WO2013102387A1 - Mécanisme de pression destiné à assembler une batterie à flux rebox - Google Patents

Mécanisme de pression destiné à assembler une batterie à flux rebox Download PDF

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Publication number
WO2013102387A1
WO2013102387A1 PCT/CN2012/085360 CN2012085360W WO2013102387A1 WO 2013102387 A1 WO2013102387 A1 WO 2013102387A1 CN 2012085360 W CN2012085360 W CN 2012085360W WO 2013102387 A1 WO2013102387 A1 WO 2013102387A1
Authority
WO
WIPO (PCT)
Prior art keywords
jack
pressing mechanism
battery
redox flow
disposed
Prior art date
Application number
PCT/CN2012/085360
Other languages
English (en)
Chinese (zh)
Inventor
崔骥
罗臬
杨立章
Original Assignee
Cui Ji
Luo Nie
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
Priority claimed from CN2012200003735U external-priority patent/CN202405372U/zh
Priority claimed from CN2012100002046A external-priority patent/CN103199295A/zh
Application filed by Cui Ji, Luo Nie filed Critical Cui Ji
Publication of WO2013102387A1 publication Critical patent/WO2013102387A1/fr

Links

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
    • 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
    • H01M8/20—Indirect fuel cells, e.g. fuel cells with redox couple being irreversible
    • 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
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
    • H01M8/248—Means for compression of the fuel cell stacks
    • 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 an energy storage device for directly converting chemical energy from electrical energy, particularly for assembly and compaction of large or larger oxidized reduction flow battery panels.
  • the redox flow battery is composed of an anode chamber and a cathode chamber separated by an ion membrane. Positive and negative active electrolytes are respectively flowed in the cavity of the battery chamber, and the anode and the catholyte storage tank are respectively connected to form a closed Circulatory system. Realize the direct conversion between chemical energy and electrical energy.
  • FIG. 1-1 and FIG. 1-2 are one of the prior art solutions.
  • the conductive separator 6 is divided into the front and rear two electro-hydraulic chambers in the middle of the unit cell panel 1. 5.
  • the two electrolytes flow from the lower inlet port 7, flow through the electro-hydraulic chamber, and flow out from the upper outlet port 2.
  • the ion membrane 4 is pressed between the two unit panels, and the two electrolytes perform an ion reaction between the ion membranes to convert the electrical energy into chemical energy.
  • This reaction is reversible, disconnecting the external power source, and the two electrolytes can also react in the stack to convert chemical energy into electrical energy. Therefore, it can be seen that there are 22 bolt holes in the figure.
  • This structure can only be applied to a small liquid stack with a cell board of less than 0.5 m 2 . If it is used in a large power reactor, it is not only troublesome, but more important. It is difficult to ensure that the electric fluid does not leak.
  • the existing battery panel area is small, and the general area is less than 0.5 m 2 . Because of the small circumference, dozens of batteries are combined and pressed by a plurality of long bolts or studs. It is still available. It is also possible to use a screw on the side of the frame assembled by the flow battery, for example, the utility model of the Chinese Patent No.: 03276099.
  • the bolt spacing is increased or more bolts are used to press the stack plate. It is difficult to ensure uniform pressing force on the plate, which may cause partial bolt pressing force to fail and corrosive electrolyte leakage.
  • the bolts pass through the electrode plates. All the components (electrode plates, diaphragms) of the battery need to be widened to form a large volume and waste material.
  • the structure is complicated, the process is cumbersome, and the assembly is troublesome.
  • the battery pack is inconvenient to install and disassemble.
  • the top of the frame is topped with 10 threads. It is also difficult to ensure uniformity of the pressing force of the plate. It is very likely that some of the bolt pressing force will fail and the electrolyte leaks.
  • the problem of uneven multi-bolt tension and multi-thread top pressure unevenness and leakage problem limit the area of the panel and limit the total energy density and power of the battery.
  • the present invention provides a pressing mechanism for redox flow battery assembly which solves the problems associated with the prior art using bolt compression.
  • the invention designs a simple top pressure assembly method, which has uniform pressure, good sealing effect, simple operation and convenient replacement of various components. More importantly, the area of the panel can be made larger, not only can the area of the panel be greater than 0.5 m 2 , but also can be made 3 m 2 or larger, which can effectively increase the total energy density of the battery and power.
  • the technical solution of the present invention is a pressing mechanism for assembling a redox flow battery, comprising a base, a plurality of unit panels, and a shroud, wherein the shroud is disposed at a plurality of the unit battery panels are disposed in the bracket, and an end plate is disposed at an end of the plurality of unit battery panels, and at least one jack pressure is disposed on the bracket The end plate is tightly pressed, and a plurality of the unit battery plates are pressed and fixed.
  • the bracket is composed of a longitudinal beam on both sides and at least two beams disposed on the longitudinal beam, the longitudinal beam is disposed on the machine The jack is disposed on the beam.
  • the technical feature is as follows: The top end of the jack is connected with a top frame, and the jack is pressed on the end plate by the top frame.
  • a plurality of brackets are arranged on the side members of the two sides, and the inner faces of the plurality of brackets abut against the end faces of the unit battery panels.
  • each of the longitudinal beams is provided with a plurality of longitudinal beam positioning holes, the beam can be moved along the longitudinal beam, and the beam is positioned by the longitudinal beam Hole positioning.
  • the pressing manner of the jack is pressed from one outer end, or the two outer ends are pressed, or the jack is placed at the intermediate outer end.
  • the jack is a hydraulic jack, or a screw jack, or a ratchet jack, or a connecting rod jack; the number is one, two or four.
  • a plurality of through holes are formed in the end plate.
  • the technical solution of the present invention is to arrange a battery stack formed by a plurality of liquid flow unit panels in a shroud, and to provide a rigid end plate at the end of the stack, and to be disposed at the end or the middle of the shroud
  • the jack may be a hydraulic or mechanical jack, which may be one, two or four jacks, which press the end plate; it may be pressed from the outer end of one side, the two outer ends are pressed or the jack is pressed in the middle, Thereby, the compaction between the liquid flow panels is uniform and reliable.
  • the battery is easy to install and easy to maintain. 3. Reduce the area of each component of the battery and save materials.
  • the present invention enables the fabrication of a large-flow flow battery pack, thereby enabling compaction of a large flow battery cell panel having a peripheral area greater than 0.5 m 2 to 6 m 2 . It can effectively increase the total energy density and power density of the battery.
  • the position of the moving jack can be adjusted to adjust the number of panels at will, and the user can adjust the selection as needed.
  • Figure 1-1 and Figure 1-2 show the structure of a plurality of bolt-and-pressure combined liquid-flow redox batteries.
  • FIG. 2 is a structural view of a pressing mechanism for assembling a redox flow battery of the present invention.
  • Figure 3-A, 3-B, and 3-C are schematic diagrams of the combination of the three pressing forces.
  • the above three figures are the top view directions, and the hollow arrows in the figure 3 indicate the direction of the pressing force.
  • the present embodiment is a larger flow battery stack having a cell length of 1. 2 x 1 m and an area of 1.2 m 2 .
  • a longitudinal beam 3 is disposed on both sides of the frame 17, and the longitudinal beam 3 is made of channel steel, the front end of the longitudinal beam 3 is provided with a jack beam 1, and the rear end is provided with a beam 16 to form a bracket.
  • the bracket formed by the longitudinal beam 3, the jack beam 1 and the beam 16 a plurality of unit battery panels 11 are disposed, and the assembled plurality of unit battery panels 11 form a battery stack 8, and the front end of the battery stack 8 has a positive electrode plate 7 The back end has a negative electrode plate 14.
  • the rear end of the rear electrode plate 14 is a rear end plate 15, the front end of the positive electrode plate 7 is a front end plate 6, the hydraulic jack 2 is disposed on the jack cross member 1, and the top end of the jack 2 is provided with a top frame 5.
  • the jack 2 is actuated to press the front end plate 6 at a time to press the entire battery stack 8.
  • a plurality of brackets 9 are provided on the side members 3 on both sides, and the inner surface of the bracket 9 abuts against the front end plate 6 and a plurality of unit battery panels 11 are flanked so that the plurality of unit panel 11 are pressed at a prescribed appropriate position.
  • the front and rear end plates 6, 15 are provided with a plurality of through holes, which save materials and reduce weight, but can ensure the specified strength.
  • Each of the longitudinal beams 3 is provided with a plurality of longitudinal beam positioning holes 4, and the transverse beams 1 and 16 can be moved back and forth along the longitudinal beams 3, and the transverse beams 1 and 16 can be positioned by the longitudinal beam positioning holes 4.
  • each board has at least 60 bolt holes, more than 60 long bolts, and more than 120 nuts from both ends. Tightening, not only the process is troublesome, the maintenance is cumbersome, and more importantly, it is difficult to ensure that the electro-hydraulic does not leak.
  • a hydraulic jack having a pressure of 5 tons is placed in the jack beam 1 and the stack of 40 unit plates is pressed by the top frame 5 and the front end plate 6, and the stack of up to 3 m is assembled.
  • the jack beam 1 can be moved back and forth in the positioning hole of the stringer to increase or decrease the number of adjustment unit panels.
  • the unit battery panel 11 When installing, the unit battery panel 11 is placed in the frame formed by the longitudinal beam and the beam, and the hydraulic jack 2 is actuated to be pressed at one time. When repairing, just loosen the jack 2 and directly lift the unit battery board 11 that needs to be repaired. After maintenance, directly hoist and insert the appropriate part to start the hydraulic jack. 2 The installation is completed after pressing, and the operation process is simple and effective.
  • the above example 1 is only a basic pressing method, and the connection position and the number of the beam and the longitudinal beam are adjusted, and the jack is arranged correspondingly, and the pile pressure mode of the plurality of brackets can be formed.
  • Figure 3-A shows the basic jack set at one end of the pressurization mode, and the shape of the bracket is U-shaped and rotated 90 ° counterclockwise.
  • Figure 3-B shows the two jacks pressed from the ends to the middle, and the shape of the bracket is 90° counterclockwise.
  • Figure 3-C shows the way in which the two jacks are placed in the middle to pressurize the ends.
  • the technical solution of the invention overcomes the deficiencies of the existing battery bolts to form a battery stack, and designs a simple jack compact assembly method, which has uniform pressure, good sealing effect, simple operation and convenient replacement of various components. More importantly, it is possible to enlarge the area of the panel, not only to make the area of the panel more than 0. 5 m 2 , but also to make 3 m 2 or more, which can effectively increase the total energy density of the battery and power.

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

Abstract

La présente invention concerne un mécanisme de pression destiné à assembler une batterie à flux redox, permettant de résoudre le problème causé par la pression de boulon dans l'état de la technique. La solution technique de la présente invention consiste en un mécanisme de pression destiné à assembler la batterie à flux redox, comprenant une base et de multiples unités de plaques de batterie; et un cadre enveloppant; le cadre enveloppant est disposé sur la base ; les extrémités des multiples unités de plaques de batterie sont pourvues de plaques d'extrémité ; les plaques d'extrémité sont pressées par au moins un vérin disposé sur le cadre enveloppant, de sorte que les multiples unités de plaques de batterie soient fixées. La solution technique de la présente invention permet de résoudre l'insuffisance de blocs de batterie existants assemblés dans un mode de connexion par boulon, et conçoit un mode d'assemblage simple par pression de vérin ; le mécanisme de pression présente une pression uniforme, un bon effet d'étanchéité, une utilisation simple et un remplacement facile de pièce, et de surcroît, peut agrandir la zone des plaques de batterie afin qu'elles soient supérieures à 0,5 m2 ou 3 m2, ou même plus, permettant ainsi d' améliorer efficacement la densité énergétique totale et la puissance de la batterie.
PCT/CN2012/085360 2012-01-04 2012-11-27 Mécanisme de pression destiné à assembler une batterie à flux rebox WO2013102387A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN2012200003735U CN202405372U (zh) 2012-01-04 2012-01-04 用于氧化还原液流电池组装的压紧机构
CN201210000204.6 2012-01-04
CN201220000373.5 2012-01-04
CN2012100002046A CN103199295A (zh) 2012-01-04 2012-01-04 用于氧化还原液流电池组装的压紧机构

Publications (1)

Publication Number Publication Date
WO2013102387A1 true WO2013102387A1 (fr) 2013-07-11

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PCT/CN2012/085360 WO2013102387A1 (fr) 2012-01-04 2012-11-27 Mécanisme de pression destiné à assembler une batterie à flux rebox

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WO (1) WO2013102387A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019060417A1 (fr) * 2017-09-19 2019-03-28 Phillips 66 Company Procédé de compression d'un empilement de piles à combustible à oxyde solide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2852410Y (zh) * 2005-11-18 2006-12-27 清华大学 氧化还原液流电池储能装置用的电池堆锁紧机构
US20080159842A1 (en) * 2006-12-29 2008-07-03 Doosan Heavy Industries & Construction Co., Ltd. Stack fastening device
CN102195009A (zh) * 2010-03-10 2011-09-21 北京普能世纪科技有限公司 液流电池堆的锁紧装置
CN202405372U (zh) * 2012-01-04 2012-08-29 崔骥 用于氧化还原液流电池组装的压紧机构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2852410Y (zh) * 2005-11-18 2006-12-27 清华大学 氧化还原液流电池储能装置用的电池堆锁紧机构
US20080159842A1 (en) * 2006-12-29 2008-07-03 Doosan Heavy Industries & Construction Co., Ltd. Stack fastening device
CN102195009A (zh) * 2010-03-10 2011-09-21 北京普能世纪科技有限公司 液流电池堆的锁紧装置
CN202405372U (zh) * 2012-01-04 2012-08-29 崔骥 用于氧化还原液流电池组装的压紧机构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019060417A1 (fr) * 2017-09-19 2019-03-28 Phillips 66 Company Procédé de compression d'un empilement de piles à combustible à oxyde solide

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