CN202523799U - Redox flow battery border with flow guiding structure and electric pile - Google Patents
Redox flow battery border with flow guiding structure and electric pile Download PDFInfo
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- CN202523799U CN202523799U CN201220126976XU CN201220126976U CN202523799U CN 202523799 U CN202523799 U CN 202523799U CN 201220126976X U CN201220126976X U CN 201220126976XU CN 201220126976 U CN201220126976 U CN 201220126976U CN 202523799 U CN202523799 U CN 202523799U
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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
The utility model discloses a redox flow battery border with a flow guiding structure and an electric pile. The redox flow battery border with the flow guiding structure comprises a border body (1), a border inlet (2), a border outlet (3), an inlet shunting slot (4) and an outlet shunting slot (5), wherein the border inlet (2) and the inlet shunting slot (4) are arranged on the upper part of the border body (1), the border outlet (3) and the outlet shunting slot (5) are arranged on the lower part of the border body (1), and the middle part of the border body (1) is provided with an active region (6) which is connected with the border inlet (2) and the border outlet (3) through the inlet shunting slot (4) and the outlet shunting slot (5) respectively; the active region (6) is internally provided with a flow guiding field (7); and the periphery of the border body (1) is provided with sealing wires (8). According to the utility model, the problem of structural deformation inside the battery is solved, meanwhile, an electrolyte shunting effect is achieved, so that electrolyte is distributed uniformly, the probability of generation of zinc treelike crystals on the surfaces of electrodes is reduced, and thus, the battery is improved in performance and prolonged in service life. In addition, the advantages of simplicity for installation and low fault rate are achieved.
Description
Technical field
The utility model relates to a kind of flow battery frame and pile with flow-guiding structure, belongs to zinc bromine flow battery field.
Background technology
Along with the continuous deterioration of global environment and people attention to environmental problem; The eco-friendly clean energy resource of development of new is extremely urgent; Redox flow batteries (Redox flow battery) is a kind of energy-storage system of rising in recent years, and it has common batteries and fuel cell performance concurrently, has working life and storage life long; Advantage such as fast charging and discharging, depth of discharge performance are good; Airtight circulating system has been avoided contacting with the external world simultaneously, has avoided the pollution to environment, and electrode material needn't use valuable metallic catalyst etc.Therefore, realize the scale high-efficiency energy-storage, accelerate economic development that it is significant to develop redox flow batteries.
Zinc bromine flow battery can solve the shortcoming of above-mentioned battery; But zinc bromine flow battery also exists some technical problems; The aqueous solution like bromine and bromine salt has stronger corrosivity to battery material; In the zinc deposition process, on electrode, form easily dendrite, and dendritic growth can penetrate barrier film and causes internal short-circuit of battery and lost efficacy.In conventional art, for reducing corrosion, use the main material of conductive plastics usually as electrode, because the conductive plastic resistance rate is higher, the method for therefore taking to reduce thickness of electrode and electrode distance reduces the internal resistance of cell.But often because the plate material rigidity is not enough, cause electrode structure to cave in, stopping up electrolyte can't decline to a great extent through making battery performance.The inhomogeneous distribution of hed electrolyte solution simultaneously and, stop up electrolyte in the ramp of negative terminal surface zinc dendrite, even penetrate barrier film and cause internal short-circuit of battery and complete failure.
Mei Den Sha Ltd. opens among the flat 10-64505 the spy and discloses a kind of zinc bromine flow battery membrane configuration, through on battery diaphragm, increasing support node, plays the effect of reinforcing the electrode inner structure.Therefore its disclosed exemplary septum thickness is 0.4mm～1mm, and self there is swelling in barrier film in electrolyte in addition, though this design can be played the effect of rock-steady structure, the Stability Analysis of Structures during very difficult assurance works long hours.And, in the flow battery long-pending, can't play the effect of water conservancy diversion than large active surface.
Tradition zinc bromine flow battery increases filter in order to prevent battery generation deformation between bipolar plates and frame, but owing to filter in use can be subjected to displacement along with electrolyte flow, makes the inside battery structural change, and does not almost have guide functions; Filter is installed in addition the failure rate of pile in assembling process improved, filter is being installed after the easy dislocation of network capacity, and is being difficult for inspection, probably can cause pile seal failure or decreased performance.
The utility model content
The purpose of the utility model is; A kind of flow battery frame and pile with flow-guiding structure is provided; It can solve the problem of battery inner structure distortion, play the electrolyte guide functions simultaneously; Make the electrolyte distributed uniform, reduce the generating probability of electrode surface zinc dendrite, thereby improve the performance and the life-span of battery.Also have in addition the advantage that failure rate is low is installed simply.
The technical scheme of the utility model: a kind of flow battery frame with flow-guiding structure; Comprise framework, frame inlet, frame outlet, inlet splitter box and outlet splitter box; Frame inlet and inlet splitter box are located at the top of framework; Frame outlet and outlet splitter box are located at the bottom of framework, and the middle part of framework is provided with the active region, and outlet is connected with frame with the frame inlet with the outlet splitter box through the inlet splitter box respectively in the active region; Be provided with the water conservancy diversion field in the active region; Be provided with potted line around the framework.
In the flow battery frame of aforesaid this band flow-guiding structure, the water conservancy diversion field is made up of ridge and runner, and water conservancy diversion field structure form is divided into parallelly connected flow field, series connection flow field and blocking-up type flow field.
In the flow battery frame of aforesaid this band flow-guiding structure, said runner be shaped as " Z " shape, " C " shape or " U " shape.
In the flow battery frame of aforesaid this band flow-guiding structure, the thickness of framework is 0.5mm～5mm.
In the flow battery frame of aforesaid this band flow-guiding structure, the thickness of framework is 2mm.
In the flow battery frame of aforesaid this band flow-guiding structure, the height of potted line is 0.01mm～0.5mm.
In the flow battery frame of aforesaid this band flow-guiding structure, the height of potted line is 0.2mm.
A kind of flow battery pile that adopts aforementioned frame comprises the pressing plate, the integrated electrode assembly that are arranged in order, is no less than one integrated film assembly, integrated electrode assembly, pressing plate, and they through bolt together; The integrated electrode assembly is composed of a fixed connection by the frame and the bipolar plates of band flow-guiding structure, and the integrated film assembly is composed of a fixed connection by the frame and the barrier film of band flow-guiding structure.
In the aforesaid this flow battery pile, the frame and the bipolar plates of band flow-guiding structure are fixed together through laser welding, sweat soldering, bonding or mechanical crimping.
In the aforesaid this flow battery pile, the frame and the barrier film of band flow-guiding structure are fixed together through laser welding, sweat soldering, bonding or mechanical crimping.
Compared with prior art, the utility model prevents that effectively the inside battery structure from deforming owing to adopt the frame of band flow-guiding structure, has played the effect of water conservancy diversion simultaneously, makes the electrolyte can uniform distribution.Also reduced the generating probability of electrode surface zinc dendrite, the performance of battery has been improved more than 10%.
Owing to adopt the frame of band flow-guiding structure to make the finished product failure rate of pile low, be suitable for automated production.
The structure of inlet splitter box be can simplify on the structure, die cost and processing cost reduced.
See from the pile performance, be illustrated in figure 5 as the charging and discharging curve of traditional structure flow battery, reaction temperature is a normal temperature; Charging and discharging currents is 30A; We can find out that battery discharge time is shorter from Fig. 5, almost the discharge off platform; And the discharge curve appearance is rough falls suddenly, and the efficient of calculating this circulation is lower than 60%.Fig. 6 is the flow battery charging and discharging curve of the utility model structure, and test condition is identical with Fig. 5, can observe the battery discharge curve smoothing, and the counting cell cycle efficieny is more than 70%.
Description of drawings
Fig. 1 is the structural representation of the flow battery frame of band flow-guiding structure;
Fig. 2 is the structural representation of the pile of the flow battery frame of employing band flow-guiding structure;
The cross-sectional view of the integrated electrode assemblie of Fig. 3;
The cross-sectional view of the integrated membrane module of Fig. 4;
Fig. 5 is traditional pile charge-discharge performance curve;
Fig. 6 is the utility model pile charge-discharge performance curve;
Fig. 7 is series connection structure of flow field sketch map;
Fig. 8 is parallelly connected structure of flow field sketch map;
Fig. 9 is a blocking-up type structure of flow field sketch map;
Figure 10 is the structural representation of " Z " shape runner;
Figure 11 is the structural representation of " C " shape runner;
Figure 12 is the structural representation of " U " shape runner.
Being labeled as in the accompanying drawing: 1-framework, 2-frame inlet, the outlet of 3-frame, the 4-splitter box that enters the mouth; 5-exports splitter box, 6-active region, 7-water conservancy diversion field, 8-potted line; The 9-pressing plate, 10-integrated electrode assembly, 11-barrier film, 12-integrated film assembly; The frame of 13-band flow-guiding structure, 14-bipolar plates, 15-ridge, 16-runner.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
The embodiment 1 of the utility model: as shown in Figure 1; A kind of flow battery frame with flow-guiding structure; Comprise framework 1, frame inlet 2, frame outlet 3, inlet splitter box 4 and outlet splitter box 5, frame inlet 2 and inlet splitter box 4 are located at the top of framework 1, and frame outlet 3 and outlet splitter box 5 are located at the bottom of framework 1; The middle part of framework 1 is provided with active region 6, and active region 6 is connected with frame outlet 3 with frame inlet 2 with outlet splitter box 5 through inlet splitter box 4 respectively; Be provided with water conservancy diversion field 7 in the active region 6; Be provided with potted line 8 around the framework 1.The thickness of framework 1 is 0.5mm.The height of potted line 8 is 0.01mm.
As shown in Figure 7, water conservancy diversion field 7 is made up of ridge 15 and runner 16; Water conservancy diversion field 7 is the series connection flow field.Be shaped as " Z " shape like the said runner 16 of Figure 10.
Like Fig. 2～shown in Figure 4, the flow battery pile of frame is stated in a kind of employing, comprises the pressing plate 9, the integrated electrode assembly 10 that are arranged in order, is no less than one integrated film assembly 12, integrated electrode assembly 10, pressing plate 9, and they through bolt together; Integrated electrode assembly 10 is composed of a fixed connection with bipolar plates 14 by the frame 13 of band flow-guiding structure, and integrated film assembly 12 is composed of a fixed connection with barrier film 11 by the frame 13 of band flow-guiding structure.
The frame 13 of band flow-guiding structure and bipolar plates 14 are through sweat soldering together; The frame 13 of band flow-guiding structure bonds together with barrier film 11.
The embodiment 2 of the utility model: as shown in Figure 1; A kind of flow battery frame with flow-guiding structure; Comprise framework 1, frame inlet 2, frame outlet 3, inlet splitter box 4 and outlet splitter box 5, frame inlet 2 and inlet splitter box 4 are located at the top of framework 1, and frame outlet 3 and outlet splitter box 5 are located at the bottom of framework 1; The middle part of framework 1 is provided with active region 6, and active region 6 is connected with frame outlet 3 with frame inlet 2 with outlet splitter box 5 through inlet splitter box 4 respectively; Be provided with water conservancy diversion field 7 in the active region 6; Be provided with potted line 8 around the framework 1.The thickness of framework 1 is 2mm.The height of potted line 8 is 0.2mm.
As shown in Figure 8, water conservancy diversion field 7 is made up of ridge 15 and runner 16; Water conservancy diversion field 7 is parallelly connected flow field.
Shown in figure 11, runner 16 be shaped as " C " shape.
Like Fig. 2～shown in Figure 4, the flow battery pile of frame is stated in a kind of employing, comprises the pressing plate 9, the integrated electrode assembly 10 that are arranged in order, is no less than one integrated film assembly 12, integrated electrode assembly 10, pressing plate 9, and they through bolt together; Integrated electrode assembly 10 is composed of a fixed connection with bipolar plates 14 by the frame 13 of band flow-guiding structure, and integrated film assembly 12 is composed of a fixed connection with barrier film 11 by the frame 13 of band flow-guiding structure.
The frame 13 of band flow-guiding structure passes through laser welding together with bipolar plates 14; The frame 13 of band flow-guiding structure passes through laser welding together with barrier film 11.
The embodiment 3 of the utility model: as shown in Figure 1; A kind of flow battery frame with flow-guiding structure; Comprise framework 1, frame inlet 2, frame outlet 3, inlet splitter box 4 and outlet splitter box 5, frame inlet 2 and inlet splitter box 4 are located at the top of framework 1, and frame outlet 3 and outlet splitter box 5 are located at the bottom of framework 1; The middle part of framework 1 is provided with active region 6, and active region 6 is connected with frame outlet 3 with frame inlet 2 with outlet splitter box 5 through inlet splitter box 4 respectively; Be provided with water conservancy diversion field 7 in the active region 6; Be provided with potted line 8 around the framework 1.The thickness of framework 1 is 4mm.The height of potted line 8 is 0.4mm.
As shown in Figure 9, water conservancy diversion field 7 is made up of ridge 15 and runner 16; Water conservancy diversion field 7 is the blocking-up type flow field.
Shown in figure 12, runner 16 be shaped as " U " shape.
Like Fig. 2～shown in Figure 4, the flow battery pile of frame is stated in a kind of employing, comprises the pressing plate 9, the integrated electrode assembly 10 that are arranged in order, is no less than one integrated film assembly 12, integrated electrode assembly 10, pressing plate 9, and they through bolt together; Integrated electrode assembly 10 is composed of a fixed connection with bipolar plates 14 by the frame 13 of band flow-guiding structure, and integrated film assembly 12 is composed of a fixed connection with barrier film 11 by the frame 13 of band flow-guiding structure.
The frame 13 of band flow-guiding structure bonds together with bipolar plates 14; The frame 13 of band flow-guiding structure leads to sweat solderings together with barrier film 11.
The embodiment 4 of the utility model: as shown in Figure 1; A kind of flow battery frame with flow-guiding structure; Comprise framework 1, frame inlet 2, frame outlet 3, inlet splitter box 4 and outlet splitter box 5, frame inlet 2 and inlet splitter box 4 are located at the top of framework 1, and frame outlet 3 and outlet splitter box 5 are located at the bottom of framework 1; The middle part of framework 1 is provided with active region 6, and active region 6 is connected with frame outlet 3 with frame inlet 2 with outlet splitter box 5 through inlet splitter box 4 respectively; Be provided with water conservancy diversion field 7 in the active region 6; Be provided with potted line 8 around the framework 1.The thickness of framework 1 is 5mm.The height of potted line 8 is 0.5mm.
As shown in Figure 7, water conservancy diversion field 7 is made up of ridge 15 and runner 16; Water conservancy diversion field 7 is the series connection flow field.
Shown in figure 11, runner 16 be shaped as " C " shape.
Like Fig. 2～shown in Figure 4, the flow battery pile of frame is stated in a kind of employing, comprises the pressing plate 9, the integrated electrode assembly 10 that are arranged in order, is no less than one integrated film assembly 12, integrated electrode assembly 10, pressing plate 9, and they through bolt together; Integrated electrode assembly 10 is composed of a fixed connection with bipolar plates 14 by the frame 13 of band flow-guiding structure, and integrated film assembly 12 is composed of a fixed connection with barrier film 11 by the frame 13 of band flow-guiding structure.
The frame 13 of band flow-guiding structure is fixed together through mechanical crimping with bipolar plates 14; The frame 13 of band flow-guiding structure is fixed together through mechanical crimping with barrier film 11.
Claims (10)
1. flow battery frame with flow-guiding structure; Comprise framework (1), frame inlet (2), frame outlet (3), inlet splitter box (4) and outlet splitter box (5); It is characterized in that: frame inlet (2) and inlet splitter box (4) are located at the top of framework (1); Frame outlet (3) and outlet splitter box (5) are located at the bottom of framework (1); The middle part of framework (1) is provided with active region (6), and active region (6) are connected with frame outlet (3) with frame inlet (2) with outlet splitter box (5) through inlet splitter box (4) respectively; Be provided with water conservancy diversion field (7) in the active region (6); Be provided with potted line (8) around the framework (1).
2. a kind of flow battery frame with flow-guiding structure according to claim 1 is characterized in that: water conservancy diversion field (7) are made up of ridge (15) and runner (16); The version of water conservancy diversion field (7) is divided into parallelly connected flow field, series connection flow field and blocking-up type flow field.
3. a kind of flow battery frame with flow-guiding structure according to claim 2 is characterized in that: said runner (16) be shaped as " Z " shape, " C " shape or " U " shape.
4. according to claim 1 or 2 or 3 described a kind of flow battery frames with flow-guiding structure, it is characterized in that: the thickness of framework (1) is 0.5mm～5mm.
5. a kind of flow battery frame with flow-guiding structure according to claim 4, it is characterized in that: the thickness of framework (1) is 2mm.
6. a kind of flow battery frame with flow-guiding structure according to claim 4, it is characterized in that: the height of potted line (8) is 0.01mm～0.5mm.
7. a kind of flow battery frame with flow-guiding structure according to claim 6, it is characterized in that: the height of potted line (8) is 0.2mm.
8. an employing is according to the flow battery pile of any said frame in the claim 1～7; It is characterized in that: comprise the pressing plate (9), the integrated electrode assembly (10) that are arranged in order, be no less than one integrated film assembly (12), integrated electrode assembly (10), pressing plate (9), they through bolt together; Integrated electrode assembly (10) is composed of a fixed connection with bipolar plates (14) by the frame (13) of band flow-guiding structure, and integrated film assembly (12) is composed of a fixed connection with barrier film (11) by the frame (13) of band flow-guiding structure.
9. a kind of flow battery pile according to claim 8 is characterized in that: the frame (13) of band flow-guiding structure is fixed together through laser welding, sweat soldering, bonding or mechanical crimping with bipolar plates (14).
10. it is characterized in that according to Claim 8 or 9 described a kind of flow battery piles: the frame (13) of band flow-guiding structure is fixed together through laser welding, sweat soldering, bonding or mechanical crimping with barrier film (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220126976XU CN202523799U (en) | 2012-03-29 | 2012-03-29 | Redox flow battery border with flow guiding structure and electric pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220126976XU CN202523799U (en) | 2012-03-29 | 2012-03-29 | Redox flow battery border with flow guiding structure and electric pile |
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| CN202523799U true CN202523799U (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220126976XU Expired - Fee Related CN202523799U (en) | 2012-03-29 | 2012-03-29 | Redox flow battery border with flow guiding structure and electric pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623719A (en) * | 2012-03-29 | 2012-08-01 | 北京百能汇通科技股份有限公司 | Flow cell frame with diversion structure, galvanic pile and processing method of galvanic pile |
| CN112928298A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院大连化学物理研究所 | Zinc-bromine single flow battery structure |
-
2012
- 2012-03-29 CN CN201220126976XU patent/CN202523799U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623719A (en) * | 2012-03-29 | 2012-08-01 | 北京百能汇通科技股份有限公司 | Flow cell frame with diversion structure, galvanic pile and processing method of galvanic pile |
| CN112928298A (en) * | 2019-12-06 | 2021-06-08 | 中国科学院大连化学物理研究所 | Zinc-bromine single flow battery structure |
| CN112928298B (en) * | 2019-12-06 | 2022-05-17 | 中国科学院大连化学物理研究所 | Zinc-bromine single flow battery structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20150329 |
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| EXPY | Termination of patent right or utility model |