CN203300744U - Sealing structure for bipolar plates and flow frame for flow battery - Google Patents
Sealing structure for bipolar plates and flow frame for flow battery Download PDFInfo
- Publication number
- CN203300744U CN203300744U CN2013202108721U CN201320210872U CN203300744U CN 203300744 U CN203300744 U CN 203300744U CN 2013202108721 U CN2013202108721 U CN 2013202108721U CN 201320210872 U CN201320210872 U CN 201320210872U CN 203300744 U CN203300744 U CN 203300744U
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- bipolar plates
- flow frame
- liquid flow
- sealing
- hermetically
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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 provides a sealing structure for bipolar plates and a flow frame for a flow battery. The sealing structure at least comprises the flow frame, a sealing line slot, a sealing line and bipolar plates, wherein the part of volume of the inner side of the flow frame is removed so that a platform area corresponding to the bipolar plates is formed; the sealing line slot which is is in an annular shape is formed in the platform area; the sealing line is embedded in the sealing line slot, and the height of the sealing line is more than the depth of the sealing line slot; the bipolar plates are superposed on the surface of the platform area in a mode of pressing the sealing line, thus realizing a sealing effect. According to the sealing structure, the sealing between the flow frame and the bipolar plates by virtue of the sealing line; particularly, the sealing line slot is formed in the bipolar plate connecting area of the flow frame, the sealing line is arranged in the sealing line slot, and the bipolar plates are superposed on the sealing line so that the flow frame and the bipolar plates are pressed under the pressure of stacked screw rods to realize the sealing; electrolytes positioned at both sides of the bipolar plates are isolated from being mutually blended. The sealing structure provided by the utility model is simple and suitable for industrial production.
Description
Technical field
The utility model belongs to flow battery and makes field, is specifically related to a kind of structure that seals between liquid flow frame and bipolar plates that realizes with the potted line form.
Background technology
Fossil energy is day by day exhausted, is the reply energy crisis, and global various countries are all trying to explore the development and utilization of new forms of energy, for example, and the wind-powered electricity generation and the solar energy that have begun to take shape at present.Wind energy and photovoltaic energy have cleaning, pollution-free, inexhausted characteristics, and be inexhaustible, and environmental friendliness; But wind energy and photovoltaic energy have again intrinsic shortcoming, as randomness, discontinuity and non-scheduling, these drawbacks limit the online of wind-powered electricity generation and photovoltaic generation, thereby reduced resource utilization, cause phenomenons such as " abandoning wind " and again and again occur.
For solving above-mentioned wasting of resources phenomenon; access energy-storage system between the new forms of energy such as wind-powered electricity generation and electrical network; energy-storage system can effectively be regulated the power output of wind light generation; make it to be in plateau; thereby the uncontrollable energy such as scene are become the controlled energy; solve the honourable difficult problem of new forms of energy online that waits, also for solving energy crisis, provide feasible scheme simultaneously.
Present energy-storage system roughly comprises several classes such as the energy storage of lithium electricity, plumbic acid energy storage, sodium-sulfur battery energy storage and all-vanadium flow battery energy storage., because its fail safe is not resolved yet, there are potential safety hazard in lithium electricity and sodium-sulphur battery, therefore are difficult to promote; The plumbic acid energy storage, because its efficiency is low, the life-span is short, also is difficult to promote; The all-vanadium flow battery energy storage has the useful life of unrivaled fail safe, overlength, the higher advantages such as energy conversion efficiency, therefore becomes the energy-storage system first choice.The all-vanadium flow battery energy-storage system has had the many places demonstrative project in the whole nation, wherein largest with the application of national grid in " wind-light storage transmission " project of Zhangbei County, reaches 2MW/4h, becomes the model of all-vanadium flow battery demonstrative project.
All-vanadium flow battery is comprised of several parts such as pile, pipeline, pump, electrolyte, and electrolyte circulates in pile through pump, realizes discharging and recharging.Pile is as the core link of all-vanadium flow battery, and the reasonability of its structure directly has influence on the safe operation cycle of system, also affects the property indices of system simultaneously, as current efficiency, energy efficiency etc.Electric pile structure mainly comprises combination of monomers, runner design, outer seal configuration design and inner seal structure etc.
At present, realize sealing in pile, namely realize the sealing of liquid flow frame and bipolar plates, mainstream technology is to take the form of laser welding, and liquid flow frame and bipolar plates are welded together, and prevents that the electrolyte of bipolar plates both sides from going here and there mutually, realizes the interior sealing of pile.Also take the hot plate welding technology, realize the connectivity problem between liquid flow frame and bipolar plates.All there is common weak point in these two kinds of methods, be the restriction that the material of bipolar plates selects to be subjected to the liquid flow frame material, liquid flow frame is selected any material, and the base material of bipolar plates must be selected corresponding material, the choice that there is no other, otherwise the problem that just there will be liquid flow frame and bipolar plates to weld.
The utility model content
The shortcoming of prior art in view of the above, the utility model is realized sealing between liquid flow frame and bipolar plates with the form of potted line, namely at the bipolar plates join domain of liquid flow frame, open the sealing wire casing, potted line is installed, bipolar plates is superimposed upon above potted line, make liquid flow frame and bipolar plates press down consolidation at the pressure that fills the heap screw rod and now seal, the electrolyte of bipolar plates both sides is kept apart, prevent its mutual string.
Reach for achieving the above object other relevant purposes, the utility model provides the hermetically-sealed construction of a kind of flow battery with liquid flow frame and bipolar plates, comprises at least:
Liquid flow frame, its inboard have been removed partial volume and have been formed the land regions corresponding with bipolar plates;
The sealing wire casing, be formed in described land regions in the form of a ring;
Potted line, be embedded in described sealing wire casing, and the height of described potted line is greater than the degree of depth of described sealing wire casing;
Bipolar plates, be stacked in described land regions surface by the mode of oppressing described potted line, realizes sealing.
As a kind of preferred version of flow battery of the present utility model with the hermetically-sealed construction of liquid flow frame and bipolar plates, the degree of depth of described land regions is 1～3mm.
As a kind of preferred version of flow battery of the present utility model with the hermetically-sealed construction of liquid flow frame and bipolar plates, the degree of depth of described sealing wire casing is 1～2mm, and width is 1～3mm.
As a kind of preferred version of flow battery of the present utility model with the hermetically-sealed construction of liquid flow frame and bipolar plates, the cross section of described potted line is circle or rectangle.
As a kind of preferred version of flow battery of the present utility model with the hermetically-sealed construction of liquid flow frame and bipolar plates, the decrement of described potted line is 10%～30%.
As flow battery of the present utility model a kind of preferred version with the hermetically-sealed construction of liquid flow frame and bipolar plates, the material of described potted line is a kind of in fluorubber and ethylene propylene diene rubber.
As flow battery of the present utility model a kind of preferred version with the hermetically-sealed construction of liquid flow frame and bipolar plates, described bipolar plates is a kind of in conductive plastic plate, graphite cake, titanium plate, titanium nitride plate, titanium nitride protective layer titanium plate.
As a kind of preferred version of flow battery of the present utility model with the hermetically-sealed construction of liquid flow frame and bipolar plates, described bipolar plates is the dull and stereotyped of light face or the flat board with groove corresponding with described sealing wire casing.
As mentioned above, the utility model provides the hermetically-sealed construction of a kind of flow battery with liquid flow frame and bipolar plates, comprises at least: liquid flow frame, its inboard have been removed partial volume and have been formed the land regions corresponding with bipolar plates; The sealing wire casing, be formed in described land regions in the form of a ring; Potted line, be embedded in described sealing wire casing, and the height of described potted line is greater than the degree of depth of described sealing wire casing; Bipolar plates, be stacked in described land regions surface by the mode of oppressing described potted line, realizes sealing.The utility model is realized sealing between liquid flow frame and bipolar plates with the form of potted line, namely at the bipolar plates join domain of liquid flow frame, open the sealing wire casing, potted line is installed, bipolar plates is superimposed upon above potted line, making liquid flow frame and bipolar plates press down consolidation at the pressure that fills the heap screw rod now seals, the electrolyte of bipolar plates both sides is kept apart, prevent its mutual string.The utility model scheme is simple, is applicable to industrial production.
Description of drawings
Fig. 1 is shown as the liquid flow frame perspective view of flow battery of the present utility model with the hermetically-sealed construction of liquid flow frame and bipolar plates.
Fig. 2 is shown as flow battery in the utility model embodiment 1 with the cross section structure schematic diagram of the hermetically-sealed construction of liquid flow frame and bipolar plates.
Fig. 3 is shown as flow battery in the utility model embodiment 2 with the cross section structure schematic diagram of the hermetically-sealed construction of liquid flow frame and bipolar plates.
The element numbers explanation
10 liquid flow frames
101 land regions
102 sealing wire casings
20 potted lines
30 bipolar plates
Embodiment
Below by particular specific embodiment explanation execution mode of the present utility model, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
See also Fig. 1 to Fig. 3.Notice, the appended graphic structure that illustrates of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
Embodiment 1
As Fig. 1～shown in Figure 2, the present embodiment provides the hermetically-sealed construction of a kind of flow battery with liquid flow frame and bipolar plates, comprises at least:
Potted line 20, be embedded in described sealing wire casing 102, and the height of described potted line 20 is greater than the degree of depth of described sealing wire casing 102;
As example, the degree of depth of described land regions 101 is 1～3mm.
As example, the degree of depth of described sealing wire casing 102 is 1～2mm, and width is 1～3mm.
As example, the cross section of described potted line 20 is circle or rectangle.
As example, the decrement of described potted line 20 is 10%～30%.
As example, the material of described potted line 20 is a kind of in fluorubber and ethylene propylene diene rubber.
As example, described bipolar plates 30 is a kind of in conductive plastic plate, graphite cake, titanium plate, titanium nitride plate, titanium nitride protective layer titanium plate.Described conductive plastic plate comprises a kind of in PE backing material plate, PP backing material plate, PVC backing material plate, PTFE backing material plate and LCP backing material plate.
As example, described bipolar plates 30 is the dull and stereotyped of light face or the flat board with groove corresponding with described sealing wire casing 102.
in the present embodiment, at first in the dark land regions 101 of liquid flow frame 10 and bipolar plates 30 join domain carve 3mm, and in described land regions 101 opening encapsulation wire casing 102, groove depth 1.5mm, groove width 3mm, then diameter is installed is the O type circle potted line of 3mm, the material of described potted line 20 is fluorubber, then bipolar plates 30 is superimposed upon above potted line 20, described bipolar plates 30 is the graphite cake of 3mm for thickness, and in the bipolar plates 30 regional carve degree of depth corresponding with described sealing wire casing 102, be 1mm, width is the 4mm groove, liquid flow frame 10 compresses under dress heap pressure with bipolar plates 30, to realize sealing.
Embodiment 2
as shown in Figures 1 and 3, the present embodiment provides the hermetically-sealed construction of a kind of flow battery with liquid flow frame and bipolar plates, at first in the dark land regions 101 of liquid flow frame 10 and bipolar plates 30 join domain carve 1mm, and in this land regions 101 opening encapsulation wire casing 102, groove depth 1.5mm, groove width 1.5mm, it is the O type circle potted line of 2mm that diameter is installed, the material of described potted line 20 is ethylene propylene diene rubber, bipolar plates 30 is superimposed upon above potted line 20, bipolar plates 30 is the titanium nitride protective layer titanium plate of light face and thickness 1mm, liquid flow frame 10 compresses under dress heap pressure with bipolar plates 30, to realize sealing.Wherein, described titanium nitride protective layer titanium plate, can plate by coating, also the titanium plate can be placed on nitriding in the high temperature furnace of nitrogen atmosphere and form.
In sum, the utility model provides the hermetically-sealed construction of a kind of flow battery with liquid flow frame and bipolar plates, comprises at least: liquid flow frame 10, its inboard have been removed partial volume and have been formed the land regions 101 corresponding with bipolar plates 30; Sealing wire casing 102, be formed in described land regions 101 in the form of a ring; Potted line 20, be embedded in described sealing wire casing 102, and the height of described potted line 20 is greater than the degree of depth of described sealing wire casing 102; Bipolar plates 30, be stacked in described land regions 101 surfaces by the mode of oppressing described potted line 20, realizes sealing.The utility model is realized sealing between liquid flow frame 10 and bipolar plates 30 with the form of potted line 20, namely at bipolar plates 30 join domains of liquid flow frame 10, open sealing wire casing 102, potted line 20 is installed, bipolar plates 30 is superimposed upon above potted line 20, making liquid flow frame 10 press down consolidation with bipolar plates 30 at the pressure that fills the heap screw rod now seals, the electrolyte of bipolar plates 30 both sides is kept apart, prevent its mutual string.The utility model scheme is simple, is applicable to industrial production.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of completing under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (8)
1. a flow battery, with the hermetically-sealed construction of liquid flow frame and bipolar plates, is characterized in that, comprises at least:
Liquid flow frame, its inboard have been removed partial volume and have been formed the land regions corresponding with bipolar plates;
The sealing wire casing, be formed in described land regions in the form of a ring;
Potted line, be embedded in described sealing wire casing, and the height of described potted line is greater than the degree of depth of described sealing wire casing;
Bipolar plates, be stacked in described land regions surface by the mode of oppressing described potted line, realizes sealing.
2. flow battery according to claim 1 is with the hermetically-sealed construction of liquid flow frame and bipolar plates, and it is characterized in that: the degree of depth of described land regions is 1～3mm.
3. flow battery according to claim 1 is with the hermetically-sealed construction of liquid flow frame and bipolar plates, and it is characterized in that: the degree of depth of described sealing wire casing is 1～2mm, and width is 1～3mm.
4. flow battery according to claim 1 is with the hermetically-sealed construction of liquid flow frame and bipolar plates, and it is characterized in that: the cross section of described potted line is circle or rectangle.
5. flow battery according to claim 1 is with the hermetically-sealed construction of liquid flow frame and bipolar plates, and it is characterized in that: the decrement of described potted line is 10%～30%.
6. flow battery according to claim 1 with the hermetically-sealed construction of liquid flow frame and bipolar plates, is characterized in that: the material of described potted line is a kind of in fluorubber and ethylene propylene diene rubber.
7. flow battery according to claim 1 with the hermetically-sealed construction of liquid flow frame and bipolar plates, is characterized in that: described bipolar plates is a kind of in conductive plastic plate, graphite cake, titanium plate, titanium nitride plate, titanium nitride protective layer titanium plate.
8. flow battery according to claim 1 is with the hermetically-sealed construction of liquid flow frame with bipolar plates, and it is characterized in that: described bipolar plates is the flat board of light face or the flat board with groove corresponding with described sealing wire casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202108721U CN203300744U (en) | 2013-04-23 | 2013-04-23 | Sealing structure for bipolar plates and flow frame for flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202108721U CN203300744U (en) | 2013-04-23 | 2013-04-23 | Sealing structure for bipolar plates and flow frame for flow battery |
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| Publication Number | Publication Date |
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| CN203300744U true CN203300744U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202108721U Expired - Lifetime CN203300744U (en) | 2013-04-23 | 2013-04-23 | Sealing structure for bipolar plates and flow frame for flow battery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811779A (en) * | 2014-03-13 | 2014-05-21 | 大连融科储能技术发展有限公司 | Electrode frame for flow cell, galvanic pile as well as cell system |
| CN108258262A (en) * | 2018-01-17 | 2018-07-06 | 承德新新钒钛储能科技有限公司 | The sealing structure and pile of a kind of flow battery |
| CN108400366A (en) * | 2018-03-09 | 2018-08-14 | 上海电气集团股份有限公司 | Sealing structure and flow battery comprising it |
| CN110071305A (en) * | 2018-01-22 | 2019-07-30 | 北京普能世纪科技有限公司 | A kind of sealing structure of pile and the non-entry position of pile |
| CN110970647A (en) * | 2018-09-30 | 2020-04-07 | 国家能源投资集团有限责任公司 | Flow battery capable of realizing sealing and battery stack |
| CN114361506A (en) * | 2021-12-31 | 2022-04-15 | 西子清洁能源装备制造股份有限公司 | Technological method for sealing flow battery assembly |
| CN114530621A (en) * | 2022-01-23 | 2022-05-24 | 纬景储能科技有限公司 | Flow battery sealing line, sealing wire slot and processing method thereof |
| CN115064723A (en) * | 2022-06-30 | 2022-09-16 | 北京朔景新能源科技有限公司 | Seal member and seal structure for fuel cell |
-
2013
- 2013-04-23 CN CN2013202108721U patent/CN203300744U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811779A (en) * | 2014-03-13 | 2014-05-21 | 大连融科储能技术发展有限公司 | Electrode frame for flow cell, galvanic pile as well as cell system |
| CN108258262A (en) * | 2018-01-17 | 2018-07-06 | 承德新新钒钛储能科技有限公司 | The sealing structure and pile of a kind of flow battery |
| CN110071305A (en) * | 2018-01-22 | 2019-07-30 | 北京普能世纪科技有限公司 | A kind of sealing structure of pile and the non-entry position of pile |
| CN108400366A (en) * | 2018-03-09 | 2018-08-14 | 上海电气集团股份有限公司 | Sealing structure and flow battery comprising it |
| CN108400366B (en) * | 2018-03-09 | 2024-02-20 | 上海电气(安徽)储能科技有限公司 | Sealing structure and flow battery comprising same |
| CN110970647A (en) * | 2018-09-30 | 2020-04-07 | 国家能源投资集团有限责任公司 | Flow battery capable of realizing sealing and battery stack |
| CN114361506A (en) * | 2021-12-31 | 2022-04-15 | 西子清洁能源装备制造股份有限公司 | Technological method for sealing flow battery assembly |
| CN114361506B (en) * | 2021-12-31 | 2024-09-13 | 西子清洁能源装备制造股份有限公司 | Process method for sealing flow battery assembly |
| CN114530621A (en) * | 2022-01-23 | 2022-05-24 | 纬景储能科技有限公司 | Flow battery sealing line, sealing wire slot and processing method thereof |
| CN115064723A (en) * | 2022-06-30 | 2022-09-16 | 北京朔景新能源科技有限公司 | Seal member and seal structure for fuel cell |
| CN115064723B (en) * | 2022-06-30 | 2023-12-26 | 北京朔景新能源科技有限公司 | Seal member and seal structure for fuel cell |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ADVANCED RESEARCH INSTITUTE, CHINESE ACAD Free format text: FORMER OWNER: SHANGHAI ZHONGKE INSTITUTE FOR ADVANCED STUDY Effective date: 20131113 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131113 Address after: 201210 Shanghai city Pudong New Area Hartcourt Road No. 99 Patentee after: SHANGHAI ADVANCED Research Institute CHINESE ACADEMY OF SCIENCES Address before: 201210 Shanghai city Pudong New Area Hartcourt Road No. 99 Patentee before: SHANGHAI ADVANCED Research Institute CHINESE ACADEMY OF SCIENCES |
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| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
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| CX01 | Expiry of patent term |