CN101651220A - High-tightness flow battery - Google Patents
High-tightness flow battery Download PDFInfo
- Publication number
- CN101651220A CN101651220A CN200910157588A CN200910157588A CN101651220A CN 101651220 A CN101651220 A CN 101651220A CN 200910157588 A CN200910157588 A CN 200910157588A CN 200910157588 A CN200910157588 A CN 200910157588A CN 101651220 A CN101651220 A CN 101651220A
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- Prior art keywords
- liquid flow
- battery
- flow frame
- proton exchange
- exchange membrane
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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
- Y02E60/10—Energy storage using batteries
-
- 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
Abstract
The invention provides a flow battery integrating device which comprises a negative electrode flow frame, a negative electrode, a proton exchange membrane, a positive electrode and a positive electrode flow frame which are sequentially connected with each other. The proton exchange membrane and the flow frames are spliced by acid-resistant binding agent, and the positive electrode and the proton exchange membrane, and the negative electrode and the proton exchange membrane are splice by conductive adhesive. Because the proton exchange membrane, and the flow frames and the electrodes on both sides are integrated in a bonding method, the invention simplifies the battery assembling process and enhances the tightness of the battery, and meanwhile, the integrating device reduces contact resistance between the membrane and the electrodes due to the integration of the membrane and the electrodes so as to reduce the internal resistance of the battery and enhance the efficiency of the battery.
Description
Technical field
The present invention relates to the flow battery field, more specifically design the fit of flow battery.
Background technology
The battery pile of flow battery (for example vanadium oxide reduction flow battery) normally is composed in series by the monocell of some.Each monocell is made of collector body (single collection plate), liquid flow frame, electrode, barrier film, electrode, liquid flow frame, collector body (single collection plate).With a battery pile that is made of two monocells is example, begin according to end plate, collector body (single collection plate), liquid flow frame, electrode, barrier film, electrode, liquid flow frame, collector body (two collection plate) the order assembling vanadium cell of liquid flow frame, electrode, collector plate (single collection plate), end plate from inlet.The installation diagram of battery pile as shown in Figure 1.Fastening in addition between end plate and the end plate with bolt, to reach the purpose of sealing.The cell stack timing should notice that the sealing of barrier film and liquid flow frame considers the sealing of liquid flow frame and collector again, and is comparatively complicated.Chinese patent application CN200820108417.X discloses slot electrode and collector bonding and be applied to vanadium halide redox flow battery by bonding agent, slot electrode and bonding agent adopt the halogen resistant corrosion material, such design has reached better sealing effectiveness, reduced the possibility that halogen volatilizes battery, when having reduced sealing for fastening requirement.
But, the assembly method of prior art remains in certain defective, because battery pile is that numerous battery component is fixed together, battery pack process of assembling more complicated, and bad sealing between each parts, contact resistance between the parts is bigger, causes the internal resistance of battery bigger, and battery efficiency reduces.
Summary of the invention
The invention provides a kind of improved assembly method, to overcome the bigger problem of flow battery contact resistance in the prior art.
Flow battery of the present invention comprises negative current collector, negative pole liquid flow frame, negative pole, proton exchange membrane, positive pole, anodal liquid flow frame, the plus plate current-collecting body that joins successively, wherein, bonds together by conducting resinl between proton exchange membrane and positive pole and/or the negative pole.
In a kind of preferred implementation, positive electrode and negative electrode are embedded in respectively in separately the liquid flow frame, and proton exchange membrane combines by the edge end face of bonding agent with anodal liquid flow frame and negative pole liquid flow frame.
In a kind of embodiment, positive electrode and negative electrode are formed by graphite felt, carbon paper, carbon cloth or carbon felt.
The flow battery of assembling according to the present invention owing to adopt the method for bonding that the electrode of proton exchange membrane and both sides is integrated, has reduced contact resistance therebetween, reduces the internal resistance of cell, has improved energy content of battery efficient thereby improve cell voltage efficient.
In preferred mode, by electrode being embedded in the liquid flow frame separately, and proton exchange membrane and liquid flow frame are used the bonding agent sealing-in along the edge, improved the sealing of battery, reduced the dynamics requirement that screw is fixed.
Description of drawings
Fig. 1 is the schematic diagram of a typical liquid stream battery stack;
Fig. 2 illustrates according to a kind of concrete bonding way of the present invention;
Fig. 3 illustrates the concrete bonding way of another kind according to the present invention;
Fig. 4 illustrates the resistance difference of product and prior art products according to the present invention.
Embodiment
Being used for bonding agent of the present invention can be bonding agents such as neutral silicone fluid sealant, three-aldehyde glue, cloud stone glue, neoprene, epoxy glue, modification acrylate, polyurethane, phenolic resins, organosilicon.For the flow battery that comprises strong acid in the electrolyte, for example all-vanadium flow battery should use acidproof bonding agent, and bonding agent commonly used includes but not limited to epoxy resin, polyamide, nitrile rubber etc.
Can be used for conducting resinl of the present invention and comprise that epoxy conducting, copper are that conducting resinl, silver are conducting resinl, graphite-filled type conducting resinl, composite nanometre powder conducting resinl etc.
In a kind of preferred implementation, positive electrode and negative electrode are embedded in respectively in separately the liquid flow frame, and proton exchange membrane combines by the edge end face of acidproof bonding agent with anodal liquid flow frame and negative pole liquid flow frame.
This structure comprises the bonding agent between two liquid flow frames 4,8 and film 6 and three assemblies, the conducting resinl between two electrodes 5,7 and the film 6.Film 6 is positioned at the centre of integral structure, be cuboid, two liquid flow frames 4,8 lay respectively at the both sides of film 6, and film 6 clampings, the outward flange of film overlaps (promptly size is consistent) fully with the edge of liquid flow frame housing, contact-making surface at liquid flow frame 4, film 6, liquid flow frame 8 three assemblies sticks together with bonding agent, and the size of liquid flow frame and film is made according to the design needs of redox flow batteries; Two electrodes are done positive pole and negative pole respectively, be positioned at the both sides of film, undertaken bonding by conducting resinl with catalytic activity, the size of electrode is identical with the size and the shape of liquid flow frame inside casing with shape, electrode can just in time be embedded in the liquid flow frame, and the inside casing side edge of the outward flange of electrode and liquid flow frame is touched.
Embodiment
Used unit is described:
End plate: PVC material, thick 3cm
Collector body (single collection plate): wait static pressure high-density graphite plate, thickness 6mm
Anodal: the polyacrylonitrile-radical graphite felt, thickness 5mm, the magnificent carbon element in Hunan nine Co., Ltd produces
Negative pole: polyacrylonitrile-radical graphite felt thickness 5mm, the magnificent carbon element in Hunan nine Co., Ltd
Liquid flow frame: sheet polyurethane, thick 5mm
Proton exchange membrane (barrier film): homogeneous phase cation exchange film (homemade PE-01), thick 0.3mm
The graphite-filled type conducting resinl of conducting resinl: ZY518, tall and erect hundred million Chemical Manufacture
Bonding agent: epoxy resin E-44, polyamide 650#
Example 1
The liquid flow frame 4,8 of flow battery is parallel bonding side by side by bonding agent with film 6, the outward flange of film 6 and liquid flow frame housing coincident, and the bonding position of bonding agent is the outward flange of film and the outward flange of liquid flow frame housing; The shape of electrode 5,7 is identical with size with the shape of liquid flow frame 4,8 inside casings with size, and electrode 5,7 is embedded in the liquid flow frame, and film 6 is parallel bonding side by side by conducting resinl with electrode 5,7, forms integral structure.
The bonding adhering with epoxy resin of using of liquid flow frame 4,8 and film 6, the graphite-filled type conductive adhesive of electrode 5,7 and film 6 usefulness.In this device, the outer rim of liquid flow frame is 80mm * 70mm, and interior frame is 40mm * 40mm, and liquid flow frame thickness is 5mm; The effective area of electrode is 40mm * 40mm, thickness is 5mm, carries out bondingly between electrode and the film with conducting resinl, and the coating method of conducting resinl is for being coated with four points 13 on film, the distributing position of four points is corresponding to four angles of electrode, and dotted line is represented electrode outward flange (see figure 2).
Example 2
In the present embodiment, liquid flow frame 4,8 and film 6 bonding with epoxy resin and polyamide be by volume 1: 0.1～10 mix carry out as bonding agent bonding, the graphite-filled type conducting resinl of the bonding usefulness of electrode and liquid flow frame.In this device, use the homogeneous phase anode membrane, thickness is 0.3mm, and the outer rim of liquid flow frame is 370mm * 270mm, and interior frame is 320mm * 210mm, and liquid flow frame thickness is 5mm; The effective area of electrode is 320mm * 210mm, thickness is 5mm, carries out bondingly between electrode and the film with conducting resinl, and the coating method of conducting resinl is for being coated with four edges 13 (mode of dotted line combination) on film, press close to the outward flange of electrode, dotted line is represented the outward flange (see figure 3) of electrode.
Performance test
Product 1:,, constitute a battery pack according to three monocells of the assembling of the order shown in Fig. 1 with the device assembled battery group in the example 1;
Product 2: used parts are identical with product 1, difference be in, used unit only is fixed together by holding screw, bonding agent of no use is bonding between the parts.Press three monocells of order assembling of Fig. 1 like this, constitute a battery pack.
Fig. 4 shows the resistance of product 1 and 2 in preceding 10 circulations.From Fig. 4 as seen, the average cell internal resistance of product 1 and 2 preceding 10 circulations is respectively 375.3m Ω and 435.4m Ω.Illustrate that integrated apparatus can reduce the internal resistance of cell.
Below in conjunction with the embodiments the present invention has been done elaboration.For a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the flow battery of a high-seal, comprise the negative current collector, negative pole liquid flow frame, negative pole, proton exchange membrane, positive pole, anodal liquid flow frame, the plus plate current-collecting body that join successively, it is characterized in that, bond together by conducting resinl between in described proton exchange membrane and described positive pole and/or the negative pole.
2. flow battery according to claim 1, wherein, described positive electrode and negative electrode are embedded in respectively in separately the liquid flow frame, and the edge end face of described proton exchange membrane by bonding agent and described anodal liquid flow frame and negative pole liquid flow frame is bonded as one.
3. flow battery according to claim 1, wherein, described positive electrode and negative electrode are formed by graphite felt, carbon paper, carbon cloth or carbon felt.
4. according to each described flow battery of claim 1 to 3, it is an all-vanadium flow battery, and wherein, described bonding agent and conducting resinl have acid resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101575880A CN101651220B (en) | 2009-07-15 | 2009-07-15 | High-tightness flow battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101575880A CN101651220B (en) | 2009-07-15 | 2009-07-15 | High-tightness flow battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101651220A true CN101651220A (en) | 2010-02-17 |
| CN101651220B CN101651220B (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101575880A Expired - Fee Related CN101651220B (en) | 2009-07-15 | 2009-07-15 | High-tightness flow battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN101651220B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841054A (en) * | 2010-03-25 | 2010-09-22 | 三一电气有限责任公司 | Assembling method of battery casing |
| CN102456904A (en) * | 2010-10-29 | 2012-05-16 | 中国科学院大连化学物理研究所 | Structure of liquid-flow energy storage cell |
| CN102468494A (en) * | 2010-10-29 | 2012-05-23 | 新奥科技发展有限公司 | All-vanadium redox flow battery electrode and preparation method thereof, and all-vanadium redox flow battery |
| CN102479963A (en) * | 2010-11-30 | 2012-05-30 | 新奥科技发展有限公司 | Membrane module, flow battery unit and battery stack |
| WO2012159581A1 (en) * | 2011-05-25 | 2012-11-29 | 深圳市金钒能源科技有限公司 | Method for sealing vanadium redox flow battery stack, as well as stack unit and vanadium redox flow battery stack |
| CN102854120A (en) * | 2012-09-09 | 2013-01-02 | 中国科学院金属研究所 | Method and apparatus used for testing proton exchange membrane tetravalent vanadium ion penetration rate |
| WO2013034079A1 (en) * | 2011-09-09 | 2013-03-14 | 深圳市金钒能源科技有限公司 | Integral frame plate of vanadium redox flow battery, preparation method thereof, and cell stack manufactured by using frame plate |
| WO2013075530A1 (en) * | 2011-11-22 | 2013-05-30 | 深圳市金钒能源科技有限公司 | Method for manufacturing o-ring ion exchange membrane integrated component |
| CN103647099A (en) * | 2013-12-06 | 2014-03-19 | 中国东方电气集团有限公司 | Flow frame component and flow battery |
| CN105047945A (en) * | 2015-06-10 | 2015-11-11 | 中国东方电气集团有限公司 | Electrode module for flow battery, preparation method of electrode module and battery stack containing electrode module |
| CN105140543A (en) * | 2015-08-28 | 2015-12-09 | 中国东方电气集团有限公司 | Flow cell ion exchange membrane assembly, preparing method of flow cell ion exchange membrane assembly and flow cell comprising flow cell ion exchange membrane assembly |
| CN107210476A (en) * | 2015-02-13 | 2017-09-26 | Ewe能源科技研究中心协会 | Component and its manufacture method for oxidation, reduction liquid element cell |
| CN108886162A (en) * | 2016-04-18 | 2018-11-23 | 罗伯特·博世有限公司 | Electrochemical cell including electrode isolation frame |
| WO2020098106A1 (en) * | 2018-11-13 | 2020-05-22 | 中南大学 | Integrated bipolar electrode, preparation method therefor and application thereof |
| CN112786911A (en) * | 2020-12-31 | 2021-05-11 | 大连融科储能技术发展有限公司 | Bipolar plate and electrode frame integrated structure and preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2000277032A1 (en) * | 2000-09-15 | 2002-03-26 | Lynntech, Inc. | Bonding electrochemical cell components |
| JP3682244B2 (en) * | 2001-06-12 | 2005-08-10 | 住友電気工業株式会社 | Cell frame for redox flow battery and redox flow battery |
-
2009
- 2009-07-15 CN CN2009101575880A patent/CN101651220B/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841054A (en) * | 2010-03-25 | 2010-09-22 | 三一电气有限责任公司 | Assembling method of battery casing |
| CN102456904A (en) * | 2010-10-29 | 2012-05-16 | 中国科学院大连化学物理研究所 | Structure of liquid-flow energy storage cell |
| CN102468494A (en) * | 2010-10-29 | 2012-05-23 | 新奥科技发展有限公司 | All-vanadium redox flow battery electrode and preparation method thereof, and all-vanadium redox flow battery |
| CN102468494B (en) * | 2010-10-29 | 2016-02-10 | 新奥科技发展有限公司 | A kind of vanadium redox flow battery electrode and preparation method thereof, and all-vanadium flow battery |
| CN102456904B (en) * | 2010-10-29 | 2014-04-09 | 大连融科储能技术发展有限公司 | Structure of liquid-flow energy storage cell |
| CN102479963A (en) * | 2010-11-30 | 2012-05-30 | 新奥科技发展有限公司 | Membrane module, flow battery unit and battery stack |
| CN102479963B (en) * | 2010-11-30 | 2015-09-16 | 新奥科技发展有限公司 | Membrane module, flow battery unit and battery pile |
| WO2012159581A1 (en) * | 2011-05-25 | 2012-11-29 | 深圳市金钒能源科技有限公司 | Method for sealing vanadium redox flow battery stack, as well as stack unit and vanadium redox flow battery stack |
| WO2013034079A1 (en) * | 2011-09-09 | 2013-03-14 | 深圳市金钒能源科技有限公司 | Integral frame plate of vanadium redox flow battery, preparation method thereof, and cell stack manufactured by using frame plate |
| WO2013075530A1 (en) * | 2011-11-22 | 2013-05-30 | 深圳市金钒能源科技有限公司 | Method for manufacturing o-ring ion exchange membrane integrated component |
| CN102854120B (en) * | 2012-09-09 | 2014-12-24 | 中国科学院金属研究所 | Method and apparatus used for testing proton exchange membrane tetravalent vanadium ion penetration rate |
| CN102854120A (en) * | 2012-09-09 | 2013-01-02 | 中国科学院金属研究所 | Method and apparatus used for testing proton exchange membrane tetravalent vanadium ion penetration rate |
| CN103647099A (en) * | 2013-12-06 | 2014-03-19 | 中国东方电气集团有限公司 | Flow frame component and flow battery |
| CN107210476A (en) * | 2015-02-13 | 2017-09-26 | Ewe能源科技研究中心协会 | Component and its manufacture method for oxidation, reduction liquid element cell |
| CN105047945A (en) * | 2015-06-10 | 2015-11-11 | 中国东方电气集团有限公司 | Electrode module for flow battery, preparation method of electrode module and battery stack containing electrode module |
| CN105140543A (en) * | 2015-08-28 | 2015-12-09 | 中国东方电气集团有限公司 | Flow cell ion exchange membrane assembly, preparing method of flow cell ion exchange membrane assembly and flow cell comprising flow cell ion exchange membrane assembly |
| CN108886162A (en) * | 2016-04-18 | 2018-11-23 | 罗伯特·博世有限公司 | Electrochemical cell including electrode isolation frame |
| CN108886162B (en) * | 2016-04-18 | 2021-09-28 | 罗伯特·博世有限公司 | Electrochemical cell comprising electrode isolation frame |
| WO2020098106A1 (en) * | 2018-11-13 | 2020-05-22 | 中南大学 | Integrated bipolar electrode, preparation method therefor and application thereof |
| US11380903B2 (en) | 2018-11-13 | 2022-07-05 | Central South University | Integrated bipolar electrode, preparation method and use thereof |
| CN112786911A (en) * | 2020-12-31 | 2021-05-11 | 大连融科储能技术发展有限公司 | Bipolar plate and electrode frame integrated structure and preparation method and application thereof |
| CN112786911B (en) * | 2020-12-31 | 2022-02-11 | 大连融科储能技术发展有限公司 | Bipolar plate and electrode frame integrated structure and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101651220B (en) | 2011-11-09 |
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Owner name: DALI ELECTRICAL ENGINEERING XIANGYANG CO., LTD. Free format text: FORMER OWNER: HUNAN WEIBANG NEW ENERGY CO., LTD. Effective date: 20120702 |
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Effective date of registration: 20120702 Address after: 410083 Mount Yuelu, Hunan, Changsha Co-patentee after: Big Pawer Electrical Technology Xiangyang Co., Ltd. Patentee after: Central South University Address before: 410083 Mount Yuelu, Hunan, Changsha Co-patentee before: Hunan Weibang New Energy Co., Ltd. Patentee before: Central South University |
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