CN202758991U - Zinc oxide separation device for zinc air fuel battery - Google Patents
Zinc oxide separation device for zinc air fuel battery Download PDFInfo
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- CN202758991U CN202758991U CN 201220375636 CN201220375636U CN202758991U CN 202758991 U CN202758991 U CN 202758991U CN 201220375636 CN201220375636 CN 201220375636 CN 201220375636 U CN201220375636 U CN 201220375636U CN 202758991 U CN202758991 U CN 202758991U
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Abstract
The utility model belongs to the electrochemistry field and in particular relates to a zinc oxide separation device for a zinc air fuel battery and a separation method of the zinc oxide separation device. The zinc oxide separation device comprises a filter tank and a slurry lack tank, wherein filter materials are arranged in the filter tank, the filter tank is divided into a raw liquid cavity and a filter back cavity by the filter materials, and the raw liquid cavity is provided with an inlet and an outlet respectively. The inlet is connected to an output end of a first electrolyte driving pump through a connection pipeline, an input end of the first electrolyte driving pump is communicated with overflow ports at the tops of all batteries in a battery pack through overflow pipes, the outlet is communicated with the slurry lack tank through a connection pipeline, an electromagnetic valve is arranged on the connection pipeline between the outlet and the slurry lack tank, an output port is arranged on the filter back cavity, the output port is connected with an input end of a second electrolyte driving pump through a connection pipeline, an output end of the second electrolyte driving pump is communicated with injection ports at the bottoms of all batteries in the battery pack. The zinc oxide separation device can effectively separate zinc oxide in electrolyte of the liquid circulation type zinc air fuel battery, prevents zinc oxide from wrapping zinc electrodes and improves utilization rate of raw zinc materials.
Description
Technical field
The utility model belongs to electrochemical field, specifically a kind of zinc oxide separation device of circulate electrolyte formula zinc/air fuel cell.
Background technology
Zinc-air cell is successful first from Maiche in 1879 and has developed a century, and this technology is still in the middle of sustainable development at present.The zinc-air cell characteristics such as to have a capacity large because of it, and specific energy is high, and combination property is stable, uses safety, and material is easy to get and is cheap, and is environmentally friendly, and paid close attention to widely, and constantly seek the application market of zinc-air cell.
Environmental pollution, energy crisis are very problems of concerns of people always, and automobile is major power consumer, also are one of rich anies influential family of manufacturing environment pollution.Therefore, be national governments and research worker's problems of concern for the electrokinetic cell research that drives automobile always.
Zinc-air cell is because of its characteristic that has, so that it is favored in the selection of electric vehicle power sources very early.But zinc-air cell is not promoted so far widely in the application of electric automobiles yet.Main cause is that existing zinc-air cell negative pole structure and substitute mode can't satisfy user's requirement.
Zinc-air cell can be divided into mechanical block-plug in type and liquid circulated two kinds according to the difference of charging modes.The zinc-air cell of mechanical block-plug in type uses the porous zine plate as the negative material of electrode, adopt special additive technique quantitative, typing once compressing, the content height that has guaranteed the high porosity of porous zine plate and active zinc is consistent, simultaneously special additive makes that the concentration polarization of self is effectively controlled in the porous zine plate course of reaction, has solved battery cell inside and has produced the problem of self discharge because of concentration polarization.The porous zine plate can be realized by the form that mechanical plug is changed the energy supplement of battery cell.But, need more to renew electrode after battery discharge is complete, be unfavorable for commercial operation.
Liquid circulated zinc-air cell is to make the electricity slurry after electrolyte and the zinc powder mixing, then to squeeze in the battery cavities with pump, and the electricity slurry circulates discharge in battery, realized that the fuel type of zinc-air cell turns round.Its advantage is that the discharge source capacity is large, output voltage steadily, high-energy-density, active goods and materials can recycle, consume low, price is honest and clean, pollution-free, retention is good.Than the mechanical block-plug in type zinc-air cell, liquid circulated zinc-air cell is simple and fast more in the use, more is conducive to commercial operation.But, in existing liquid circulated zinc/air fuel cell, still exist some problems.The injection type zinc air cell of developing such as Beijing company, the product zinc oxide that the rich zinc material of the colloidal state of its use generates in discharge process is not separated with reactant zinc, along with the zinc oxide that carries out of exoelectrical reaction wraps up zinc, hindered the carrying out of reaction, the internal resistance of battery is raise, reduce the utilance of raw material, affected the performance of battery.
The utility model content
The utility model purpose is to provide a kind of zinc oxide separation device of zinc/air fuel cell.
For achieving the above object, the utility model adopts technical scheme to be:
A kind of zinc oxide separation device of zinc/air fuel cell comprises lautertuns and weary stock tank, wherein is provided with filtering material in the lautertuns, and described filtering material is separated into former sap cavity and filter back cavity with lautertuns; Have entrance, outlet on the described former sap cavity, entrance is connected to the first electrolyte by connecting tube and drives delivery side of pump, and the input of the first electrolyte driving pump is communicated with the top overfall of each cell in the battery pack by discharger; Described outlet is communicated with weary stock tank by connecting tube, and the connecting tube between outlet and weary stock tank is provided with electromagnetically operated valve; Have delivery outlet on the described filter back cavity, delivery outlet is connected to the input of the second electrolyte driving pump by connecting tube, and the second electrolyte drives delivery side of pump and is communicated with the bottom inlet of each cell in the battery pack by pipeline.
Described entrance, outlet lay respectively at the both sides of lautertuns axial cross section, are symmetrical arranged.
Described delivery outlet and entrance are positioned at the same side.
Described zinc/air fuel cell is comprised of at least one battery cell, battery cell is comprised of two air motor, barrier film, mesh cathode afflux groove, zinc granule, afflux lead-in wire and battery housing, two air motor are oppositely arranged by the battery housing and link to each other, opposite face is respectively equipped with barrier film, establish the mesh cathode afflux groove that is filled with zinc granule in two barrier films, the mesh cathode afflux groove is linked to each other with other air motor by afflux lead-in wire.
The advantage that the utility model has: the utility model device can effectively with the zinc oxide separation in the liquid circulated zinc/air fuel cell electrolyte out stop the parcel of zinc oxide to zinc electrode, has improved the utilance of raw material zinc.And so that the discharge of liquid circulated zinc/air fuel cell is more stable.
Description of drawings
The zinc oxide separation device schematic diagram of the liquid circulated zinc/air fuel cell that Fig. 1 provides for the utility model embodiment.Wherein, 1. battery cell, 2. air motor, 3. barrier film, 4. mesh cathode afflux groove, 5. zinc granule, 6. afflux lead-in wire, 7. battery housing, 8. discharger, 9. pipeline, 10. lautertuns, 11. former sap cavities, 12. the filter back cavity, 13. entrances, 14. outlets, 15. the electrolyte driving pump, 16. electromagnetically operated valves, 17. weary stock tanks, 18. delivery outlet, 19. electrolyte driving pumps, 20. filtering materials.
Embodiment
As described in Figure 1, the zinc oxide separation device of zinc/air fuel cell comprises lautertuns 10 and weary stock tank 17, wherein is provided with filtering material 20 in the lautertuns 10, and described filtering material 20 is separated into former sap cavity 11 and filter back cavity 12 with lautertuns 10; Have entrance 13, outlet 14 on the described former sap cavity 11, entrance 13 is connected to the output of the first electrolyte driving pump 15 by connecting tube, and the input of the first electrolyte driving pump 15 is communicated with the top overfall of each cell in the battery pack by discharger 8; Described outlet 14 is communicated with weary stock tank 17 by connecting tube, and the connecting tube between outlet 14 and weary stock tank 17 is provided with electromagnetically operated valve 16; Have delivery outlet 18 on the described filter back cavity 12, delivery outlet 18 is connected to the input of the second electrolyte driving pump 19 by connecting tube, and the output of the second electrolyte driving pump 19 is communicated with the bottom inlet of each cell in the battery pack by pipeline 9.
Described entrance 13, outlet 14 lay respectively at the both sides of lautertuns 10 axial cross sections, are symmetrical arranged.Described delivery outlet 18 is positioned at the same side with entrance 13.
Described zinc/air fuel cell is comprised of at least one battery cell 1, battery cell 1 is comprised of two air motor 2, barrier film 3, mesh cathode afflux groove 4, zinc granule 5, afflux lead-in wire 6 and battery housing 7, two air motor 2 are oppositely arranged by battery housing 7 and link to each other, opposite face is respectively equipped with barrier film 3, establish the mesh cathode afflux groove 4 that is filled with zinc granule 5 in two barrier films 3, mesh cathode afflux groove 4 is linked to each other with other air motor 2 by afflux lead-in wire 6.
In battery cell 1, electrolyte is injected by the bottom of cell, overflows from the top of cell, enters overflow pipe 8, because the proportion of zinc granule is larger, does not have zinc granule in the electrolyte that overflows, and is only carrying the zinc oxide fine particles that produces in the exoelectrical reaction secretly during separation.
A plurality of battery cell 1 has been consisted of battery pack by tandem.The pipeline 9 that injects electrolyte has been connected to the bottom of each cell of battery pack, and same, overflow pipe 8 also is connected to the top overfall that does not have a cell in the battery pack.
Each battery cell 1 is in exoelectrical reaction, and the zinc oxide of Surface Creation mud shape that can be within discharge is rolled in the surface of zinc granule, and time one length will form passivation layer, reduces the speed of electrochemical reaction.Under the promotion of electrolyte driving pump 19, electrolyte in the filter back cavity 12 is drawn out of, squeeze into electrolyte flow in pipes 9 from the delivery outlet of the logical driving pump 19 of electrolyte behind the intensified pressure, the just bottom of each cell 1 injection from battery pack of high pressure electrolyte, electrolyte has overcome the resistance of intensive zinc granule, overflows from the top overfall of cell 1.What be necessary to illustrate in this process is: zinc granule is suitable for reading from cell, and along with the consumption of zinc granule adds gradually, so the zinc granule above in the cell 1 is short because of the reaction time, the larger slit of particle is large, and following zinc granule is long because of the reaction time, consumes manyly, particle is little, and the slit is also little.The electrolyte that overflows has only carried zinc oxide ultra_fine powders, and does not contain the large zinc granule of proportion large volume, will realize that with the electrolyte that flows zinc oxide separates with zinc granule so first.When the white electrolyte that is carrying zinc oxide flows out from overfall, siphoned away by flood pump 15 through overflow pipe, be input to again in the former sap cavity 11 of lautertuns 10.Electrolyte sees through filtering material 20 in lautertuns 10.Can't see through filtering material 20 owing to generate product zinc oxide, so zinc oxide is left on former sap cavity 11.What also will further specify is: when electrolyte driving pump 19 sucked electrolyte from filter back cavity 12 again, the pressure decreased of the filter back cavity 12 of electrolyte filtering groove 10 had been strengthened the filtering function of filtering material 20.
Served as the zinc oxide of strainer filtering to a certain amount of, when having affected further strainability, done following arrangement in the utility model: electromagnetically operated valve 16 is opened, and electrolyte driving pump introspection work increases the pressure of filter back cavity, liquid stream flushing-back filtering net is picked out the zinc oxide of plug in the filter screen seam.The flood pump normal operation just is discharged into high concentration oxidation zinc in the weary stock tank 17 through electromagnetically operated valve like this.So far the utility model has been realized again separating of zinc oxide ultra_fine powders and electrolyte.
Claims (4)
1. the zinc oxide separation device of a zinc/air fuel cell, it is characterized in that: comprise lautertuns (10) and weary stock tank (17), wherein be provided with filtering material (20) in the lautertuns (10), described filtering material (20) is separated into former sap cavity (11) and filter back cavity (12) with lautertuns (10); Have entrance (13), outlet (14) on the described former sap cavity (11), entrance (13) is connected to the output of the first electrolyte driving pump (15) by connecting tube, and the input of the first electrolyte driving pump (15) is communicated with the top overfall of each cell in the battery pack by discharger (8); Described outlet (14) is communicated with weary stock tank (17) by connecting tube, and the connecting tube between outlet (14) and weary stock tank (17) is provided with electromagnetically operated valve (16); Have delivery outlet (18) on the described filter back cavity (12), delivery outlet (18) is connected to the input of the second electrolyte driving pump (19) by connecting tube, and the output of the second electrolyte driving pump (19) is communicated with the bottom inlet of each cell in the battery pack by pipeline (9).
2. by the zinc oxide separation device of zinc/air fuel cell claimed in claim 1, it is characterized in that: described entrance (13), outlet (14) lay respectively at the both sides of lautertuns (10) axial cross section, are symmetrical arranged.
3. by the zinc oxide separation device of zinc/air fuel cell claimed in claim 2, it is characterized in that: described delivery outlet (18) is positioned at the same side with entrance (13).
4. press the zinc oxide separation device of zinc/air fuel cell claimed in claim 1, it is characterized in that: described zinc/air fuel cell is comprised of at least one battery cell (1), battery cell (1) is by two air motor (2), barrier film (3), mesh cathode afflux groove (4), zinc granule (5), afflux lead-in wire (6) and battery housing (7) form, two air motor (2) are oppositely arranged by battery housing (7) and link to each other, opposite face is respectively equipped with barrier film (3), establish the mesh cathode afflux groove (4) that is filled with zinc granule (5) in two barrier films (3), mesh cathode afflux groove (4) is linked to each other with other air motor (2) by afflux lead-in wire (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375636 CN202758991U (en) | 2012-07-31 | 2012-07-31 | Zinc oxide separation device for zinc air fuel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375636 CN202758991U (en) | 2012-07-31 | 2012-07-31 | Zinc oxide separation device for zinc air fuel battery |
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| Publication Number | Publication Date |
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| CN202758991U true CN202758991U (en) | 2013-02-27 |
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| CN 201220375636 Expired - Fee Related CN202758991U (en) | 2012-07-31 | 2012-07-31 | Zinc oxide separation device for zinc air fuel battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103579716A (en) * | 2012-07-31 | 2014-02-12 | 沈阳鑫科能源技术有限公司 | Zinc oxide separation device and zinc oxide separation method for zinc-air fuel cell |
| CN107171007A (en) * | 2017-06-27 | 2017-09-15 | 清华大学 | Metal air fuel cell system and its application |
-
2012
- 2012-07-31 CN CN 201220375636 patent/CN202758991U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103579716A (en) * | 2012-07-31 | 2014-02-12 | 沈阳鑫科能源技术有限公司 | Zinc oxide separation device and zinc oxide separation method for zinc-air fuel cell |
| CN107171007A (en) * | 2017-06-27 | 2017-09-15 | 清华大学 | Metal air fuel cell system and its application |
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| 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: 20130227 Termination date: 20150731 |
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| EXPY | Termination of patent right or utility model |