CN110350203A - Cell bipolar plate - Google Patents
Cell bipolar plate Download PDFInfo
- Publication number
- CN110350203A CN110350203A CN201810288159.6A CN201810288159A CN110350203A CN 110350203 A CN110350203 A CN 110350203A CN 201810288159 A CN201810288159 A CN 201810288159A CN 110350203 A CN110350203 A CN 110350203A
- Authority
- CN
- China
- Prior art keywords
- bipolar plate
- cell bipolar
- dis
- eff
- carbon felt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8626—Porous electrodes characterised by the form
- H01M4/8631—Bipolar electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/96—Carbon-based electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type 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
A kind of cell bipolar plate, it includes dis-eff, it is bonded to the carbon felt layer of the dis-eff two sides, anode electrolyte and electrolyte liquid, the carbon felt layer is bonded to the dis-eff two sides by a kind of moulding material with compared with high adhesiveness, each dis-eff two sides are bonded with the carbon felt layer being closely sized to the dis-eff, so as to form a bipolarity matrix, the cell bipolar plate can be formed by the stacking of several bipolarity matrixes, fill anode electrolyte and electrolyte liquid respectively to form the anode and cathode of cell bipolar plate in the cell bipolar plate two sides, the positive electrode and negative electrode of the cell bipolar plate electrically conduct, the bipolar plate of redox flow battery for forming internal parallel is stacked by multiple bipolar matrixes, it is simple with structure, impedance reduces, the increased advantage of efficiency.
Description
[technical field]
The invention belongs to flow battery fields, specifically provide a kind of cell bipolar plate of flow battery.
[background technique]
Worldwide energy shortage and the exacerbated situation of environment promote countries in the world to develop and utilize renewable energy
The cry in source grows to even greater heights.But no matter solar energy or wind energy, all there is the unstability of energy supply, need function admirable
Energy-storage system is matched.Peak load shifting, the balanced load of power grid are also required to scale energy storage technology.The flow battery service life is long, can
By property height, flexible design, without extreme terrain require, operation and maintenance cost it is lower, be ideal scale energy storage device.So
And flow battery group impedance currently on the market is larger, such as No. CN103268945A revealed liquid stream of Chinese invention patent
Cell Bipolar pole plate, it includes the flexible bezel equipped with cavity to bipolar plates, the bipolar plates being installed in cavity, and is passed through
Glue layer is pasted on the carbon felt layer of two side of bipolar plates, and the entire graphite felt is placed in the bipolar plates, have compared with
Big resistance affects the use efficiency of Cell Bipolar pole plate.
Therefore, it is necessary to a kind of new cell bipolar plate and its battery pack heap be designed, to improve the above problem.
[summary of the invention]
The purpose of the present invention is to provide a kind of cell bipolar plates for advantageously reducing impedance.
The purpose of the present invention is achieved through the following technical solutions: a kind of cell bipolar plate comprising dis-eff is bonded to
Carbon felt layer, anode electrolyte and the electrolyte liquid of the dis-eff two sides, the carbon felt layer have higher glue by a kind of
The moulding material of connecing property is bonded to the dis-eff two sides, and each dis-eff two sides are bonded with to be closely sized to the dis-eff
Carbon felt layer the Cell Bipolar can be formed by the stacking of several bipolarity matrixes so as to form a bipolarity matrix
Plate, the cell bipolar plate two sides fill anode electrolyte and electrolyte liquid respectively with formed the anode of cell bipolar plate and
The positive electrode and negative electrode of cathode, the cell bipolar plate electrically conduct.
Further, the dis-eff includes the upper and lower surfaces being oppositely arranged and left and right side, and when stacking, one bipolar
The upper surface of body with the lower surface of adjacent bipolar body is corresponding contacts, the cell bipolar plate can be formed by being stacked with this.
Further, the carbon felt layer is bonded to the left and right sides of the dis-eff in pairs, the width of the carbon felt layer and
Length is respectively less than the width and length of the dis-eff.
Further, each dis-eff and carbon felt layer are in rectangular slat shape, and the cell bipolar plate is long in flat plate
The longest edge of cube or square setting, the cuboid extends along the longitudinally of the carbon felt layer, and the cuboid is most
Short side extends along the thickness direction of the carbon felt layer.
Further, the moulding material is made of a kind of material of waterproof and anticorrosion.
Further, the material of the waterproof and anticorrosion is conductive plastics or plastics dielectric material or glue.
Further, the material of the waterproof and anticorrosion is PVC material or ABS plastic or PP plastics.
Further, the moulding material sufficiently obstructs the carbon felt layer of the positive and negative anodes and the tolerable temperature of the carbon felt layer
It is 100 degrees Celsius or more.
Further, the mode that the carbon felt layer is bonded to dis-eff two sides passes through fixed clamp, glue spraying, shearing or superposition
One or more of.
Further, it electrically conducts between the adjacent bipolarity matrix that every two stacks, the moulding material is not broken
The monolithic devices of the bad carbon felt layer, still have good conductive property between the anode electrolyte and electrolyte liquid.
Compared with prior art, the invention has the following beneficial effects: cell bipolar plates of the present invention by double described in several
Pole matrix stacks composition and its internal formation parallel-connection structure, and the positive electrode and negative electrode of the cell bipolar plate are opposite on longitudinally to be set
It sets, can effectively reduce the impedance of cell bipolar plate, led in addition, the cell bipolar plate is used as using the carbon felt layer of graphite felt material
Body, graphite felt have single layer transverse direction stratiform organizer to the higher characteristic of conductivity, therefore carry out battery unit using this direction
Parallel connection, can effectively reduce internal resistance, improve conductivity.
[Detailed description of the invention]
Fig. 1 is the perspective view of cell bipolar plate of the present invention.
Fig. 2 is the main view of cell bipolar plate shown in Fig. 1.
Fig. 3 is cell bipolar plate top view shown in Fig. 1.
Fig. 4 is the side view of cell bipolar plate shown in Fig. 1.
Fig. 5 is the perspective view of a bipolarity matrix of cell bipolar plate of the present invention.
Fig. 6 is the perspective view of bipolarity matrix shown in Fig. 5.
Fig. 7 is the top view of bipolarity matrix shown in Fig. 5.
Fig. 8 is the side view of bipolarity matrix shown in Fig. 5.
[main element symbol description]
100 bipolarity matrix 10 of cell bipolar plate
1 upper surface 11 of dis-eff
12 left side 13 of lower surface
14 carbon felt layer 2 of right side
The present invention that the following detailed description will be further explained with reference to the above drawings.
[specific embodiment]
Hereinafter, the specific embodiment that Fig. 1 to Fig. 8 will be combined to introduce cell bipolar plate 100 of the present invention.The present invention provides
A kind of cell bipolar plate 100 for flow battery, the cell bipolar plate 100 include dis-eff 1, are bonded to the dis-eff
The carbon felt layer 2 formed by graphite felt, anode electrolyte (not indicating) and the electrolyte liquid (not indicating) of 1 two sides.The electricity
Pond bipolar plates 100 have lower internal resistance, so that the cell bipolar plate 100 has higher energy efficiency.
As shown in Figures 1 to 4, in the present embodiment, each dis-eff 1 and carbon felt layer 2 are in rectangular slat shape, each bipolar
1 two sides of body are bonded with the carbon felt layer 2 being closely sized to the dis-eff 1, with this so as to form a bipolarity matrix 10, mistake
The stacking of several bipolarity matrixes 10 can form the cell bipolar plate 100, and 100 two sides of cell bipolar plate are filled respectively
The anode electrolyte and the electrolyte liquid are to form the anode and cathode of cell bipolar plate 100, the Cell Bipolar
The positive electrode and negative electrode of plate 100 electrically conduct.Wherein the carbon felt layer 2 of side absorb the anode electrolyte formed anode and the other side
Carbon felt layer 2 absorb electrolyte liquid and form cathode, the carbon felt layer 2 is viscous by a kind of moulding material with compared with high adhesiveness
It is connected to 1 two sides of dis-eff, wherein the moulding material is made of a kind of material of waterproof and anticorrosion, further, described anti-
Water corrosion-resistant material is PVC (PolyVinyl Chloride) material or ABS (Acrylonitrile Butadiene
Styrene) plastics or PP (PolyVinyl Chloride) plastics, the material of the waterproof and anticorrosion are conductive plastics or do not lead
Electric plastics or glue etc. can sufficiently obstruct the material of the positive and negative anodes of the carbon felt layer 2 of 1 two sides of dis-eff, described to prevent
The problems such as gas leakage leakage, mutually pollution, occurs for positive and negative electrode electrolyte.Temperature often increases cell bipolar plate 100 at work,
And the resistant material needs to be bonded at the time of molding the surface of the carbon felt layer 2, therefore the material tool of the waterproof and anticorrosion
Have that waterproof, corrosion-resistant, mobility is good and 100 DEG C of tolerable temperature with first-class characteristic.The material of the waterproof and anticorrosion can with but it is unlimited
In PVC material or ABS plastic or PP plastic or other material.
Incorporated by reference to Fig. 5 to Fig. 8, the dis-eff 1 include the upper and lower surfaces 11,12 that are oppositely arranged and left and right side 13,
14, when stacking, the upper surface 11 of a dis-eff 1 is contacted with the lower surface 12 of adjacent bipolar body 1 correspondence, and being stacked with this can form
The cell bipolar plate 100.The carbon felt layer 2 is bonded to the left and right sides of the dis-eff 1, the width of the carbon felt layer 2 in pairs
Degree and length are respectively less than the width and length of the dis-eff 1.The mode that the carbon felt layer 2 is bonded to 1 two sides of dis-eff passes through
One or more of fixed clamp, glue spraying, shearing or superposition.The cell bipolar plate 100 in flat plate cuboid or
The longest edge of square setting, the cuboid extends along the longitudinally of the carbon felt layer 2, the most short side edge of the cuboid
The thickness direction of the carbon felt layer 2 extends.The positive electrode and negative electrode are arranged in parallel on the longitudinally, what every two stacked
Electrically conduct between adjacent bipolarity matrix 10, the moulding material does not destroy the monolithic devices of the carbon felt layer 2, it is described just
It is still had good conductive property between pole electrolyte and electrolyte liquid.Therefore, when assembling required cell bipolar plate 100
Afterwards, several described dis-effs 1 practice the intermediate in alignment for forming a rectangle in the vertical direction, in the rectangle
Mesosome two sides are bonded with several carbon felt layers 2 corresponding with aforementioned dis-eff 1, and wherein the carbon felt layer 2 of side constitutes described
The anode of cell bipolar plate 100, the carbon felt layer 2 of the dis-eff other side constitute the cathode of the cell bipolar plate 100.
Whereby, the cell bipolar plate 100 is formed by several bipolarity matrixes 10 stacking, due to all positive polaritys
Carbon felt layer 2 be located at the same side of the dis-eff 1, the carbon felt layer 2 of all negative polarity is located at and 2 phase of positive polarity carbon felt layer
For the other side of the binary body 1, so as to form the positive and negative anodes being oppositely arranged, every bipolar matrix 10 and neighboring bipolar
While matrix 10 electrically conducts, reach state in parallel two-by-two, is in parallel between final all bipolarity matrixes 10.Institute
With, the present invention being specifically designed can reduce and even be eliminated due between monomer by the bipolar plate of redox flow battery 100 of internal parallel
Potential difference caused by internal self discharge problem, electrolysis caused by the pressure seal being easily solved in series connection monomer structure is uneven
The problems such as liquid leaks.The bipolar plate of redox flow battery structure of internal parallel can specification electrode reaction current distribution, alleviate monomer
Strict demand in terms of consistency, easy to process and assembling, structure is simple, easy to maintain, can be used for being electrolysed, electroplating industry and liquid
In galvanic battery system.Using the bipolar plate of redox flow battery 100 of internal parallel, thus overall impedance can be reduced, pass through bipolarity
The target for reaching extension voltage and current in series and parallel between matrix 10；In addition, the cell bipolar plate 100 uses several carbon felts
Layer 2 is used as conductor, since carbon felt layer 2 has single layer transverse direction stratiform organizer to the higher characteristic of conductivity, utilizes this side
To the parallel connection for carrying out battery unit, internal resistance can be effectively reduced, improves conductivity.
The foregoing is merely some embodiments of the invention, the embodiment being not all of, ordinary skill people
Any equivalent variation that member takes technical solution of the present invention by reading description of the invention, is right of the invention
It is required that being covered.
Claims (10)
1. a kind of cell bipolar plate comprising dis-eff, the carbon felt layer for being bonded to the dis-eff two sides, anode electrolyte and
Electrolyte liquid, the carbon felt layer are bonded to the dis-eff two sides by a kind of moulding material with compared with high adhesiveness,
Be characterized in that: each dis-eff two sides are bonded with the carbon felt layer being closely sized to the dis-eff, bipolar so as to form one
Property matrix, the cell bipolar plate can be formed by the stacking of several bipolarity matrixes, the cell bipolar plate two sides difference
Anode electrolyte and electrolyte liquid are filled to form the anode and cathode of cell bipolar plate, the anode of the cell bipolar plate
It electrically conducts with cathode.
2. cell bipolar plate as described in claim 1, it is characterised in that: the dis-eff includes the upper and lower table being oppositely arranged
Face and left and right side, when stacking, the upper surface of a dis-eff with the lower surface of adjacent bipolar body is corresponding contacts, stacked with this
The cell bipolar plate can be formed.
3. cell bipolar plate as claimed in claim 2, it is characterised in that: the carbon felt layer is bonded to the dis-eff in pairs
The left and right sides, the width and length of the carbon felt layer are respectively less than the width and length of the dis-eff.
4. cell bipolar plate as described in claim 1, it is characterised in that: each dis-eff and carbon felt layer are in rectangular slat shape,
The cell bipolar plate is arranged in flat plate cuboid or square, and the longest edge of the cuboid is along the carbon felt layer
Longitudinally extends, and the most short side of the cuboid extends along the thickness direction of the carbon felt layer.
5. cell bipolar plate as described in claim 1, it is characterised in that: the moulding material by a kind of waterproof and anticorrosion material
It is made.
6. cell bipolar plate as claimed in claim 5, it is characterised in that: the material of the waterproof and anticorrosion be conductive plastics or
Plastics dielectric material or glue.
7. cell bipolar plate as claimed in claim 6, it is characterised in that: the material of the waterproof and anticorrosion is PVC material or ABS
Plastics or PP plastics.
8. cell bipolar plate as described in claim 1, it is characterised in that: the moulding material sufficiently obstructs the positive and negative anodes
The tolerable temperature of carbon felt layer and the carbon felt layer is 100 degrees Celsius or more.
9. cell bipolar plate as described in claim 1, it is characterised in that: the carbon felt layer is bonded to the mode of dis-eff two sides
Pass through one or more of fixed clamp, glue spraying, shearing or superposition.
10. cell bipolar plate as described in claim 1, it is characterised in that: every two stack adjacent bipolarity matrix it
Between electrically conduct, the moulding material does not destroy the monolithic devices of the carbon felt layer, the anode electrolyte and electrolyte liquid
Between still have good conductive property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288159.6A CN110350203A (en) | 2018-04-03 | 2018-04-03 | Cell bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288159.6A CN110350203A (en) | 2018-04-03 | 2018-04-03 | Cell bipolar plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110350203A true CN110350203A (en) | 2019-10-18 |
Family
ID=68172501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810288159.6A Pending CN110350203A (en) | 2018-04-03 | 2018-04-03 | Cell bipolar plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110350203A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6656639B1 (en) * | 1999-03-23 | 2003-12-02 | Unisearch Limited | Bipolar electrode having non-conductive electrode substrate and fibrous electrochemically active material |
| US20100297520A1 (en) * | 2007-12-05 | 2010-11-25 | Heinz Wenzl, Am Bergwaeldchen 27 | Electrochemical energy conversion system |
| CN103268945A (en) * | 2013-07-02 | 2013-08-28 | 成都赢创科技有限公司 | Bipolar electrode for flow battery and manufacturing process thereof |
| CN104538661A (en) * | 2015-01-05 | 2015-04-22 | 攀钢集团研究院有限公司 | Vanadium cell, vanadium cell end collector plate, vanadium cell dual collector plate and preparation of vanadium cell end collector plate and vanadium cell dual collector plate |
| CN106654294A (en) * | 2017-01-16 | 2017-05-10 | 中国东方电气集团有限公司 | Bipolar plate, flow battery and flow battery stack |
-
2018
- 2018-04-03 CN CN201810288159.6A patent/CN110350203A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6656639B1 (en) * | 1999-03-23 | 2003-12-02 | Unisearch Limited | Bipolar electrode having non-conductive electrode substrate and fibrous electrochemically active material |
| US20100297520A1 (en) * | 2007-12-05 | 2010-11-25 | Heinz Wenzl, Am Bergwaeldchen 27 | Electrochemical energy conversion system |
| CN103268945A (en) * | 2013-07-02 | 2013-08-28 | 成都赢创科技有限公司 | Bipolar electrode for flow battery and manufacturing process thereof |
| CN104538661A (en) * | 2015-01-05 | 2015-04-22 | 攀钢集团研究院有限公司 | Vanadium cell, vanadium cell end collector plate, vanadium cell dual collector plate and preparation of vanadium cell end collector plate and vanadium cell dual collector plate |
| CN106654294A (en) * | 2017-01-16 | 2017-05-10 | 中国东方电气集团有限公司 | Bipolar plate, flow battery and flow battery stack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101587959B (en) | Electrode frame and all-vanadium redox flow battery pile | |
| CN105531862A (en) | Battery cell stack and redox flow battery | |
| KR101335544B1 (en) | Redox flow battery | |
| WO2009040335A3 (en) | High temperature electrolyser with temperature homogenisation device | |
| CN104170146A (en) | Separatorless storage battery | |
| CN102867978B (en) | Flow energy storage battery structure | |
| CN104600340A (en) | Electrode frame structure of single batteries in redox flow battery as well as single battery and electric pile | |
| US20220102740A1 (en) | Electrode structure including electrode fiber having higher density of vertical tows to parallel tows, flow battery stack including the same, and sealing structure including sealing gaskets connected by sealing wire | |
| US10680254B2 (en) | Redox flow battery | |
| WO2012042288A1 (en) | Frameless electrochemical cell stack having self centering rigid plastic bushings in aligned through holes of interconnects and membrane assemblies | |
| CN106876765A (en) | A kind of flow cell pile | |
| CN102170008B (en) | Non-current vanadium element secondary battery | |
| CN111326758A (en) | Zinc-bromine single flow battery | |
| CN206711972U (en) | All-vanadium flow battery | |
| CN110350203A (en) | Cell bipolar plate | |
| CN208923281U (en) | A kind of zinc bromine single flow battery | |
| CN207977403U (en) | A kind of proton exchange film fuel cell electric piling | |
| CN105024032A (en) | Matching structure of polar plate and electrode and flow battery with matching structure | |
| CN215184083U (en) | Single-pole plate sealing structure of flow battery | |
| CN102324491B (en) | Pole piece for laminated lithium ion battery and laminated fixture | |
| TW201644087A (en) | Cell module | |
| WO2021203935A1 (en) | Composite electrode for flow cell, flow cell, and pile | |
| CN113948748A (en) | Connecting plate and solid oxide fuel cell/electrolytic cell stack | |
| CN211957803U (en) | Fuel cell stack structure | |
| CN209447939U (en) | A kind of tandem electrode of liquid flow cell frame and its battery stack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191018 |
|
| RJ01 | Rejection of invention patent application after publication |