CN202004086U - Integral composite electrode plate - Google Patents
Integral composite electrode plate Download PDFInfo
- Publication number
- CN202004086U CN202004086U CN2011201145565U CN201120114556U CN202004086U CN 202004086 U CN202004086 U CN 202004086U CN 2011201145565 U CN2011201145565 U CN 2011201145565U CN 201120114556 U CN201120114556 U CN 201120114556U CN 202004086 U CN202004086 U CN 202004086U
- Authority
- CN
- China
- Prior art keywords
- electrode
- graphite
- plate
- electrode plate
- composite electrode
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Abstract
The utility model belongs to the cell manufacture and energy storage field, in particular to an integral composite electrode plate. The integral composite electrode plate is characterized by comprising a resin plate. Integral conductive substrates are arranged on both surfaces of the resin plate, and the conductive substrates are carbon felts and/or graphite felts. The integral composite electrode plate is high in electric conductivity, even in resistance of various directions and simple in working process.
Description
Technical field
The utility model relates to battery manufacturing and energy field of storage, particularly integrated combination electrode plate.
Background technology
Electric energy is the modern society human lives and produces indispensable secondary energy sources.Along with the raising of The development in society and economy and living standards of the people, human demand to electric power is increasing day by day.Therefore, necessary constantly all kinds of power stations of development and electrical power trans mission/distribution system are to satisfy life and the production demand to electric power.For making full use of all kinds of electricity generation systems and realizing stable power-supplying, the efficient electric power storage technology of exploitation extensive (MW class) is very necessary.Extensive efficient electric power storage technology mainly contains pump up water energy storage technology and liquid stream accumulate pool technology.Both compare, and the latter has setting and is not subjected to geographical conditions restriction, advantages such as scale is flexible, the construction period is short, small investment.The application of extensive efficient liquid energy-storage system at first is and the supporting use of renewable energy systems such as wind energy, solar energy to make its stable power-supplying; Next is the peak load regulation network of thermal power generation and nuclear power station, and the direct current large electricity consumer stores " paddy "; The emergency power supply that also can be used as the unusual time such as natural calamity, war, the stand-by station in important military base etc.Up to the present, the more liquid flow energy storage battery of research has: siderochrome liquid flow energy storage battery, sodium polysulfide/bromine liquid flow energy storage battery and all-vanadium liquid flow energy storage battery.Compare with preceding two kinds of flow batteries, the energy efficiency of all-vanadium flow battery is higher, generally can reach 75%-80%.Therefore, all-vanadium liquid flow energy storage battery has industrialization prospect most.All-vanadium flow battery is with the active material of vanadium ion fluid as cell reaction, and positive active material is V
+ 4/ V
+ 5Electricity is right, and negative electrode active material is V
+ 2/ V
+ 3Electricity is right.Separate with amberplex between the positive and negative electrode, when discharging and recharging inside battery by the hydrogen proton in film directional migration and conducting.The both positive and negative polarity charging of battery is as follows: positive pole: V
+ 4-e charge/discharge V
+ 5Negative pole: V
+ 3-e charge/discharge V
+ 2People such as the sum of University of New South Wales and skylass-kazacos have carried out preliminary research since 1984 to all-vanadium liquid flow energy storage battery, in recent ten years, though still there are some problems in electrode material and ion exchange membrane material, full vanadium liquid energy-storage battery has still obtained bigger development.
The main effect of electrode provides the place of electrochemical reaction, therefore needs certain catalytic activity.The effect of bipolar plates mainly is to collect the electric current of electrochemical reaction generation and separate positive and negative electrolyte, therefore should have good electrical conductivity and liquid-proof.Flow battery also must be considered its energy conversion efficiency as a kind of energy storage device simultaneously.Therefore, the contact resistance between electrode and the bipolar plates must be as much as possible little.In addition, in all-vanadium liquid flow energy storage battery, employed electrolyte is the sulfuric acid solution of vanadium ion, has very strong corrosivity; Simultaneously, V
5+Have stronger oxidizability, therefore electrode and the bipolar plates as full vanadium liquid energy-storage battery also must have enough corrosion resistances.The type of electrodes that is used for all-vanadium liquid flow energy storage battery at present mainly comprises metal electrode and carbon pole; Bipolar plates mainly contains graphite bi-polar plate, and carbon is moulded bipolar plates and metal double polar plates.In addition, because the compact conformation of integrated electrode plate can reduce the contact resistance between graphite felt and the bipolar plates, therefore also become present focus.1, electrode material (1) metal species electrode material, the metal electrode material that is used as full alum liquid flow energy storage battery comprises gold, lead, titanium, titanium base platinum and titanium base yttrium oxide etc.V
+ 4/ V
+ 5Electricity is to showing costing an arm and a leg of stronger electrochemistry irreversibility and gold on golden electroplax.The surface of lead electrode and titanium electrode then generates passivating film easily, causes the sheet resistance of electrode to increase, and what be unfavorable for reacting further carries out.Titanium base platinum electrode has been avoided the problem of titanium electrode surface generation passivating film, and V
+ 4/ V
+ 5The electricity to and V
+ 2/ V
+ 3Electricity has been to having shown excellent electrochemical reversibility in titanium base platinum electrode surface, but because titanium base platinum electrode cost is higher, is not suitable for large-scale application.In addition, though V
+ 4/ V
+ 5The electricity to and V
+ 2/ V
+ 3Electricity is to also having higher electrochemical reversibility on titanium base iridium oxide electrode surface, and demonstrated good electro-chemical activity and chemical stability, but because the price of titanium base yttrium oxide is very expensive, therefore the electrode material of uncomfortable cooperation solution battery.In a word, though V
+ 4/ V
+ 5The electricity to and V
+ 2/ V
+ 3Electricity is to better in the invertibity of noble metal electrode surface electrochemistry reaction, yet the cost costliness of noble metal electrode can not be used on a large scale.V
+ 4/ V
+ 5The electricity to and V
+ 2/ V
+ 3Electricity is to relatively poor in the invertibity of base metal electrode surface electrochemical reaction, and corrosion-resistant, also is not suitable for being applied to all-vanadium liquid flow energy storage battery.(2) carbon pole material, the result shows V
+ 4/ V
+ 5The electricity to and V
+ 2/ V
+ 3Electricity has high invertibity to the electrochemical redox reaction at graphite electrode surface, but in charging process, when current potential was too high, the graphite cake surface that is used as anode can be corroded.At graphite cake surface applied one deck polyaniline, can avoid the generation of above-mentioned corrosion phenomenon, but polyaniline coating can be from the graphite cake sur-face peeling after discharging and recharging several times.V
+ 4/ V
+ 5Electricity has then shown irreversibility to electrochemical reaction on normal carbon felt electrode surface.Graphite electrode surface has better electrochemical activation, but must improve effective electrochemical reaction area of graphite electrode, just can be applied in the all-vanadium flow battery.2, bipolar plate material, bipolar plate material should have good electrical conductivity and chemical stability, and high mechanical properties and hypotonicity.Owing to contain a large amount of sulfuric acid in the electrolyte of all-vanadium flow battery, and charging potential is higher, so bipolar plate material also must be corrosion resistant electric conducting material.The bipolar plates of using mainly contains metal double polar plates, graphite bi-polar plate and carbon and moulds composite dual-electrode plates at present.(1) metal bipolar panel material is though noble metal corrosion resistances such as gold, titanium, platinum are better, owing to it costs an arm and a leg, so be not suitable as bipolar plate material.(2) graphite bipolar plate material, graphite material are stable under acid condition, and have good electrical conductivity, and wherein, the pure graphite of atresia also has liquid-proof, can be used as the used for all-vanadium redox flow battery bipolar plate material.But the complicated process of preparation of graphite bi-polar plate is time-consuming and cost is high, therefore is not suitable for being applied to full alum flow battery.(3) carbon is moulded bipolar plate material, in order to reduce the bipolar plates preparation cost, with conductive filler and macromolecule resin is raw material, the carbon that adopts methods such as injection moulding or mold pressing to prepare is moulded bipolar plates and is widely used at present in the all-vanadium flow battery, and wherein the conductive filler of Cai Yonging comprises graphite powder, carbon black, carbon fiber, carbon nano-tube, metal dust etc.; And macromolecule resin normally polyethylene, polypropylene and polyvinyl chloride etc. are moulded the mechanical strength of composite dual-electrode plates and also can be added fiber and strengthen in order to improve carbon.
Also having proposed a kind of employing carbon felt or graphite felt now compresses as combination electrode with graphite cake, mainly be by a slice graphite septum, and the carbon felt or the graphite felt that adopt the assembling thrust to fix on the graphite septum two sides are formed, owing to easily get loose, and contact resistance is arranged, and all directions are inhomogeneous, and also having in use, graphite bi-polar plate increases owing to galvano-cautery causes resistance, even the surface peels off gradually, causes and scurries liquid; When serious, may cause whole stack to lose efficacy.
The utility model content
In order to address the above problem, the purpose of this utility model is a kind of conductance height and all directions resistance is even, the simple integrated combination electrode plate of operation.
For achieving the above object, the technical scheme that the utility model adopted is: integrated combination electrode plate is characterized in that comprising resin plate, at the two-sided conducting base (porous electrode) that is provided with one of resin plate; Described conducting base is carbon felt and/or graphite felt.
More excellent, described resin plate is thermoplastic sheet or thermosetting plate.
After adopting technique scheme, because integrated combination electrode plate, the conducting base that comprises the thermoplastic sheet, is integrally formed with respectively at thermoplastic sheet's front and back, described conducting base is carbon felt and/or graphite felt, it is excessive to have solved in the prior art in the vanadium cell system bipolar plates resistance, the problem that causes inefficiency, realized the conductance height, the conductance of graphite cake no better than, mainly be because with felt (graphite felt or carbon felt) as conducting matrix grain, so the resistance of all directions, and the phenomenon that resistance can occur increasing hardly in the use.In addition, integrated pole dual-pole board is to adopt the mode of injecting resin or hot pressing to finish integral structure, solved in the prior art and realized bipolar plates and the as far as possible little problem of electrode contact resistance by the assembling thrust, for the assembled construction of this integrated back, originally adopt the mode of assembling thrust not need fully, this also is the integrated scheme that is thoroughly solved at electrolyte problem pockety in porous electrode especially.
Description of drawings
Fig. 1 is a cross section structure schematic diagram of the present utility model;
Fig. 2 is an overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As depicted in figs. 1 and 2, integrated combination electrode plate, the conducting base 2 (porous electrode) that comprises resin plate 1, is integrally formed with respectively at resin plate 1 front and back; Described conducting base 2 is carbon felt and/or graphite felt, and described resin plate 1 is thermoplastic sheet or thermosetting plate.
It is excessive to have solved in the prior art in the vanadium cell system bipolar plates resistance, the problem that causes inefficiency, realized the conductance height, the conductance of graphite cake no better than, mainly be because with felt (graphite felt or carbon felt) as conducting matrix grain, so the resistance unanimity of all directions, and the phenomenon that resistance can occur increasing hardly in the use.In addition, integrated pole dual-pole board is to adopt the mode of injecting resin or hot pressing to finish integral structure, solved in the prior art and realized the problem that contact resistance is as far as possible little by the assembling thrust, for the assembled construction of this integrated back, originally adopt the mode of assembling thrust not need fully, this also is the integrated scheme that is thoroughly solved at electrolyte problem pockety in porous electrode especially.
During enforcement,, can obtain the different temperature resistant grades of integrated combination electrode plate, different hardness ranges, different acid and alkali-resistance degree according to the difference of injecting the resin kind.
(1) embodiment of heatproof:
PE (polyethylene)
Temperature resistant grade is-30 ℃ to+90 ℃;
PEEK (polyether-ether-ketone)
Temperature resistant grade is-80 ℃ to+250 ℃.
(2) embodiment of hardness
PE (polyethylene)
Hardness is 90D-95D
PEEK (polyether-ether-ketone)
Hardness is 120R-130R
(3) embodiment of acid and alkali-resistance
PPS (polyphenylene sulfide)
At 200 ℃ with any chemical solvent of interior ability
PEEK (polyether-ether-ketone)
Can only anti-H below 50%
2SO
4
Above-described only is the preferred implementation of the integrated combination electrode plate of the utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (2)
1. integrated combination electrode plate is characterized in that comprising resin plate, at the two-sided conducting base that is provided with one of resin plate; Described conducting base is carbon felt and/or graphite felt.
2. integrated combination electrode plate according to claim 1 is characterized in that described resin plate is thermoplastic sheet or thermosetting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201145565U CN202004086U (en) | 2011-04-15 | 2011-04-15 | Integral composite electrode plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201145565U CN202004086U (en) | 2011-04-15 | 2011-04-15 | Integral composite electrode plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004086U true CN202004086U (en) | 2011-10-05 |
Family
ID=44706813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201145565U Expired - Fee Related CN202004086U (en) | 2011-04-15 | 2011-04-15 | Integral composite electrode plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004086U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361091A (en) * | 2011-10-25 | 2012-02-22 | 中国东方电气集团有限公司 | Integrated electrode collector plate, manufacturing method thereof and flow battery comprising same |
| CN102569824A (en) * | 2011-12-30 | 2012-07-11 | 黄权波 | Bipolar plate of integrated composite electrode, and manufacturing method and application thereof |
| CN102738479A (en) * | 2011-04-15 | 2012-10-17 | 云廷志 | Integrated composite plate electrode |
| CN103022531A (en) * | 2012-12-18 | 2013-04-03 | 中国科学院金属研究所 | Method for preparing bipolar plate of vanadium cell |
| CN106848346A (en) * | 2017-03-06 | 2017-06-13 | 周翔 | Flow battery bipolar plates and preparation method thereof |
| CN110620240A (en) * | 2018-06-19 | 2019-12-27 | 北京普能世纪科技有限公司 | Preparation method of integrated electrode and vanadium redox flow battery |
| CN110875483A (en) * | 2018-09-04 | 2020-03-10 | 大连融科储能装备有限公司 | Integrated electrode-bipolar plate structure and preparation method |
-
2011
- 2011-04-15 CN CN2011201145565U patent/CN202004086U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738479A (en) * | 2011-04-15 | 2012-10-17 | 云廷志 | Integrated composite plate electrode |
| CN102361091A (en) * | 2011-10-25 | 2012-02-22 | 中国东方电气集团有限公司 | Integrated electrode collector plate, manufacturing method thereof and flow battery comprising same |
| CN102569824A (en) * | 2011-12-30 | 2012-07-11 | 黄权波 | Bipolar plate of integrated composite electrode, and manufacturing method and application thereof |
| CN103022531A (en) * | 2012-12-18 | 2013-04-03 | 中国科学院金属研究所 | Method for preparing bipolar plate of vanadium cell |
| CN106848346A (en) * | 2017-03-06 | 2017-06-13 | 周翔 | Flow battery bipolar plates and preparation method thereof |
| CN106848346B (en) * | 2017-03-06 | 2019-07-26 | 昆山知氢信息科技有限公司 | Flow battery bipolar plates and preparation method thereof |
| CN110620240A (en) * | 2018-06-19 | 2019-12-27 | 北京普能世纪科技有限公司 | Preparation method of integrated electrode and vanadium redox flow battery |
| CN110875483A (en) * | 2018-09-04 | 2020-03-10 | 大连融科储能装备有限公司 | Integrated electrode-bipolar plate structure and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100483812C (en) | Integrated pole dual-pole board for oxidation deoxidization liquid energy-storing battery and its preparation | |
| CN202004086U (en) | Integral composite electrode plate | |
| US9269983B2 (en) | Flow battery | |
| CN101308924B (en) | Flexibility enhanced bipolar plate for liquid energy-storing battery and manufacture thereof | |
| CN101719556B (en) | Pile structure of redox flow battery | |
| CN101593841B (en) | Redox flow battery and redox flow battery pack | |
| CN102867978B (en) | Flow energy storage battery structure | |
| CN103178283B (en) | Hydrogen-bromine energy storage battery structure | |
| Hsieh et al. | Measurement of local current density of all-vanadium redox flow batteries | |
| Pan et al. | Preliminary study of alkaline single flowing Zn–O2 battery | |
| CN102569824A (en) | Bipolar plate of integrated composite electrode, and manufacturing method and application thereof | |
| CN102569833A (en) | Bipolar plate of redox flow battery | |
| CN103633330B (en) | A kind of flow battery combination electrode and liquid flow energy storage battery | |
| CN102738475A (en) | Manufacturing method of integrated combined electrode | |
| US8692517B2 (en) | Non-diffusion liquid energy storage device | |
| CN106450405B (en) | Flow cell pile structure | |
| CN106532093A (en) | Quinone metal redox couple flow cell system | |
| CN111293340A (en) | Neutral organic redox flow battery | |
| CN102738479A (en) | Integrated composite plate electrode | |
| CN108390076A (en) | A kind of lead flow battery | |
| CN202384431U (en) | Integrated combined electrode double-pole plate | |
| CN202474081U (en) | Tubular solid oxide fuel battery pack with high space utilization ratio | |
| CN100468837C (en) | Method for preparing porous carbon radical electrode of sodium polysulfate / bromine energy storage cell | |
| CN201210498Y (en) | Air cell connection structure | |
| CN1893162B (en) | Liquid accumulator cell with double functions of accumulating and electrochemical synthesizing |
Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20170415 |