WO2019124599A1 - Redox flow battery - Google Patents

Redox flow battery Download PDF

Info

Publication number
WO2019124599A1
WO2019124599A1 PCT/KR2017/015339 KR2017015339W WO2019124599A1 WO 2019124599 A1 WO2019124599 A1 WO 2019124599A1 KR 2017015339 W KR2017015339 W KR 2017015339W WO 2019124599 A1 WO2019124599 A1 WO 2019124599A1
Authority
WO
WIPO (PCT)
Prior art keywords
current collecting
plate
cell
redox flow
separator
Prior art date
Application number
PCT/KR2017/015339
Other languages
French (fr)
Korean (ko)
Inventor
김부기
김기현
박상현
최담담
조범희
최강영
Original Assignee
스탠다드에너지(주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 스탠다드에너지(주) filed Critical 스탠다드에너지(주)
Publication of WO2019124599A1 publication Critical patent/WO2019124599A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H01M8/184—Regeneration by electrochemical means
    • H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2459—Comprising electrode layers with interposed electrolyte compartment with possible electrolyte supply or circulation
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present invention relates to a redox flow cell, and more particularly, to a redox flow battery capable of solving a structural problem that occurs when a redox flow cell can be used in a parallel manner.
  • ESS energy storage system
  • the energy storage system is a system that supplies electric power to devices or systems that require electric power after storing electric power produced by thermal power, hydroelectric power, nuclear power, solar power, wind power, tidal power, cogeneration power,
  • the energy storage system is composed of a storage method using a secondary battery such as a LiB battery NaS battery, a flow battery (FB) and a super capacitor, and a non-battery storage method.
  • a secondary battery such as a LiB battery NaS battery, a flow battery (FB) and a super capacitor
  • a positive electrode electrolyte and a negative electrode electrolyte are circulated on both sides of a membrane to perform ion exchange, and in this process, electrons move to charge and discharge.
  • Such a flow cell is known to be most suitable for an energy storage system because it can be manufactured as a KW-MW middle-sized system with a longer life than a conventional secondary battery.
  • the redox flow battery is a synthesis of the words reduction, oxidation, and flow. It stores the electrolyte in a tank and feeds the electrolyte to the area called the cell to charge / discharge the battery. it means.
  • redox flow cells is disclosed in Japanese Patent Application Laid-Open No. 10-1176126, wherein a bipolar plate and a positive electrode membrane negative electrode are formed of one cell, and an electrolyte injected into one side in a structure in which a plurality of cells are stacked in series, And a Teflon-Zirconia short-circuit prevention pipe is provided in the passage hole of the bipolar plate having different polarities when passing therethrough, thereby preventing the electrolyte from having different polarities from contacting the bipolar plate and preventing the efficiency from being lowered by short- A redox flow cell structure is shown.
  • Patent Document 1 Korean Patent Laid-Open No. 2011-0116624 (name: redox flow battery structure, published on October 26, 2011)
  • the present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a redox flow cell capable of connecting a cell, a charger and a discharger in parallel.
  • Another object of the present invention is to provide a redox flow cell having a novel structure capable of solving the problem of inefficiency due to the volume of the redox flow cell being increased when a plurality of cells constituting the redox flow battery, a charging unit and a discharge unit are connected in parallel.
  • a method of incorporating a current collecting plate on a separator plate is provided to minimize the number of components constituting the redox flow cell.
  • the redox flow cell is a redox flow battery for circulating an electrolyte solution into a cell unit.
  • the redox flow battery includes a separation membrane 110 through which ions are passed, A plurality of cell unit bodies (100) arranged in a line and including a flow path frame (120) in which a flow path through which a positive electrode electrolyte solution and a negative electrode electrolyte pass, respectively; And a plurality of current collecting modules (200) disposed between the cell unit bodies (100) adjacent to each other at both edge ends of the cell unit units (100) arranged in a line and the cell unit units (100) Are arranged in a line so that the flow path frames (120) of the flow paths (120) contact with each other through the current collecting module (200).
  • the current collecting module 200 includes a separator plate 210 through which electric charges circulating through the two flow path frames 120 are prevented from mixing with each other and a current collecting plate 220 made of a conductive material, .
  • the current collecting module 200 includes two separator plates 210 stacked on the inner surface of the cell unit unit 100 located on one side and the cell unit unit 100 located on the other side, And a current collecting plate 200 disposed between the separating plates 210.
  • the plurality of first current collecting modules are disposed between the cell unit bodies 100 connected to each other with the same polarity, And a pair of second current collecting modules each composed of a separator plate 210 laminated on one side and an outermost side of the separator plate 210 and a collecting plate 200 laminated on the outside of each separator plate 210 .
  • the current collecting module 200 includes a current collecting module 200A in which the current collecting plate 220 is embedded on the separating plate 210 and one side of the current collecting plate 220 protrudes to the outside .
  • a positive electrode circuit part 310 connected in parallel to the current collecting module 200 which is an anode of the plurality of current collecting modules 200 and electrically connected to the charging part or the discharging part; And a circuit unit 300 composed of a current collecting module 200 connected in parallel and a cathode circuit unit 320 electrically connected to the charging unit or the discharging unit.
  • the present invention is characterized by further comprising a fixing portion (400) for pressing the current collecting module (200) located at the outermost position from both sides.
  • a pressing step S100 for pressing the both ends of the separating plate 210 with a fixing member whose positional displacement is limited, ;
  • a coupling step (S600) for pressing and fixing the collecting plate (220) located in the coupling groove, the central region of the separating plate (210) contracting the cooled separating plate (210) and widened to one side and the other side .
  • the fixing member closes the electrolyte flow passage L formed at the edge of the separator plate 210 in the pressing step S100.
  • the separation plate 210 is heated by a heat source having a temperature of 700 to 1500 degrees.
  • the heat source heats the separator plate 210 for 1 to 10 seconds.
  • the plurality of adjacent cell unit bodies constituting the redox flow cell are arranged so that the positive electrode and the positive electrode face each other, the negative electrode and the negative electrode face each other, There is an advantage that the number of collector plates necessary for connecting the live parts in parallel can be minimized.
  • the arrangement structure of the cells is improved, and at least two current collecting plates are required for each cell when the discharge part and the charging part are connected in parallel, thereby solving the problem that the volume of the redox flow cell is increased.
  • the number of components for constituting the redox flow battery is minimized, thereby reducing the production cost of the redox flow battery and allowing more cell unit bodies to be located in a limited space, Can be maximized.
  • FIG. 1 is a conceptual view of a redox flow cell of the present invention.
  • FIG. 2 is an exploded perspective view of a redox flow cell according to the present invention (when the separator plate and the current collector plate are separately formed)
  • FIG. 3 is an exploded perspective view of a redox flow cell according to the present invention.
  • FIG. 4 is a perspective view showing a stack of cell unit bodies and current collecting modules assembled together in the redox flow cell of the present invention.
  • FIG 5 is a cross-sectional view taken along the line A-A of the current collecting module in which the current collecting plate is built in the separating plate.
  • FIG. 6 is a conceptual diagram showing a redox flow cell according to the present invention electrically connected to a target object.
  • FIG. 7 is a conceptual view showing a fixing unit for pressing a stack constituting the redox flow cell of the present invention.
  • FIG. 8 is a flowchart showing a method of incorporating a current collecting plate in a separating plate.
  • 9 to 13 are conceptual diagrams showing a method of incorporating a current collecting plate in a separating plate.
  • FIG. 1 is a schematic structural view for explaining a structure of a redox flow cell 1000 according to the present invention.
  • a redox flow cell according to the present invention comprises a separator 110 through which ions pass, a separator 110 disposed on both sides of the separator 110, and a flow path through which the positive electrode electrolyte and the negative electrode electrolyte pass, respectively
  • the cell unit bodies 100 are arranged in a line so that the same poles are in contact with each other through the current collecting module 200.
  • a plurality of cell unit bodies 100 and a plurality of the current collecting modules 200 are crossed with each other while a flow path frame 120 in which the same polarity electrolyte flows in opposition is connected to the current collecting module 200 Thereby forming one stack 1000A constituting the redox flow battery 1000.
  • the conventional redox flow battery has to sequentially stack the separator plate and the current collector plate on both sides of the cell,
  • a conventional redox flow cell requires a plurality of current collecting plates in comparison with a case where a stack including a plurality of cells, a separator plate, and a current collector plate is connected in series with the charging unit and the discharging unit,
  • the volume of the stack in which the plate and the current collecting plate are gathered becomes large and the number of cells that can be located in a limited space is reduced, resulting in a problem of a decrease in charge / discharge efficiency.
  • the electrolytic solution having the same polarity is circulated in the flow path frame 120 adjacent to each other as shown in FIG. 1, so that the flow path frame 120 is interposed between the adjacent flow path frames 120, And the current collecting module 200 in which the current collecting plates made of a conductive material are gathered can be disposed on the flow path frame 120 (120) constituting each cell unit body (100)
  • the present invention solves the problem of increasing the thickness of the stack, which occurs when the current collecting module 200 is individually disposed at each edge of the stack.
  • the reason that the electrolytic solution having the same polarity is introduced into the adjacent channel frames 120 is that in the case of the channel frame 120 located at the outermost one of the plurality of channel frames 120 constituting the stack, The electrolyte solution having the same polarity as that of the adjacent flow path frame 120 flows in the case of the flow path frame 120 not positioned at the outermost periphery.
  • the anode electrolyte tank 10 storing the anode electrolyte and the cathode electrolyte tank 20 storing the cathode electrolyte are collectively referred to as collectors
  • the electrolytic solution having the same polarity is circulated in the flow path frame 120 constituting the different cell unit bodies 100 disposed closely to both sides of the module 200 so that the connection portions of the adjacent cell unit bodies 100 have the same polarity will be.
  • FIG 2 is an exploded perspective view of one cell S constituting a stack of the redox flow cell 1000 of the present invention.
  • the cell S is disposed at the center, and includes a separation membrane 110 such as a membrane having a property of passing ions but not passing an electrolyte, And an electrolyte solution flowing through the flow path frame 120 is discharged to the outside of the flow path frame 120.
  • the flow path frame 120 includes a flow path frame 120 in which a flow path through which electrolyte flows, And a current collecting plate 220 stacked on both sides of the separating plate 210.
  • the current collecting plate 220 may be formed of a conductive material.
  • the edges of the current collector plate 220, the separator plate 210, the flow path frame 120, and the separator 110 have a positive electrode electrolyte inflow passage through which a positive-polarity electrolyte flows, A cathode electrolyte discharge passage through which the electrolyte is discharged, a cathode electrolyte inlet passage through which the cathode electrolyte flows, and a cathode electrolyte discharge passage through which the cathode electrolyte is discharged, and the electrolyte introduced through the cathode electrolyte inflow passage passes through the separator
  • the electrolyte solution flowing into the channel frame 110 is discharged through the cathode electrolyte discharge passage after being contacted with one surface of the separation membrane 110 and the electrolyte solution flowing through the cathode electrolyte solution inlet passage is separated from the separation membrane 110, Flows into the flow path frame 120 stacked on the other surface of the separator 110 and comes into contact with the other surface
  • the current collecting module 200 shown in FIG. 1 includes a separator plate contacting the flow path frame 120 located at one side, and a separator disposed at the other side
  • the cell unit 100 is composed of a separator plate 210 in contact with the flow path frame 120 and a collecting plate 220 disposed between the separator plates 210 disposed on one side and the other side, A separator plate 210 disposed on the other side of the outermost one of the plurality of cell unit bodies 100 and a collecting plate 200 stacked on the outside of each separator plate 210 And a pair of second current collecting modules which are connected to each other.
  • the second current collector module is placed in the cell unit 100 located at the outermost position, The first current collecting module is disposed between the cell units 100 facing the same polarity to minimize the volume of the stack used in the redox flow cell.
  • the collector plate 220 of the redox flow cell 1000 according to the present invention is embedded in the separator plate 210 to form a third current collector module 200A,
  • the cell S has a separation membrane 110 having a property of passing the electrolyte but not allowing the electrolyte to pass therethrough, And a third current collecting module 200A stacked on both side surfaces of the flow path frame 120.
  • the current collecting module 200A includes a first current collecting module 200A and a second current collecting module 200B.
  • the current collecting plate 220 is embedded in the separator 210 to minimize the number of components constituting the cell S, and further, the cell S is used as shown in FIG. 4
  • the third collecting module 200A is connected to both ends of the plurality of cell unit bodies 100 and a connecting portion where the respective cell unit bodies 100 are connected to each other when the stack 1000A used in the redox flow cell is formed, It is possible to minimize the thickness of the redox flow cell and to maximize the number of the cell unit bodies 100 that can be positioned in a limited space.
  • the current collecting plate 220 is embedded in the separating plate 210, and the electrolytic solution passing through the electrolytic solution passing passage is directly contacted with the current collecting plate It is possible to reduce the thickness of the stack constituting the redox flow cell.
  • the current collecting plate 220 is made of a copper material, the current collecting plate 220 is oxidized when it is in direct contact with the electrolytic solution, resulting in a problem that the durability of the apparatus is inferior.
  • An O-ring is provided on the electrolyte flow passage formed in the current collecting plate 220 to limit the direct contact of the electrolyte with the current collecting plate 220.
  • the current collecting plate 220 may be formed in the separating plate 210 so that the current collecting plate 220 is formed on the separating plate 210, This problem is solved by embedding the electrolytic solution so as not to come in contact with the passage through which the electrolytic solution passes.
  • the redox flow battery 1000 includes a plurality of current collecting modules 200 connected in parallel to a plurality of current collecting modules 200, And a cathode circuit unit 320 connected in parallel to the current collecting module 200 which is a negative one of the plurality of current collecting modules 200 and electrically connected to the charging unit or the discharging unit.
  • a plurality of the current collecting modules 200 in contact with the flow path frame 120 through which the positive electrode electrolyte circulates are connected to the positive electrode circuit unit 310 and a plurality of the plurality of current collecting modules 200 contacting the flow path frame 120 through which the negative electrode electrolyte circulates.
  • the anode circuit part 310 and the cathode circuit part 320 are connected to the object 30 such as the charging part or the discharging part so that they can be charged and discharged after the cathode circuit part 320 is connected to the current collecting module 200 .
  • the conventional redox flow cell has a stacked structure in which a plurality of cells are stacked and a target object is connected in parallel, a channel frame constituting each cell and in which a positive electrode electrolyte circulates, and a negative electrode Since the current collecting plates are arranged at the opposite ends of each cell so that the cells of the stack constituting the stack are connected in parallel to each other,
  • the redox flow cell 1000 of the present invention constitutes the cell unit 100 and the flow field frame 120 having the same polarity as that of the collector unit 100 is connected to the collector plate
  • the current collecting plate 220 is disposed between the cell unit 100 and the cell unit 100 and between the cell unit 100 and the cell unit 100, It is sufficient if the number of the current collectors 220 required is N + 1 when the number of the cell unit bodies constituting the stack is (N) in order to connect the cell unit body and the object in parallel. It is.
  • the redox flow cell 1000 according to the present invention may further include a fixing unit 400 for pressing the current collecting module 200 located at the outermost position from both sides as shown in FIG.
  • each constituent element constituting the cell unit body 100 and each constituent element constituting the current collecting module 200 can be arranged more closely to each other, so that the constituent elements of the cell unit body 100 Thereby preventing an electrolyte leakage accident.
  • the redox flow cell 1000 can incorporate the current collecting plate 220 in the separating plate 210 through the method shown in FIG. 8, and the current collecting plate 220 is attached to the separating plate 210
  • a pressing step S100 for pressing both ends of the separating plate 210 with a fixing member whose positional displacement is limited, a heating step S200 for heating a central region of the separating plate 210,
  • a coupling groove forming step S300 in which a central region of the plate 210 expands and extends to one side and the other side to form a coupling groove 211;
  • the both ends in the width direction of the separating plate 210 are fixed by the fixing member G so that both sides of the separating plate 210 in the width direction are expanded or moved And the electrolytic solution transfer passage L is closed.
  • the heating step S200 as shown in FIG. 10, the separator plate 210 is heated for 1 second to 10 seconds by a heat source having a temperature of 500 to 1500 degrees. 11, the central region of the separator plate 210 expands and opens upward and downward to form a coupling groove 211 at the center, as shown in FIG. 11, in the coupling groove forming step S300, The collecting plate 220 is inserted into the coupling groove as shown in FIG.
  • the separating plate 210 heated in the cooling step S500 is cooled,
  • By the central region of the separating plate 210 was formed a groove 211 which is fixedly pressed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Fuel Cell (AREA)

Abstract

The present invention relates to a redox flow battery and, more particularly, to a redox flow battery comprising: a separation membrane through which ions pass; a plurality of cell units, respectively deposited on both sides of the separation membrane, comprising a flow path frame in which flow paths, through which a catholyte and an anolyte respectively pass, are formed; and three or more current collecting modules arranged between both ends of the plurality of cell units and between the cell units that are adjacent to each other, wherein the cell units are arranged in a row such that the same poles thereof are in contact with one another through the current collecting modules, and thereby the volume of a battery may be minimized when redox flow batteries are configured in parallel.

Description

레독스 흐름전지Redox flow cell
본 발명은 레독스 흐름전지에 관한 것으로서, 더욱 상세하게는 레독스 흐름전지를 병렬방식으로 사용 가능할 경우 발생하는 구조적 문제를 해소 가능한, 레독스 흐름전지에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a redox flow cell, and more particularly, to a redox flow battery capable of solving a structural problem that occurs when a redox flow cell can be used in a parallel manner.
최근 에너지 저장 시스템(ESS : Energy storage system)의 개발이 활발히 진행되고 있는 가운데 충방전이 가능한 이차전지(Secondary battery)가 유력한 기술로 각광받고 있다.Recently, energy storage system (ESS) has been actively developed, and a secondary battery capable of charging and discharging is attracting attention as a powerful technology.
에너지 저장 시스템은 화력, 수력, 원자력, 태양광, 풍력, 및 조력, 열병합발전 등에 의하여 생산된 전력을 저장한 뒤에 전력이 필요한 장치나 계통에 전원을 공급하는 시스템이다.The energy storage system is a system that supplies electric power to devices or systems that require electric power after storing electric power produced by thermal power, hydroelectric power, nuclear power, solar power, wind power, tidal power, cogeneration power,
이를 위하여 에너지 저장 시스템은 LiB전지 NaS전지, 흐름전지(FB : Flow Battery), 수퍼캐패시터 등의 이차전지를 이용한 배터릴를 활용한 저장방식과, 비 배터리 저장방식으로 구성된다.For this purpose, the energy storage system is composed of a storage method using a secondary battery such as a LiB battery NaS battery, a flow battery (FB) and a super capacitor, and a non-battery storage method.
이중, 흐름전지 내부에는 전기활성물질을 포함하고 있는 전해질이 있으며, 해당 전해질이 전기화학반응기를 통해 흐르면서 화학적 에너지가 전기 에너지로 변환된다.(여기서 '전기활성물질'이란 전해질에 포함되어 있어 전극반응에 참여하거나 전극에 흡수될 수 있는 물질을 말한다)In the flow cell, there is an electrolyte containing an electroactive material. As the electrolyte flows through the electrochemical reactor, the chemical energy is converted into electrical energy. (Here, 'electroactive material' Or substances that can be absorbed by the electrode)
보다 상세하게 설명하면, 흐름전지는 멤브레인의 양측에 양극 전해질(Electrolyte)과 음극 전해질이 순환하면서 이온 교환이 이루어지고, 이 과정에서 전자의 이동이 발생하여 충방전이 이루어진다. 이와 같은 흐름전지는 기존 이차전지에 비해 수명이 길고 KW-MW급 중대형 시스템으로 제작할 수 있기 때문에 에너지 저장 시스템에 가장 적합한 것으로 알려져 있다.More specifically, in a flow cell, a positive electrode electrolyte and a negative electrode electrolyte are circulated on both sides of a membrane to perform ion exchange, and in this process, electrons move to charge and discharge. Such a flow cell is known to be most suitable for an energy storage system because it can be manufactured as a KW-MW middle-sized system with a longer life than a conventional secondary battery.
이러한 에너지 저장 시스템(ESS : Energy storage system)으로 이차전지의 용량을 늘리기 위하여 반응 물질이 내부로 순환하는 레독스 흐름전지(Redox-Flow battery)가 각광받고 있다.In order to increase the capacity of a secondary battery by using an energy storage system (ESS), a redox-flow battery in which a reaction material circulates is being spotlighted.
레독스 흐름전지란 reduction(환원), oxidation(산화), flow(흐름)의 단어를 합성한 것으로, 전해액을 탱크에 저장하고 그 전해액을 펌프로 셀이라고 불리는 부분에 송액 하여 충전/방전하는 전지를 의미한다.The redox flow battery is a synthesis of the words reduction, oxidation, and flow. It stores the electrolyte in a tank and feeds the electrolyte to the area called the cell to charge / discharge the battery. it means.
이러한 레독스 흐름전지 중 하나로, 등록특허공보 제10-1176126호에는 바이폴라 플레이트와 양전극 멤브레인 음전극이 하나의 셀로 구성되고, 다수의 셀이 직렬적층된 구조에서 일측으로 주입된 전해액이 각 셀을 순차적으로 통과할 때 서로 다른 극을 갖는 바이폴라 플레이트의 유로통공에는 테프론 재지르이 쇼트방지관이 내설되어 서로 다른 극을 갖는 전해액과 바이폴라플레이트의 접촉을 차단해 쇼트에 의해 효율성이 저하되는 것을 방지하는 것을 특징으로 하는 레독스 흐름전지 구조가 도시되어 있다.One of such redox flow cells is disclosed in Japanese Patent Application Laid-Open No. 10-1176126, wherein a bipolar plate and a positive electrode membrane negative electrode are formed of one cell, and an electrolyte injected into one side in a structure in which a plurality of cells are stacked in series, And a Teflon-Zirconia short-circuit prevention pipe is provided in the passage hole of the bipolar plate having different polarities when passing therethrough, thereby preventing the electrolyte from having different polarities from contacting the bipolar plate and preventing the efficiency from being lowered by short- A redox flow cell structure is shown.
그러나, 이러한 종래의 레독스 흐름전지는 전지를 구성하는 셀이 서로 직렬로 연결된 구조로, 서로 직렬 연결되는 셀 중 어느 하나의 셀에서 문제가 발생할 경우, 셀이 모여 이루어지는 레독스 흐름전지의 성능이 저하되는 문제점이 있다.However, in the conventional redox flow battery, when the cells constituting the battery are connected in series and a problem occurs in any one of the cells connected in series to each other, the performance of the redox- There is a problem of deterioration.
이러한 종래의 레독스 흐름전지가 가지는 문제점을 해결하고자, 레독스 흐름전지를 구성하는 셀과 충전부 또는 방전부를 병렬로 연결하기 위한 시도가 있었으나, 종래의 레독스 흐름전지는 각각의 셀을 직렬 연결하기 용이한 구조로, 각각의 셀과 충전부 또는 방전부를 병렬로 연결하기 위해서는 셀마다 두 개 이상의 집전판이 결합되어야 하기 때문에, 셀의 부피가 커지는 문제점이 있을 뿐만 아니라, 구리 재질로 이루어진 집전판이 전해액과 직접 접하는 것을 방지하기 위하여 집전판에 형성된 전해액 이동통로에 오링을 위치시켜야 하기 때문에, 셀을 압착하더라도 분리막과 집전판이 오링에 의해 서로 이격되어 에너지의 충전과 방전 성능이 저하되는 문제점 또한 있었다.In order to solve the problems of the conventional redox flow battery, there has been an attempt to connect the cells constituting the redox flow battery with the live part or the discharge part in parallel. However, in the conventional redox flow battery, In order to connect each cell and the charging part or the discharging part in parallel, two or more current collecting plates have to be combined for each cell, so that there is a problem in that the volume of the cell is increased, and a collector plate made of a copper material is directly connected to the electrolyte The O-ring must be positioned in the electrolyte flow passage formed on the current collecting plate to prevent the separator and the current collector plate from being separated from each other by the O-ring even when the cell is squeezed to lower the energy charging and discharging performance.
따라서, 위와 같은 문제점을 해결할 수 있는 새로운 셀 구조를 가지는 레독스 흐름전지의 필요성이 대두되고 있다.Therefore, there is a need for a redox flow cell having a novel cell structure that can solve the above problems.
[선행기술문헌][Prior Art Literature]
특허문헌 1) 국내공개특허 제2011-0116624호(명칭: 레독스 흐름전지 구조, 공개일: 2011.10.26)Patent Document 1) Korean Patent Laid-Open No. 2011-0116624 (name: redox flow battery structure, published on October 26, 2011)
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 셀과 충전부 및 방전부를 병렬로 연결 가능한 레독스 흐름전지를 제공하는 것이다.SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a redox flow cell capable of connecting a cell, a charger and a discharger in parallel.
또한, 레독스 흐름전지를 구성하는 복수개의 셀과 충전부 및 방전부를 병렬로 연결 시 레독스 흐름전지의 부피가 커져 실효성이 떨어지는 문제점을 해결 가능한, 새로운 구조를 레독스 흐름전지를 제공하는 것이다.Another object of the present invention is to provide a redox flow cell having a novel structure capable of solving the problem of inefficiency due to the volume of the redox flow cell being increased when a plurality of cells constituting the redox flow battery, a charging unit and a discharge unit are connected in parallel.
그리고, 분리판 상에 집전판을 내장하는 방법을 제공하여, 레독스 흐름전지를 구성하는 구성요소의 개수를 최소화 하는 것이다.A method of incorporating a current collecting plate on a separator plate is provided to minimize the number of components constituting the redox flow cell.
상기한 바와 같은 목적을 달성하기 위한 본 발명인 레독스 흐름전지는, 전해액을 셀 단위체 내부로 순환시키는 레독스 흐름전지에 있어서, 이온이 통과되는 분리막(110)과, 상기 분리막(110)의 양 면에 각각 적층되되, 양극 전해액과 음극 전해액이 각각 통과하는 유로가 형성된 유로프레임(120)을 포함하며, 일렬로 배치되는 복수개의 셀 단위체(100); 및 일렬로 배치된 상기 셀 단위체(100)의 양 가장자리 끝단과, 서로 인접한 상기 셀 단위체(100) 사이에 배치되는 복수개의 집전모듈(200);을 포함하며, 상기 셀 단위체(100)는 같은 극의 유로프레임(120)이 상기 집전모듈(200)을 통해 서로 접하도록 일렬로 배열되는 것을 특징으로 한다.The redox flow cell according to the present invention is a redox flow battery for circulating an electrolyte solution into a cell unit. The redox flow battery includes a separation membrane 110 through which ions are passed, A plurality of cell unit bodies (100) arranged in a line and including a flow path frame (120) in which a flow path through which a positive electrode electrolyte solution and a negative electrode electrolyte pass, respectively; And a plurality of current collecting modules (200) disposed between the cell unit bodies (100) adjacent to each other at both edge ends of the cell unit units (100) arranged in a line and the cell unit units (100) Are arranged in a line so that the flow path frames (120) of the flow paths (120) contact with each other through the current collecting module (200).
또한, 상기 집전모듈(200)은 접하는 두개의 유로 프레임(120)을 순환하는 전해액이 혼합되는 것을 방지하되 전하가 통과되는 분리판(210)과, 도전성 재질로 이루어지는 집전판(220)을 포함하는 것을 특징으로 한다.The current collecting module 200 includes a separator plate 210 through which electric charges circulating through the two flow path frames 120 are prevented from mixing with each other and a current collecting plate 220 made of a conductive material, .
또한, 상기 집전모듈(200)은 일측에 위치되는 셀 단위체(100)와 타측에 위치되는 셀 단위체(100)가 서로 마주보는 내면에 각각 적층되는 두 개의 분리판(210)과, 일측과 타측에 배치된 분리판(210) 사이에 배치되는 집전판(200)으로 구성되며, 서로 동일한 극성으로 연결된 셀 단위체(100) 사이에 배치되는 복수개의 제1 집전모듈과, 복수개의 상기 셀 단위체(100)의 최외각 일측과 타측에 적층되는 분리판(210)과, 각각의 상기 분리판(210) 외측에 적층되는 집전판(200)으로 구성되는 한 쌍의 제2 집전모듈을 포함하는 것을 특징으로 한다.The current collecting module 200 includes two separator plates 210 stacked on the inner surface of the cell unit unit 100 located on one side and the cell unit unit 100 located on the other side, And a current collecting plate 200 disposed between the separating plates 210. The plurality of first current collecting modules are disposed between the cell unit bodies 100 connected to each other with the same polarity, And a pair of second current collecting modules each composed of a separator plate 210 laminated on one side and an outermost side of the separator plate 210 and a collecting plate 200 laminated on the outside of each separator plate 210 .
또한, 상기 집전모듈(200)은 상기 집전판(220)이 상기 분리판(210) 상에 내장되되, 집전판(220)의 일측이 외부로 돌출되는 제3 집전모듈(200A)을 포함하는 것을 특징으로 한다.The current collecting module 200 includes a current collecting module 200A in which the current collecting plate 220 is embedded on the separating plate 210 and one side of the current collecting plate 220 protrudes to the outside .
또한, 복수개의 상기 집전모듈(200) 중 양극인 집전모듈(200)을 병렬로 연결하며 충전부 또는 방전부와 전기적으로 연결되는 양극 회로부(310)와, 복수개의 상기 집전모듈(200) 중 음극인 집전모듈(200)을 병렬로 연결하며 충전부 또는 방전부와 전기적으로 연결되는 음극 회로부(320)로 구성되는 회로부(300)를 포함하는 것을 특징으로 한다.A positive electrode circuit part 310 connected in parallel to the current collecting module 200 which is an anode of the plurality of current collecting modules 200 and electrically connected to the charging part or the discharging part; And a circuit unit 300 composed of a current collecting module 200 connected in parallel and a cathode circuit unit 320 electrically connected to the charging unit or the discharging unit.
또한, 최외각에 위치된 상기 집전모듈(200)을 양측에서 압박하는 고정부(400)를 더 포함하는 것을 특징으로 한다.Further, the present invention is characterized by further comprising a fixing portion (400) for pressing the current collecting module (200) located at the outermost position from both sides.
또한, 레독스 흐름전지를 구성하는 분리판(210)에 집전판(220)을 내장하는 방법에 있어서, 분리판(210)의 양측 단부를 위치 변위가 제한된 고정부재로 압박하는 압박단계(S100); 분리판(210)의 중앙영역을 가열하는 가열단계(S200); 가열된 분리판(210)의 중앙영역이 팽창하며 일측과 타측으로 벌어져 결합홈이 형성되는 결합홈 형성단계(S300); 상기 결합홈에 상기 집전판(220)을 끼워넣는 집전판 장착단계(S400); 및 상기 분리판(210)을 냉각하는 냉각단계(S500); 및 냉각된 상기 분리판(210)이 수축되며 일측과 타측으로 벌어진 분리판(210)의 중앙 영역이 결합홈에 위치된 집전판(220)을 압박 고정하는 결합단계(S600);를 포함하는 것을 특징으로 한다.In the method of embedding the current collecting plate 220 in the separating plate 210 constituting the redox flow cell, a pressing step S100 for pressing the both ends of the separating plate 210 with a fixing member whose positional displacement is limited, ; A heating step (S200) of heating a central region of the separator plate (210); A coupling groove forming step S300 in which a central region of the heated separator plate 210 expands and a coupling groove is formed by opening at one side and the other side; A current collecting plate mounting step (S400) of inserting the current collecting plate (220) into the coupling groove; And a cooling step (S500) of cooling the separator plate (210); And a coupling step (S600) for pressing and fixing the collecting plate (220) located in the coupling groove, the central region of the separating plate (210) contracting the cooled separating plate (210) and widened to one side and the other side .
또한, 상기 고정부재는 상기 압박단계(S100)에서 상기 분리판(210)의 가장자리에 형성된 전해액 이동통로(L)를 폐쇄하는 것을 특징으로 한다.Further, the fixing member closes the electrolyte flow passage L formed at the edge of the separator plate 210 in the pressing step S100.
또한, 상기 가열단계(S200)에서 상기 분리판(210)은 700도 내지 1500도의 온도를 가지는 열원에 의해 가열되는 것을 특징으로 한다.In addition, in the heating step (S200), the separation plate 210 is heated by a heat source having a temperature of 700 to 1500 degrees.
또한, 상기 가열단계(S200)에서 상기 열원은 상기 분리판(210)을 1 내지 10초 가열하는 것을 특징으로 한다.Also, in the heating step (S200), the heat source heats the separator plate 210 for 1 to 10 seconds.
상기와 같은 구성에 의한 본 발명인 레독스 흐름전지는, 레독스 흐름전지를 구성하는 인접한 복수개의 셀 단위체가 양극과 양극이 마주보게 배치되고, 음극과 음극이 마주보게 배치되어, 셀과 방전부 및 충전부를 병렬 연결시킬 시 필요한 집전판의 개수를 최소화 가능한 장점이 있다.In the redox flow cell according to the present invention, the plurality of adjacent cell unit bodies constituting the redox flow cell are arranged so that the positive electrode and the positive electrode face each other, the negative electrode and the negative electrode face each other, There is an advantage that the number of collector plates necessary for connecting the live parts in parallel can be minimized.
즉, 셀의 배치 구조를 개선하여, 셀과 방전부 및 충전부를 병렬로 연결 시 각각의 셀마다 최소 2개의 집전판이 필요하기 때문에 레독스 흐름전지의 부피가 커졌던 문제점을 해소한 것이다.That is, the arrangement structure of the cells is improved, and at least two current collecting plates are required for each cell when the discharge part and the charging part are connected in parallel, thereby solving the problem that the volume of the redox flow cell is increased.
또한, 분리판에 집전판을 내장하여, 서로 동일한 극성의 전해액이 흐르는 유로프레임 사이에 집전판이 내장된 분리판 하나만 배치하면 충분하므로, 레독스 흐름전지의 구성을 단순화 가능한 장점이 있다.Further, it is sufficient to dispose only one separator plate in which a collector plate is built in the separator plate and a current collecting plate is interposed between the flow path frames through which the electrolytic solution having the same polarity flows, thereby simplifying the configuration of the redox flow cell.
상세히 설명하면, 레독스 흐름전지를 구성하기 위한 구성요소의 개수를 최소화 하여 레독스 흐름전지의 생산 단가를 낮추고, 제한된 공간에 보다 많은 셀 단위체가 위치될 수 있게 하여, 레독스 흐름전지의 충전 용량을 극대화 가능한 것이다.In detail, the number of components for constituting the redox flow battery is minimized, thereby reducing the production cost of the redox flow battery and allowing more cell unit bodies to be located in a limited space, Can be maximized.
도 1은 본 발명인 레독스 흐름전지의 개념도.1 is a conceptual view of a redox flow cell of the present invention.
도 2는 본 발명인 레독스 흐름전지의 분해 사시도.(분리판과 집전판이 개별 형성 시)FIG. 2 is an exploded perspective view of a redox flow cell according to the present invention (when the separator plate and the current collector plate are separately formed)
도 3은 본 발명인 레독스 흐름전지의 분해 사시도.(분리판에 집전판 내장 시)3 is an exploded perspective view of a redox flow cell according to the present invention.
도 4는 본 발명인 레독스 흐름전지를 구성하는 셀 단위체와 집전모듈이 모여 스택을 형성한 것을 나타낸 사시도.FIG. 4 is a perspective view showing a stack of cell unit bodies and current collecting modules assembled together in the redox flow cell of the present invention. FIG.
도 5는 분리판에 집전판이 내장된 집전모듈의 A-A 단면도.5 is a cross-sectional view taken along the line A-A of the current collecting module in which the current collecting plate is built in the separating plate.
도 6은 본 발명인 레독스 흐름전지를 대상물체와 전기적으로 연결한 것을 나타낸 개념도.6 is a conceptual diagram showing a redox flow cell according to the present invention electrically connected to a target object.
도 7은 본 발명인 레독스 흐름전지를 구성하는 스택을 압박하는 고정부를 나타낸 개념도.7 is a conceptual view showing a fixing unit for pressing a stack constituting the redox flow cell of the present invention.
도 8은 분리판에 집전판을 내장하는 방법을 나타낸 순서도.8 is a flowchart showing a method of incorporating a current collecting plate in a separating plate.
도 9 내지 도 13은 분리판에 집전판을 내장하는 방법을 나타낸 개념도.9 to 13 are conceptual diagrams showing a method of incorporating a current collecting plate in a separating plate.
본 발명의 실시예들에 대한 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성요소를 지칭한다.Advantages and features of embodiments of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
본 발명의 실시예들을 설명함에 있어서 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다. 그리고 후술되는 용어들은 본 발명의 실시예에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.
이하, 첨부된 도면을 참조하여 본 발명에 따른 레독스 흐름전지에 관하여 설명하도록 한다.Hereinafter, a redox flow cell according to the present invention will be described with reference to the accompanying drawings.
도 1에서는 본 발명인 레독스 흐름전지(1000)의 구조를 설명하기 위한 개략 구조도를 도시하고 있다.1 is a schematic structural view for explaining a structure of a redox flow cell 1000 according to the present invention.
도 1을 참조하여 설명하면 본 발명인 레독스 흐름전지는 전지는 이온이 통과되는 분리막(110)과, 상기 분리막(110)의 양 면에 각각 적층되며, 양극 전해액과 음극 전해액이 각각 통과하는 유로가 형성된 유로프레임(120)을 포함하는 복수개의 셀 단위체(100)와, 복수개의 상기 셀 단위체(100)의 양 끝단과, 서로 인접한 상기 셀 단위체(100) 사이에 배치되는 3개 이상의 집전모듈(200)을 포함하며, 상기 셀 단위체(100)는 같은 극이 상기 집전모듈(200)을 통해 서로 접하도록 일렬로 배치된다.1, a redox flow cell according to the present invention comprises a separator 110 through which ions pass, a separator 110 disposed on both sides of the separator 110, and a flow path through which the positive electrode electrolyte and the negative electrode electrolyte pass, respectively A plurality of cell module units 100 including the formed flow path frame 120 and three or more current collecting modules 200 disposed between both ends of the plurality of cell unit units 100 and adjacent cell unit units 100 And the cell unit bodies 100 are arranged in a line so that the same poles are in contact with each other through the current collecting module 200.
상세히 설명하면, 복수개의 상기 셀 단위체(100)와 복수개의 상기 집전모듈(200)을 서로 교차 배치시키되, 서로 마주보는 동일 극성의 전해액이 흐르는 유로 프레임(120)을 상기 집전모듈(200)이 연결하여, 레독스 흐름전지(1000)를 구성하는 하나의 스택(1000A)을 형성하게 한 것이다.A plurality of cell unit bodies 100 and a plurality of the current collecting modules 200 are crossed with each other while a flow path frame 120 in which the same polarity electrolyte flows in opposition is connected to the current collecting module 200 Thereby forming one stack 1000A constituting the redox flow battery 1000. [
더 상세하게 설명하면, 종래의 레독스 흐름전지는 충전부 및 방전부와 레독스 흐름전지를 구성하는 셀을 병렬로 연결하기 위해서는 셀의 양측에 각각 분리판과 집전판을 순차적으로 적층시켜야 했으며, 이러한 구조를 가지는 종래의 레독스 흐름전지는 복수개의 셀과 분리판 및 집전판이 모여 이루어지는 스택을 충전부 및 방전부와 직렬로 연결할 때와 비교하여 다수개의 집전판을 필요로 하기 때문에, 복수개의 셀과 분리판 및 집전판이 모여 이루어지는 스택의 부피가 커져, 한정된 공간에 위치될 수 있는 셀의 개수가 줄어들게 되므로, 결국 충방전 효율이 줄어드는 문제와 직결되었다.More specifically, in order to connect the cells constituting the rechargeable battery, the discharging unit, and the redox flow cell in parallel, the conventional redox flow battery has to sequentially stack the separator plate and the current collector plate on both sides of the cell, A conventional redox flow cell requires a plurality of current collecting plates in comparison with a case where a stack including a plurality of cells, a separator plate, and a current collector plate is connected in series with the charging unit and the discharging unit, The volume of the stack in which the plate and the current collecting plate are gathered becomes large and the number of cells that can be located in a limited space is reduced, resulting in a problem of a decrease in charge / discharge efficiency.
따라서, 본 발명인 레독스 흐름전지(1000)는 도 1에 도시된 바와 같이 서로 인접한 유로 프레임(120)에 동일한 극성을 가지는 전해액이 순환시켜, 서로 인접한 유로 프레임(120) 사이에 유로 프레임(120)을 순환하는 전해액이 혼합되는 것을 방지하는 분리판과, 도전성 재질로 이루어지는 집전판이 모여 이루어지는 집전모듈(200)이 한 개만 배치될 수 있게 함으로써, 각각의 셀 단위체(100)를 구성하는 유로 프레임(120)의 가장자리마다 개별적으로 집전모듈(200)이 배치될 경우 발생하는 스택의 두께증가 문제를 해결 한 것이다.1, the electrolytic solution having the same polarity is circulated in the flow path frame 120 adjacent to each other as shown in FIG. 1, so that the flow path frame 120 is interposed between the adjacent flow path frames 120, And the current collecting module 200 in which the current collecting plates made of a conductive material are gathered can be disposed on the flow path frame 120 (120) constituting each cell unit body (100) The present invention solves the problem of increasing the thickness of the stack, which occurs when the current collecting module 200 is individually disposed at each edge of the stack.
이때, 서로 인접한 유로 프레임(120)에 동일한 극성을 가지는 전해액이 유입된다는 것은, 스택을 구성하는 복수개의 상기 유로 프레임(120) 중 최외각에 위치되는 유로 프레임(120)의 경우 인접한 유로 프레임(120)과 서로 다른 극성을 가지는 전해액이 순환되되, 최외각에 위치되지 않는 유로 프레임(120)의 경우 서로 인접한 유로 프레임(120)과 동일한 극성을 가지는 전해액이 유입된다는 것을 의미함은 물론이다.The reason that the electrolytic solution having the same polarity is introduced into the adjacent channel frames 120 is that in the case of the channel frame 120 located at the outermost one of the plurality of channel frames 120 constituting the stack, The electrolyte solution having the same polarity as that of the adjacent flow path frame 120 flows in the case of the flow path frame 120 not positioned at the outermost periphery.
즉, 복수개의 셀 단위체(100)와 집전모듈(200)이 서로 적층되어 하나의 스택을 형성 시, 양극 전해액이 저장된 양극 전해액 탱크(10)와 음극 전해액이 저장된 음극 전해액 탱크(20)가, 집전모듈(200)의 양면에 밀착 배치되는 서로 다른 셀 단위체(100)를 구성하는 유로 프레임(120)에 동일한 극성을 가지는 전해액을 순환시켜, 서로 인접한 셀 단위체(100)의 연결부가 동일한 극성을 가지게 한 것이다.That is, when a plurality of cell unit bodies 100 and the current collecting module 200 are stacked to form one stack, the anode electrolyte tank 10 storing the anode electrolyte and the cathode electrolyte tank 20 storing the cathode electrolyte are collectively referred to as collectors The electrolytic solution having the same polarity is circulated in the flow path frame 120 constituting the different cell unit bodies 100 disposed closely to both sides of the module 200 so that the connection portions of the adjacent cell unit bodies 100 have the same polarity will be.
도 2에서는 본 발명인 레독스 흐름전지(1000)의 스택을 구성하는 하나의 셀(S)의 분해 사시도를 도시하고 있다.2 is an exploded perspective view of one cell S constituting a stack of the redox flow cell 1000 of the present invention.
도 2를 참조하여 설명하면, 본 발명에서 상기 셀(S)은 중앙에 위치되며 전해액은 통과하지 못하되 이온이 통과하는 성질을 가지는 멤브레인과 같은 분리막(110)과, 상기 분리막(110)의 양측면에 각각 적층되며 서로 다른 극을 띄는 전해액이 통과하는 유로가 형성된 유로 프레임(120)과, 각각의 상기 유로 프레임(120)의 양측면에 적층되어 유로 프레임(120)을 흐르는 전해액이 외부로 방출되는 것을 제한하는 분리판(210)과, 상기 분리판(210)의 양측면에 적층되는 집전판(220)을 포함하여 이루어질 수 있다.Referring to FIG. 2, in the present invention, the cell S is disposed at the center, and includes a separation membrane 110 such as a membrane having a property of passing ions but not passing an electrolyte, And an electrolyte solution flowing through the flow path frame 120 is discharged to the outside of the flow path frame 120. The flow path frame 120 includes a flow path frame 120 in which a flow path through which electrolyte flows, And a current collecting plate 220 stacked on both sides of the separating plate 210. The current collecting plate 220 may be formed of a conductive material.
상세히 설명하면, 상기 집전판(220)과, 상기 분리판(210)과, 상기 유로 프레임(120)과, 상기 분리막(110)의 가장자리는 양극 성질의 전해액이 유입되는 양극 전해액 유입통로와, 양극 전해액이 방출되는 양극 전해액 방출통로와, 음극 성질의 전해액이 유입되는 음극 전해액 유입 통로와, 음극 전해액이 방출되는 음극 전해액 방출통로가 형성되며, 상기 양극 전해액 유입통로를 통해 유입된 전해액은 상기 분리막(110)의 일면에 적층된 유로 프레임(120)으로 유입되어 분리막(110)의 일면과 접한 후 상기 양극 전해액 방출 통로를 통하여 방출되고, 상기 음극 전해액 유입통로를 통해 유입된 전해액은 상기 분리막(110)의 타면에 적층된 유로 프레임(120)으로 유입되어 분리막(110)의 타면과 접한 후 상기 음극 전해액 방출 통로를 통하여 방출되며, 이때 전하의 이동이 가능한 분리막(110)의 일면과 타면에 서로 다른 극성을 가지는 전해액이 산화 및 환원반응 하여 충방전이 일어나게 되는 것이다.In detail, the edges of the current collector plate 220, the separator plate 210, the flow path frame 120, and the separator 110 have a positive electrode electrolyte inflow passage through which a positive-polarity electrolyte flows, A cathode electrolyte discharge passage through which the electrolyte is discharged, a cathode electrolyte inlet passage through which the cathode electrolyte flows, and a cathode electrolyte discharge passage through which the cathode electrolyte is discharged, and the electrolyte introduced through the cathode electrolyte inflow passage passes through the separator The electrolyte solution flowing into the channel frame 110 is discharged through the cathode electrolyte discharge passage after being contacted with one surface of the separation membrane 110 and the electrolyte solution flowing through the cathode electrolyte solution inlet passage is separated from the separation membrane 110, Flows into the flow path frame 120 stacked on the other surface of the separator 110 and comes into contact with the other surface of the separator 110 and is discharged through the cathode electrolyte discharge passage. The electrolyte solution is possible with the other polarity to each other on the other surface and one surface of the membrane 110 and the oxidation-reduction reaction will take place which can be charged and discharged.
그리고, 상기 셀(S)이 도 2에 도시된 바와 같은 구조로 이루어질 시 도 1에 도시된 상기 집전모듈(200)은 일측에 위치되는 유로 프레임(120)과 접하는 분리판과, 타측에 위치되는 유로 프레임(120)과 접하는 분리판(210)과, 일측과 타측에 배치된 분리판(210) 사이에 배치되는 집전판(220)으로 구성되며, 서로 동일한 극성으로 연결된 셀 단위체(100)를 연결하는 제1 집전모듈과, 복수개의 상기 셀 단위체(100)의 최외각 일측과 타측에 배치되는 분리판(210)과, 각각의 상기 분리판(210) 외측에 적층되는 집전판(200)으로 구성되는 한 쌍의 제2 집전모듈을 포함하여 이루어질 수 있다.2, the current collecting module 200 shown in FIG. 1 includes a separator plate contacting the flow path frame 120 located at one side, and a separator disposed at the other side The cell unit 100 is composed of a separator plate 210 in contact with the flow path frame 120 and a collecting plate 220 disposed between the separator plates 210 disposed on one side and the other side, A separator plate 210 disposed on the other side of the outermost one of the plurality of cell unit bodies 100 and a collecting plate 200 stacked on the outside of each separator plate 210 And a pair of second current collecting modules which are connected to each other.
상세히 설명하면, 복수개의 셀 단위체(100)가 모여 레독스 흐름전지에 사용되는 하나의 스택(1000A)을 형성 시, 최외각에 위치되는 셀 단위체(100)에 상기 제2 집전모듈을 위치시키고, 서로 동일한 극이 마주보는 셀 단위체(100) 사이에 상기 제1 집전모듈을 배치하여, 레독스 흐름전지에 사용되는 스택의 부피를 최소화 한 것이다.In detail, when a plurality of cell unit bodies 100 are gathered to form one stack 1000A used in a redox flow cell, the second current collector module is placed in the cell unit 100 located at the outermost position, The first current collecting module is disposed between the cell units 100 facing the same polarity to minimize the volume of the stack used in the redox flow cell.
또한, 본 발명인 레독스 흐름전지(1000)는 도 3에 도시된 바와 같이 상기 집전판(220)이 상기 분리판(210) 상에 내장되어 제3 집전모듈(200A)을 형성할 수 있으며, 상기 제3 집전모듈(200A)을 이용하여 상기 셀(S)을 형성 시 셀(S)은 전해액은 통과하지 못하되 이온이 통과하는 성질을 가지는 분리막(110)과, 분리막(110)의 양측면에 각각 적층되며 서로 다른 극을 띄는 전해액이 통과하는 유로가 형성된 두 개의 유로 프레임(120)과, 각각의 유로 프레임(120)의 양 측면에 적층되는 제3 집전모듈(200A)을 포함하여 이루어질 수 있다.3, the collector plate 220 of the redox flow cell 1000 according to the present invention is embedded in the separator plate 210 to form a third current collector module 200A, When the cell S is formed using the third current collecting module 200A, the cell S has a separation membrane 110 having a property of passing the electrolyte but not allowing the electrolyte to pass therethrough, And a third current collecting module 200A stacked on both side surfaces of the flow path frame 120. The current collecting module 200A includes a first current collecting module 200A and a second current collecting module 200B.
상세히 설명하면, 상기 집전판(220)을 상기 분리판(210) 내부에 내장하여 셀(S)을 구성하는 구성요소의 개수를 최소화 하고, 나아가 도 4에 도시된 바와 같이 셀(S)을 이용하여 레독스 흐름전지에 사용되는 스택(1000A)을 형성 시, 복수개 나열되는 셀 단위체(100)의 양측 단부와, 각각의 셀 단위체(100)가 서로 연결되는 연결부에 상기 제3 집전모듈(200A)만 위치되면 충분하므로, 레독스 흐름전지의 두께를 최소화 하고, 제한된 공간에 위치 가능한 셀 단위체(100)의 개수를 극대화 가능 한 것이다.In more detail, the current collecting plate 220 is embedded in the separator 210 to minimize the number of components constituting the cell S, and further, the cell S is used as shown in FIG. 4 The third collecting module 200A is connected to both ends of the plurality of cell unit bodies 100 and a connecting portion where the respective cell unit bodies 100 are connected to each other when the stack 1000A used in the redox flow cell is formed, It is possible to minimize the thickness of the redox flow cell and to maximize the number of the cell unit bodies 100 that can be positioned in a limited space.
아울러, 본 발명인 레독스 흐름전지(1000)는 상기 도 5에 도시된 바와 같이 상기 집전판(220)이 상기 분리판(210)에 내장되어, 전해액 이동통로를 통과하는 전해액과 집전판이 직접 접촉하는 것을 방지 가능할 뿐만 아니라, 레독스 흐름전지를 구성하는 스택의 두께를 줄이는 것이 가능하다.5, the current collecting plate 220 is embedded in the separating plate 210, and the electrolytic solution passing through the electrolytic solution passing passage is directly contacted with the current collecting plate It is possible to reduce the thickness of the stack constituting the redox flow cell.
상세히 설명하면, 상기 집전판(220)은 일반적으로 구리 재질로 이루어지기 때문에 전해액과 직접 접촉 시 집전판(220)이 산화되어 장치의 내구성이 떨어지는 문제가 발생하며, 종래에는 이러한 문제를 방지하기 위하여 집전판(220)에 형성된 전해액 이동통로 상에 오링을 설치하여, 전해액이 집전판(220)과 직접 접촉하는 것을 제한하였다.In detail, since the current collecting plate 220 is made of a copper material, the current collecting plate 220 is oxidized when it is in direct contact with the electrolytic solution, resulting in a problem that the durability of the apparatus is inferior. An O-ring is provided on the electrolyte flow passage formed in the current collecting plate 220 to limit the direct contact of the electrolyte with the current collecting plate 220.
따라서, 본 발명에서는 오링의 사용을 최소화하기 위해 도 5의 A-A 단면도에 도시된 바와 같이 상기 분리판(210) 내부에 상기 집전판(220)을 집전판(220)이 분리판(210)에 형성된 전해액이 통과하는 유로와 닿지 않게 내장함으로써 이러한 문제점을 해결 한 것이다.Therefore, in order to minimize the use of the O-ring, the current collecting plate 220 may be formed in the separating plate 210 so that the current collecting plate 220 is formed on the separating plate 210, This problem is solved by embedding the electrolytic solution so as not to come in contact with the passage through which the electrolytic solution passes.
또한, 도 6을 참조하여 설명하면 본 발명인 레독스 흐름전지(1000)는 복수개의 상기 집전모듈(200)중 양극인 집전모듈(200)을 병렬로 연결하며 충전부 또는 방전부와 전기적으로 연결되는 양극 회로부(310)와, 복수개의 상기 집전모듈(200) 중 음극인 집전모듈(200)을 병렬로 연결하며 충전부 또는 방전부와 전기적으로 연결되는 음극 회로부(320)를 포함할 수 있다.6, the redox flow battery 1000 according to the present invention includes a plurality of current collecting modules 200 connected in parallel to a plurality of current collecting modules 200, And a cathode circuit unit 320 connected in parallel to the current collecting module 200 which is a negative one of the plurality of current collecting modules 200 and electrically connected to the charging unit or the discharging unit.
상세히 설명하면, 양극 전해질이 순환하는 유로 프레임(120)과 접하는 복수개의 상기 집전모듈(200)을 상기 양극 회로부(310)가 연결하고, 음극 전해질이 순환하는 유로 프레임(120)과 접하는 복수개의 상기 집전모듈(200)을 상기 음극 회로부(320)가 연결한 후, 양극 회로부(310)와 음극 회로부(320)가 충전부 또는 방전부와 같은 대상물체(30)와 연결되어 충전 및 방전 가능하게 한 것이다.A plurality of the current collecting modules 200 in contact with the flow path frame 120 through which the positive electrode electrolyte circulates are connected to the positive electrode circuit unit 310 and a plurality of the plurality of current collecting modules 200 contacting the flow path frame 120 through which the negative electrode electrolyte circulates. The anode circuit part 310 and the cathode circuit part 320 are connected to the object 30 such as the charging part or the discharging part so that they can be charged and discharged after the cathode circuit part 320 is connected to the current collecting module 200 .
결국, 종래의 레독스 흐름전지는 복수개의 셀이 모여 이루어지는 스택과 대상물체를 병렬로 연결할 시, 각각의 셀을 구성하며 양극 전해질이 순환하는 유로프레임과, 각각의 셀을 구성하며 음극 전해질이 순환하는 유로프레임이 음극, 양극, 음극, 양극 구조로 서로 교차 배치되어, 각 셀 의 양단에 개별적인 집전판이 배치되어야 하므로, 스택을 구성하는 셀과 대상물체를 병렬로 연결하기 위하여 스택을 구성하는 셀의 개수가 N개일 경우 필요로 하는 집전판의 개수가 2N개가 되어야 하는 반면, 본 발명인 레독스 흐름전지(1000)는 셀 단위체(100)를 구성하며 서로 동일한 극성을 가지는 유로 프레임(120)이 집전판(220) 극이 서로 접하는 구조(음극, 양극, 양극, 음극, 음극, 양극)로 배치되어, 집전판(220)을 셀 단위체(100)와 셀 단위체(100) 사이 및 셀 단위체(100)의 양측 가장자리 끝 단부에만 배치하면 되므로, 셀 단위체와 대상물체를 병렬로 연결하기 위하여 스택을 구성하는 셀 단위체의 개수가 (N)개일 경우 필요로 하는 집전판(220)의 개수가 N+1개면 충분 한 것이다.As a result, the conventional redox flow cell has a stacked structure in which a plurality of cells are stacked and a target object is connected in parallel, a channel frame constituting each cell and in which a positive electrode electrolyte circulates, and a negative electrode Since the current collecting plates are arranged at the opposite ends of each cell so that the cells of the stack constituting the stack are connected in parallel to each other, The redox flow cell 1000 of the present invention constitutes the cell unit 100 and the flow field frame 120 having the same polarity as that of the collector unit 100 is connected to the collector plate The current collecting plate 220 is disposed between the cell unit 100 and the cell unit 100 and between the cell unit 100 and the cell unit 100, It is sufficient if the number of the current collectors 220 required is N + 1 when the number of the cell unit bodies constituting the stack is (N) in order to connect the cell unit body and the object in parallel. It is.
그리고, 본 발명인 레독스 흐름전지(1000) 도 7에 도시된 바와 같이 최외각에 위치된 상기 집전모듈(200)을 양측에서 압박하는 고정부(400)를 더 포함할 수 있다.The redox flow cell 1000 according to the present invention may further include a fixing unit 400 for pressing the current collecting module 200 located at the outermost position from both sides as shown in FIG.
상세히 설명하면, 셀 단위체(100)를 구성하는 각각의 구성요소와, 집전모듈(200)을 구성하는 각각의 구성요소들이 서로 더욱 밀착 배치 가능하게 하여, 각각의 구성요소들이 서로 접하는 면에서 발생하는 전해액 누출 사고를 방지 가능하게 한 것이다.In detail, each constituent element constituting the cell unit body 100 and each constituent element constituting the current collecting module 200 can be arranged more closely to each other, so that the constituent elements of the cell unit body 100 Thereby preventing an electrolyte leakage accident.
또한, 본 발명인 레독스 흐름전지(1000)는 도 8에 도시된 방법을 통하여 상기 분리판(210)에 집전판(220)이 내장될 수 있으며, 분리판(210)에 집전판(220)을 내장하는 방법은 분리판(210)의 양측 단부를 위치 변위가 제한된 고정부재로 압박하는 압박단계(S100)와, 분리판(210)의 중앙영역을 가열하는 가열단계(S200)와, 가열된 분리판(210)의 중앙영역이 팽창하며 일측과 타측으로 벌어져 결합홈(211)이 형성되는 결합홈 형성단계(S300)와, 상기 결합홈(211)에 상기 집전판(220)을 끼워넣는 집전판 장착단계(S400)와, 상기 분리판(210)을 냉각하는 냉각단계(S500)와, 냉각된 상기 분리판(210)이 수축되며 일측과 타측으로 벌어진 분리판(210)의 중앙 영역이 결합홈(211)에 위치된 집전판(220)을 압박 고정하는 결합단계(S600)를 포함하여 이루어질 수 있다.The redox flow cell 1000 according to the present invention can incorporate the current collecting plate 220 in the separating plate 210 through the method shown in FIG. 8, and the current collecting plate 220 is attached to the separating plate 210 A pressing step S100 for pressing both ends of the separating plate 210 with a fixing member whose positional displacement is limited, a heating step S200 for heating a central region of the separating plate 210, A coupling groove forming step S300 in which a central region of the plate 210 expands and extends to one side and the other side to form a coupling groove 211; A cooling step (S500) of cooling the separating plate (210), a cooling step (S500) of cooling the separating plate (210), a central region of the separating plate (210) (S600) for pressing and fixing the current collector plate (220) positioned in the first housing (211).
상세히 설명하면, 상기 압박단계(S100)에서 도 9에 도시된 바와 같이 분리판(210)의 폭방향 양측 단부를 고정부재(G)로 고정하여 분리판(210)의 폭방향 양측이 팽창되거나 움직이지 못하게 함과 동시에 상기 전해액 이동통로(L)를 폐쇄하고, 상기 가열단계(S200)에서 도 10에 도시된 바와 같이 분리판(210)을 500도 내지 1500도의 온도를 가지는 열원으로 1초 내지 10초 동안 가열하여, 상기 결합홈 형성단계(S300)에서 도 11에 도시된 바와 같이 분리판(210)의 중앙영역이 팽창하며 상측과 하측으로 벌어져 중심에 결합홈(211)이 형성되게 하고, 상기 집전판 장착단계(S400)에서 도 12에 도시된 바와 같이 결합홈 상에 집전판(220)을 끼워넣은 후, 냉각단계(S500)에서 가열된 분리판(210)을 냉각하여 결합단계(S600)에서 도 13에 도시된 바와 같이 결합홈(211)에 위치된 집전판(220)이 결합홈(211)을 형성하던 분리판(210)의 중앙영역에 의해 압박 고정되게 한 것이다.9, the both ends in the width direction of the separating plate 210 are fixed by the fixing member G so that both sides of the separating plate 210 in the width direction are expanded or moved And the electrolytic solution transfer passage L is closed. In the heating step S200, as shown in FIG. 10, the separator plate 210 is heated for 1 second to 10 seconds by a heat source having a temperature of 500 to 1500 degrees. 11, the central region of the separator plate 210 expands and opens upward and downward to form a coupling groove 211 at the center, as shown in FIG. 11, in the coupling groove forming step S300, The collecting plate 220 is inserted into the coupling groove as shown in FIG. 12 in the collecting plate mounting step S400, the separating plate 210 heated in the cooling step S500 is cooled, The current collector plate 220 located in the coupling groove 211 as shown in FIG. By the central region of the separating plate 210 was formed a groove 211 which is fixedly pressed.
본 발명의 상기한 실시 예에 한정하여 기술적 사상을 해석해서는 안된다. 적용범위가 다양함은 물론이고, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당업자의 수준에서 다양한 변형 실시가 가능하다. 따라서 이러한 개량 및 변경은 당업자에게 자명한 것인 한 본 발명의 보호범위에 속하게 된다.The technical idea should not be interpreted as being limited to the above-described embodiment of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

Claims (10)

  1. 전해액을 셀 단위체 내부로 순환시키는 레독스 흐름전지에 있어서,1. A redox flow cell for circulating an electrolyte solution into a cell unit,
    이온이 통과되는 분리막(110)과, 상기 분리막(110)의 양 면에 각각 적층되되, 양극 전해액과 음극 전해액이 각각 통과하는 유로가 형성된 유로프레임(120)을 포함하며, 일렬로 배치되는 복수개의 셀 단위체(100); 및And a flow path frame 120 stacked on both surfaces of the separator 110 and formed with flow paths through which the positive and negative electrode electrolytic solutions respectively pass, A cell unit 100; And
    일렬로 배치된 상기 셀 단위체(100)의 양 가장자리 끝단과, 서로 인접한 상기 셀 단위체(100) 사이에 배치되는 복수개의 집전모듈(200);을 포함하며,And a plurality of current collecting modules (200) disposed between both edge ends of the cell unit units (100) arranged in a row and the cell unit units (100) adjacent to each other,
    상기 셀 단위체(100)는 같은 극의 유로프레임(120)이 상기 집전모듈(200)을 통해 서로 접하도록 일렬로 배열되는 것을 특징으로 하는, 레독스 흐름전지.Wherein the cell unit body (100) is arranged in a line so that the same flow path frame (120) contacts with each other through the current collecting module (200).
  2. 제 1항에 있어서,The method according to claim 1,
    상기 집전모듈(200)은 접하는 두개의 유로 프레임(120)을 순환하는 전해액이 혼합되는 것을 방지하되 전하가 통과되는 분리판(210)과, 도전성 재질로 이루어지는 집전판(220)을 포함하는 것을 특징으로 하는, 레독스 흐름전지.The current collecting module 200 includes a separator plate 210 through which electric charges circulating through the two flow path frames 120 are prevented from mixing with each other and a collecting plate 220 made of a conductive material As a redox flow cell.
  3. 제 2항에 있어서,3. The method of claim 2,
    상기 집전모듈(200)은 일측에 위치되는 셀 단위체(100)와 타측에 위치되는 셀 단위체(100)가 서로 마주보는 내면에 각각 적층되는 두 개의 분리판(210)과, 일측과 타측에 배치된 분리판(210) 사이에 배치되는 집전판(200)으로 구성되며, 서로 동일한 극성으로 연결된 셀 단위체(100) 사이에 배치되는 복수개의 제1 집전모듈과,The current collecting module 200 includes two separator plates 210 laminated on the inner surface of the cell unit body 100 positioned on one side and the cell unit 100 positioned on the other side, And a current collecting plate 200 disposed between the separating plates 210. The plurality of first collecting modules are disposed between the cell unit bodies 100 connected to each other with the same polarity,
    복수개의 상기 셀 단위체(100)의 최외각 일측과 타측에 적층되는 분리판(210)과, 각각의 상기 분리판(210) 외측에 적층되는 집전판(200)으로 구성되는 한 쌍의 제2 집전모듈을 포함하는 것을 특징으로 하는, 레독스 흐름전지.A pair of second collectors composed of a separator plate 210 laminated on one side and the other side of the outermost cell unit bodies 100 and a collecting plate 200 laminated on the outside of each separator plate 210, ≪ / RTI > module.
  4. 제 2항에 있어서,3. The method of claim 2,
    상기 집전모듈(200)은 상기 집전판(220)이 상기 분리판(210) 상에 내장되되, 집전판(220)의 일측이 외부로 돌출되는 제3 집전모듈(200A)을 포함하는 것을 특징으로 하는, 레독스 흐름전지.The current collecting module 200 includes a current collecting module 200A in which the current collecting plate 220 is embedded on the separating plate 210 and one side of the current collecting plate 220 protrudes outward , Redox flow battery.
  5. 제 3항 또는 제 4항에 있어서,The method according to claim 3 or 4,
    복수개의 상기 집전모듈(200) 중 양극인 집전모듈(200)을 병렬로 연결하며 충전부 또는 방전부와 전기적으로 연결되는 양극 회로부(310)와, 복수개의 상기 집전모듈(200) 중 음극인 집전모듈(200)을 병렬로 연결하며 충전부 또는 방전부와 전기적으로 연결되는 음극 회로부(320)로 구성되는 회로부를 포함하는 것을 특징으로 하는, 레독스 흐름전지.A positive polarity circuit unit 310 connected in parallel to the current collecting module 200 which is an anode among a plurality of the current collecting modules 200 and electrically connected to the charging unit or the discharging unit, And a negative electrode circuit part (320) connected in parallel to the positive electrode (200) and electrically connected to the charging part or the discharging part.
  6. 제 5항에 있어서,6. The method of claim 5,
    최외각에 위치된 상기 집전모듈(200)을 양측에서 압박하는 고정부(400)를 더 포함하는 것을 특징으로 하는, 레독스 흐름전지.Further comprising a fixing portion (400) for pressing the current collecting module (200) located at an outermost position from both sides.
  7. 제 4항의 레독스 흐름전지를 구성하는 분리판(210)에 집전판(220)을 내장하는 방법에 있어서,A method for incorporating a current collecting plate (220) in a separator plate (210) constituting the redox flow cell of claim 4,
    분리판(210)의 양측 단부를 위치 변위가 제한된 고정부재로 압박하는 압박단계(S100);A pressing step (S100) of pressing both side ends of the separating plate (210) with a fixing member whose positional displacement is limited;
    분리판(210)의 중앙영역을 가열하는 가열단계(S200);A heating step (S200) of heating a central region of the separator plate (210);
    가열된 분리판(210)의 중앙영역이 팽창하며 일측과 타측으로 벌어져 결합홈이 형성되는 결합홈 형성단계(S300);A coupling groove forming step S300 in which a central region of the heated separator plate 210 expands and a coupling groove is formed by opening at one side and the other side;
    상기 결합홈에 상기 집전판(220)을 끼워넣는 집전판 장착단계(S400); 및A current collecting plate mounting step (S400) of inserting the current collecting plate (220) into the coupling groove; And
    상기 분리판(210)을 냉각하는 냉각단계(S500); 및A cooling step (S500) of cooling the separation plate (210); And
    냉각된 상기 분리판(210)이 수축되며 일측과 타측으로 벌어진 분리판(210)의 중앙 영역이 결합홈에 위치된 집전판(220)을 압박 고정하는 결합단계(S600);를 포함하는, 분리판에 집전판을 내장하는 방법.And a coupling step (S600) for pressing and fixing the current collecting plate (220) located in the coupling groove, the central region of the separating plate (210) being shrunk and separated from the one side and the other side, How to integrate the front plate into the plate.
  8. 제 7항에 있어서,8. The method of claim 7,
    상기 고정부재는 상기 압박단계(S100)에서 상기 분리판(210)의 가장자리에 형성된 전해액 이동통로(L)을 폐쇄하는 것을 특징으로 하는, 분리판에 집전판을 내장하는 방법.Wherein the fixing member closes the electrolyte flow passage (L) formed at the edge of the separator plate (210) in the pressing step (S100).
  9. 제 8항에 있어서,9. The method of claim 8,
    상기 가열단계(S200)에서 상기 분리판(210)은 700도 내지 1500도의 온도를 가지는 열원에 의해 가열되는 것을 특징으로 하는, 분리판에 집전판을 내장하는 방법.Wherein the separation plate (210) is heated by a heat source having a temperature of 700 to 1500 degrees in the heating step (S200).
  10. 제 9항에 있어서,10. The method of claim 9,
    상기 가열단계(S200)에서 상기 열원은 상기 분리판(210)을 1 내지 10초 가열하는 것을 특징으로 하는, 분리판에 집전판을 내장하는 방법.Wherein the heat source heats the separator plate (210) for 1 to 10 seconds in the heating step (S200).
PCT/KR2017/015339 2017-12-22 2017-12-22 Redox flow battery WO2019124599A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0178026 2017-12-22
KR1020170178026A KR102126343B1 (en) 2017-12-22 2017-12-22 Redox flow battery

Publications (1)

Publication Number Publication Date
WO2019124599A1 true WO2019124599A1 (en) 2019-06-27

Family

ID=66994012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/015339 WO2019124599A1 (en) 2017-12-22 2017-12-22 Redox flow battery

Country Status (2)

Country Link
KR (1) KR102126343B1 (en)
WO (1) WO2019124599A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150007750A (en) * 2013-07-12 2015-01-21 오씨아이 주식회사 Redox flow battery and cell frame
KR20160016174A (en) * 2014-08-04 2016-02-15 주식회사 엘지화학 Electrode assembly, cell of secondary battery and manufacturing method
KR101655292B1 (en) * 2016-04-15 2016-09-07 스탠다드에너지(주) Redox flow battery
KR101715915B1 (en) * 2016-04-15 2017-03-13 스탠다드에너지(주) Redox flow battery
KR20170115848A (en) * 2016-04-08 2017-10-18 한국에너지기술연구원 Electrode structure, method for manufacturing thereof and use thereof, and stack structure of redox flow battery

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101176126B1 (en) 2010-04-20 2012-08-22 한국에너지기술연구원 redox flow battery structure
KR101402948B1 (en) 2013-02-08 2014-06-03 한국과학기술원 Redox flow battery
KR101560202B1 (en) 2015-04-30 2015-10-14 스탠다드에너지(주) Redox flow battery
KR101748235B1 (en) * 2015-09-03 2017-06-16 (주) 퓨전정보기술 Redox flow battery having improved heat exchanging property
KR101688975B1 (en) 2015-09-23 2016-12-22 롯데케미칼 주식회사 Zinc-bromine flow battery stack

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150007750A (en) * 2013-07-12 2015-01-21 오씨아이 주식회사 Redox flow battery and cell frame
KR20160016174A (en) * 2014-08-04 2016-02-15 주식회사 엘지화학 Electrode assembly, cell of secondary battery and manufacturing method
KR20170115848A (en) * 2016-04-08 2017-10-18 한국에너지기술연구원 Electrode structure, method for manufacturing thereof and use thereof, and stack structure of redox flow battery
KR101655292B1 (en) * 2016-04-15 2016-09-07 스탠다드에너지(주) Redox flow battery
KR101715915B1 (en) * 2016-04-15 2017-03-13 스탠다드에너지(주) Redox flow battery

Also Published As

Publication number Publication date
KR20190076322A (en) 2019-07-02
KR102126343B1 (en) 2020-06-24

Similar Documents

Publication Publication Date Title
WO2017179795A1 (en) Redox flow battery
WO2019107795A1 (en) Battery pack
WO2015190676A1 (en) Battery pack comprising bushing for coupling end plate
WO2010002139A9 (en) Battery module comprising battery cell assembly with heat exchanger
WO2017150807A1 (en) Battery module, battery pack including battery module, and vehicle including battery pack
WO2017082528A1 (en) Battery module and battery pack including same
WO2015005612A1 (en) Battery assembly
WO2015182909A1 (en) Battery module including water cooling structure
WO2015026202A1 (en) Stackable battery module having easily modifiable connection structure
WO2011083968A2 (en) Mid- or large-sized battery pack having improved cooling efficiency
WO2015016557A1 (en) Battery module assembly having refrigerant fluid channel
WO2014073808A1 (en) Battery module comprising bus bar assembly, and battery pack comprising same
WO2011145830A2 (en) Compact cooling member having superior stability, and battery module comprising same
WO2012086855A1 (en) Lithium secondary battery having multi-directional lead-tab structure
WO2017014449A1 (en) Battery module having structure wherein terminal plates and bms are directly connected
WO2017086664A1 (en) Heat sink and battery module comprising same
WO2019078553A1 (en) Battery module and battery pack comprising same
WO2018199521A1 (en) Battery module, battery pack comprising battery module, and automobile comprising battery pack
WO2017061746A1 (en) Battery module
WO2018216873A1 (en) Battery module, battery pack comprising same and battery module manufacturing method
WO2018216872A1 (en) Battery module and battery pack comprising same
WO2014084474A1 (en) Battery module and battery pack having the same
WO2013151233A1 (en) Battery cell
WO2018221828A1 (en) Battery pack
WO2021182779A1 (en) Battery module having busbar, battery pack and vehicle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17935311

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17935311

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17935311

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 22.01.2021)

122 Ep: pct application non-entry in european phase

Ref document number: 17935311

Country of ref document: EP

Kind code of ref document: A1