CN102931426A - Fan-shaped flow cell, fan-shaped flow cell stack and circular flow cell stack - Google Patents
Fan-shaped flow cell, fan-shaped flow cell stack and circular flow cell stack Download PDFInfo
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- CN102931426A CN102931426A CN2012104280464A CN201210428046A CN102931426A CN 102931426 A CN102931426 A CN 102931426A CN 2012104280464 A CN2012104280464 A CN 2012104280464A CN 201210428046 A CN201210428046 A CN 201210428046A CN 102931426 A CN102931426 A CN 102931426A
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- 239000003792 electrolyte Substances 0.000 claims abstract description 246
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims description 136
- 238000007789 sealing Methods 0.000 claims description 38
- 230000008676 import Effects 0.000 claims description 33
- 239000012530 fluid Substances 0.000 claims description 20
- 230000004308 accommodation Effects 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000010287 polarization Effects 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 239000003014 ion exchange membrane Substances 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- 230000037427 ion transport Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a fan-shaped flow cell, a fan-shaped flow cell stack and a circular flow cell stack. The fan-shaped flow cell comprises a fan-shaped ion exchange membrane and a fan-shaped half cell. The half cell comprises a anode half cell and a cathode half cell, the anode half cell and the cathode half cell are oppositely arranged on two sides of the ion exchange membrane, the anode half cell and the cathode half cell are respectively provided with fan-shaped electrolyte inlets and fan-shaped electrolyte outlets, the electrolyte inlets are arranged close to the long arc edges of the half cells, the electrolyte outlets are arranged close to the short arc edges of half cells, and arc length of the electrolyte inlets is larger than that of the electrolyte outlets. The arc length of the electrolyte inlets of the fan-shaped flow cell is larger than that of the electrolyte outlets of the fan-shaped flow cell, therefore entering linear speed of electrolyte is less than flowing-out linear speed of the electrolyte. During charge and discharge, reaction ion concentration is decreased, and reaction zone is decreased along the flow direction of the electrolyte. Required ions are reduced, concentration polarization is reduced, and charge-discharge efficiency is improved.
Description
Technical field
The present invention relates to the flow battery field, in particular to a kind of fan-shaped flow battery, fan-shaped liquid stream battery stack and circular liquid stream battery stack.
Background technology
Existing liquid stream battery stack, comprise that liquid flow frame 1 ', bipolar plates 2 ', porous electrode 3 ', amberplex 4 ' stack according to order shown in Figure 1 and be assembled, the composition of battery pile is repeated to stack together by the structure shown in Fig. 1, can be found out by Fig. 1 and Fig. 2, its monocell sheet is rectangle, the electrolyte import is at rectangle one end, and outlet is at the other end of rectangle.No matter how to carry out the inside battery flow Field Design, electrolyte all will be gradually flows to the other end from an end of cell piece and causes electrolyte inhomogeneous at the cell piece internal reaction.And in this flow process, when discharging and recharging, greater than port of export reactive ion concentration, and along with the flowing and the consumption of reactive ion of electrolyte, reactive ion concentration diminishes gradually in its entrance point electrolyte reactive ion concentration; Therefore, the electrolyte reactive ion concentration of entrance point and the port of export has different, and the linear velocity of entrance point and port of export electrolyte process porous electrode is identical (because rectangular battery sheet design, it is imported and exported sectional area and equates and import and export volume flow rate to equate all the time), thus aggravated further that the electrolyte reaction is inhomogeneous, the reduction of concentration polarization and battery efficiency.
Summary of the invention
The present invention aims to provide a kind of fan-shaped flow battery, fan-shaped liquid stream battery stack and circular liquid stream battery stack, has optimized the uniformity of the reactive ion concentration of electrolyte in course of reaction.
To achieve these goals, according to an aspect of the present invention, provide a kind of fan-shaped flow battery, fan-shaped flow battery comprises: fan-shaped amberplex; Fan-shaped half-cell, comprise anodal half-cell and negative pole half-cell, anodal half-cell and negative pole half-cell relatively are arranged on the both sides of amberplex, anodal half-cell and negative pole half-cell have respectively fan-shaped electrolyte import and fan-shaped electrolyte outlet, the electrolyte import near and be parallel to the half-cell long arc edge setting with it, electrolyte outlet is close and be parallel to the half-cell short arc edge setting with it, and the arc length of electrolyte import is greater than the arc length of electrolyte outlet.
Further, be provided with electrolyte through hole corresponding with electrolyte import and electrolyte outlet position and that be complementary on the above-mentioned amberplex.
Further, above-mentioned anodal half-cell and negative plate battery comprise respectively: liquid flow frame, be arranged on a side of amberplex, and have fan-shaped spatial accommodation; Porous electrode is embedded in the spatial accommodation of liquid flow frame; Bipolar plates is arranged on liquid flow frame away from a side of amberplex, and electrolyte import and electrolyte outlet are arranged on the bipolar plates, and liquid flow frame has electrolyte introducing port and electrolyte export mouth corresponding with electrolyte import and electrolyte outlet position and that be communicated with.
Further, each above-mentioned liquid flow frame also has flow-guiding channel, and flow-guiding channel is arranged between the electrolyte introducing port of liquid flow frame and the porous electrode and between electrolyte export mouth and the porous electrode.
Further, above-mentioned flow-guiding channel be by the close bipolar plates side of liquid flow frame to guiding gutter near the side-facing depressions of amberplex.
Further, the electrolyte introducing port of the liquid flow frame of above-mentioned anodal half-cell comprises that anode electrolyte introducing port, electrolyte export mouth comprise that anode electrolyte export mouth, flow-guiding channel are the anode electrolyte flow-guiding channel, the liquid flow frame of anodal half-cell also comprises the first anodal sealing strip, and anode electrolyte introducing port, anode electrolyte export mouth and anode electrolyte flow-guiding channel are sealed in the zone that the first anodal sealing strip surrounds; The electrolyte introducing port of the liquid flow frame of above-mentioned negative pole half-cell comprises that negative pole electrolyte introducing port, electrolyte export mouth comprise that negative pole electrolyte export mouth, flow-guiding channel are negative pole electrolyte flow-guiding channel, the liquid flow frame of negative pole half-cell also comprises the first negative pole sealing strip, and negative pole electrolyte introducing port, negative pole electrolyte export mouth and negative pole electrolyte flow-guiding channel are sealed in the zone that the first negative pole sealing strip surrounds.
Further, the liquid flow frame of above-mentioned anodal half-cell also comprises the first negative pole electrolyte flow-guiding mouth and the second negative pole sealing strip, and the first negative pole electrolyte flow-guiding mouth is sealed in the zone that the second negative pole sealing strip surrounds; The liquid flow frame of above-mentioned negative pole half-cell also comprises the first anode electrolyte flow-guiding mouth and the second anodal sealing strip, and the first anode electrolyte flow-guiding mouth is sealed in the zone that the second anodal sealing strip surrounds.
Further, two curved edges of the spatial accommodation of above-mentioned each liquid flow frame all have stage portion, the side of surface of stage portion and the close amberplex of liquid flow frame at grade, the inward flange butt of porous electrode and stage portion, and the degree of depth of stage portion is identical with the degree of depth of guiding gutter.
Further, the central angle of above-mentioned fan-shaped flow battery is acute angle.
According to a further aspect in the invention, a kind of fan-shaped liquid stream battery stack also is provided, this fan-shaped liquid stream battery stack comprises one or more above-mentioned fan-shaped flow batteries, and the amberplex with the fan-shaped flow battery that is arranged in order, the porous electrode of the anodal half-cell of fan-shaped flow battery and liquid flow frame, the bipolar plates of fan-shaped flow battery, the porous electrode of the negative pole half-cell of fan-shaped flow battery and liquid flow frame are the assembled unit repeated arrangement, porous electrode is embedded in the liquid flow frame corresponding with it, the liquid flow frame of anodal half-cell also comprises the second negative pole electrolyte flow-guiding mouth and the 3rd negative pole sealing strip, and the second negative pole electrolyte flow-guiding mouth is sealed in the zone that the 3rd negative pole sealing strip surrounds; The liquid flow frame of negative pole half-cell also comprises the second anode electrolyte flow-guiding mouth and the 3rd anodal sealing strip, and the first anode electrolyte flow-guiding mouth is sealed in the zone that the 3rd anodal sealing strip surrounds.
According to another aspect of the invention, also provide a kind of circular liquid stream battery stack, this circle liquid stream battery stack comprises a plurality of above-mentioned fan-shaped liquid stream battery stacks.
Further, above-mentioned circular liquid stream battery stack also comprises: anodal input duct, be arranged on the position corresponding with the electrolyte import, below of the first end of circular liquid stream battery stack, and provide anode electrolyte to fan-shaped liquid stream battery stack; The negative pole input duct, be arranged on the first end of circular liquid stream battery stack and be positioned at anodal input duct under or directly over, provide negative pole electrolyte to fan-shaped liquid stream battery stack; Anodal fluid pipeline is arranged on the position corresponding with electrolyte outlet, top of the second end of circular liquid stream battery stack, and the anode electrolyte of finishing reaction is derived fan-shaped liquid stream battery stack; Negative pole fluid pipeline, be arranged on the second end of circular liquid stream battery stack and be positioned at anodal fluid pipeline directly over or under, the negative pole electrolyte of finishing reaction is derived fan-shaped liquid stream battery stack.
Further, above-mentioned anodal input duct, negative pole input duct, anodal fluid pipeline and negative pole fluid pipeline are the pipeline with the annular of the coaxial setting of circular liquid stream battery stack.
Use technical scheme of the present invention, anode electrolyte and negative pole electrolyte all the electrolyte import by separately enter in the fan-shaped flow battery with certain volume flow rate and discharge and recharge reaction, after finishing, reaction flows out fan-shaped flow battery by separately electrolyte outlet with identical volume flow rate, the arc length of the electrolyte import of this fan-shaped flow battery is greater than the arc length of electrolyte outlet, therefore, the linear velocity of the electrolyte flow of electrolyte import department is less than the linear velocity of the electrolyte flow at electrolyte outlet place.When utilizing above-mentioned fan-shaped flow battery to discharge and recharge, after electrolyte enters fan-shaped flow battery with less linear flow speed, although the carrying out along with reaction, reactive ion concentration can diminish gradually, but simultaneously because the conversion zone of fan-shaped flow battery also is flow direction along electrolyte reduces gradually, the amount of the ion of its required participation reaction also reduces gradually so, and larger in the linear velocity of the electrolyte flow at electrolyte outlet place, the convection current that has improved reactive ion transports in time postreaction of efficient desired ion, therefore can guarantee the uniformity of the ionic reaction of whole fan-shaped flow battery, reduce the concentration polarization of electrolyte, improved the efficiency for charge-discharge of battery.
Description of drawings
The Figure of description that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the perspective view according to the flow battery of prior art;
Fig. 2 shows the vertical view of flow battery shown in Figure 1, and wherein the sensing of arrow shows the flow direction of electrolyte;
Fig. 3 shows the perspective view according to the fan-shaped flow battery of a kind of preferred embodiment of the present invention, and solid arrow shows the flow direction of anode electrolyte among the figure, and dotted arrow shows the flow direction of negative pole electrolyte;
Fig. 4 shows the structural representation of the bipolar plates of the fan-shaped flow battery shown in Fig. 3;
Fig. 5 shows the structural representation of liquid flow frame of the anodal half-cell of the fan-shaped flow battery shown in Fig. 3;
Fig. 6 shows the structural representation of liquid flow frame of the negative pole half-cell of the fan-shaped flow battery shown in Fig. 3;
Fig. 7 shows the structural representation according to the assembled unit of the fan-shaped liquid stream battery stack of a preferred embodiment of the present invention; And
Fig. 8 shows the perspective view according to the circular liquid stream battery stack of a preferred embodiment of the present invention, and solid arrow shows the flow direction of anode electrolyte among the figure, and dotted arrow shows the flow direction of negative pole electrolyte.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As shown in Figure 3 and Figure 4, in a kind of typical execution mode of the present invention, a kind of fan-shaped flow battery is provided, this fan-shaped flow battery comprises fan-shaped amberplex 1, fan-shaped half-cell, this half-cell comprises anodal half-cell and negative pole half-cell, anodal half-cell and negative pole half-cell relatively are arranged on the both sides of amberplex 1, anodal half-cell and negative pole half-cell have respectively fan-shaped electrolyte import 41 and fan-shaped electrolyte outlet 42, electrolyte import 41 near and be parallel to the half-cell long arc edge setting with it, electrolyte outlet 42 near and be parallel to the half-cell short arc edge setting with it, and the arc length of electrolyte import 41 is greater than the arc length of electrolyte outlet 42.
Anode electrolyte and negative pole electrolyte all the electrolyte import 41 by separately enter in the fan-shaped flow battery with certain volume flow rate and discharge and recharge reaction, after finishing, reaction flows out fan-shaped flow battery by separately electrolyte outlet 42 with identical volume flow rate, the arc length of the electrolyte import 41 of this fan-shaped flow battery is greater than the arc length of electrolyte outlet 42, therefore, the linear velocity of the electrolyte flow at electrolyte import 41 places is less than the linear velocity of the electrolyte flow at electrolyte outlet 42 places.When utilizing above-mentioned fan-shaped flow battery to discharge and recharge, after electrolyte enters fan-shaped flow battery with less linear flow speed, although the carrying out along with reaction, reactive ion concentration can diminish gradually, but simultaneously because the conversion zone of fan-shaped flow battery also is flow direction along electrolyte reduces gradually, the amount of the ion of its required participation reaction also reduces gradually so, and larger in the linear velocity of the electrolyte flow at electrolyte outlet 42 places, the convection current that has improved reactive ion transports in time postreaction of efficient desired ion, therefore can guarantee the uniformity of the ionic reaction of whole fan-shaped flow battery, reduce the concentration polarization of electrolyte, improved the efficiency for charge-discharge of battery.As shown in Figure 3, waltz through the structure that amberplex 1 is also simplified battery as far as possible for the ease of electrolyte, be provided with electrolyte through hole corresponding with electrolyte import 41 and electrolyte outlet 42 positions and that be complementary on the amberplex 1 of preferred above-mentioned fan-shaped flow battery.
Extremely shown in Figure 6 such as Fig. 3, in a kind of preferred embodiment of the present invention, the anodal half-cell of above-mentioned fan-shaped flow battery and negative plate battery comprise respectively liquid flow frame 3, porous electrode 2 and bipolar plates 4, and liquid flow frame 3 is arranged on a side of amberplex 1, has fan-shaped spatial accommodation; Porous electrode 2 is embedded in the spatial accommodation of liquid flow frame 3; Bipolar plates 4 is arranged on liquid flow frame 3 away from a side of amberplex 1, electrolyte import 41 and electrolyte outlet 42 are arranged on the bipolar plates 4, and liquid flow frame 3 has electrolyte introducing port and electrolyte export mouth corresponding with electrolyte import 41 and electrolyte outlet 42 positions and that be communicated with.
Compact conformation with fan-shaped flow battery of said structure, enter in the porous electrode 2 by the electrolyte introducing port on the liquid flow frame 3 again after electrolyte is entered by electrolyte import 41 and discharge and recharge reaction, flow out fan-shaped flow battery through electrolyte export mouth and electrolyte outlet successively again after electrolyte is finished, the flow of electrolyte is easy to control in this fan-shaped flow battery.
As shown in Figure 5 and Figure 6, when between porous electrode 3 and electrolyte introducing port and the electrolyte export mouth during space, preferred each liquid flow frame 3 also has flow-guiding channel, and flow-guiding channel is arranged between the electrolyte introducing port of liquid flow frame 3 and the porous electrode 2 and between electrolyte export mouth and the porous electrode 2.
In order to simplify the manufacturing process of liquid flow frame 3, preferred flow-guiding channel be by close bipolar plates 4 sides of liquid flow frame 3 to the guiding gutter of the side-facing depressions of close amberplex 1.
As shown in Figure 5 and Figure 6, in the another kind of preferred embodiment of the present invention, the electrolyte introducing port of the liquid flow frame 3 of the anodal half-cell of above-mentioned fan-shaped flow battery comprises that anode electrolyte introducing port 31, electrolyte export mouth comprise that anode electrolyte export mouth 32, flow-guiding channel are anode electrolyte flow-guiding channel 33, the liquid flow frame 3 of anodal half-cell also comprises the first anodal sealing strip, and anode electrolyte introducing port 31, anode electrolyte export mouth 32 and anode electrolyte flow-guiding channel 33 are sealed in the zone that the first anodal sealing strip surrounds; The electrolyte introducing port of the liquid flow frame 3 of negative pole half-cell comprises that negative pole electrolyte introducing port 34, electrolyte export mouth comprise that negative pole electrolyte export mouth 35, flow-guiding channel are negative pole electrolyte flow-guiding channel 36, the liquid flow frame 3 of negative pole half-cell also comprises the first negative pole sealing strip, and negative pole electrolyte introducing port 34, negative pole electrolyte export mouth 35 and negative pole electrolyte flow-guiding channel 36 are sealed in the zone that the first negative pole sealing strip surrounds.Adopt the first position that anodal sealing strip seals, negative pole electrolyte is flowed through to adopt the first negative pole sealing strip to seal the position that anode electrolyte on the liquid flow frame 3 is flowed through, avoided leaking of anode electrolyte to cause battery efficiency to reduce.
As shown in Figure 5 and Figure 6, in the another kind of preferred embodiment of the present invention, the liquid flow frame 3 of the anodal half-cell of above-mentioned fan-shaped flow battery also comprises the first negative pole electrolyte flow-guiding mouth 371 and the second negative pole sealing strip, and the first negative pole electrolyte flow-guiding mouth 371 is sealed in the zone that the second negative pole sealing strip surrounds; The liquid flow frame 3 of negative pole half-cell also comprises the first anode electrolyte flow-guiding mouth 381 and the second anodal sealing strip, and the first anode electrolyte flow-guiding mouth 381 is sealed in the zone that the second anodal sealing strip surrounds.
In order to further specify the structure of the fan-shaped flow battery in above-described embodiment, below take by the same end feed flow of fan-shaped flow battery as the structure of example in conjunction with the above-mentioned fan-shaped flow battery of the mobile explanation of electrolyte, when anode electrolyte during by the anode electrolyte inlet feed liquor on the bipolar plates 4 of anodal half-cell, anode electrolyte can pass the anode electrolyte introducing port 31 of the liquid flow frame 3 of anodal half-cell successively, the porous electrode 2 that anode electrolyte flow-guiding channel 33 enters anodal half-cell reacts, and then successively by anode electrolyte flow-guiding channel 33, anode electrolyte export mouth 32, the anode electrolyte through hole of amberplex 1 enters the first anode electrolyte flow-guiding mouth 381 of the liquid flow frame 3 of negative pole half-cell, the negative pole electrolyte outlet of the bipolar plates 4 of negative pole half-cell flows out; When negative pole electrolyte during by the negative pole electrolyte inlet feed liquor of the bipolar plates 4 of anodal half-cell, negative pole electrolyte can pass the first negative pole electrolyte flow-guiding mouth 371 of the liquid flow frame 3 of anodal half-cell successively, the negative pole electrolysis fluid through-hole of amberplex 1 enters the negative pole electrolyte introducing port 34 of the liquid flow frame 3 of negative pole half-cell, then the porous electrode 2 that enters the negative pole half-cell of the negative pole electrolyte flow-guiding channel 36 on same liquid flow frame 3 reacts, the negative pole electrolyte flow-guiding channel 36 on the liquid flow frame 3 of negative pole half-cell successively after reaction is finished, negative pole electrolyte export mouth 35, the negative pole electrolyte outlet of the bipolar plates 4 of negative pole half-cell flows out.
The present invention is in order further to optimize the uniformity that electrolyte enters porous electrode 2, two curved edges of the spatial accommodation of preferred each liquid flow frame 3 all have stage portion 39, the side of surface of stage portion 39 and the close amberplex 1 of liquid flow frame 3 at grade, the inward flange butt of porous electrode 2 and stage portion 39, and the degree of depth of stage portion 39 is identical with the degree of depth of guiding gutter.After electrolyte is imported by the electrolyte introducing port, through the peptizaiton of stage portion 39, flow in the porous electrode 2 with a kind of more uniform state.
Considering how to arrange and could easily and accurately control electrolyte, the central angle of preferred fan-shaped flow battery is acute angle.
As shown in Figure 7, in the another kind of typical execution mode of the present invention, a kind of fan-shaped liquid stream battery stack is provided, this fan-shaped liquid stream battery stack comprises one or more above-mentioned fan-shaped flow batteries, and the amberplex 1 with the fan-shaped flow battery that is arranged in order, the porous electrode 2 of the anodal half-cell of fan-shaped flow battery and liquid flow frame 3, the bipolar plates 4 of fan-shaped flow battery, the porous electrode 2 of the negative pole half-cell of fan-shaped flow battery and liquid flow frame 3 are the assembled unit repeated arrangement, porous electrode 2 is embedded in the liquid flow frame corresponding with it 3, the liquid flow frame 3 of anodal half-cell also comprises the second negative pole electrolyte flow-guiding mouth 372 and the 3rd negative pole sealing strip, and the second negative pole electrolyte flow-guiding mouth 372 is sealed in the zone that the 3rd negative pole sealing strip surrounds; The liquid flow frame 3 of negative pole half-cell also comprises the second anode electrolyte flow-guiding mouth 382 and the 3rd anodal sealing strip, and the first anode electrolyte flow-guiding mouth 382 is sealed in the zone that the 3rd anodal sealing strip surrounds.
When fan-shaped liquid stream battery stack has a plurality of fan-shaped flow battery, pass through continuously each fan-shaped flow battery for the ease of electrolyte, so be provided with the second negative pole electrolyte flow-guiding mouth 372 and the second anode electrolyte flow-guiding mouth 382 at liquid flow frame 3, on the basis that the reaction uniformity of each fan-shaped flow battery of this law is improved, the reaction uniformity that comprises its fan-shaped liquid stream battery stack also is improved, thereby reduced the concentration polarization of electrolyte, improved the efficiency for charge-discharge of battery pile.
As shown in Figure 8, in the another kind of typical execution mode of the present invention, provide a kind of circular liquid stream battery stack, this circle liquid stream battery stack comprises a plurality of above-mentioned fan-shaped liquid stream battery stacks.Above-mentioned fan-shaped liquid stream battery stack is assembled the conglobate liquid stream battery stack of shape according to mode shown in Figure 8, increased the integrated level of battery pile and the efficient of battery pile.
In another preferred embodiment of the present invention, above-mentioned circular liquid stream battery stack also comprises anodal input duct 5, negative pole input duct 6, anodal fluid pipeline 7 and negative pole fluid pipeline 8, the position that the first end below that anodal input duct 5 is arranged on circular liquid stream battery stack and electrolyte import 41 are corresponding provides anode electrolyte to fan-shaped liquid stream battery stack; Negative pole input duct 6 be arranged on the first end of circular liquid stream battery stack and be positioned at anodal input duct 5 under or directly over, provide negative pole electrolyte to fan-shaped liquid stream battery stack; Anodal fluid pipeline 7 is arranged on the position corresponding to top and electrolyte outlet 42 of the second end of circular liquid stream battery stack, and the anode electrolyte of finishing reaction is derived fan-shaped liquid stream battery stack; Negative pole fluid pipeline 8 be arranged on the second end of circular liquid stream battery stack and be positioned at anodal fluid pipeline 7 directly over or under, the negative pole electrolyte of finishing reaction is derived fan-shaped liquid stream battery stack.
The outside that anodal input duct 5 and negative pole input duct 6 are arranged near the circular flow battery of electrolyte import is conducive to provide electrolyte to liquid stream battery stack, for the ease of electrolyte is delivered in the battery, can from anodal input duct 5 and negative pole input duct 6 arrange with corresponding electrolyte import to the opening of coupling or utilize drainage pipe with the electrolyte drainage to the electrolyte import; Equally, the position that the top that anodal fluid pipeline 7 and negative pole fluid pipeline 8 is arranged on the second end and electrolyte outlet 42 are corresponding is convenient to electrolyte is drained fan-shaped liquid stream battery stack in time.
In order to make electrolyte enter each fan-shaped battery pile with unified state, preferred anodal input duct 5, negative pole input duct 6, anodal fluid pipeline 7 and negative pole fluid pipeline 8 are the pipeline with the annular of the coaxial setting of circular liquid stream battery stack.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a fan-shaped flow battery is characterized in that, described fan-shaped flow battery comprises:
Fan-shaped amberplex (1);
Fan-shaped half-cell, comprise anodal half-cell and negative pole half-cell, described anodal half-cell and described negative pole half-cell relatively are arranged on the both sides of described amberplex (1), described anodal half-cell and described negative pole half-cell have respectively fan-shaped electrolyte import (41) and fan-shaped electrolyte outlet (42), described electrolyte import (41) near and be parallel to the described half-cell long arc edge setting with it, described electrolyte outlet (42) is close and be parallel to the described half-cell short arc edge setting with it, and the arc length of described electrolyte import (41) is greater than the arc length of described electrolyte outlet (42).
2. fan-shaped flow battery according to claim 1 is characterized in that, is provided with electrolyte through hole corresponding with described electrolyte import (41) and electrolyte outlet (42) position and that be complementary on the described amberplex (1).
3. fan-shaped flow battery according to claim 1 is characterized in that, described anodal half-cell and described negative plate battery comprise respectively:
Liquid flow frame (3) is arranged on a side of described amberplex (1), has fan-shaped spatial accommodation;
Porous electrode (2) is embedded in the spatial accommodation of described liquid flow frame (3);
Bipolar plates (4), be arranged on described liquid flow frame (3) away from a side of described amberplex (1), described electrolyte import (41) and described electrolyte outlet (42) are arranged on the described bipolar plates (4), and described liquid flow frame (3) has electrolyte introducing port and electrolyte export mouth corresponding with described electrolyte import (41) and described electrolyte outlet (42) position and that be communicated with.
4. fan-shaped flow battery according to claim 3, it is characterized in that, each described liquid flow frame (3) also has flow-guiding channel, and described flow-guiding channel is arranged between the electrolyte introducing port of described liquid flow frame (3) and the described porous electrode (2) and between electrolyte export mouth and the described porous electrode (2).
5. fan-shaped flow battery according to claim 4 is characterized in that, described flow-guiding channel be by close described bipolar plates (4) side of described liquid flow frame (3) to guiding gutter near the side-facing depressions of described amberplex (1).
6. fan-shaped flow battery according to claim 5 is characterized in that,
The electrolyte introducing port of the liquid flow frame of described anodal half-cell (3) comprises that anode electrolyte introducing port (31), electrolyte export mouth comprise that anode electrolyte export mouth (32), described flow-guiding channel are anode electrolyte flow-guiding channel (33), the liquid flow frame of described anodal half-cell (3) also comprises the first anodal sealing strip, and described anode electrolyte introducing port (31), described anode electrolyte export mouth (32) and described anode electrolyte flow-guiding channel (33) are sealed in the zone that the described first anodal sealing strip surrounds;
The electrolyte introducing port of the liquid flow frame of described negative pole half-cell (3) comprises that negative pole electrolyte introducing port (34), electrolyte export mouth comprise that negative pole electrolyte export mouth (35), described flow-guiding channel are negative pole electrolyte flow-guiding channel (36), the liquid flow frame of described negative pole half-cell (3) also comprises the first negative pole sealing strip, and described negative pole electrolyte introducing port (34), described negative pole electrolyte export mouth (35) and described negative pole electrolyte flow-guiding channel (36) are sealed in the zone that described the first negative pole sealing strip surrounds.
7. fan-shaped flow battery according to claim 6 is characterized in that,
The liquid flow frame of described anodal half-cell (3) also comprises the first negative pole electrolyte flow-guiding mouth (371) and the second negative pole sealing strip, and described the first negative pole electrolyte flow-guiding mouth (371) is sealed in the zone that described the second negative pole sealing strip surrounds;
The liquid flow frame of described negative pole half-cell (3) also comprises the first anode electrolyte flow-guiding mouth (381) and the second anodal sealing strip, and described the first anode electrolyte flow-guiding mouth (381) is sealed in the zone that the described second anodal sealing strip surrounds.
8. fan-shaped flow battery according to claim 5, it is characterized in that, two curved edges of the spatial accommodation of each described liquid flow frame (3) all have stage portion (39), the side of a surface of described stage portion (39) and the close described amberplex (1) of described liquid flow frame (3) at grade, the inward flange butt of described porous electrode (2) and described stage portion (39), and the degree of depth of described stage portion (39) is identical with the degree of depth of described guiding gutter.
9. according to claim 1 to 8 each described fan-shaped flow batteries, it is characterized in that, the central angle of described fan-shaped flow battery is acute angle.
10. fan-shaped liquid stream battery stack, it is characterized in that, described fan-shaped liquid stream battery stack comprises each described fan-shaped flow battery in one or more claims 1 to 8, and the amberplex (1) with the described fan-shaped flow battery that is arranged in order, the porous electrode of the anodal half-cell of described fan-shaped flow battery (2) and liquid flow frame (3), the bipolar plates of described fan-shaped flow battery (4), porous electrode (2) and the liquid flow frame (3) of the negative pole half-cell of described fan-shaped flow battery are the assembled unit repeated arrangement, described porous electrode (2) is embedded in the described liquid flow frame (3) corresponding with it
The liquid flow frame of described anodal half-cell (3) also comprises the second negative pole electrolyte flow-guiding mouth (372) and the 3rd negative pole sealing strip, and described the second negative pole electrolyte flow-guiding mouth (372) is sealed in the zone that described the 3rd negative pole sealing strip surrounds;
The liquid flow frame of described negative pole half-cell (3) also comprises the second anode electrolyte flow-guiding mouth (382) and the 3rd anodal sealing strip, and described the first anode electrolyte flow-guiding mouth (382) is sealed in the zone that the described the 3rd anodal sealing strip surrounds.
11. a circular liquid stream battery stack is characterized in that, described circular liquid stream battery stack comprises a plurality of fan-shaped liquid stream battery stacks as claimed in claim 10.
12. circular liquid stream battery stack according to claim 11, it is characterized in that, described circular liquid stream battery stack also comprises: anodal input duct (5), be arranged on the position corresponding with described electrolyte import (41), below of the first end of described circular liquid stream battery stack, provide anode electrolyte to described fan-shaped liquid stream battery stack;
Negative pole input duct (6), be arranged on the first end of described circular liquid stream battery stack and be positioned at described anodal input duct (5) under or directly over, provide negative pole electrolyte to described fan-shaped liquid stream battery stack;
Anodal fluid pipeline (7) is arranged on the position corresponding with described electrolyte outlet (42), top of the second end of described circular liquid stream battery stack, and the anode electrolyte of finishing reaction is derived described fan-shaped liquid stream battery stack;
Negative pole fluid pipeline (8), be arranged on the second end of described circular liquid stream battery stack and be positioned at described anodal fluid pipeline (7) directly over or under, the negative pole electrolyte of finishing reaction is derived described fan-shaped liquid stream battery stack.
13. circular liquid stream battery stack according to claim 12, it is characterized in that, described anodal input duct (5), negative pole input duct (6), anodal fluid pipeline (7) and negative pole fluid pipeline (8) are the pipeline with the annular of the coaxial setting of described circular liquid stream battery stack.
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