CN214226959U - But laser welding's redox flow battery electrode frame structure and redox flow battery pile - Google Patents
But laser welding's redox flow battery electrode frame structure and redox flow battery pile Download PDFInfo
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- CN214226959U CN214226959U CN202022758731.6U CN202022758731U CN214226959U CN 214226959 U CN214226959 U CN 214226959U CN 202022758731 U CN202022758731 U CN 202022758731U CN 214226959 U CN214226959 U CN 214226959U
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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
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Abstract
The utility model discloses a laser-weldable flow battery electrode frame structure and a flow battery pile, which comprises the following 2 electrode frames, wherein one electrode frame is a flat electrode frame with a middle through hole for accommodating an electrode, an annular boss is arranged on the edge of a monocell on one side surface of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular boss; the other electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular groove is arranged on the peripheral edge of one side surface of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular groove; the shapes and the sizes of the 2 electrode frames are the same, and the annular bosses on the 2 electrode frames are correspondingly matched with the annular grooves. The invention aims to establish a new sealing form, and two adjacent electrode frames are subjected to laser welding, the form has high sealing reliability, and the cost of the battery can be greatly reduced.
Description
Technical Field
The utility model belongs to the flow battery field relates to a but laser welding's flow battery electrode frame structure.
Background
With the continuous development of the energy storage industry of the flow battery, the demand is continuously increased, and the existing battery structure can not meet the requirements of continuously reducing the battery cost and increasing the battery sealing reliability.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a weldable flow battery electrode frame structure;
a liquid flow battery electrode frame structure capable of being welded by laser comprises a flat electrode frame with a middle through hole for accommodating an electrode, wherein an annular boss is arranged on the peripheral edge of one side surface of the electrode frame, the middle through hole is positioned in the area surrounded by the annular boss, and an annular groove corresponding to the annular boss is arranged on the peripheral edge of the other side surface of the electrode frame at the position corresponding to the annular boss.
The electrode frame also comprises the following 2 electrode frames which are respectively:
an electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular boss is arranged on the edge of a monocell on the surface of one side of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular boss;
the other electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular groove is arranged on the peripheral edge of one side surface of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular groove;
the shapes and the sizes of the 2 electrode frames are the same, and the annular bosses on the 2 electrode frames are correspondingly matched with the annular grooves.
A flow battery pile is formed by stacking more than 2 sections of single batteries between 2 end plates in sequence, each single battery comprises 2 electrode frames for accommodating a positive electrode and a negative electrode, and comprises 2 electrode frames close to the 2 end plates and other electrode frames,
2 electrode frames close to the 2 end plates, wherein 1 electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular boss is arranged on the edge of a monocell on the surface of one side of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular boss; the other electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular groove is arranged on the peripheral edge of one side surface of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular groove;
the other electrode frames are flat electrode frames with middle through holes for accommodating electrodes, an annular boss is arranged on the peripheral edge of one side surface of each electrode frame, the middle through holes are surrounded by the annular bosses, and annular grooves corresponding to the annular bosses are arranged on the peripheral edges of the other side surface of each electrode frame at positions corresponding to the annular bosses;
in the process of assembling the electric pile by the monocells, the annular boss of one electrode frame in the adjacent electrode frames is arranged in the annular groove of the other electrode frame;
the electrode frame is made of transparent materials; in the assembling process, a dark water-based coating is coated on the top surface of the annular boss, namely the surface far away from the electrode frame, or the bottom surface of the annular groove, or an opaque water-based coating is coated on one or two side wall surfaces (inner side wall surface or outer side wall surface) of the annular boss, or the side wall surface far away from the middle through hole of the annular groove, or the side wall surface close to the middle through hole of the annular groove, and then the adjacent electrode frame can be subjected to laser welding through the annular boss and the annular groove.
The opaque water-based coating is one of black, brown or gray in color.
At present, the contact position of two battery electrode frames of the flow battery is subjected to surface sealing or linear sealing by a sealing gasket, the sealing gasket is laid manually, the reliability is not high, and the cost of the sealing gasket is high; the utility model discloses aim at establishing a new sealed form, carry out laser welding with two adjacent electrode frames, this kind of form sealing reliability is high, the cost that can also greatly reduced battery.
Drawings
FIG. 1 is a schematic diagram of the utility model with 45 degree slant on the front;
in the figure: 1 is the annular boss of electrode frame
Fig. 2 is the oblique 45 degrees sketch map of back face of the utility model:
in the figure: 2 is the annular groove of the electrode frame, and 3 is the middle through hole of the electrode frame.
Detailed Description
A flow battery pile is formed by sequentially stacking more than 8 sections of single batteries arranged between 2 end plates, wherein each single battery comprises 2 electrode frames for accommodating a positive electrode and a negative electrode, and comprises 2 electrode frames close to the 2 end plates and other electrode frames.
2 electrode frames close to the 2 end plates, wherein 1 electrode frame is a flat electrode frame with a middle through hole for accommodating an electrode, such as a structure 3 in fig. 2, an annular boss is arranged on the edge of a single cell on one side surface of the electrode frame, such as the structure 1 in fig. 1, and the middle through hole is positioned in an area surrounded by the annular boss; the other electrode frame is a flat plate-shaped electrode frame with a central through hole for accommodating an electrode, and a circular groove is arranged on the peripheral edge of one side surface of the electrode frame, as shown in structure 2 in fig. 2, and the central through hole is located in the area surrounded by the circular groove.
The other electrode frames are flat electrode frames with middle through holes for accommodating electrodes, an annular boss is arranged on the peripheral edge of one side surface of each electrode frame, the middle through holes are surrounded by the annular bosses, and annular grooves corresponding to the annular bosses are arranged on the peripheral edge of the other side surface of each electrode frame at positions corresponding to the annular bosses.
In the process of assembling the electric pile by the monocells, the annular boss of one electrode frame in the adjacent electrode frames is arranged in the annular groove of the other electrode frame.
The electrode frame is made of transparent materials; in the assembling process, the top surface (the surface far away from the electrode frame) of the annular boss is coated with a light-tight water-based coating, and the light-tight color is black.
The specific process comprises the following steps:
(1) when the transparent PE electrode frame is manufactured, an annular boss is processed on the front surface of the electrode frame, such as the structure 1 in figure 1, and an annular groove is processed on the back surface of the electrode frame; and the top surface of the annular boss is treated by applying a necessary non-oil coating (black water-based coating) in dark color during welding, wherein the dark color is black;
(2) when two battery electrode frames are assembled, the annular boss part of one battery electrode frame is aligned to the annular groove part of the other battery electrode frame, such as the structure 2 in fig. 2, and the two battery electrode frames are assembled and pressed tightly;
(3) placing the two electrode frames on a laser welding machine for welding treatment;
after welding, the two electrode frames can realize sealing without a sealing gasket.
FIG. 1 is a schematic diagram of the utility model with 45 degree slant on the front;
in the figure: 1 is an annular boss of an electrode frame;
FIG. 2 is a schematic diagram of the utility model with a back surface inclined by 45 degrees;
in the figure: and 2 is an annular groove of the electrode frame.
Claims (4)
1. A flow battery electrode frame structure capable of being welded by laser is characterized in that:
the electrode comprises a flat electrode frame with a middle through hole for accommodating an electrode, wherein an annular boss is arranged on the peripheral edge of one side surface of the electrode frame, the middle through hole is positioned in the area surrounded by the annular boss, and an annular groove corresponding to the annular boss is arranged on the peripheral edge of the other side surface of the electrode frame at the position corresponding to the annular boss.
2. A flow battery electrode frame structure capable of being welded by laser is characterized in that:
the electrode frame comprises the following 2 electrode frames which are respectively:
an electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular boss is arranged on the edge of a monocell on the surface of one side of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular boss;
the other electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular groove is arranged on the peripheral edge of one side surface of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular groove;
the shapes and the sizes of the 2 electrode frames are the same, and the annular bosses on the 2 electrode frames are correspondingly matched with the annular grooves.
3. A flow battery stack is characterized in that: form by stacking gradually more than 2 sections of arranging between 2 end plates in, every section monocell all includes 2 electrode frames that are used for the positive and negative pole of holding, including 2 electrode frames and other electrode frames that are close to 2 end plates, its characterized in that:
2 electrode frames close to the 2 end plates, wherein 1 electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular boss is arranged on the edge of a monocell on the surface of one side of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular boss; the other electrode frame is a flat-plate-shaped electrode frame with a middle through hole for accommodating an electrode, an annular groove is arranged on the peripheral edge of one side surface of the electrode frame, and the middle through hole is positioned in the area surrounded by the annular groove;
the other electrode frames are flat electrode frames with middle through holes for accommodating electrodes, an annular boss is arranged on the peripheral edge of one side surface of each electrode frame, the middle through holes are surrounded by the annular bosses, and annular grooves corresponding to the annular bosses are arranged on the peripheral edges of the other side surface of each electrode frame at positions corresponding to the annular bosses;
in the process of assembling the electric pile by the monocells, the annular boss of one electrode frame in the adjacent electrode frames is arranged in the annular groove of the other electrode frame;
the electrode frame is made of transparent materials; in the assembling process, the top surface of the annular boss or the bottom surface of the annular groove far away from the surface of the electrode frame is coated with a dark water-based coating, or one or two side wall surfaces of the annular boss on the inner side wall surface or the outer side wall surface, or the side wall surface of the annular groove far away from the middle through hole, or the side wall surface of the annular groove close to the middle through hole is coated with a dark water-based coating, and then the adjacent electrode frame can be subjected to laser welding through the annular boss and the annular groove.
4. The flow cell stack of claim 3, wherein:
the aqueous coating has a dark color of one of black, brown, or gray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022758731.6U CN214226959U (en) | 2020-11-25 | 2020-11-25 | But laser welding's redox flow battery electrode frame structure and redox flow battery pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022758731.6U CN214226959U (en) | 2020-11-25 | 2020-11-25 | But laser welding's redox flow battery electrode frame structure and redox flow battery pile |
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| Publication Number | Publication Date |
|---|---|
| CN214226959U true CN214226959U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022758731.6U Active CN214226959U (en) | 2020-11-25 | 2020-11-25 | But laser welding's redox flow battery electrode frame structure and redox flow battery pile |
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| Country | Link |
|---|---|
| CN (1) | CN214226959U (en) |
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2020
- 2020-11-25 CN CN202022758731.6U patent/CN214226959U/en active Active
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