CN210489738U - Vanadium redox flow battery pile - Google Patents
Vanadium redox flow battery pile Download PDFInfo
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- CN210489738U CN210489738U CN201921239145.1U CN201921239145U CN210489738U CN 210489738 U CN210489738 U CN 210489738U CN 201921239145 U CN201921239145 U CN 201921239145U CN 210489738 U CN210489738 U CN 210489738U
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- flow frame
- sealing
- liquid flow
- frame plate
- electrode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
A vanadium redox flow battery pile relates to the battery sealing field. The liquid flow frame plate is integrally cast and formed with a limiting strip and a parallel sealing line, and the limiting strip can be used for accurately positioning the sealing ring, so that the hidden trouble of liquid leakage caused by deformation or displacement of the sealing ring due to uneven extrusion of the liquid flow frame plate is effectively prevented; the parallel sealing lines on the liquid flow frame plate increase the contact area and the contact pressure between the liquid flow frame plate and the electrode, so that the two parts are in closer contact; the electrode is externally sleeved with the annular sealing strip with the U-shaped section, so that the sealing ring can be fixed around the electrode without falling off, the possibility that electrolyte can flow out from a gap between the conducting plate and the sealing ring is solved, and the sealing performance of the electrode is enhanced.
Description
Technical Field
The utility model relates to a battery seal field, in particular to vanadium redox flow battery pile.
Background
The existing all-vanadium redox flow battery pile is composed of a single battery series connection group 1, a pile electrode 2, an end pressing plate 3, a fixing rod 4 and a pipeline interface 5 as shown in fig. 1 and fig. 2. The monolithic battery series group 1 is formed by connecting a plurality of monolithic batteries in series. As shown in fig. 2, the monolithic cell structure is composed of a conductive plate 101, a flow frame plate 102, an electrode 103, an ion exchange membrane 105, an electrode 106, a flow frame plate 107, and a conductive plate 108. The electrode 103 is formed of a unitary piece of graphite felt and is mounted within the flow frame plate 102 between the ion exchange membrane 105 and the conductive plate 101. The main problems of the method are as follows:
liquid easily leaks between the two liquid flow frame plates 102 and 107. After the two liquid flow frame plates 102 and 107 are sealed by the sealing ring 104, the two liquid flow frame plates 102 and 107 are pressed against each other to cause the deformation and even displacement of the sealing ring 104, so that the liquid seepage is easy to occur after long-term use.
Liquid easily leaks between the electrode 103 and the flow frame plate 102, and between the electrode 106 and the flow frame plate 107. The contact area between the electrode 103 and the flow frame plate 102 and between the electrode 106 and the flow frame plate 107 is small due to the large pressure applied thereto, and liquid leakage is likely to occur.
Leakage is likely to occur between the electrode 103 and the flow frame plate 107. In the existing mode, a sealing strip is respectively pasted at the positions where the electrodes 103 and 106 are contacted with the liquid flow frame plates 102 and 107 at two sides, and the two sealing strips are separated, so that the sealing strips are loose and easy to deform in production and use, and the risk of liquid seepage exists.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a vanadium redox flow battery pile.
The utility model adopts the technical proposal that: a vanadium redox flow battery pile is composed of a single battery series group, pile electrodes, an end pressure plate, a fixed rod and a pipeline interface, wherein the single battery series group is composed of a plurality of single batteries which are connected in series, each single battery is composed of a conductive plate, a hollow flow frame plate, electrodes and an ion exchange membrane, a sealing ring is assembled on the ion exchange membrane in a pressing way, and the technical key points are that,
the edge of the front side of the liquid flow frame plate is provided with a limiting strip, and the limiting strip is used for limiting the sealing rings at the joint part of the two liquid flow frame plates;
the electrode is sleeved in a sealing strip with a U-shaped section, and the sealing strip seals the periphery of the electrode;
parallel sealing lines are arranged on the back of the liquid flow frame plate, and after the electrode and the liquid flow frame plate are assembled, the parallel sealing lines are in pressing contact with the sealing strips to seal the electrode and the liquid flow frame plate.
In the scheme, the limiting strip and the liquid flow frame plate are integrally cast and formed.
In the scheme, the parallel sealing lines and the liquid flow frame plate are integrally cast and formed.
The utility model has the advantages that: according to the vanadium redox flow battery pile, the liquid flow frame plate is integrally cast and formed with the limiting strips and the parallel sealing lines, the sealing rings can be accurately positioned by utilizing the limiting strips, and the hidden liquid leakage danger caused by deformation or displacement of the sealing rings due to uneven extrusion of the liquid flow frame plate is effectively prevented; the parallel sealing lines on the liquid flow frame plate increase the contact area and the contact pressure between the liquid flow frame plate and the electrode, so that the two parts are in closer contact; the electrode is externally sleeved with the annular sealing strip with the U-shaped section, so that the sealing ring can be fixed around the electrode without falling off, the possibility that electrolyte can flow out from a gap between the conducting plate and the sealing ring is solved, and the sealing performance of the electrode is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a vanadium redox flow battery cell stack according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a single cell in an embodiment of the present invention;
FIG. 3 is a schematic structural view of a position-limiting strip on a liquid flow frame plate according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the liquid flow frame plate and electrode connection in an embodiment of the present invention; (ii) a
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 4;
the numbers in the figure illustrate the following: 1 single-chip battery series group, 101 conducting plate, 102 liquid flow frame plate, 1021 limiting strip, 1022 sealing line, 103 electrode, 104 sealing ring, 105 ion exchange membrane, 106 electrode, 107 liquid flow frame plate, 108 conducting plate, 2 electric pile electrode, 3 end pressing plate, 4 fixing rod, 5 pipeline interface, 6 electric pile electrode, 7 end pressing plate, 8 fixing rod, 9 pipeline interface and 10 sealing strip.
Detailed Description
The above objects, features and advantages of the present invention will be more clearly understood and the present invention will be explained in more detail with reference to fig. 3 to 6 and the following detailed description.
The vanadium redox flow battery pile in the embodiment is composed of an end pressing plate 3, a pile electrode 2, a single-cell serial group 1, a pile electrode 6 and an end pressing plate 7 which are sequentially arranged together, and a fixing rod 4 is sequentially inserted into mounting holes of the end pressing plate 3 and the single-cell serial group 1 and fixed through bolts, so that upper parts are connected to form the battery pile. The pipeline interface 5 is communicated with the through hole on the end pressing plate 3, the through hole of the single battery series group 1 and the through hole of the end pressing plate 7.
The monolithic battery series group 1 in this embodiment is formed by connecting a plurality of monolithic batteries in series, wherein each monolithic battery is formed by a conductive plate 101, a hollow liquid flow frame plate 102, an electrode 103, an ion exchange membrane 105, an electrode 106, a liquid flow frame plate 107 and a conductive plate 108, and a sealing ring 104 is assembled and pressed on the ion exchange membrane 105.
The integrally cast limiting strip 1021 is arranged along the front edges of the flow frame plates 102 and 107, and the limiting strip 1021 slightly protrudes out of the surfaces of the flow frame plates 102 and 107 and is used for limiting the sealing ring 104 positioned at the joint part of the two flow frame plates 102 and 107, so that the periphery of the sealing ring 104 is just positioned in the range of the limiting strip 1021.
The electrodes 103 and 106 are connected to the sealing tape 10 having a U-shaped cross section, respectively. The peripheries of the electrode 103 and the electrode 106 are respectively inserted into the U-shaped grooves of the sealing strips 10, so that the peripheries of the electrode 103 and the electrode 106 are embedded in a circle of sealing strips 10.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A vanadium redox flow battery pile is composed of a single-chip battery series group (1), pile electrodes (2), an end pressing plate (3), a fixed rod (4) and a pipeline interface (5), wherein the single-chip battery series group (1) is formed by connecting a plurality of single-chip batteries in series, each single-chip battery is formed by conductive plates (101, 108), liquid flow frame plates (102, 107) with hollow structures, electrodes (103, 106) and an ion exchange membrane (105), a sealing ring (104) is assembled on the ion exchange membrane (105) in a pressing way, and the vanadium redox flow battery pile is characterized in that,
the liquid flow frame plate structure is characterized in that a limiting strip (1021) is arranged along the edge of the front face of the liquid flow frame plate (102, 107), and the limiting strip (1021) is used for limiting a sealing ring (104) positioned at the joint part of the two liquid flow frame plates (102, 107);
the electrodes (103, 106) are sleeved in the sealing strips (10) with the U-shaped sections, and the sealing strips (10) seal the peripheries of the electrodes (103, 106);
parallel sealing lines (1022) are arranged on the back surfaces of the liquid flow frame plates (102, 107), and after the electrodes (103, 106) and the liquid flow frame plates (102, 107) are assembled, the parallel sealing lines (1022) are in pressing contact with the sealing strip (10) to seal the electrodes (103, 106) and the liquid flow frame plates (102, 107).
2. The vanadium redox flow battery cell stack of claim 1, wherein the limiting bars (1021) are cast integrally with the flow frame plate (102).
3. The vanadium redox flow battery cell stack of claim 1, wherein the parallel seal lines (1022) are cast integrally with the flow frame plate (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921239145.1U CN210489738U (en) | 2019-08-02 | 2019-08-02 | Vanadium redox flow battery pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921239145.1U CN210489738U (en) | 2019-08-02 | 2019-08-02 | Vanadium redox flow battery pile |
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| Publication Number | Publication Date |
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| CN210489738U true CN210489738U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921239145.1U Active CN210489738U (en) | 2019-08-02 | 2019-08-02 | Vanadium redox flow battery pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246977A1 (en) | 2022-06-23 | 2023-12-28 | Schaeffler Technologies AG & Co. KG | Redox flow battery and method for producing a redox flow battery |
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2019
- 2019-08-02 CN CN201921239145.1U patent/CN210489738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246977A1 (en) | 2022-06-23 | 2023-12-28 | Schaeffler Technologies AG & Co. KG | Redox flow battery and method for producing a redox flow battery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210705 Address after: 124000 1-82-452, Panjin Petroleum equipment manufacturing base, Xinglongtai District, Panjin City, Liaoning Province Patentee after: Griparoff energy storage technology (Panjin) Co.,Ltd. Address before: 124100 Dujia village, Taiping Town, Panshan County, Panjin City, Liaoning Province Patentee before: Liaoning greepaluofu new energy Co.,Ltd. |
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| TR01 | Transfer of patent right |