WO2012133747A1 - 電池用シール構造、電解液流通型電池用セルフレーム、電解液流通型電池用セルスタック、及び電解液流通型電池 - Google Patents
電池用シール構造、電解液流通型電池用セルフレーム、電解液流通型電池用セルスタック、及び電解液流通型電池 Download PDFInfo
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- WO2012133747A1 WO2012133747A1 PCT/JP2012/058537 JP2012058537W WO2012133747A1 WO 2012133747 A1 WO2012133747 A1 WO 2012133747A1 JP 2012058537 W JP2012058537 W JP 2012058537W WO 2012133747 A1 WO2012133747 A1 WO 2012133747A1
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- Prior art keywords
- battery
- frame
- cell
- packing
- frames
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 47
- 238000012856 packing Methods 0.000 claims abstract description 94
- 230000002093 peripheral effect Effects 0.000 claims abstract description 58
- 239000013013 elastic material Substances 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 239000003792 electrolyte Substances 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 5
- 241000135309 Processus Species 0.000 claims 1
- 239000008151 electrolyte solution Substances 0.000 description 21
- 238000005452 bending Methods 0.000 description 15
- 229940021013 electrolyte solution Drugs 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
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- 230000000052 comparative effect Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 229920002943 EPDM rubber Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 229910001456 vanadium ion Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910001430 chromium ion Inorganic materials 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- -1 iron ion Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
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- 239000000446 fuel Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
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- 239000004945 silicone rubber Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001432 tin ion Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
- H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
-
- 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
-
- 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
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
-
- 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
- H01M8/0276—Sealing means characterised by their form
-
- 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
- H01M8/18—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
- H01M8/24—Grouping of fuel cells, e.g. stacking of 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
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/242—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes comprising framed electrodes or intermediary frame-like gaskets
-
- 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
- H01M8/2455—Grouping of fuel cells, e.g. stacking of fuel cells with liquid, solid or electrolyte-charged reactants
-
- 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 battery seal structure excellent in assemblability, and an electrolyte flow type battery cell frame, an electrolyte flow type battery cell stack, and an electrolyte flow type battery including the battery seal structure.
- a redox flow battery performs charge / discharge by supplying a positive electrode electrolyte and a negative electrode electrolyte to a cell composed of a diaphragm and a positive electrode and a negative electrode facing each other through the diaphragm.
- the electrolytic solution an aqueous solution containing metal ions whose valence changes by oxidation and reduction is generally used.
- Redox flow batteries include, for example, iron-chromium redox flow batteries using an aqueous iron ion solution for the positive electrode electrolyte and an aqueous chromium ion solution for the negative electrode electrolyte, and a vanadium system using an aqueous vanadium ion solution for the positive and negative electrode electrolytes.
- Redox flow batteries are well known (see, for example, Patent Documents 1 to 3).
- FIG. 8 is a schematic diagram for explaining an electrolyte flow type battery (redox flow battery).
- the redox flow battery 100 includes a cell 110.
- the cell 110 is divided into a positive electrode cell 112 and a negative electrode cell 113 by a diaphragm 111 that can transmit ions.
- the positive electrode cell 112 contains a positive electrode 114, and the negative electrode cell 113 contains a negative electrode 115.
- the redox flow battery 100 includes an electrolyte tank 120 that stores an electrolyte solution for the positive electrode and the negative electrode, respectively, and an electrolyte solution between the electrolyte tank 120 and the battery cell 110 (the positive electrode cell 112 and the negative electrode cell 113).
- the circulation path 130 includes an outward piping 131 for sending an electrolytic solution from the electrolytic solution tank 120 to the battery cell 110 (positive electrode 112, negative electrode cell 113), and an electrolytic solution from the battery cell 110 (positive electrode cell 112, negative electrode cell 113). And a return pipe 132 that returns to the tank 120.
- the case where vanadium ion aqueous solution is used for the electrolyte solution of positive and negative electrodes is mentioned as an example.
- the solid line arrow in a battery cell in FIG. 8 shows a charging reaction
- the broken line arrow shows a discharging reaction.
- a cell of a redox flow battery is generally used in a form called a cell stack in which a plurality of cells each composed of a diaphragm and a positive electrode and a negative electrode facing each other through the diaphragm are stacked.
- FIG. 9 is a schematic diagram for explaining the cell stack.
- the cell stack 200 includes a cell frame 210 including a bipolar plate 211 and a frame body 212 that fixes the bipolar plate 211.
- the cell stack 200 is a cell in which a positive electrode 114, a diaphragm 111, and a negative electrode 115 are stacked. A plurality of layers are stacked with the cell frame 210 interposed therebetween.
- one cell is formed between the cell frames 210 (bipolar plates 211), and the space formed inside the opening of the cell frame 210 (frame body 212) has the bipolar plate 211 in between.
- the negative electrode (negative electrode cell) and the positive electrode (positive electrode cell) of adjacent cells are arranged.
- liquid supply manifolds 213 and 214 and drainage manifolds 215 and 216 that penetrate the front and back surfaces are formed alternately on the front and back surfaces.
- a guide groove for guiding the electrolytic solution to each electrode is provided.
- a protective plate made of plastic (not shown) is arranged to cover the guide groove so that the guide groove and the diaphragm 111 are not in direct contact with each other. It can be difficult.
- a pair of end plates 220 are arranged on both sides of a laminated body in which a plurality of cells each including the positive electrode 114, the diaphragm 111, and the negative electrode 115 are stacked with the cell frame 210 interposed therebetween, and tightened with bolts or the like.
- the mechanism 230 is configured to fasten both end plates 220 in the stacking direction of the stacked body (for example, paragraphs 0004 to 0005 of FIG. 9 and FIG. 9).
- a bipolar plate made of plastic carbon (eg, graphite-containing resin) and a frame made of plastic (eg, vinyl chloride) are frequently used.
- This cell frame is usually assembled by sandwiching a peripheral portion of a bipolar plate between a pair of frames, and welding and integrating the frame and the bipolar plate using an organic solvent (for example, paragraph of Patent Document 3). Etc.).
- a pair of frames constitute a frame.
- the seal structure which seals the space isolated by the bipolar plate formed inside the opening of a frame is formed by welding a frame and a bipolar plate with an organic solvent.
- a seal structure is formed that seals between the pair of frames and the peripheral portion of the battery plate member (bipolar plate) by welding using an organic solvent.
- the conventional battery seal structure has the following problems.
- the present invention has been made in view of the above circumstances, and one of its purposes is to provide a battery seal structure with excellent assemblability. Another object is to provide a cell frame for an electrolyte flow type battery, a cell stack for an electrolyte flow type battery, and an electrolyte solution type battery including the battery seal structure.
- the present invention provides an annular packing made of an elastic material having a pair of legs sandwiching the front and back of the peripheral part of a battery plate member and a base connecting the legs at the outer edge of the battery plate member.
- the battery sealing structure of the present invention includes a battery plate-like member and a pair of frames sandwiching the peripheral edge of the battery plate-like member, and seals a space formed inside the opening of each frame.
- the pair of frames are pressed from the front and back, and an annular groove that accommodates the peripheral portion of the battery plate member is formed between the opposing surfaces facing each other in the pressing direction.
- the annular packing which consists of an elastic material which is arrange
- This packing has a pair of legs that sandwich the front and back of the peripheral portion of the battery plate member, and a base that connects these legs at the outer edge of the battery plate member.
- the peripheral portion of the battery plate member is sandwiched between the pair of frames, and the frame and the battery plate member are integrated by pressing the pair of frames from the front and back.
- the packing is deformed by being pressed between the pair of frames and the peripheral portion of the battery plate member, so that they are in close contact with each other, ensuring high sealing performance. can do.
- the packing since the packing includes a pair of leg portions and a base portion that couples the leg portions, the packing can be attached by a simple operation of expanding and fitting the peripheral portion of the battery plate member. It can be securely attached without slipping out or coming off.
- the packing has a substantially V-shaped cross section, and the distance between the tips of the pair of leg portions extending from the base is larger than the distance between the roots (that is, the thickness of the peripheral edge of the battery plate member).
- the peripheral portion of the battery plate member is easily sandwiched between both leg portions, and the packing is easily fitted.
- the distance between the tips of both leg portions is preferably at least twice as large as the thickness of the peripheral portion of the battery plate-like member. Is more preferable.
- the packing is made of an elastic material, so that the packing expands and contracts following the battery plate member even if the battery plate member expands or contracts.
- the packing is effective to follow and relieve the stress. . Therefore, it is possible to prevent the frame or the battery plate member from being damaged. Therefore, the material of the battery plate member is not limited, and the options for the material of the battery plate member are expanded.
- the elastic material used for the packing examples include rubbers such as ethylene-propylene-diene rubber (EPDM), fluorine rubber, and silicone rubber, and may be appropriately selected depending on the application.
- EPDM ethylene-propylene-diene rubber
- fluorine rubber fluorine rubber
- silicone rubber examples include silicone rubber, and may be appropriately selected depending on the application.
- EPDM or fluororubber having excellent electrolyte solution resistance.
- At least one of the leg portions of the packing may have a protrusion on one or both of the outer surface facing the frame and the inner surface facing the battery plate member. Can be mentioned.
- Each leg is pressed between the frame and the battery plate member. According to this configuration, by having the protrusions on the legs, the protrusions are crushed and compressed and deformed when pressed, and the sealing performance can be improved. More specifically, when the battery sealing structure is adopted, the protrusions are compressed and deformed, so that a surface pressure is generated at a contact point between the frame and the battery plate member, and a high sealing function is exhibited.
- the dimensions of the legs and the number of protrusions are not particularly limited, and may be set as appropriate.
- the leg portion has a thickness (distance from the outer surface to the inner surface) in an uncompressed state.
- the width (the distance from the tip to the base) is set to 1.0 mm to 10 mm.
- the protrusions are provided in series in the circumferential direction of the annular packing, the number is 1 to 5 with respect to one surface of the leg portion, and the height is 0.1 mm to 0.5 mm in the uncompressed state. It is done.
- the contact surface pressure is determined by the compression amount (crushing rate) of the protrusions, and the contact surface pressure increases as the compression amount increases.
- the height of the protrusion in the above-described range, sufficient contact surface pressure is ensured to improve sealing performance, and damage or deformation of the frame or battery plate member due to excessive contact surface pressure is suppressed. be able to.
- frame or battery plate-shaped member increases over the width direction of a leg part, and it is possible to improve the reliability of sealing performance.
- the protrusion on the leg acts as a rib that reinforces the packing (leg part), and also has a function of retaining the shape.
- the protrusions of the leg portions may be provided on at least one of the pair of leg portions, and may be provided on both or only one. Further, the protrusions of the leg portions may be provided on either one of the outer surface and the inner surface of one leg portion, and may be provided on both surfaces or only on one surface. For example, one leg may have a protrusion on the outer surface, the other leg may have a protrusion on the inner surface, or a protrusion may be provided only on either the outer surface or the inner surface of both legs. Good.
- the protrusions When protrusions are provided on both the outer surface and the inner surface of one leg, the protrusions may be provided with the outer surface and the inner surface shifted in the width direction of the leg or at the same position in the width direction of the leg. May be. When the protrusions are provided on both legs, the positions of the protrusions may be different between one leg and the other leg, or the positions of the protrusions may be matched.
- At least one of the leg portions of the packing has a root portion extending linearly from the base portion and at least one bent portion formed from the root portion to the tip. Can be mentioned.
- Each leg is pressed between the frame and the battery plate member.
- the bent portion in the leg portion by having the bent portion in the leg portion, the bent state of the bent portion is expanded when pressed, and the plate is elastically deformed flat, thereby improving the sealing performance. More specifically, when the battery seal structure is used, the bending portion is elastically deformed, so that a surface pressure is generated at the contact point between the frame and the battery plate member, and a high sealing function is exhibited.
- the size / shape of the bent portion and the number of bent portions are not particularly limited, and may be set as appropriate.
- the leg portion has a thickness (distance from the outer surface to the inner surface) in an uncompressed state.
- the width (the distance from the tip to the base) is set to 1.0 mm to 10 mm.
- the bent parts shall be provided in series in the circumferential direction of the annular packing, the number shall be 1 to 5, and the bending angle shall be 80 ° to 150 ° and the bending height shall be 0.3 mm to 3 mm in the uncompressed state. Is mentioned.
- the shape of the bent portion may be V-shaped or U-shaped (arc-shaped, arc-shaped), and may be formed into a wave shape by forming a plurality of bent portions.
- the bending angle of the bent portion is an angle formed by two sides (surfaces) forming the bent portion. If the bending angle is too small, the bent portion may buckle when pressed. On the other hand, if the bending angle is too large, it is necessary to increase the width of the leg when the bending height is constant, and the tip of the leg may protrude from the annular groove when pressed.
- the bending height of the bent portion is a bent portion that is convex toward the outer surface facing the frame with respect to the root portion, and the apex of the bent portion from the inner surface facing the battery plate member at the root portion.
- the contact surface pressure is determined by the amount of compression of the bent portion (the amount of deformation of the bending height), and the contact surface pressure increases as the amount of compression increases.
- the bent portion includes those satisfying the following conditions. (1) It is formed of a first side portion that is continuous with the root portion and is inclined with respect to the root portion, and a second side portion that is continuous with the first side portion and is inclined with respect to the first side portion. ing. (2) The tip side of the second side portion extends to at least an extension line of the root portion. (3) The leg portion extends inward in the radial direction of the packing, and is not folded back to the base side (outward in the radial direction of the packing) at the bent portion.
- the above-mentioned packing that has a bent portion at the leg and exhibits a sealing function by utilizing elastic deformation of the bent portion is a type of packing (for example, an O-ring) that exhibits a sealing function by using compressive deformation.
- the distance between the frame on which the legs are arranged and the peripheral edge of the battery plate member that determines the amount of compression may vary due to manufacturing tolerances and assembly errors of these members.
- the change in the contact surface pressure due to the difference in the compression amount (the above-described variation in the distance) is small compared to the O-ring, and a stable contact surface pressure can be obtained.
- the sealing performance can be secured by the stable contact surface pressure, and the manufacturing tolerance and Since the assembly error can be absorbed, the manufacturing tolerance of each member can be designed large.
- the battery plate member may move relative to the frame due to stress caused by the difference in thermal expansion coefficient between the frame and the battery plate member.
- a stable contact surface pressure can be obtained regardless of the above-described variation in distance, and therefore the movement of the battery plate member is hardly hindered.
- an excessive contact surface pressure may be generated due to the above-described variation in distance, so that the movement of the battery plate member is inhibited, and due to the stress caused by the above-described difference in thermal expansion coefficient, There is a possibility that the battery plate member is damaged.
- the base of the packing has protrusions on at least one surface of the front and back facing the pair of frames.
- the base is pressed between a pair of frames. According to this configuration, by having the protrusion at the base, the protrusion is crushed and compressed and deformed when pressed, and the sealing performance can be improved. More specifically, when the battery sealing structure is adopted, the protrusions are compressed and deformed, so that a surface pressure is generated at the contact point with the frame, and a high sealing function is exhibited.
- the dimensions of the base and the number of protrusions are not particularly limited, and may be set as appropriate.
- the base portion has a thickness (distance from the front surface to the back surface) of 0.5 in an uncompressed state.
- the width (the distance from the inner peripheral edge to the outer peripheral edge of the battery plate-like member to the outer peripheral edge) is set to 0.5 mm to 1.5 mm.
- the protrusions are provided in series in the circumferential direction of the annular packing, the number of protrusions is 1 to 3 with respect to one surface of the leg, and the height is 0.1 mm to 0.5 mm in the uncompressed state. It is done.
- the contact surface pressure is determined by the compression amount (crushing rate) of the protrusion, and the contact surface pressure increases as the compression amount increases.
- the height of the protrusion By setting the height of the protrusion in the above-described range, it is possible to secure a sufficient contact surface pressure to improve the sealing performance, and to suppress damage and deformation of the frame due to excessive contact surface pressure. Moreover, when it has a some protrusion, the contact location with a flame
- the protrusion of the base part acts as a rib for reinforcing the packing (base part) and has a function of retaining the shape.
- the protrusion of the base may be provided on at least one surface of the front and back, and may be provided on both surfaces or only on one surface.
- the protrusions may be provided with the front and back surfaces shifted in the width direction of the base, or may be provided at the same position in the width direction of the base.
- the cell frame for an electrolyte flowing type battery includes a battery plate member and a pair of frames sandwiching the peripheral edge of the battery plate member.
- the battery plate member is a bipolar plate and includes the battery seal structure of the present invention described above.
- the packing is made of an elastic material, as described above, the packing can relieve stress concentration at the boundary between the frame and the bipolar plate and prevent the frame or the bipolar plate from being damaged. Therefore, the material of the bipolar plate is not limited, and the choice of the material of the bipolar plate is expanded. For example, in addition to plastic carbon containing about 10% to 50% by mass of graphite, plastic carbon having a high graphite content (for example, 60% by mass or more) or a carbon plate made of only graphite can be easily used for the bipolar plate. is there.
- the cell stack for an electrolyte flow type battery includes a laminate in which a plurality of cells each including a diaphragm and a positive electrode and a negative electrode facing each other through the diaphragm are stacked with a cell frame interposed therebetween.
- the cell frame is the above-described cell frame for an electrolyte flow type battery of the present invention.
- the present invention includes a pair of end plates disposed at both ends of the laminate, and a tightening mechanism for fastening both end plates in the stacking direction of the laminate.
- the cell frame is the above-described cell frame of the present invention, it is excellent in assemblability and prevents damage due to stress concentration at the boundary between the frame constituting the cell frame and the bipolar plate. be able to. Further, by tightening with the end plate and the tightening mechanism, the pair of frames constituting the cell frame can be pressed from the front and back.
- the electrolyte flow type battery of the present invention is characterized by including the above-described cell stack for the electrolyte flow type battery of the present invention.
- a redox flow battery As an embodiment of the electrolyte flow type battery of the present invention, a redox flow battery can be mentioned.
- the redox flow battery is not particularly limited, and for example, the positive and negative electrode electrolytes are any of the following (1) to (2).
- Each of the positive and negative electrolyte solutions contains vanadium ions.
- the positive electrode electrolyte contains iron ions, and the negative electrode electrolyte contains at least one metal ion selected from vanadium ions, chromium ions, zinc ions, and tin ions.
- the battery sealing structure according to the present invention can ensure high sealing performance while being excellent in assemblability by using an annular packing made of an elastic material having a pair of leg portions and a base portion connecting the leg portions. it can. In addition, damage due to stress concentration at the boundary between the frame and the battery plate member can be prevented, and options for the material of the battery plate member are expanded. Further, the cell frame for the electrolyte flow type battery of the present invention, the cell stack for the electrolyte flow type battery, and the electrolyte flow type battery have the above-described battery seal structure of the present invention, so that the assembly is excellent. Damage due to stress concentration at the boundary between the frame and the bipolar plate can be prevented, and the choice of materials for the bipolar plate is expanded.
- FIG. 3 is a schematic partially enlarged cross-sectional view for explaining a cell stack including the cell frame according to Embodiment 1.
- FIG. 4 is a schematic partially enlarged cross-sectional view for explaining packing used in the cell frame according to Embodiment 1.
- FIG. It is a general
- FIG. 6 is a schematic partially enlarged cross-sectional view for explaining an example of a state after assembling of a cell frame according to Embodiment 2.
- FIG. It is a general
- FIG. 1 is a diagram showing a cell stack including a cell frame 10 according to the first embodiment.
- a plurality of cells each composed of a diaphragm 111, a positive electrode 114 and a negative electrode 115 facing each other through the diaphragm 111 are stacked with the cell frame 10 interposed therebetween. Since the configuration is the same as that of the cell stack 200 described with reference to FIG. 9, the description thereof is omitted here.
- the cell frame 10 includes a battery plate member (bipolar plate) 11, a pair of frames 12 a and 12 b, and a packing 20.
- a battery plate member bipolar plate
- a pair of frames 12 a and 12 b and a packing 20.
- the bipolar plate 11 has a rectangular plate shape, for example, plastic carbon or carbon plate is used.
- the thickness is designed to be 0.6 mm.
- Each of the frames 12a and 12b has a rectangular frame shape, for example, made of vinyl chloride. In this example, they have the same L-shaped cross section and are arranged symmetrically with the bipolar plate 11 in between.
- the cross section referred to here is a cross section orthogonal to the circumferential direction of the frames 12a and 12b.
- the frames 12a and 12b sandwich the peripheral edge of the bipolar plate 11 and are pressed from the front and back sides (here, the upper side is “front side” and the lower side is “back side” in FIG. 1).
- a step surface 13 is formed on each of the opposing surfaces facing each other in the pressing direction of the frames 12a and 12b so that the thickness of the inner peripheral edge portion is thin, and an annular shape is formed between the opposing surfaces of the frames 12a and 12b.
- the groove 14 is formed. The peripheral edge of the bipolar plate 11 is accommodated in the annular groove 14.
- the packing 20 has a rectangular ring shape and is made of, for example, an elastic material such as EPDM or fluororubber.
- the packing 20 is formed of EPDM.
- the packing 20 is fitted and attached to the peripheral edge of the bipolar plate 11, is disposed in the annular groove 14, and is in pressure contact between the frames 12a and 12b and the peripheral edge of the bipolar plate 11.
- the packing 20 has a pair of leg portions 21 that sandwich the front and back of the peripheral edge portion of the bipolar plate 11, and a base portion 22 that connects the leg portions 21 at the outer edge of the bipolar plate 11.
- the leg portion 21 has an outer surface facing the frame 12a (12b) and an inner surface facing the bipolar plate 11, and the base portion 22 has a front surface facing the frame 12a and a back surface facing the frame 12b.
- the leg portion 21 and the base portion 22 are integrally formed.
- FIG. 2 is a view showing the packing before assembling the cell frame.
- the packing 20 has a substantially V-shaped cross section, and a protrusion 23 is provided on each of the leg portion 21 and the base portion 22.
- the cross section referred to here is a cross section orthogonal to the circumferential direction of the packing 20.
- both the leg portions 21 are provided with projections 23, and both leg portions 21 are provided with projections 23 on both the outer surface and the inner surface, and the base portion 21 also has projections 23 on both the front surface and the back surface. Is provided.
- both the leg portion 21 and the base portion 22 projections 23 are provided on both surfaces at the same position in the width direction.
- the positions of the protrusions 23 in both the leg portions 21 are the same, and the leg portions 21 are symmetrical with each other.
- the protrusions 23 of the leg portion 21 and the base portion 22 are formed in series along the circumferential direction of the annular packing 20.
- the leg portion 21 when the packing 20 is in an uncompressed state, the leg portion 21 is designed with a thickness T1 of 0.3 mm, a width W1 of 3.0 mm, and a height H1 of the projection 23 of the leg portion 21 of 0.3 mm, and the base portion 22 Is designed such that the thickness T2 is 1.0 mm, the width W2 is 1.0 mm, and the height H2 of the protrusion 23 of the base 22 is 0.3 mm. Further, the distance C1 between the bases of the pair of leg portions 21 extending from the inner peripheral edge of the base portion 22 is designed to be 0.6 mm.
- the assembly procedure of the cell frame 10 shown in FIG. 1 will be described with reference to FIG.
- the diameter of the packing 20 is increased, and the peripheral portion of the bipolar plate 11 is sandwiched between both leg portions 21, and the packing 20 is attached to the peripheral portion of the bipolar plate 11 (see FIG. 3A).
- the peripheral portion of the bipolar plate 11 with the packing 20 attached is sandwiched between the pair of frames 12a and 12b, and the frames 12a and 12b are pressed from the front and back (see FIG. 3B. Indicates the pressing direction).
- the packing 20 is deformed by being pressed between the frames 12a and 12b and the peripheral portion of the bipolar plate 11 and is in close contact with both, and a space (bipolar) formed in the opening of each frame 12a and 12b.
- a battery sealing structure is formed that seals a space (see FIG. 1) in which the negative electrode 115 and the positive electrode 114 are arranged with the plate 11 interposed therebetween. Further, by having the protrusions 23 on the leg 21 and the base 22, when the packing 20 is pressed, the protrusions 23 on the leg 21 and the base 22 are crushed and the sealing performance can be improved.
- the width of the entire packing 20 is shorter than the width of the stepped surface 13 (annular groove 14) of the frames 12a and 12b, and when the packing 20 is disposed in the annular groove 14, the outer peripheral surface of the base 22 is The tip of the leg 21 does not protrude from the annular groove 14 without contacting the bottom surface of the annular groove 14. Therefore, when the frames 12a and 12b are pressed in the direction of the white arrow in FIG. 3B and the packing 20 is pressed, the leg 21 and the base 22 are compressed and the width direction (the black arrow in FIG. Even if it extends in the direction), it can escape to the space in the annular groove 14. By securing such a relief allowance, it is easy to prevent abnormal deformation of the packing 20 even if the pressing load is increased.
- the sealing structure of the cell frame according to the first embodiment described above does not require welding work, can be a battery sealing structure that does not depend on the skill of the operator, and is excellent in assemblability.
- the packing is deformed by being pressed between the frame and the peripheral edge of the bipolar plate, and is closely adhered to both, ensuring a high sealing property, and having a protrusion on the leg portion or the base portion, thereby improving the sealing property. Can be increased.
- the protrusion of the leg or base part acts as a rib that reinforces the packing, and also has a function of retaining the shape.
- the packing can be attached by a simple operation that only fits into the peripheral edge portion of the bipolar plate, and can be reliably attached without being displaced or detached by having the leg portion and the base portion.
- this seal structure allows the packing to expand and contract following the bipolar plate even if the bipolar plate expands or contracts. For this reason, the packing can relieve stress concentration at the boundary between the frame and the bipolar plate and prevent the frame or the bipolar plate from being damaged. Therefore, the material of the bipolar plate is not limited, and the choice of the material of the bipolar plate is expanded.
- a cell stack provided with such a cell frame, and an electrolyte flow type battery (redox flow battery) provided with this cell stack are excellent in assemblability and at the boundary between the frame constituting the cell frame and the bipolar plate. Damage due to stress concentration can be prevented. Further, the electrolyte flow type battery (redox flow battery) can operate stably even when installed in an environment where the operating conditions of the battery change rapidly.
- FIG. 4 shows the packing before assembling the cell frame.
- the packing 20 has a substantially V-shaped cross section, the leg portion 21 is provided with a bent portion 25, and the base portion 22 is provided with a protrusion 23.
- the cross section referred to here is a cross section orthogonal to the circumferential direction of the packing 20.
- both leg portions 21 are provided with bent portions 25, and both leg portions 21 are provided with root portions 26 extending linearly from the base portion 22.
- the bent portions 25 are formed from the root portions 26 to the tips.
- the leg portions 21 are symmetrical with each other. Further, one bent portion 25 of the leg portion 21 is provided so as to protrude outward from the root portion 26 as a reference.
- the protrusions 23 of the base 22 are provided one on each side (two in total on both sides), and the protrusions 23 are provided on both sides of the base 22 at the same position in the width direction.
- the bent portion 25 of the leg portion 21 and the protrusion 23 of the base portion 22 are formed in series along the circumferential direction of the annular packing 20.
- the leg portion 21 when the packing 20 is in an uncompressed state, the leg portion 21 is designed to have a thickness T1 of 0.3 mm, a bending angle ⁇ and a bending height H3 at the bending portion 25 of 98 ° and 0.99 mm, respectively, and the base 22 Is designed to have a thickness T2 of 1.0 mm, a width W2 of 1.0 mm, and a height H2 of the protrusion 23 of 0.3 mm. Further, the distance C1 between the bases of the pair of leg portions 21 extending from the inner peripheral edge of the base portion 22 is designed to be 0.6 mm.
- the assembly procedure of the cell frame will be described with reference to FIG. First, the diameter of the packing 20 is increased, and the peripheral portion of the bipolar plate 11 is sandwiched between both leg portions 21, and the packing 20 is attached to the peripheral portion of the bipolar plate 11 (see FIG. 5A). Next, the peripheral portion of the bipolar plate 11 with the packing 20 attached is sandwiched between the pair of frames 12a and 12b, and the frames 12a and 12b are pressed from the front and back (see FIG. 5B). Indicates the pressing direction).
- the packing 20 is deformed by being pressed between the frames 12a and 12b and the peripheral portion of the bipolar plate 11 and is in close contact with both, and a space (bipolar) formed in the opening of each frame 12a and 12b.
- a battery sealing structure is formed that seals a space (see FIG. 1) in which the negative electrode 115 and the positive electrode 114 are arranged with the plate 11 interposed therebetween.
- the bent portion 25 on the leg portion 21 and the protrusion 23 on the base portion 22 when the packing 20 is pressed, the bent portion 25 of the leg portion 21 is elastically deformed in a straight line, and the protrusion of the base portion 22 Sealing performance can be improved by compressing and deforming 23 by being crushed.
- the width of the entire packing 20 is shorter than the width of the step surface 13 (annular groove 14) of the frames 12a and 12b, as in the first embodiment.
- the outer peripheral surface of the base portion 22 does not contact the bottom surface of the annular groove 14, and the tip of the leg portion 21 does not protrude from the annular groove 14. Therefore, when the packing 12 is pressed by pressing the frames 12a and 12b in the direction of the white arrow in FIG. 5B, the leg portion 21 and the base portion 22 are compressed, and the width direction (the black arrow in FIG. 5B). Even if it extends in the direction), it can escape to the space in the annular groove 14. By securing such a relief allowance, it is easy to prevent abnormal deformation of the packing 20 even if the pressing load is increased.
- the cell frame seal structure according to the second embodiment described above can achieve the same effects as the cell frame seal structure according to the first embodiment, and further has the following effects.
- the change in the contact surface pressure due to the difference in the compression amount is small, and a stable contact surface pressure can be obtained.
- the distance d between the frame 12a (12b) on which the leg portion 21 of the packing 20 is disposed and the peripheral edge portion of the bipolar plate 11 due to manufacturing tolerances or assembly errors of the frame 12a (12b) or the bipolar plate 11 However, as shown in FIG. As a specific example, when the design value of the distance d is 0.3 mm, it is assumed that the actual distance d is 0.8 mm due to manufacturing tolerances.
- the frame 12a (12b) is caused by elastic deformation of the bent portion 25 as shown in FIG. ) And the contact point with the bipolar plate 11, surface pressure is generated, and the sealing function can be exhibited.
- Table 1 shows the relationship between the distance d and the contact surface pressure in the cell frame seal structure (Test Example 1) according to the second embodiment.
- the relationship between the distance d and the contact surface pressure in a seal structure (Comparative Example 1) in which an O-ring is disposed between the frame and the peripheral edge of the bipolar plate instead of the packing having the bent portion at the leg portion. Is also shown in Table 1.
- each contact surface pressure is shown as a relative value where the contact surface pressure is 1 when the distance d in Test Example 1 is 0.3 mm.
- the thickness of the bent portion was 0.25 mm
- Comparative Example 1 the diameter of the O-ring was 0.55 mm.
- the sealing performance can be secured by the stable contact surface pressure, and the manufacturing tolerance and assembly error can be absorbed, so that the manufacturing tolerance of each member can be designed large.
- the distance d when the distance d is decreased, the contact surface pressure is significantly increased, and an excessive contact surface pressure is generated, so that the frame or the bipolar plate may be damaged or deformed.
- the distance d when the distance d is 0.55 mm (the diameter of the O-ring) or more, the contact surface pressure becomes 0 and sealability cannot be obtained. That is, in Comparative Example 1, the change in the contact surface pressure with respect to the change in the distance d is large, and it is necessary to strictly manage the distance d.
- Test Example 1 since it is possible to suppress the occurrence of excessive contact surface pressure due to the variation in the distance d described above, for example, stress is generated due to the difference in thermal expansion coefficient between the frame and the bipolar plate during battery operation. When this is done, the bipolar plate is easy to move relative to the frame. Therefore, it is easy to avoid the bipolar plate from being damaged by the stress resulting from the difference in thermal expansion coefficient. On the other hand, in Comparative Example 1, since an excessive contact surface pressure may occur, the movement of the bipolar plate is hindered, and the bipolar plate may be damaged by the stress caused by the above-described difference in thermal expansion coefficient. Therefore, in Test Example 1, since the risk of damaging the bipolar plate is further reduced, the required strength of the bipolar plate can be further reduced, and the choice of materials for the bipolar plate is further expanded.
- one frame 12a has a flat frame shape, and the facing surface of the frame 12a facing the frame 12b is a plane.
- the other frame 12b has a substantially L-shaped cross section, and a step surface 13 is formed on the facing surface of the frame 12b facing the frame 12a so that the inner peripheral edge portion is thin.
- the width of the frame 12a is substantially equal to the width of the step surface 13 of the frame 12b.
- An annular groove 14 is formed between the opposed surfaces of the frame 12a and the frame 12b, and the peripheral portion of the bipolar plate 11 with the packing 20 attached is accommodated in the annular groove 14.
- one frame 12a has a flat frame shape, and the facing surface of the frame 12a facing the frame 12b is a plane. Further, the other frame 12b has a substantially L-shaped cross section, and the first surface of the frame 12b facing the frame 12a is gradually reduced in thickness from the outer peripheral edge side toward the inner peripheral edge side. A step surface 13a and a second step surface 13b are formed. Further, the width of the frame 12a is substantially equal to the combined width of the first and second step surfaces 13a and 13b of the frame 12b, and a part of the frame 12a contacts the first step surface 13a of the frame 12b. An annular groove 14 is formed between the opposed surfaces of the frame 12a and the frame 12b, and the peripheral portion of the bipolar plate 11 with the packing 20 attached is accommodated in the annular groove 14.
- the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
- the materials of the bipolar plate, the frame and the packing constituting the cell frame may be appropriately changed.
- the dimensions of the leg and base of the packing and the number and position of the protrusions provided on the leg or base may be changed as appropriate.
- the battery seal structure of the present invention can be used for a seal structure of various batteries such as an electrolyte flow type battery (redox flow battery) and a fuel cell.
- This battery seal structure can be suitably used for an electrolytic solution flow type battery cell frame, an electrolytic solution flow type battery cell stack, and an electrolytic solution flow type battery.
- the electrolyte flow type battery of the present invention can be suitably used as a large capacity storage battery for load leveling and output stabilization.
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Abstract
Description
(1)根元部に連続し、かつ根元部に対して傾斜する第1辺部と、この第1辺部に連続し、かつ第1辺部に対して傾斜する第2辺部とから形成されている。
(2)上記第2辺部の先端側が根元部の少なくとも延長線上まで延びている。
(3)脚部はパッキンの径方向内方に向かって延び、屈曲部で基部側(パッキンの径方向外方)に折り返されない。
(1)正負極の電解液はそれぞれ、バナジウムイオンを含有する。
(2)正極電解液は、鉄イオンを含有し、負極電解液は、バナジウムイオン、クロムイオン、亜鉛イオン、及びスズイオンから選択される少なくとも一種の金属イオンを含有する。
図1は、実施の形態1に係るセルフレーム10を備えるセルスタックを示す図である。このセルスタックは、隔膜111、隔膜111を介して対向する正極電極114及び負極電極115とからなるセルを、セルフレーム10を挟んで複数積層しており、セルフレーム10を除いてその他の構成は、図9を用いて説明したセルスタック200と同様の構成であるので、ここでは説明を省略する。
実施の形態1では、図1~3を用いて、脚部に突起を有するパッキンを用いたセルフレームのシール構造について説明した。この実施の形態2では、図4~6を用いて、脚部に屈曲部を有するパッキンを用いたセルフレームのシール構造について説明する。なお、実施の形態2において、セルスタック(セルフレーム)の概略構成や、セルフレームの構成部材である双極板、一対のフレーム及びパッキンの基本構成は、実施の形態1と同様であるので、説明を省略する。
上記した実施の形態に係るセルフレーム10では、一対のフレーム12a,12bが段差面13を有する同一形状とし、且つ、対称配置されている場合を例に説明したが、一対のフレームの形状は互いに異なる形状としてもよい。
11 電池用板状部材(双極板) 12a,12b フレーム
13 段差面 13a 第1段差面 13b 第2段差面
14 環状溝
20 パッキン
21 脚部 22 基部 23 突起
25 屈曲部 26 根元部
100 電解液流通型電池(レドックスフロー電池)
110 セル
111 隔膜 112 正極セル 113 負極セル
114 正極電極 115 負極電極
120 電解液タンク
130 循環経路 131 往路配管 132 復路配管
140 循環ポンプ
200 セルスタック
210 セルフレーム
211 双極板 212 枠体
213,214 給液用マニホールド
215,216 排液用マニホールド
220 エンドプレート
230 締結機構
Claims (8)
- 電池用板状部材と、前記電池用板状部材の周縁部を挟む一対のフレームと、を備え、前記各フレームの開口の内部に形成される空間をシールする電池用シール構造であって、
前記一対のフレームは、表裏から押圧され、
前記一対のフレームには、押圧方向に互いに対向する対向面の間に、前記電池用板状部材の周縁部を収容する環状の溝が形成されており、
前記環状溝内に配置され、前記一対のフレームと前記電池用板状部材の周縁部との間で圧接される弾性材料からなる環状のパッキンを備え、
このパッキンは、
前記電池用板状部材の周縁部の表裏を挟持する一対の脚部と、
前記電池用板状部材の外縁でこれら脚部を連結する基部と、を有することを特徴とする電池用シール構造。 - 前記パッキンの前記脚部の少なくとも一方が、前記フレームに対向する外面又は前記電池用板状部材に対向する内面のいずれか一方若しくは両方に、突起を有することを特徴とする請求項1に記載の電池用シール構造。
- 前記パッキンの前記脚部の少なくとも一方が、前記基部から直線状に延びる根元部と、この根元部から先端にかけて形成された少なくとも1つの屈曲部を有することを特徴とする請求項1に記載の電池用シール構造。
- 前記パッキンの前記基部が、前記一対のフレームに対向する表裏の少なくとも一方の面に、突起を有することを特徴とする請求項1~3のいずれか一項に記載の電池用シール構造。
- 電池用板状部材と、前記電池用板状部材の周縁部を挟む一対のフレームと、を備える電解液流通型電池用セルフレームであって、
前記電池用板状部材が、双極板であり、
請求項1~4のいずれか一項に記載の電池用シール構造を備えることを特徴とする電解液流通型電池用セルフレーム。 - 隔膜と、隔膜を介して対向する正極電極及び負極電極とからなるセルがセルフレームを挟んで複数積層された積層体を備える電解液流通型電池用セルスタックであって、
前記セルフレームが請求項5に記載の電解液流通型電池用セルフレームであり、
前記積層体の両端に配置される一対のエンドプレートと、
前記両エンドプレートを前記積層体の積層方向に締め付ける締付機構と、を備えることを特徴とする電解液流通型電池用セルスタック。 - 請求項6に記載の電解液流通型電池用セルスタックを備えることを特徴とする電解液流通型電池。
- レドックスフロー電池であることを特徴とする請求項7に記載の電解液流通型電池。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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AU2012233365A AU2012233365B2 (en) | 2011-03-31 | 2012-03-30 | Battery Sealing Structure, Electrolyte Circulation Type Battery Cell Frame, Electrolyte Circulation Type Battery Cell Stack, and Electrolyte Circulation Type Battery |
US13/982,900 US9172069B2 (en) | 2011-03-31 | 2012-03-30 | Battery sealing structure, electrolyte circulation type battery cell frame, electrolyte circulation type battery cell stack, and electrolyte circulation type battery |
EP12765610.6A EP2693548B1 (en) | 2011-03-31 | 2012-03-30 | Battery sealing structure, cell frame for redox flow battery, cell stack for redox flow battery, and redox flow battery |
CN201280016603.XA CN103460477B (zh) | 2011-03-31 | 2012-03-30 | 电池密封结构、电解液循环型电池单元框架、电解液循环型电池单元堆及电解液循环型电池 |
KR1020137024391A KR20140018902A (ko) | 2011-03-31 | 2012-03-30 | 전지용 시일 구조, 전해액 유통형 전지용 셀 프레임, 전해액 유통형 전지용 셀 스택, 및 전해액 유통형 전지 |
CA2831850A CA2831850A1 (en) | 2011-03-31 | 2012-03-30 | Battery sealing structure, electrolyte circulation type battery cell frame, electrolyte circulation type battery cell stack, and electrolyte circulation type battery |
IN7207DEN2013 IN2013DN07207A (ja) | 2011-03-31 | 2012-03-30 |
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JP2011077017 | 2011-03-31 | ||
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JP2012057244A JP5477672B2 (ja) | 2011-03-31 | 2012-03-14 | 電解液流通型電池用セルフレーム、電解液流通型電池用セルスタック、及び電解液流通型電池 |
JP2012-057244 | 2012-03-14 |
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US (1) | US9172069B2 (ja) |
EP (1) | EP2693548B1 (ja) |
JP (1) | JP5477672B2 (ja) |
KR (1) | KR20140018902A (ja) |
CN (1) | CN103460477B (ja) |
AU (1) | AU2012233365B2 (ja) |
CA (1) | CA2831850A1 (ja) |
IN (1) | IN2013DN07207A (ja) |
TW (1) | TWI517480B (ja) |
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CN105742645A (zh) * | 2014-12-08 | 2016-07-06 | 中国科学院大连化学物理研究所 | 一种适用于液流电池圆形电堆的电极框结构 |
EP3062377A1 (en) * | 2013-10-23 | 2016-08-31 | Sumitomo Electric Industries, Ltd. | Redox flow battery and redox flow battery supply-exhaust plate |
JP2017134954A (ja) * | 2016-01-26 | 2017-08-03 | 住友電気工業株式会社 | 電池、及びシール材 |
WO2017134780A1 (ja) * | 2016-02-03 | 2017-08-10 | 住友電気工業株式会社 | レドックスフロー電池 |
WO2018105178A1 (ja) * | 2016-12-07 | 2018-06-14 | 日本碍子株式会社 | 電極/セパレータ積層体及びそれを備えたニッケル亜鉛電池 |
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CN105742645A (zh) * | 2014-12-08 | 2016-07-06 | 中国科学院大连化学物理研究所 | 一种适用于液流电池圆形电堆的电极框结构 |
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JPWO2018105178A1 (ja) * | 2016-12-07 | 2019-06-24 | 日本碍子株式会社 | 電極/セパレータ積層体及びそれを備えたニッケル亜鉛電池 |
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Also Published As
Publication number | Publication date |
---|---|
TWI517480B (zh) | 2016-01-11 |
AU2012233365A1 (en) | 2013-09-05 |
AU2012233365B2 (en) | 2016-09-22 |
CN103460477B (zh) | 2016-08-24 |
EP2693548A1 (en) | 2014-02-05 |
IN2013DN07207A (ja) | 2015-05-15 |
KR20140018902A (ko) | 2014-02-13 |
EP2693548B1 (en) | 2018-05-23 |
US20130309540A1 (en) | 2013-11-21 |
US9172069B2 (en) | 2015-10-27 |
JP2012216510A (ja) | 2012-11-08 |
TW201246660A (en) | 2012-11-16 |
EP2693548A4 (en) | 2014-12-24 |
CN103460477A (zh) | 2013-12-18 |
CA2831850A1 (en) | 2012-10-04 |
JP5477672B2 (ja) | 2014-04-23 |
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