WO2022220526A1 - 전극 및 전극의 제조 방법 - Google Patents
전극 및 전극의 제조 방법 Download PDFInfo
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- WO2022220526A1 WO2022220526A1 PCT/KR2022/005240 KR2022005240W WO2022220526A1 WO 2022220526 A1 WO2022220526 A1 WO 2022220526A1 KR 2022005240 W KR2022005240 W KR 2022005240W WO 2022220526 A1 WO2022220526 A1 WO 2022220526A1
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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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
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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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
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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
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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
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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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
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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
-
- 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
- H01M4/04—Processes of manufacture in general
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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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
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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
- H01M4/139—Processes of manufacture
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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
- H01M4/64—Carriers or collectors
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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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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 an electrode and a method for manufacturing an electrode, and relates to an electrode and a method for manufacturing an electrode capable of preventing bending of the electrode active material coating, or electrode active material detachment or cracking from occurring in the electrode .
- Secondary batteries unlike primary batteries, are rechargeable, and have been widely researched and developed in recent years due to their small size and large capacity. These secondary batteries are manufactured in the form of a pack in which one battery cell is packaged or in the form of a pack in which dozens of battery cells are connected, and are widely used as power sources for driving motors of mobile phones, notebook computers, and electric vehicles.
- the electrode 10 of the secondary battery is manufactured by coating (coating) the electrode active material 12 on a metal substrate (metal current collector) 11 (see FIG. 1 ).
- FIG. 1 is a side view showing a state in which a conventional electrode is manufactured and then wound on a roll.
- FIG. 2 is a cross-sectional view illustrating a state in which an electrode is unwrapped from the roll manufactured in FIG. 1 and cut with a cutter in order to use the electrode by implementing it in a specific shape.
- the electrode 10 coated with the electrode active material 12 is wound with a (electrode) roll 30 as shown in FIG. 1 because it must be transported or stored until used.
- a (electrode) roll 30 as shown in FIG. 1 because it must be transported or stored until used.
- the electrode is unwound from the (electrode) roll, and the electrode is cut with a cutter 50 as shown in FIG. 2 to make an electrode of a desired size.
- the electrode 10 coated with the electrode active material 12 is wound on a roll 30, and bending of the electrode active material coating in the winding portion of the roll 30, or electrode active material detachment A phenomenon or a crack phenomenon occurred. That is, when the electrode 10 is bent, tension is applied to the electrode active material 12 , so that it detaches or cracks occur.
- the electrode active material is detached during the cutting process. That is, since the cutting blade 51 of the cutter 50 has a thickness as shown in FIG. 2 , when digging into the electrode active material 12 to cut the electrode 10 , the tension in the electrode active material 12 . is applied, and thus the electrode active material 12 is desorbed.
- the conventional electrode manufacturing method has a problem in that desorption of the electrode active material inevitably occurs during the manufacturing process.
- the present invention has been devised to solve the above problems, and an object of the present invention is to prevent the bending phenomenon of the electrode active material coating on the electrode, or the electrode active material detachment or cracking from occurring.
- the electrode according to the present invention includes a base current collector made of a metal material, and a unit electrode attached to the base current collector, and the unit electrode is a unit made of a metal material and having a smaller size than the base current collector. It includes a current collector, and an electrode active material applied to one surface of the unit current collector.
- a plurality of unit electrodes may be provided, and each unit electrode may have a block shape.
- the base current collector may have a plate shape.
- the unit current collector may have a plate shape, and the electrode active material may be coated on the entire upper surface of the unit current collector.
- the plurality of unit electrodes may be arranged to form columns and rows on one surface of the base current collector.
- a shape made by arranging a plurality of unit electrodes may have a shape corresponding to a shape of the base current collector.
- It may further include an electrode tab extending from one end of the base current collector.
- the method of manufacturing an electrode according to the present invention includes a unit current collector manufacturing step of manufacturing a unit current collector by cutting a current collector substrate made of a metal material to have a predetermined area and shape based on a plan view, one surface of the unit current collector It includes a manufacturing step of making a unit electrode by applying an electrode active material to the unit electrode, and a unit electrode attaching step of attaching the unit electrode to a base current collector made of a metal material and having a size larger than that of the unit current collector.
- a plurality of unit electrodes having a block shape may be attached to the base current collector.
- the plurality of unit electrodes may be arranged to form columns and rows on one surface of the base current collector.
- a plurality of unit electrodes may be arranged so that a shape made by arranging the plurality of unit electrodes corresponds to a shape of the base current collector.
- a unit electrode storage step of stacking and storing the unit electrode may be further included.
- the method may further include a unit electrode inspection step of inspecting whether the unit electrode is defective and discarding the defective unit electrode between the unit electrode manufacturing step and the unit electrode storage step.
- An electrode assembly including an electrode according to the present invention relates to an electrode assembly formed by alternately stacking electrodes and separators, wherein the electrode includes a base current collector made of a metal material, and a unit electrode attached to the base current collector.
- the unit electrode includes a unit current collector made of a metallic material and having a size smaller than that of the base current collector, and an electrode active material applied to one surface of the unit current collector.
- the electrode and the method for manufacturing an electrode according to the present invention can prevent the bending phenomenon of the electrode active material coating on the electrode, or the electrode active material detachment phenomenon or cracking from occurring.
- FIG. 1 is a side view showing a state in which a conventional electrode is manufactured and then wound on a roll.
- FIG. 2 is a cross-sectional view illustrating a state in which an electrode is unwrapped from the roll manufactured in FIG. 1 and cut with a cutter in order to use the electrode by implementing it in a specific shape.
- FIG. 3 is a view showing an electrode according to Embodiment 1 of the present invention.
- FIG. 4 is a plan view illustrating a state in which a unit electrode of an electrode according to Embodiment 1 of the present invention is attached to a base current collector having various sizes and shapes.
- FIG. 5 is a diagram showing the main steps in the method of manufacturing an electrode according to Embodiment 2 of the present invention.
- Example 6 is a conceptual diagram illustrating some steps in the method of manufacturing an electrode according to Example 2 of the present invention.
- Example 7 is a diagram illustrating a unit electrode inspection step in the method of manufacturing an electrode according to Example 2 of the present invention.
- FIG. 3 is a view showing an electrode according to Embodiment 1 of the present invention.
- 4 is a plan view illustrating a state in which a unit electrode of an electrode according to Embodiment 1 of the present invention is attached to a base current collector having various sizes and shapes.
- the electrode 100 according to Embodiment 1 of the present invention includes a base current collector 110 and a unit electrode 120 .
- the base electrode 100 is a current collector made of a metal material, and forms the lowest base surface of the electrode 100 .
- the unit electrode 120 may be attached to the base current collector 110 .
- the unit electrode 120 is made of a metal material, and includes a unit current collector 121 having a size smaller than that of the base current collector 110 and an electrode active material 122 applied to one surface of the unit current collector 121 . It could be Here, the unit current collector 121 may also have a plate shape.
- the base current collector 110 may also have a plate shape.
- a plurality of unit electrodes 120 may be provided. In addition, each unit electrode 120 may have a block shape.
- FIG. 3B a state in which one unit electrode 120 is attached to one base current collector 110 is illustrated.
- a plurality of unit electrodes 120 are attached to the base current collector 110 to form the electrode 100, but for convenience of understanding, FIG. 3(b) ) shows a state in which only one unit electrode 120 is attached to the base current collector 110 .
- FIG. 3(a) is a side view showing the side of the electrode 100 from the position where the unit electrode 120 shown in FIG. 3(b) is attached.
- the base current collector 110 is disposed at the bottom, and the unit electrode 120 is attached thereon (in FIG. 3A , the unit electrode 120 is indicated by a dotted line box). becoming).
- the unit electrode 120 may include a unit current collector 121 disposed below and an electrode active material 122 applied on an upper surface of the unit current collector.
- the electrode active material 122 may be coated on the entire upper surface of the unit current collector 121 .
- the electrode active material 122 may be applied to the upper surface of the unit current collector 121 , and the lower surface of the unit current collector 121 may be attached to the base current collector.
- the electrode 100 When the electrode 100 is manufactured in this way, it is possible to prevent a bending phenomenon of the coating of the electrode active material 122 on the electrode 100, or a detachment or cracking phenomenon of the electrode active material 122 from occurring. .
- the electrode coated with the electrode active material is wound on a roll, a bending phenomenon of the electrode active material coating in the winding portion of the roll, or a desorption phenomenon or cracking phenomenon of the electrode active material occurred, but this
- the electrode active material 122 is detached or the electrode active material 122 is detached because the bending tension does not act on the electrode active material 122 . No cracking occurs.
- the electrode 100 according to Embodiment 1 of the present invention may have a form in which a plurality of unit electrodes 120 are arranged to form columns and rows on one surface of the base current collector 110 .
- the shape made by arranging the plurality of unit electrodes 120 may be a shape corresponding to the shape of the base current collector 110 .
- the electrode 100 of various shapes and sizes can be easily manufactured. 4 shows an example in which three types of electrodes 100 are manufactured. As shown in FIG. 4 , even if the shapes of the electrodes 100 are different from each other, since they can be manufactured by attaching the same unit electrodes 120 to each other, more efficient electrode 100 manufacturing may be possible.
- the cutting process of the electrode 100 is performed after coating the electrode active material 122 , the detachment of the electrode active material 122 occurs in the cutting process, but in the present invention, all cutting is performed on the electrode active material This is done in the uncoated current collector state, and since the electrode cutting operation is not performed after the electrode active material 122 is coated, the electrode active material 122 detachment phenomenon in the cutting process can be prevented.
- the electrode 100 according to Embodiment 1 of the present invention may further include an electrode tab portion 111 extending from one end of the base current collector 110 for manufacturing convenience.
- the electrode tab part 111 is continuously formed on the current collector in this way, the process of attaching an additional electrode tab can be omitted, so that production efficiency can be further increased.
- 5 is a diagram showing the main steps in the method of manufacturing an electrode according to Embodiment 2 of the present invention.
- 6 is a conceptual diagram illustrating some steps in the method of manufacturing an electrode according to Example 2 of the present invention.
- 7 is a diagram illustrating a unit electrode inspection step in the method of manufacturing an electrode according to Example 2 of the present invention.
- Example 2 of the present invention is different from Example 1 in that it relates to a manufacturing method for manufacturing the electrode according to Example 1.
- the method of manufacturing the electrode 100 according to Embodiment 2 of the present invention may include a unit current collector manufacturing step (S10), a unit electrode manufacturing step (S20), and a unit electrode attachment step (S30).
- S10 unit current collector manufacturing step
- S20 unit electrode manufacturing step
- S30 unit electrode attachment step
- the unit current collector manufacturing step ( S10 ) may be a step of manufacturing the unit current collector 121 by cutting a current collector substrate made of a metal material to have a predetermined area and shape based on a plan view.
- the size and shape of the unit current collector 121 may be determined according to the purpose and situation of the design. Mass production of the unit current collector 121 may be performed according to the size and shape of the unit current collector 121 once determined.
- the plurality of unit current collectors 121 made in this way may have the same shape and size.
- the unit current collector 121 may be formed in a square (or square) shape, and may also be formed in a thin plate shape.
- the unit electrode manufacturing step ( S20 ) may be a step of forming the unit electrode 120 by coating the electrode active material 122 on one surface of the unit current collector 121 . As shown in (b) of FIG. 6 , a plurality of unit current collectors 121 having the same shape are transferred on the transfer belt B while coating the electrode active material 122 thereon.
- the step of attaching the unit electrode may be a step of attaching the previously made unit electrode 120 on the base current collector 110 , which is made of a metal material and has a size larger than that of the unit current collector 121 ( see Fig. 4).
- the unit electrode attachment step S30 a plurality of unit electrodes 120 having a block shape may be attached to the base current collector 110 .
- the attachment (or adhesion) between the base current collector 110 and the unit electrode 120 may be performed by a vaporized foil actuator welding (VFAW) method.
- VFAW vaporized foil actuator welding
- the plurality of unit electrodes 120 may be arranged to form columns and rows on one surface of the base current collector 110 .
- the shape made by arranging the plurality of unit electrodes 120 may be a shape corresponding to the shape of the base current collector 110 .
- a unit electrode storage step ( S25 ) of stacking and storing the unit electrodes 120 may be further included.
- . 6( d ) shows a method in which the unit electrodes 120 are stacked and stored in the unit electrode storage step S25 .
- the defective unit electrode 120 may further include a disposing unit electrode inspection step (S23).
- the unit electrode inspection step S23 may be performed on the unit electrode 120 made in the unit electrode manufacturing step S20 .
- a defect inspection of the electrode 100 may be performed immediately after the unit electrode manufacturing step S20 is completed.
- only one unit electrode 120 determined to be defective may be disposed of.
- Example 3 of the present invention is different from Example 1 in that it relates to an electrode assembly manufactured using the electrode according to Example 1.
- Example 1 Contents common to Example 1 will be omitted as much as possible, and Example 3 will be described with a focus on differences. That is, it is self-evident that the content not described in the third embodiment may be regarded as the content of the first embodiment if necessary.
- the electrode assembly (not shown) according to Example 3 of the present invention may be an electrode assembly formed by alternately stacking separators on the electrode 100 manufactured in Example 1 .
- the electrode 100 includes a base current collector 110 made of a metal material, and a unit electrode 120 attached to the base current collector 110 . can do.
- the unit electrode 120 is made of a metallic material, the unit current collector 121 having a smaller size than the base current collector 110 , and the electrode active material 122 applied to one surface of the unit current collector 121 . ) may be included.
- FIG 4 shows an electrode 100 formed by attaching a plurality of unit electrodes 120 to a base current collector 110.
- the electrodes 100 are alternately stacked with a separator, according to Example 3 of the present invention.
- An electrode assembly may be manufactured.
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Abstract
Description
Claims (14)
- 금속 재질로 마련되는 베이스 집전체; 및상기 베이스 집전체 상에 부착되어 있는 단위 전극을 포함하고,상기 단위 전극은,금속 재질로 마련되고, 상기 베이스 집전체 보다 작은 크기를 가지는 단위 집전체; 및상기 단위 집전체의 일 표면에 도포되는 전극 활물질을 포함하는 것인 전극.
- 청구항 1에 있어서,상기 단위 전극은 복수 개로 마련되며,각각의 단위 전극은 블록 형태를 가지는 것을 특징으로 하는 전극.
- 청구항 1에 있어서,상기 베이스 집전체는 플레이트 형상을 가지는 것을 특징으로 하는 전극.
- 청구항 1에 있어서,상기 단위 집전체는 플레이트 형상을 가지며,상기 전극 활물질은 상기 단위 집전체 상부 표면 전체에 코팅되어 있는 것을 특징으로 하는 전극.
- 청구항 2에 있어서,상기 복수의 단위 전극은 상기 베이스 집전체의 일면 상에서 열과 행을 이루도록 배열된 형태를 가지는 것을 특징으로 하는 전극.
- 청구항 2에 있어서,상기 복수의 단위 전극이 배열되어 만드는 형태는 상기 베이스 집전체의 형태와 대응하는 형태인 것을 특징으로 하는 전극.
- 청구항 1에 있어서,상기 베이스 집전체의 일단에서 연장하는 전극 탭부를 더 포함하는 것을 특징으로 하는 전극.
- 금속 재질로 마련되는 집전체 기재를 평면도를 기준으로 일정한 넓이와 형상을 가지도록 컷팅하여 단위 집전체를 제조하는 단위 집전체 제조 단계(S10);상기 단위 집전체의 일 표면에 전극 활물질을 도포하여 단위 전극을 만드는 단위 전극 제조 단계(S20); 및금속 재질로 마련되고, 상기 단위 집전체 보다 큰 크기를 가지는 베이스 집전체 상에 상기 단위 전극을 부착하는 단위 전극 부착 단계(S30);를 포함하는 전극의 제조방법.
- 청구항 8에 있어서,상기 단위 전극 부착 단계에서,상기 베이스 집전체 상에 블록 형태를 가지는 상기 단위 전극이 복수 개 부착되는 것을 특징으로 하는 포함하는 전극의 제조방법.
- 청구항 9에 있어서,상기 단위 전극 부착 단계에서,상기 복수의 단위 전극은 상기 베이스 집전체의 일면 상에서 열과 행을 이루도록 배열되는 것을 특징으로 하는 포함하는 전극의 제조방법.
- 청구항 9에 있어서,상기 단위 전극 부착 단계에서,상기 복수의 단위 전극이 배열되어 만드는 형태가 상기 베이스 집전체의 형태와 대응되도록 상기 복수의 단위 전극이 배열되는 것을 특징으로 하는 포함하는 전극의 제조방법.
- 청구항 8에 있어서,상기 단위 전극 제조 단계(S20)와 상기 단위 전극 부착 단계(S30)의 사이에,상기 단위 전극을 적층하여 보관하는 단위 전극 보관 단계(S25)를 더 포함하는 것을 특징으로 하는 전극의 제조방법.
- 청구항 12에 있어서,상기 단위 전극 제조 단계(S20)와 상기 단위 전극 보관 단계(S25)의 사이에,상기 단위 전극의 불량 여부를 검사하여 불량 단위 전극은 폐기하는 단위 전극 검사 단계(S23)를 더 포함하는 것을 특징으로 하는 전극의 제조방법.
- 전극 및 분리막이 교대로 적층되어 형성되는 전극조립체에 있어서,상기 전극은,금속 재질로 마련되는 베이스 집전체; 및상기 베이스 집전체 상에 부착되어 있는 단위 전극을 포함하고,상기 단위 전극은,금속 재질로 마련되고, 상기 베이스 집전체 보다 작은 크기를 가지는 단위 집전체; 및상기 단위 집전체의 일 표면에 도포되는 전극 활물질을 포함하는 것인 전극조립체.
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| EP22788382.4A EP4220747B1 (en) | 2021-04-15 | 2022-04-12 | Electrode and method for manufacturing the same |
| US18/035,368 US20240006616A1 (en) | 2021-04-15 | 2022-04-12 | Electrode and Method for Manufacturing the Same |
| ES22788382T ES3054405T3 (en) | 2021-04-15 | 2022-04-12 | Electrode and method for manufacturing the same |
| CN202280007219.7A CN116368632B (zh) | 2021-04-15 | 2022-04-12 | 电极及制造电极的方法 |
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| KR1020220014452A KR102954923B1 (ko) | 2021-04-15 | 2022-02-03 | 전극 및 전극의 제조 방법 |
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| EP (1) | EP4220747B1 (ko) |
| CN (1) | CN116368632B (ko) |
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| US20240006616A1 (en) * | 2021-04-15 | 2024-01-04 | Lg Energy Solution, Ltd. | Electrode and Method for Manufacturing the Same |
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- 2022-04-12 EP EP22788382.4A patent/EP4220747B1/en active Active
- 2022-04-12 CN CN202280007219.7A patent/CN116368632B/zh active Active
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| Publication number | Publication date |
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| US20240006616A1 (en) | 2024-01-04 |
| EP4220747A4 (en) | 2024-07-24 |
| CN116368632B (zh) | 2026-02-27 |
| ES3054405T3 (en) | 2026-02-03 |
| EP4220747B1 (en) | 2025-10-22 |
| EP4220747A1 (en) | 2023-08-02 |
| CN116368632A (zh) | 2023-06-30 |
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