CN208923281U - A kind of zinc bromine single flow battery - Google Patents
A kind of zinc bromine single flow battery Download PDFInfo
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- CN208923281U CN208923281U CN201821971376.7U CN201821971376U CN208923281U CN 208923281 U CN208923281 U CN 208923281U CN 201821971376 U CN201821971376 U CN 201821971376U CN 208923281 U CN208923281 U CN 208923281U
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- electrode frame
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- cathode
- flow battery
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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 relates to flow battery energy storage technical fields, a kind of zinc bromine single flow battery, the cathode electrode frame is a plate, plate upper surface middle part is provided with a groove, a hollow out, through-hole for accommodating porous cathode are provided in the middle part of the groove floor, diaphragm is placed in groove, and lower surface edge and the groove floor edge of diaphragm are mutually amplexiformed；The anode electrode frame is a plate, plate upper surface middle part is provided with a groove, a hollow out, through-hole for accommodating porous anode are provided in the middle part of the groove floor, bipolar plates are placed in groove, and lower surface edge and the groove floor edge of bipolar plates are mutually amplexiformed；The diaphragm be porous septum, 200-1200 microns of film thickness.Diaphragm is placed in cathode electrode frame groove, is entirely sealed in inside pile, and electrolyte can be effectively prevent to cut facing external leakage by diaphragm, prevented that the security risk that each section causes battery short circuit is connected due to electrolyte.
Description
Technical field
The utility model relates to flow battery energy storage technical field, in particular to a kind of zinc bromine single flow battery field.
Background technique
Zinc bromine single flow battery is a kind of high efficiency, the flow battery energy storage technology of long life, energy with higher
Metric density, device is simply steerable, and positive active material is enclosed in inside pile, can not only reduce circulating pump and liquid storing barrel
It uses, reduces pile cost, can also effectively prevent the pollution of bromine.Which are mainly applied to peak load regulation network, wind energy and solar energy etc. can
The fields such as renewable source of energy generation.Existing zinc bromine single flow battery is to pass through between electrode frame and bipolar plates, electrode frame and diaphragm
Gasket seals, and has the disadvantages that the characteristic due to zinc bromine single flow battery diaphragm, runs in zinc-bromine flow battery
When, electrolyte can be by diaphragm laterally to pile external penetration, and electrolyte will lead to each batteries outside pile and be shorted, and exist
Security risk.In addition to this, the use of gasket will greatly improve the cost of zinc-bromine flow battery.
Utility model content
The utility model is in order to solve the above technical problems, provide a kind of zinc bromine single flow battery.Electrode frame material selection
Polyvinyl chloride, it is easy to process.It is equipped with groove on the cathode electrode frame of each section and anode electrode frame surface, places diaphragm respectively
And bipolar plates, since diaphragm and bipolar plates are all placed in groove, there is no need to use gasket to seal, and can also be effectively
Inhibition electrolyte by diaphragm to pile external penetration.
To achieve the above object, the utility model uses following technical scheme:
A kind of zinc bromine single flow battery, the monocell including 2 or more the stackings of sequence from bottom to up, monocell includes yin
Pole electrode frame, porous cathode, diaphragm, anode electrode frame, porous anode are equipped with bipolar plates between adjacent single cells,
The cathode electrode frame is a plate, and plate upper surface middle part is provided with a groove, is set in the middle part of groove floor
Be equipped with a hollow out, through-hole for accommodating porous cathode, diaphragm is placed in groove, the lower surface edge of diaphragm with it is recessed
It mutually amplexiforms groove bottom edge；
The anode electrode frame is a plate, and plate upper surface middle part is provided with a groove, is set in the middle part of groove floor
It is equipped with a hollow out, through-hole for accommodating porous anode, bipolar plates are placed in groove, the lower surface edge of bipolar plates
It is mutually amplexiformed with groove floor edge；
The diaphragm be porous septum, 200-1200 microns of film thickness.
It is exported in the electrode frame surface of cathode electrode frame groove side with catholyte is respectively arranged below with
Runner and catholyte inlet channel；In anode electrode frame far from the electrode frame surface of groove side and lower section point
It She You not anolyte outlet flow and anolyte inlet channel.
12-18 through-hole is respectively set in cathode and anode electrode frame edge, the bolt hole as fixed pile.
Be equipped with cover plate on electrolyte inlet runner and electrolyte outlet runner, when preventing diaphragm from compressing block runner and
It is broken when bipolar plates compress.
In battery assembly, cathode electrode frame successively replaces placement, cathode electrode frame and anode electrode with anode electrode frame
Side of the frame with electrolyte inlet and outlet flow is staggered relatively.
The depth of the cathode electrode frame upper groove, which is less than, assembles preceding membrane thicknesses；The depth of the anode electrode frame upper groove
Degree, which is less than, assembles preceding bipolar plate thickness；
After battery assembly, the depth of the cathode electrode frame upper groove is equal to membrane thicknesses；The anode electrode frame fovea superior
The depth of slot is equal in bipolar plate thickness.
The utility model by adopting the above technical scheme, compared with prior art, has the following technical effect that
Diaphragm is placed in cathode electrode frame groove, is entirely sealed in inside pile, can effectively prevent electrolyte by every
Film cuts facing external leakage, has prevented that the security risk that each section causes battery short circuit is connected due to electrolyte.Simultaneously as diaphragm
It is all sealed in inside pile with bipolar plates, no longer needs between electrode frame and diaphragm and electrode frame and bipolar plates using gasket
It is sealed, simplifies the component of pile, reduce the cost of pile.Gasket is omitted in battery structure, its thickness is thinned.
Battery polarization reduces, and the internal resistance of cell reduces, and significantly improves power density.
Detailed description of the invention
Fig. 1 electrode frame structure of the present invention, 1- cathode electrode frame, 2- anode electrode frame,
Fig. 2 battery assembling schematic diagram of the present invention, 1- cathode electrode frame, 2- anode electrode frame, 3- electrode, 4- bipolar plates, 5-
Film
Fig. 3 routine zinc bromine single flow battery assembling schematic diagram
1- cathode electrode frame, 2- anode electrode frame, 3- electrode, 4- bipolar plates, 5- film, 6- gasket
Specific embodiment
Embodiment
Zinc bromine single flow battery Seal Design structure provided by the utility model is as shown in Figure 1.Pile assembling schematic diagram is such as
Shown in Fig. 2.In the middle part of electrode frame, the through-hole of a hollow out is set, for placing porous electrode.In cathode electrode frame surface, it is equipped with
One groove, for placing diaphragm.In in cathode electrode frame groove surfaces, cathode electricity is respectively equipped in the two sides up and down of rectangular through-hole
Solve liquid outlet flow and catholyte inlet channel.In anode electrode frame surface, it is equipped with a groove, for placing bipolar plates.
In surface of the anode electrode frame far from groove, the two sides up and down of Yu Tongkong are respectively equipped with anolyte outlet flow and anode electricity
Solve liquid inlet channel.In assembly, porous electrode is placed in cathode electrode frame and anode electrode frame middle through-hole, to guarantee
Compression ratio, the thickness outline of porous electrode is higher than the thickness of cathode electrode frame and anode electrode frame, in cathode electrode frame groove
Diaphragm is placed, 900 microns of film thickness, cathode electrode frame depth of groove is 800 microns, bipolar in placing in anode electrode frame groove
Plate, bipolar plate thickness 1mm, anode electrode frame depth of groove 1mm contact diaphragm and bipolar plates with porous electrode；Cathode electrode
Frame and anode electrode frame are successively alternately placed, and the side of cathode electrode frame and anode electrode frame with runner is staggered relatively.Battery
300 circulations, cell voltage efficiency 89% are run after assembly at 40mA/cm2.
Comparative example
Conventional zinc bromine single flow battery structure, battery are formed by two section cells in series, monocell successively layer in order
Folded to form, anode collection plate, positive liquid flow frame, gasket, anode, film, cathode, gasket, cathode liquid flow frame, is born gasket
Pole collector plate runs 300 circulations, cell voltage efficiency 85% at 40mA/cm2 after battery assembly.
Since diaphragm and bipolar plates are all sealed in inside pile, between electrode frame and diaphragm and electrode frame and bipolar plates
It no longer needs to be sealed using gasket, gasket is omitted in battery structure, its thickness is thinned, and battery polarization reduces, battery
Internal resistance reduces, and cell voltage efficiency is improved significantly.
Claims (6)
1. a kind of zinc bromine single flow battery, the monocell including 2 or more the stackings of sequence from bottom to up, monocell includes cathode
Electrode frame, porous cathode, diaphragm, anode electrode frame, porous anode are equipped with bipolar plates between adjacent single cells, it is characterised in that:
The cathode electrode frame is a plate, and plate upper surface middle part is provided with a groove, is provided in the middle part of groove floor
One hollow out, through-hole for accommodating porous cathode, diaphragm are placed in groove, the lower surface edge of diaphragm and groove-bottom
It mutually amplexiforms face edge；
The anode electrode frame is a plate, and plate upper surface middle part is provided with a groove, is provided in the middle part of groove floor
One hollow out, through-hole for accommodating porous anode, bipolar plates are placed in groove, the lower surface edge of bipolar plates with it is recessed
It mutually amplexiforms groove bottom edge；
The diaphragm be porous septum, 200-1200 microns of film thickness.
2. according to zinc bromine single flow battery described in claim 1, it is characterised in that:
In cathode electrode frame groove side electrode frame surface and be respectively arranged below with catholyte outlet flow
With catholyte inlet channel；It is set respectively in anode electrode frame far from the electrode frame surface of groove side and lower section
There are anolyte outlet flow and anolyte inlet channel.
3. according to zinc bromine single flow battery described in claim 1, it is characterised in that: in cathode and anode electrode frame surrounding fate
Not She Zhi 12-18 through-hole, the bolt hole as fixed pile.
4. according to zinc bromine single flow battery described in claim 1, it is characterised in that: electrolyte inlet runner and electrolyte outlet stream
It is equipped with cover plate on road, is blocked when preventing diaphragm from compressing broken when runner and bipolar plates compression.
5. according to zinc bromine single flow battery described in claim 1, it is characterised in that: in battery assembly, cathode electrode frame and sun
Pole electrode frame is successively alternately placed, and the side of cathode electrode frame and anode electrode frame with electrolyte inlet and outlet flow is opposite
It places.
6. according to zinc bromine single flow battery described in claim 1, it is characterised in that: the depth of the cathode electrode frame upper groove is small
The membrane thicknesses before assembling；The depth of the anode electrode frame upper groove, which is less than, assembles preceding bipolar plate thickness；
After battery assembly, the depth of the cathode electrode frame upper groove is equal to membrane thicknesses；The anode electrode frame upper groove
Depth is equal in bipolar plate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821971376.7U CN208923281U (en) | 2018-11-28 | 2018-11-28 | A kind of zinc bromine single flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821971376.7U CN208923281U (en) | 2018-11-28 | 2018-11-28 | A kind of zinc bromine single flow battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208923281U true CN208923281U (en) | 2019-05-31 |
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ID=66712557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821971376.7U Active CN208923281U (en) | 2018-11-28 | 2018-11-28 | A kind of zinc bromine single flow battery |
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| Country | Link |
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| CN (1) | CN208923281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112993360A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院大连化学物理研究所 | Zinc-bromine single-flow galvanic pile and battery |
-
2018
- 2018-11-28 CN CN201821971376.7U patent/CN208923281U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112993360A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院大连化学物理研究所 | Zinc-bromine single-flow galvanic pile and battery |
| CN112993360B (en) * | 2019-12-13 | 2022-04-19 | 中国科学院大连化学物理研究所 | Zinc-bromine single-flow galvanic pile and battery |
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