used.
- the content of the lithium salt may be 3 to 40 parts by weight based on 100 parts by weight of the composition for forming a gel polymer electrolyte, but is not limited thereto. If the content is less than 3 parts by weight, the concentration of lithium ions is too low to function as an electrolyte. If the content is more than 40 parts by weight, solubility problems of lithium salts and ionic conductivity of the electrolyte may be reduced.
- the electrolyte solution solvent, cyclic carbonate, linear carbonate, lactone, ether, ester, sulfoxide, acetonitrile, lactam, ketone and halogen derivatives thereof may be used alone or in combination of two or more.
- the cyclic carbonates include, for example, ethylene carbonate (EC), propylene carbonate (PC), butylene carbonate (BC), fluoroethylene carbonate (FEC), and the like.
- linear carbonate examples include diethyl carbonate (DEC), Dimethyl carbonate (DMC), dipropyl carbonate (DPC), ethyl methyl carbonate (EMC), methyl propyl carbonate (MPC), and the like.
- the lactone is, for example, gamma butyrolactone (GBL), and examples of the ether include dibutyl ether, tetrahydrofuran, 2-methyltetrahydrofuran, 1,4-dioxane, 1,2-dimethoxy Ethane, 1,2-diethoxyethane and the like.
- esters include, for example, methyl formate, ethyl formate, propyl formate, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, butyl propionate, methyl pivalate and the like.
- the sulfoxide includes dimethyl sulfoxide
- the lactam includes N-methyl-2-pyrrolidone (NMP)
- the ketone includes polymethylvinyl ketone.
- these halogen derivatives can also be used, and are not limited only to the electrolyte solution illustrated above.
- these electrolyte solution solvents can be used individually or in mixture of 2 or more types, respectively.
- the content of the electrolyte solvent may be 0.1 to 98 parts by weight based on 100 parts by weight of the composition for gel polymer electrolyte, but is not limited thereto. If the content is less than 0.1 parts by weight, the ionic conductivity of the electrolyte may be lowered. If the content is more than 98 parts by weight, the mechanical properties of the electrolyte may be reduced, making it difficult to manufacture a thin film.
- the gel polymer battery cell manufacturing method may further comprise (iv) connecting the die terminals of the hardening die to the charging and discharging device, performing a process of activating the battery cell for processing; .
- the hardening die according to the present invention may include die terminals each made of a conductive material at a position in contact with the electrode terminals of the processing battery cell.
- the activation process of the battery cell can be performed. In this way, not only the gel polymer electrolyte but also the activation process may be continuously performed with one die, thereby further simplifying the gel polymer battery cell manufacturing process.
- the temperature control device for applying a current to adjust the temperature
- the charging and discharging device for flowing a current when the curing die includes the die terminals
- the processing battery cell may include an unsealed portion at one side.
- the unsealed portion of the processing battery cell extends from the side surface of the battery cell body in which electrode terminals are not formed, so that the outside of the indentation portion is mounted on the curing die for the crosslinking reaction of the gel polymer electrolyte forming composition. It can be kept in the sealed state by the first die and the second die, it can be prevented from flowing out to the unsealed portion from the storage portion of the battery case in which the electrode assembly in which the composition is mainly distributed is built. There is no problem of weakening the sealing strength when sealing.
- the electrode assembly included in the battery case is composed of a positive electrode and a negative electrode to enable charging and discharging, for example, a structure in which the positive electrode and the negative electrode is laminated with a separator between the folding type It can be made in a (jelly-roll) manner, a stacked manner or a stacked / folded manner.
- the positive electrode is prepared by applying a mixture of a positive electrode active material, a conductive material and a binder on a positive electrode current collector, followed by drying and pressing. If necessary, a filler may be further added to the mixture.
- 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 high conductivity without causing chemical change in the battery. For example, stainless steel, aluminum, nickel, titanium, calcined carbon, or aluminum or stainless steel Surface-treated with carbon, nickel, titanium, silver, and the like may 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 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 expansion of the positive 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 negative electrode is manufactured by coating, drying, and pressing the negative electrode active material on a negative electrode current collector, and optionally, the conductive material, binder, filler, and the like as described above may be further included.
- the negative electrode current collector is generally made of a thickness of 3 ⁇ 500 ⁇ m.
- a negative electrode current collector is not particularly limited as long as it has conductivity without causing chemical change in the battery.
- the surface of copper, stainless steel, aluminum, nickel, titanium, calcined carbon, copper or stainless steel Surface-treated with carbon, nickel, titanium, silver, and the like, 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 negative electrode active material may be, for example, carbon such as hardly graphitized carbon or graphite carbon; Li x Fe 2 O 3 (0 ⁇ x ⁇ 1), Li x WO 2 (0 ⁇ x ⁇ 1), Sn x Me 1 - x Me ' y O z (Me: Mn, Fe, Pb, Ge; Me' Metal complex oxides such as Al, B, P, Si, Group 1, Group 2, Group 3 elements of the periodic table, halogen, 0 ⁇ x ⁇ 1; 1 ⁇ y ⁇ 3; 1 ⁇ z ⁇ 8); Lithium metal; Lithium alloys; Silicon-based alloys; Tin-based alloys; SnO, SnO 2 , PbO, PbO 2 , Pb 2 O 3 , Pb 3 O 4 , Sb 2 O 3 , Sb 2 O 4 , Sb 2 O 5 , GeO, GeO 2 , Bi 2 O 3 , Bi 2 O 4 , and metal oxides such as Bi 2
- the binder, the conductive material and the filler added as necessary are the same as those described for the positive electrode.
- 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 present invention provides a gel polymer battery cell, characterized in that manufactured by the above method, and provides a battery pack including at least one as a unit cell, and further, a device including the battery pack.
- the device may include, but is not limited to, a power tool driven by a mobile electronic device and an electric 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-scooters); Electric golf carts; Power storage systems and the like, but is 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-scooters); Electric golf carts; Power storage systems and the like, but is not limited thereto.
- FIG. 1 is a schematic diagram of a curing die according to one embodiment of the present invention.
- FIG. 2 is a schematic diagram of a curing die according to another embodiment of the present invention.
- FIG. 3 is a schematic diagram of a curing die according to another embodiment of the present invention.
- FIG. 4 is a schematic diagram of a curing die according to another embodiment of the present invention.
- FIG. 5 is a schematic diagram of a curing die according to another embodiment of the present invention.
- FIG. 6 is a schematic diagram of a curing die according to another embodiment of the present invention.
- FIG. 7 is a schematic diagram of a curing die according to another embodiment of the present invention.
- FIG. 8 is a schematic diagram showing one process of a manufacturing process for carrying out a crosslinking reaction using a curing die according to one embodiment of the present invention
- FIG. 9 is a schematic diagram illustrating a bonding state of a first die and a second die in a state in which a processing battery cell is mounted on a curing die in FIG. 8;
- FIG. 10 is a schematic diagram showing one step of a manufacturing process for carrying out a crosslinking reaction and an activating step using a curing die according to another embodiment of the present invention
- FIG. 11 is a schematic view showing a state in which a processing battery cell is mounted on a curing die in FIG. 10; FIG.
- FIG. 12 is a schematic diagram illustrating a coupling state between a first die and a second die in FIG. 11.
- FIG. 1 to 7 schematically illustrate hardening dies 100, 200, 300, 400, 500, 600, and 700 according to an embodiment of the present invention.
- the curing dies 100, 200, 300, 400, 500, 600, and 700 according to the present invention may be used to form an electrode assembly and a gel polymer electrolyte in a battery case.
- the second dies 120, 220, 320, 420, 520, 620, 720, 820, and 920 coupled to 710, 810, and 910 have a structure including the first dies 110, 210, and 310, 410, 510, 610, 710, 810, 910 and the second dies 120, 220, 320, 420, 520, 620, 720, 820, 920 are hinges 130, 230, 330, 430, One end is interconnected by 530, 630, 730, 830, and 930.
- the curing dies 100, 200, 300, 400, 500, 600, 700 according to the present invention the crosslinking reaction of the composition for forming a gel polymer electrolyte in the processing battery cell mounted therein, It includes moieties made of a thermally conductive material to transfer heat so that the initiator can reach a temperature at which it can begin to react.
- the portion of the thermally conductive material in the drawings are colored, and the portion other than the white (or translucent white).
- the hardening die 100 is indented connected by a first die 110 and a first die 110 and a hinge 130 on which an indentation 111 on which a processing battery cell is mounted is formed.
- a second die 120 having a flat structure without an addition is included, in which the periphery of the portion in contact with the electrode terminal of the processing battery cell, that is, the electrode terminal of the processing battery cell protrudes, with reference to both ends of the indentation portion.
- All of the outer surfaces 115 and 125 are made of a heat resistant material such as plastic, and the other part is made of a heat conductive material as a whole.
- the curing die 200 includes a first die 210, a first die 210, and a hinge 230 in which an indentation 211 in which a battery cell is mounted is formed. And a second die 220 of flat structure with no indentations connected by.
- portions of the outer surface 215 and 225 based on both ends of the indentation portion in the direction in which the periphery of the portion contacting the electrode terminal of the processing battery cell, that is, the electrode terminal of the processing battery cell protrude are made of plastic or the like. It is a heat resistant material, and the other part consists entirely of a heat conductive material.
- the first die 210 and the second die 211 may further include the heating wires 212 and 222, respectively, in order to enable heating by itself.
- the heating wires 212 and 222 may be appropriately distributed in terms of efficiency, such as more densely formed near the indentation 211, which is a portion where the processing battery cell is mounted, such as the heating wire 212 of the first die 210. It may be uniformly distributed like the hot wire 222 of the second die 220.
- the hardening die 300 may include a first die 310 and a first die 310 having an indentation 311 in which a battery cell is mounted.
- the structure includes a second die 320 having a flat structure having no indentation connected by the hinge 330, all of the indentations 311 of the first die 310 and the second die facing each other ( Only a portion 321 of the 320 is made of a thermally conductive material in a corresponding area, and the first die 310 and the second die 320 are thermally conductive so as to enable self-heating of the curing die 300.
- the heating wires 312 and 322 are respectively included in the indentation portion 311 made of the material and the portion 321 facing the material.
- first die 310 and the second die 320 comprise hot wires 312, 322. Since only the portion where the processing battery cell is mounted needs to be efficiently heat-transferred, in consideration of manufacturing cost, etc., only the indentation portion 311 and the portion 321 facing it are made of a thermally conductive material as shown in FIG.
- the hot wires 312 and 322 may be distributed only in a portion corresponding thereto. Of course, the distribution of the hot wire may be formed as a whole, the location may also vary and is not limited to the drawings.
- the hardening die 400 may include a first die 410 and a first die 410 having an indentation 411 on which a battery cell is mounted.
- the structure includes a second die 420 having a flat structure without the indentation connected by the hinge 430, a portion 411 (a) of the indentation 411 of the first die 410, Only a portion 421 of the second die 420 facing the indentation 411 is made of a thermally conductive material with a corresponding area (that is, the indentation 411 of the first die 410 is made of a thermally conductive material).
- It consists of a structure comprising a portion 411 (a) and a portion 411 (b) not made of a thermally conductive material).
- 4 illustrates a structure in which the portion 411 (a) made of the thermally conductive material and the portion 411 (b) not made of the thermally conductive material are alternately arranged in a strip shape, but is not limited thereto.
- the shape of the region may be variously represented as a circle, a diagonal line, or a grid.
- the hardening die 400 includes a thermally conductive material only in the indentation portion 411 and the portion 421 facing the bar, and thus the first die of the hardening die 400 (
- the 410 and the second die 420 also include hot wires 412 and 422, respectively, at the indentation 411 made of a thermally conductive material and the portion 421 facing it.
- the curing dies 500 and 600 may respectively include first dies 510 having indentations 511 and 611 on which battery cells are mounted. 610 and second dies 520, 620 of flat structure without indentations connected by first dies 510, 610 and hinges 530, 630, wherein A portion of the outer surface 515, 525, 615, 625 based on both ends of the indentation portion in the direction in which the periphery of the portion contacting the electrode terminal, that is, the electrode terminal of the processing battery cell protrudes, is a heat-resistant material such as plastic.
- the outer portion is made of a thermally conductive material as a whole, and the heating wires 512, 522, 612, and 622 are respectively formed inside the first dies 510 and 610 and the second dies 511 and 611 to be heated by themselves. ) Is included.
- these curing dies 500 and 600 further contact the electrode terminals of the processing battery cell so as to simplify the process by performing the activation process continuously after the crosslinking reaction for the preparation of the gel polymer electrolyte.
- the die terminals 513, 514, 523, 524, 613, 614, 623, and 624 are in contact with the positive terminal of the processing battery cell so as to be in contact with the electrode terminals of the processing battery cell.
- the formation positions of the (+) die terminals 513, 523, 613, 623 and the (-) die terminals 514, 524, 614, and 624 are located at electrode terminals of the processing battery cell to be mounted. It depends on the relationship.
- the curing die 500 may include a first die ( In 510, (+) die terminal 513 and (-) die terminal 514 are respectively formed on one side end outer surface of the indentation portion 511 and the other end outer surface opposite to the one end outer surface, respectively,
- a positive die terminal 523 and a negative die terminal 524 are formed at positions corresponding to the same polarities when coupled with the first die 510, respectively. have.
- the curing die 600 in the first die 610, (+) die terminal Both (613) and (-) die terminals 614 are formed independently on the outer surface of one end of the indent, and correspond to the same polarities in contact with the first die 610 when coupled to the first die 610.
- (+) Die terminal 623 and (-) die terminal 624 are formed in the position which becomes, respectively.
- the hardening die 700 includes a first die 710 and a first die 710 in which an indentation 711 in which a battery cell is mounted is formed. And a second die 720 connected by a hinge 730, in which the periphery of the portion contacting the electrode terminal of the processing battery cell, that is, the electrode terminal of the processing battery cell protrudes, both sides of the indentation portion. Portions of the outer surfaces 715 and 725 based on the ends are made of a heat-resistant material such as plastic, and the other portions are made of a thermally conductive material as a whole.
- the first die 710 and the second die ( 711 includes hot wires 712 and 722, respectively.
- both (+) die terminals 713 and (-) die terminals 714 are independently formed on the outer surface of one end of the indentation portion so that the activation process is possible after the gel polymer electrolyte crosslinking reaction.
- the positive die terminal 723 and the negative die terminal 724 are respectively formed at positions corresponding to the same polarities when the first die 710 is coupled to the second die 720. It consists of a structure.
- the second die 720 of the hardening die 700 has a structure in which an additional indentation is formed at a position corresponding to the indentation of the first die, similarly to the first die.
- FIG. 1 to 7 schematically illustrate examples of hardening dies according to an embodiment of the present invention, but the present invention is not limited to this structure, and various modifications are possible in a similar range.
- FIG. 8 to 12 schematically illustrate a method of manufacturing a gel polymer battery cell using the curing dies 100, 500, and 600 according to an embodiment of the present invention.
- FIG. 8 and FIG. 9 schematically show a method using the curing die 100 of the present invention.
- an electrode assembly and a composition for forming a gel polymer electrolyte are included in a battery case, and electrode terminals 141 and 142 protrude in different directions from one end and the other end of the battery cell.
- the processing battery cell 140 is attached to the indentation portion 111 of the first die 110, and then the second connected to the first die 110 by the hinge 130.
- the processing battery cell 140 is sealed as shown in FIG. 9. Since the hardening die 100 does not include a heating wire therein, and thus cannot be heated by itself, the hardening die 100 in which the battery cell 140 for processing is sealed is placed in an oven and the temperature in the oven is adjusted.
- a battery cell can be manufactured by gelatinizing the composition for gel polymer electrolyte formation by a crosslinking reaction.
- FIGS. 10 to 12 use a curing die 500 that includes a heating wire that enables self heating of the curing die and die terminals that continuously enable the gel polymer electrolyte until the activation process.
- a method of producing a gel polymer battery cell is schematically illustrated.
- electrode terminals 541 and 542 are processed battery cells protruding from one end and the other end of the battery cell in different directions.
- 540 is prepared, and the positive electrode terminal 541 of the processing battery cell 540 contacts the positive die terminal 513 of the first die 510 at the indentation portion 511 of the first die 510.
- the negative electrode terminal 542 of the processing battery cell 540 is mounted in contact with the negative die terminal 514 of the first die 510.
- the unsealed portion 543 extending from the side surface of the battery cell body in which the electrode terminals are not formed in the processing battery cell 540 is placed in the outward direction of the indentation portion 511.
- the second die 520 connected to the first die 510 by the hinge 530, and the positive die terminal 523 of the second die are connected to the positive electrode terminal 541 of the battery cell 540 for processing.
- the negative die terminal 524 of the second die is turned upside down so as to contact the negative terminal 542 of the processing battery cell 540, and then coupled to the first die 510. 540 is sealed.
- the unsealed portion 543 of the processing battery cell 540 is placed outside the indentation portion 511 of the first die 510, the first die 510 and the second die 520 are removed.
- the unsealed portion 543 may be kept sealed by the first die 510 and the second die 520, and the gel polymer electrolyte forming composition may be formed from an accommodating portion of the battery case in which the electrode assembly is incorporated. It can be prevented from flowing out to the sealing portion, there is no problem that the sealing strength is weakened during subsequent resealing.
- the processing battery cell 540 is connected to a temperature control device for passing a current to the heating wires (512, 522) of the first die and the second die of the hardening die 500 sealed 30 to 30 degrees Celsius
- the gel polymer electrolyte is formed by heating the gel polymer electrolyte, and when the gel polymer electrolyte is formed, the die terminals 513, 514, 523, and 524 of the first die 510 and the second die 520 are charged and discharged. Connect the device to perform the activation process.
- the crosslinking reaction of the composition for forming the gel polymer electrolyte occurs in a fixed mold, so that the gel polymer battery cell having a uniform appearance can be manufactured and the activation process can be performed. Since it can be carried out continuously, it is possible to simplify the process.
- the curing die according to the present invention has a structure in which a processing battery cell containing a composition for forming a gel polymer electrolyte can be mounted therein, and thus the distribution in the battery case of the composition during crosslinking reaction. Not only can the gel polymer battery cell be uniform in appearance, but the composition does not flow into the unsealed portion of the battery case, so that the electrolyte solution is not cured at the unsealed portion. ) When the sealing strength is weakened, there is an effect that can be solved.
- the curing die according to the present invention by including a heating wire in the curing die itself, allowing the self heating, it is possible to gel the composition more simply without the need of storing separately in the oven. .
- the hardening die according to the present invention includes die terminals in contact with the electrode terminals of the processing battery cell in the hardening die itself, so that charging and discharging can be performed along with the activation process, thereby simplifying the process. There is also an effect that can be done.
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Abstract
Description
Claims (23)
- 겔 폴리머 전해질의 제조를 위한 경화(curing)용 다이로서,전지케이스의 내부에 전극조립체 및 겔 폴리머 전해질 형성용 조성물을 포함하는 가공용 전지셀이 장착되는 만입부가 형성되어 있는 제 1 다이; 및상기 만입부에 장착된 가공용 전지셀을 밀폐하기 위해 제 1 다이에 결합되는 제 2 다이;를 포함하는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 있어서, 상기 제 1 다이 및 제 2 다이 중 적어도 하나는 그 일부 또는 전부가 열전도성 소재로 이루어지는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 있어서, 상기 제 1 다이의 만입부는 그 일부 또는 전부가 열전도성 소재로 이루어져 있는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 있어서, 상기 제 2 다이 중에서 제 1 다이의 만입부에 대면하는 부분의 일부 또는 전부는 열전도성 소재로 이루어져 있는 것을 특징으로 하는 경화용 다이.
- 제 2 항에 있어서, 상기 제 1 다이 및 제 2 다이 중의 적어도 하나는 온도 조절 장치와 연결되어 있는 열선을 포함하는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 있어서, 상기 제 1 다이 및 제 2 다이는, 가공용 전지셀의 전극 단자들에 접촉하는 위치에, 도전성 소재로 이루어진 다이 단자들을 각각 포함하고, 상기 다이 단자들은 외부의 충방전 장치와 연결되는 것을 특징으로 하는 경화용 다이.
- 제 6 항에 있어서, 상기 제 1 다이에 형성되어 있는 다이 단자들과 상기 제 2 다이에 형성되어 있는 다이 단자들은, 제 1 다이와 제 2 다이가 결합되었을 때 동일한 극성끼리 접촉하도록 대응되는 위치에 형성되어 있는 것을 특징으로 하는 경화용 다이.
- 제 6 항에 있어서, 상기 다이 단자들은, 가공용 전지셀의 양극 단자와 접촉하는 (+) 다이 단자, 및 가공용 전지셀의 음극 단자와 접촉하는 (-) 다이 단자를 포함하는 것을 특징으로 하는 경화용 다이.
- 제 8 항에 있어서, 제 1 다이에서, (+) 다이 단자와 (-) 다이 단자는 만입부의 일측 단부 외면에 독립적으로 형성되어 있는 것을 특징으로 하는 경화용 다이.
- 제 8 항에 있어서, 제 1 다이에서, (+) 다이 단자와 (-) 다이 단자는 만입부의 일측 단부 외면과 상기 일측 단부 외면에 대향하는 타측 단부 외면에 각각 형성되어 있는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 있어서, 상기 제 2 다이에도 제 1 다이의 만입부에 대응하는 위치에 추가적인 만입부가 형성되어 있는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 있어서, 상기 제 2 다이는 만입부 없이 평평한 구조로 이루어져 있는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 있어서, 상기 제 1 다이와 제 2 다이는 경첩에 의해 일측 단부들이 상호 연결되어 있는 것을 특징으로 하는 경화용 다이.
- 제 1 항에 따른 경화용 다이를 사용하여 겔 폴리머 전지셀을 제조하는 방법으로서,(i) 전지케이스의 내부에 전극조립체 및 겔 폴리머 전해질 형성용 조성물을 포함하는 가공용 전지셀을 준비하는 과정;(ii) 상기 가공용 전지셀을 경화용 다이의 만입부에 장착한 후 밀폐시키는 과정;(iii) 상기 경화용 다이를 조절하여, 전지케이스 내의 겔 폴리머 전해질 형성용 조성물을 가교 반응에 의해 겔화시키는 과정;을 포함하는 것을 특징으로 하는 겔 폴리머 전지셀 제조방법.
- 제 14 항에 있어서, 상기 과정(iii)에서, 상기 가공용 전지셀이 장착된 경화용 다이를 오븐에 넣고 오븐 내의 온도를 조절하거나, 상기 경화용 다이의 열선에 전류를 인가하여 다이를 가열시켜, 겔 폴리머 전해질 형성용 조성물을 겔화시키는 것을 특징으로 하는 겔 폴리머 전지셀 제조방법.
- 제 14 항에 있어서, 상기 가교 반응을 위한 온도는 섭씨 30 내지 100도인 것을 특징으로 하는 겔 폴리머 전지셀 제조방법.
- 제 14 항에 있어서,(iv) 상기 경화용 다이의 다이 단자들을 충방전 장치에 연결하여, 가공용 전지셀의 활성화 공정을 수행하는 과정;을 더 포함하는 것을 특징으로 하는 겔 폴리머 전지셀 제조방법.
- 제 14 항에 있어서, 상기 과정(i)에서의 가공용 전지셀은 일측 부위에 미실링부를 포함하고 있는 것을 특징으로 하는 겔 폴리머 전지셀 제조방법.
- 제 18 항에 있어서, 상기 가공용 전지셀의 미실링부는 전극 단자들이 형성되어 있지 않은 전지셀 본체의 측면으로부터 연장되어 있고, 만입부의 외측에서 제 1 다이와 제 2 다이에 의해 밀봉 상태를 유지하는 것을 특징으로 하는 겔 폴리머 전지셀 제조방법.
- 제 14 항에 있어서, 상기 겔 폴리머 전해질 형성용 조성물은, 전해액 용매, 리튬염, 반응성 단량체 또는 올리고머, 및 개시제를 포함하는 것을 특징으로 하는 겔 폴리머 전지셀 제조방법.
- 제 14 항에 따른 방법으로 제조된 것을 특징으로 하는 겔 폴리머 전지셀.
- 제 21 항에 따른 겔 폴리머 전지셀을 단위전지로 하나 이상 포함하고 있는 것을 특징으로 하는 전지팩.
- 제 22 항에 따른 전지팩을 포함하는 것을 특징으로 하는 디바이스.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2018506582A JP6727621B2 (ja) | 2015-11-12 | 2016-11-09 | ゲルポリマー電解質の製造のための硬化用ダイおよびこれを用いたゲルポリマー電池セルの製造方法 |
US15/754,174 US11063294B2 (en) | 2015-11-12 | 2016-11-09 | Curing die for manufacturing gel polymer electrolyte, and method for manufacturing gel polymer battery cell by using same |
EP16864544.8A EP3327852B1 (en) | 2015-11-12 | 2016-11-09 | Curing die for manufacturing gel polymer electrolyte, and method for manufacturing gel polymer battery cell by using same |
PL16864544T PL3327852T3 (pl) | 2015-11-12 | 2016-11-09 | Matryca do utwardzania do wytwarzania żelowego elektrolitu polimerowego oraz sposób wytwarzania żelowo-polimerowego ogniwa akumulatorowego z jej użyciem |
CN201680051013.9A CN108140884B (zh) | 2015-11-12 | 2016-11-09 | 用于制造凝胶聚合物电解质的固化模具及通过使用其制造凝胶聚合物电池单体的方法 |
Applications Claiming Priority (2)
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KR102304737B1 (ko) * | 2018-05-31 | 2021-09-24 | 주식회사 엘지에너지솔루션 | 리튬 이차 전지 제조방법 |
KR20220161080A (ko) * | 2021-05-28 | 2022-12-06 | 주식회사 엘지에너지솔루션 | 겔 폴리머 전해질 이차전지의 제조방법 및 이에 의해 제조된 겔 폴리머 전해질 이차전지 |
WO2023075574A1 (ko) * | 2021-11-01 | 2023-05-04 | 주식회사 엘지에너지솔루션 | 겔 폴리머 전해질 이차전지의 제조방법 및 이에 의해 제조된 겔 폴리머 전해질 이차전지 |
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- 2016-11-09 EP EP16864544.8A patent/EP3327852B1/en active Active
- 2016-11-09 WO PCT/KR2016/012838 patent/WO2017082618A1/ko active Application Filing
- 2016-11-09 PL PL16864544T patent/PL3327852T3/pl unknown
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KR102013914B1 (ko) | 2019-08-23 |
CN108140884B (zh) | 2021-07-20 |
PL3327852T3 (pl) | 2020-02-28 |
KR20170055644A (ko) | 2017-05-22 |
JP2018527706A (ja) | 2018-09-20 |
CN108140884A (zh) | 2018-06-08 |
JP6727621B2 (ja) | 2020-07-22 |
EP3327852A4 (en) | 2018-05-30 |
US11063294B2 (en) | 2021-07-13 |
US20180254522A1 (en) | 2018-09-06 |
EP3327852A1 (en) | 2018-05-30 |
EP3327852B1 (en) | 2019-10-30 |
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