CN104409740A - Novel bipolar plate for vanadium battery and preparation method of novel bipolar plate - Google Patents
Novel bipolar plate for vanadium battery and preparation method of novel bipolar plate Download PDFInfo
- Publication number
- CN104409740A CN104409740A CN201410714378.8A CN201410714378A CN104409740A CN 104409740 A CN104409740 A CN 104409740A CN 201410714378 A CN201410714378 A CN 201410714378A CN 104409740 A CN104409740 A CN 104409740A
- Authority
- CN
- China
- Prior art keywords
- bipolar plate
- plate
- battery
- vanadium
- conductive
- 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.)
- Granted
Links
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 70
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000003575 carbonaceous material Substances 0.000 claims abstract description 32
- 229920003023 plastic Polymers 0.000 claims abstract description 32
- 239000004033 plastic Substances 0.000 claims abstract description 32
- 239000011231 conductive filler Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000007731 hot pressing Methods 0.000 claims description 50
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 32
- 239000000843 powder Substances 0.000 claims description 30
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 20
- 239000004917 carbon fiber Substances 0.000 claims description 20
- 239000006229 carbon black Substances 0.000 claims description 16
- 229920013716 polyethylene resin Polymers 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 4
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract description 2
- 239000006258 conductive agent Substances 0.000 description 8
- 238000007599 discharging Methods 0.000 description 5
- 239000007772 electrode material Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
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
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8864—Extrusion
-
- 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
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
- H01M4/8673—Electrically conductive fillers
-
- 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
-
- 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
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8694—Bipolar electrodes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the field of the manufacture of vanadium batteries, in particular to a novel bipolar plate for a vanadium battery and a preparation method of the novel bipolar plate and solves the problems of great physical internal resistance, low voltage efficiency, uneven voltage of a single piece and the like of the battery in the prior art. The bipolar plate disclosed by the invention consists of four parts, namely a carbon material, a grid-shaped two-side through-hole resin plate, a conductive filler and a carbon material. The grid-shaped two-side through-hole resin plate and the conductive filler are used as a framework layer to be firstly manufactured into a low conductive plastic plate through a hot-press method. Then, the composite carbon materials on both sides of the low conductive plastic plate are subjected to hot press molding again so as to obtain the novel high conductive bipolar plate for the vanadium battery. According to the working requirements of the vanadium battery, for most of the existing bipolar plates, the process of using multiple steps of mixing or stirring and the like is simplified, the preparation process is simple, and only the production device namely a hot press is adopted to complete processing. The bipolar plate disclosed by the invention has high electric conductivity, the contact resistance between electrodes and the bipolar plate is very little, the physical internal resistance of the vanadium battery can be greatly reduced, the energy capacity of the vanadium battery can be increased, and therefore, the cost of the vanadium battery is reduced.
Description
Technical Field
The invention relates to the field of vanadium battery manufacturing, in particular to a novel bipolar plate for a vanadium battery and a preparation method thereof.
Background
The vanadium battery is called as an all vanadium redox flow battery, and is a novel green battery. The bipolar plate is one of the key components of the all-vanadium redox flow battery, plays a role in connecting the positive electrode and the negative electrode of different monocells and conducting the circuit in the battery, and is required to have good conductivity, high mechanical strength and electrochemical corrosion resistance. At present, bipolar plates for vanadium batteries can be used, which are graphite plates: the cost is high, the processing is difficult, and the size is small; metal plate: the corrosion resistance is not good, and the cost is high; conductive plastic: low cost, poor conductivity and low mechanical strength. The key point of commercialization of the vanadium redox battery is to reduce the resistance of the bipolar plate and the electrode material and the contact resistance between the bipolar plate and the electrode material, because the vanadium redox battery needs to meet the requirements of commercialization and scale, the cost of the battery needs to be further reduced, and the reliability of the battery needs to be further improved, and the core problem is to reduce the internal resistance of the battery, and the resistance of the bipolar plate and the electrode material and the contact resistance between the bipolar plate and the electrode material account for more than 40% of the internal.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a novel bipolar plate for a vanadium redox battery and a preparation method thereof, and solves the problems of overhigh resistivity, overlarge contact resistance and the like of a polymer-carbon material composite bipolar plate in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the novel bipolar plate for the vanadium battery comprises a carbon material, a framework layer and conductive fillers, wherein the framework layer is a low-conductivity plastic plate which is made of latticed through-hole resin plates at two sides and the conductive fillers through a hot pressing method, and the two sides of the low-conductivity plastic plate are compounded with the carbon material through hot pressing to form the bipolar plate for the vanadium battery.
The novel bipolar plate for the vanadium redox battery is characterized in that the carbon material is pure graphite, pure carbon black or carbon fiber powder, resin is not contained, and the thickness is 0.01-2 mm.
The novel bipolar plate for the vanadium redox battery is characterized in that the mass ratio of the latticed through hole resin plates on two sides to the conductive filler is (1: 1) - (1: 10).
The novel bipolar plate for the vanadium redox battery is characterized in that the latticed through hole resin plates on two sides are made of one of polyethylene resin, polypropylene resin, polyvinyl chloride resin, acrylic resin and acrylonitrile-butadiene-styrene copolymer.
The novel bipolar plate for the vanadium redox battery is prepared by injection molding or machining through hole resin plates on two sides of a latticed structure.
The preparation method of the bipolar plate for the novel vanadium redox battery comprises the following specific steps:
1) putting the latticed through-hole resin plates on two sides into a mold, adding conductive fillers into the through-hole resin plates, and hot-pressing to obtain a low-conductivity plastic plate serving as a framework layer; the hot pressing temperature is 100-300 ℃, the hot pressing time is 5-200 min, and the hot pressing pressure is 0.1-25 MPa;
2) putting a carbon material into the bottom layer of the mold, adding a low-conductivity plastic plate, adding the carbon material into the low-conductivity plastic plate, and hot-pressing to obtain the bipolar plate for the vanadium battery; the hot pressing temperature is 100-300 ℃, the hot pressing time is 5-200 min, and the hot pressing pressure is 0.1-25 MPa.
According to the preparation method of the bipolar plate for the novel vanadium redox battery, the conductive filler is carbon fiber powder; or the conductive filler takes carbon fiber as a main agent and conductive carbon black as an auxiliary agent; when the carbon fiber powder and the conductive carbon black are selected, the mass ratio of the carbon fiber powder to the conductive carbon black is (1: 1) - (1: 10); the particle size of the conductive carbon black is 10-500 μm, and the particle size of the carbon fiber powder is 10-200 μm.
The design idea of the invention is as follows:
the bipolar plate comprises four parts, namely a carbon material, a latticed through hole resin plate on two sides, a conductive filler and a carbon material, wherein the latticed through hole resin plate on two sides and the conductive filler are used as framework layers to be manufactured into a low-conductivity plastic plate firstly through a hot pressing method. And then carrying out hot press molding again on the composite carbon materials on the two sides of the low-conductivity plastic plate to obtain the novel high-conductivity bipolar plate for the vanadium battery. According to the working requirements of the vanadium battery, the invention simplifies the multi-step processes of mixing or stirring and the like mostly used by the bipolar plate at present, the preparation process is simple, and the production equipment can finish the processing only by a hot press.
The invention has the advantages and beneficial effects that:
1. the preparation method of the novel bipolar plate for the vanadium redox battery is characterized in that the resin plate and the conductive filler are directly hot-pressed to be used as a framework, and the two sides of the framework are connected with the composite carbon material to be manufactured into a whole, so that the preparation process is simple.
2. The resistivity of the novel bipolar plate can reach 0.03-0.1 omega-cm, and the consistency requirement of the vanadium battery material is ensured. The novel bipolar plate consists of four parts, namely a carbon material, a latticed through hole resin plate on two sides, a conductive filler and a carbon material, and the addition of the carbon material greatly reduces the contact resistance between the bipolar plate and an electrode and improves the voltage efficiency of the battery. Thereby reducing the cost of the vanadium battery and ensuring the reliability of the vanadium battery.
Drawings
Fig. 1(a) - (b) are schematic structural diagrams of bipolar plates for vanadium redox batteries. Wherein, 1 carbon material, 2 latticed through hole resin plates on two sides and 3 carbon material.
Detailed Description
As shown in fig. 1(a) - (b), the bipolar plate for the vanadium redox battery comprises a carbon material 1, a framework layer and a carbon material 3, wherein the framework layer is composed of a latticed through-hole resin plate 2 at two sides and a conductive filler, the carbon material 1 and the carbon material 3 are respectively arranged at two sides of the framework layer, and the carbon material 1, the carbon material 3 and the framework layer are compounded by hot pressing to form the novel bipolar plate for the vanadium redox battery. Wherein,
the latticed through-hole resin plates 2 on two sides can be prepared by injection molding or machining, and the resin plates can be made of one of polyethylene resin (PE), polypropylene resin (PP), polyvinyl chloride resin (PVC), acrylic resin powder (PA, nylon) and acrylonitrile-butadiene-styrene copolymer (ABS). The mass ratio of the latticed through-hole resin plates 2 on both sides to the conductive filler is (1: 1) to (1: 10), and the preferred mass ratio is (1: 2) to (1: 5). The carbon material is pure graphite, pure carbon black or carbon fiber powder, does not contain resin, and has a thickness of 0.01-2 mm, preferably 0.02-1.5 mm.
The preparation method of the bipolar plate for the vanadium redox battery comprises the following specific steps:
1) and putting the latticed through-hole resin plates 2 at two sides into the bottom layer of the mold, adding the conductive filler into the holes (grids), and performing hot pressing to obtain the low-conductivity plastic plate serving as the framework layer. The hot pressing temperature is 100-300 ℃ (preferably 150-200 ℃), the hot pressing time is 5-200 min (preferably 10-30 min), and the hot pressing pressure is 0.1-25 MPa (preferably 1-20 MPa).
Wherein the conductive filler is carbon fiber powder; or the conductive filler takes carbon fiber powder as a main agent and conductive carbon black as an auxiliary agent; when the carbon fiber powder and the conductive carbon black are selected, the mass ratio of the carbon fiber powder to the conductive carbon black is (1: 1) to (1: 10), and the preferred mass ratio is (1: 2) to (1: 5). The particle size of the conductive carbon black is 10-500 μm, and the particle size of the carbon fiber powder is 10-200 μm.
2) Putting a carbon material into the bottom layer of the mold, adding a low-conductivity plastic plate, adding a layer of carbon material, and performing hot pressing to obtain a bipolar plate for the vanadium battery; the hot pressing temperature is 100-300 ℃ (preferably 150-200 ℃), the hot pressing time is 5-200 min (preferably 10-30 min), and the hot pressing pressure is 0.1-25 MPa (preferably 1-20 MPa). The resistivity of the bipolar plate for the vanadium redox battery can reach 0.03-0.1 omega-cm, the bipolar plate is in good contact with an electrode, the resistance of the vanadium redox battery can be reduced, and the performance of the vanadium redox battery is improved.
The present invention is described in detail below by way of examples, which are intended to illustrate specific embodiments of the present invention.
Example 1
Firstly, taking a polyethylene resin Plate (PE) (specification: 300mm in length, 300mm in width and 1mm in thickness), firstly putting a polyethylene resin plate with through holes at two sides in a grid shape into the bottom layer of a mould, then selecting 50g of conductive agent carbon fiber powder and 100g of carbon black powder to be added into the holes (grid), closing the mould, wherein the hot pressing temperature is 180 ℃, the hot pressing time is 20min, and the pressure is 5MPa to obtain a framework layer low-conductivity plastic plate, then selecting 1 mm-thickness pure graphite powder to be firstly put into the bottom layer of the mould, then putting a low-conductivity plastic plate, putting 1 mm-thickness pure graphite powder on the conductive plastic plate, closing the mould, wherein the hot pressing temperature is 180 ℃, the hot pressing time is 20min, and the pressure is 15MPa to obtain the novel bipolar plate for the vanadium battery.
In this embodiment, the technical parameters and performance indexes of the bipolar plate for the vanadium redox battery are as follows:
the volume resistivity of the novel bipolar plate for the vanadium redox battery is as follows: 0.04 omega cm. As a bipolar plate for a vanadium cell, the thickness of the bipolar plate is 80mA/cm2Under the charging and discharging conditions: the coulombic efficiency is 97%, the voltage efficiency is 85%, and the energy efficiency is 83%.
Example 2
Firstly taking a polypropylene resin plate (PP) (specification: 300mm in length, 300mm in width and 1mm in thickness), firstly putting a polypropylene resin plate with through holes on two sides in a grid shape into the bottom layer of a mould, then selecting 50g of conductive agent carbon fiber powder and 100g of carbon black powder to be added into the holes, closing the mould, wherein the hot pressing temperature is 180 ℃, the hot pressing time is 20min, and the pressure is 10MPa to obtain a framework layer low-conductivity plastic plate, then selecting 2 mm-thickness pure carbon black to be firstly put into the bottom layer of the mould, then putting a low-conductivity plastic plate, putting 2 mm-thickness pure carbon black on the conductive plastic plate, closing the mould, wherein the hot pressing temperature is 180 ℃, the hot pressing time is 20min, and the pressure is 10MPa to obtain the novel bipolar plate for the vanadium battery.
In this embodiment, the technical parameters and performance indexes of the bipolar plate for the vanadium redox battery are as follows:
the volume resistivity of the novel bipolar plate for the vanadium redox battery is as follows: 0.04 omega cm. As a bipolar plate for a vanadium cell, the thickness of the bipolar plate is 80mA/cm2Under the charging and discharging conditions: coulombic efficiency 95%, voltage efficiency 86%, and energy efficiency 82%.
Example 3
Firstly, taking a polyethylene resin Plate (PE) (specification: 300mm in length, 300mm in width and 1mm in thickness), firstly putting a latticed polyethylene resin plate with through holes on two sides into the bottom layer of a mould, then selecting 50g of conductive agent carbon black powder, adding the conductive agent carbon black powder into the holes, closing the mould, wherein the hot pressing temperature is 170 ℃, the hot pressing time is 30min, and the pressure is 3MPa to obtain a framework layer low-conductivity plastic plate, then selecting 1.5 mm-thickness pure fiber powder, putting the pure fiber powder into the bottom layer of the mould, then putting the low-conductivity plastic plate, putting the 1.5 mm-thickness pure fiber powder on the conductive plastic plate, closing the mould, wherein the hot pressing temperature is 180 ℃, the hot pressing time is 10min, and the pressure is 20MPa to obtain the novel bipolar plate.
In this embodiment, the technical parameters and performance indexes of the bipolar plate for the vanadium redox battery are as follows:
the volume resistivity of the novel bipolar plate for the vanadium redox battery is as follows: 0.04 omega cm. As a bipolar plate for a vanadium cell, the thickness of the bipolar plate is 80mA/cm2Under the charging and discharging conditions: coulombic efficiency 97%, voltage efficiency 87%, and energy efficiency 84%.
Example 4
Firstly, taking a polyethylene resin plate (PP) (specification: 300mm in length, 300mm in width and 1mm in thickness), firstly putting a latticed polyethylene resin plate with through holes on two sides into the bottom layer of a mould, then selecting 50g of conductive agent carbon black powder, adding the conductive agent carbon black powder into the holes, closing the mould, wherein the hot-pressing temperature is 190 ℃, the hot-pressing time is 30min, and the pressure is 10MPa to obtain a framework layer low-conductivity plastic plate, then selecting 0.5 mm-thickness pure graphite powder, putting the pure graphite powder into the bottom layer of the mould, then putting the low-conductivity plastic plate, putting the 0.5 mm-thickness pure graphite powder on the conductive plastic plate, closing the mould, wherein the hot-pressing temperature is 190 ℃, the hot-pressing time is 15min, and the pressure is 12MPa to obtain.
In this embodiment, the technical parameters and performance indexes of the bipolar plate for the vanadium redox battery are as follows:
the volume resistivity of the novel bipolar plate for the vanadium redox battery is as follows: 0.04 omega cm. As a bipolar plate for a vanadium cell, the thickness of the bipolar plate is 80mA/cm2Under the charging and discharging conditions: coulombic efficiency 95%, voltage efficiency 89%, and energy efficiency 85%.
Example 5
Firstly, taking a polyethylene resin Plate (PE) (specification: 300mm in length, 300mm in width and 1mm in thickness), firstly putting a latticed polyethylene resin plate with through holes on two sides into a bottom layer of a mould, then selecting 60g of conductive agent carbon black powder, adding the conductive agent carbon black powder into the holes, closing the mould, wherein the hot pressing temperature is 175 ℃, the hot pressing time is 25min, and the pressure is 2MPa to obtain a framework layer low-conductivity plastic plate, then selecting 1mm thick carbon black, putting the 1mm thick carbon black into the bottom layer of the mould, then putting a low-conductivity plastic plate, putting the 1mm thick carbon black on the conductive plastic plate, closing the mould, wherein the hot pressing temperature is 175 ℃, the hot pressing time is 30min, and the pressure is 10MPa to obtain the novel bipolar.
In this embodiment, the technical parameters and performance indexes of the bipolar plate for the vanadium redox battery are as follows:
the volume resistivity of the novel bipolar plate for the vanadium redox battery is as follows: 0.04 omega cm. As a bipolar plate for a vanadium cell, the thickness of the bipolar plate is 80mA/cm2Under the charging and discharging conditions: coulombic efficiency 96%, voltage efficiency 88%, energy efficiency 84%.
The embodiment result shows that the bipolar plate has high conductivity and very small contact resistance with the electrode, can greatly reduce the physical internal resistance of the vanadium battery, and improve the energy power of the vanadium battery, thereby reducing the cost of the vanadium battery and solving the problems of large physical internal resistance, low voltage efficiency, uneven single-chip voltage and the like of the battery in the prior art.
Claims (7)
1. The novel bipolar plate for the vanadium battery is characterized by comprising a carbon material, a framework layer and conductive fillers, wherein the framework layer is a low-conductive plastic plate which is made of a latticed through-hole resin plate with two sides and the conductive fillers through a hot pressing method, and the two sides of the low-conductive plastic plate are compounded with the carbon material through hot pressing to form the bipolar plate for the vanadium battery.
2. The novel bipolar plate for the vanadium redox battery as claimed in claim 1, wherein the carbon material is pure graphite, pure carbon black or carbon fiber powder, does not contain resin, and has a thickness of 0.01 to 2 mm.
3. The novel bipolar plate for a vanadium redox battery as claimed in claim 1, wherein the ratio by mass of the latticed through-hole resin plate on both sides and the conductive filler is (1: 1) to (1: 10).
4. The novel bipolar plate for a vanadium redox battery as claimed in claim 1, wherein the latticed through-hole resin plates at both sides are made of one of polyethylene resin, polypropylene resin, polyvinyl chloride resin, acrylic resin, acrylonitrile-butadiene-styrene copolymer.
5. The novel bipolar plate for a vanadium battery as claimed in claim 1, wherein the latticed both-side through-hole resin plate is prepared by injection molding or machining.
6. The preparation method of the novel bipolar plate for the vanadium redox battery as claimed in claim 1 is characterized by comprising the following specific steps:
1) putting the latticed through-hole resin plates on two sides into a mold, adding conductive fillers into the through-hole resin plates, and hot-pressing to obtain a low-conductivity plastic plate serving as a framework layer; the hot pressing temperature is 100-300 ℃, the hot pressing time is 5-200 min, and the hot pressing pressure is 0.1-25 MPa;
2) putting a carbon material into the bottom layer of the mold, adding a low-conductivity plastic plate, adding the carbon material into the low-conductivity plastic plate, and hot-pressing to obtain the bipolar plate for the vanadium battery; the hot pressing temperature is 100-300 ℃, the hot pressing time is 5-200 min, and the hot pressing pressure is 0.1-25 MPa.
7. The method for preparing a bipolar plate for a novel vanadium battery as claimed in claim 6, wherein the conductive filler is carbon fiber powder; or the conductive filler takes carbon fiber as a main agent and conductive carbon black as an auxiliary agent; when the carbon fiber powder and the conductive carbon black are selected, the mass ratio of the carbon fiber powder to the conductive carbon black is (1: 1) - (1: 10); the particle size of the conductive carbon black is 10-500 μm, and the particle size of the carbon fiber powder is 10-200 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714378.8A CN104409740B (en) | 2014-11-28 | 2014-11-28 | A kind of Novel vanadium battery bipolar plates and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714378.8A CN104409740B (en) | 2014-11-28 | 2014-11-28 | A kind of Novel vanadium battery bipolar plates and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104409740A true CN104409740A (en) | 2015-03-11 |
| CN104409740B CN104409740B (en) | 2016-08-03 |
Family
ID=52647350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714378.8A Active CN104409740B (en) | 2014-11-28 | 2014-11-28 | A kind of Novel vanadium battery bipolar plates and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104409740B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099121A (en) * | 2016-07-21 | 2016-11-09 | 中国科学院上海高等研究院 | Bipolar plates and its preparation method and application |
| CN106299387A (en) * | 2016-10-13 | 2017-01-04 | 福州大学 | Utilize the method that straw prepares Proton Exchange Membrane Fuel Cells gas-diffusion electrode |
| CN107039665A (en) * | 2017-03-06 | 2017-08-11 | 周翔 | A kind of preparation method of composite dual-electrode plates used for all-vanadium redox flow battery |
| CN107819136A (en) * | 2016-09-12 | 2018-03-20 | 中国科学院金属研究所 | A kind of stepped construction bipolar plates and preparation method thereof |
| CN110265685A (en) * | 2018-03-12 | 2019-09-20 | 中国电力科学研究院有限公司 | A kind of modified dual-electrode plates preparation method used for all-vanadium redox flow battery |
| CN113782843A (en) * | 2021-09-07 | 2021-12-10 | 北京阳光鸿志电气工程技术有限公司 | Preparation method of solid vanadium battery and obtained solid vanadium battery |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325252A (en) * | 2007-06-15 | 2008-12-17 | 清华大学 | Double pole plate for fluid flow battery |
| CN101814605A (en) * | 2010-03-19 | 2010-08-25 | 清华大学 | Preparation method of fluororesin-containing conductive plastic bi-polar plate |
| CN102738473A (en) * | 2012-07-17 | 2012-10-17 | 中国东方电气集团有限公司 | Composite porous electrode, single cell comprising composite porous electrode, cell stack and preparation method of composite porous electrode |
| CN102738479A (en) * | 2011-04-15 | 2012-10-17 | 云廷志 | Integrated composite plate electrode |
| CN102891324A (en) * | 2012-09-25 | 2013-01-23 | 中国科学院金属研究所 | Bipolar plate for vanadium battery and preparation method for bipolar plate |
| 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 |
| CN103545539A (en) * | 2012-07-12 | 2014-01-29 | 青岛高泰新材料有限公司 | Three-dimensional netted graphite foam or netted glassy carbon bipolar plate of all-vanadium redox flow battery |
-
2014
- 2014-11-28 CN CN201410714378.8A patent/CN104409740B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325252A (en) * | 2007-06-15 | 2008-12-17 | 清华大学 | Double pole plate for fluid flow battery |
| CN101814605A (en) * | 2010-03-19 | 2010-08-25 | 清华大学 | Preparation method of fluororesin-containing conductive plastic bi-polar plate |
| CN102738479A (en) * | 2011-04-15 | 2012-10-17 | 云廷志 | Integrated composite plate electrode |
| CN103545539A (en) * | 2012-07-12 | 2014-01-29 | 青岛高泰新材料有限公司 | Three-dimensional netted graphite foam or netted glassy carbon bipolar plate of all-vanadium redox flow battery |
| CN102738473A (en) * | 2012-07-17 | 2012-10-17 | 中国东方电气集团有限公司 | Composite porous electrode, single cell comprising composite porous electrode, cell stack and preparation method of composite porous electrode |
| CN102891324A (en) * | 2012-09-25 | 2013-01-23 | 中国科学院金属研究所 | Bipolar plate for vanadium battery and preparation method for bipolar plate |
| 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 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099121A (en) * | 2016-07-21 | 2016-11-09 | 中国科学院上海高等研究院 | Bipolar plates and its preparation method and application |
| CN107819136A (en) * | 2016-09-12 | 2018-03-20 | 中国科学院金属研究所 | A kind of stepped construction bipolar plates and preparation method thereof |
| CN107819136B (en) * | 2016-09-12 | 2021-03-26 | 中国科学院金属研究所 | Laminated structure bipolar plate and preparation method thereof |
| CN106299387A (en) * | 2016-10-13 | 2017-01-04 | 福州大学 | Utilize the method that straw prepares Proton Exchange Membrane Fuel Cells gas-diffusion electrode |
| CN106299387B (en) * | 2016-10-13 | 2018-11-16 | 福州大学 | The method for preparing Proton Exchange Membrane Fuel Cells gas-diffusion electrode using stalk |
| CN107039665A (en) * | 2017-03-06 | 2017-08-11 | 周翔 | A kind of preparation method of composite dual-electrode plates used for all-vanadium redox flow battery |
| CN110265685A (en) * | 2018-03-12 | 2019-09-20 | 中国电力科学研究院有限公司 | A kind of modified dual-electrode plates preparation method used for all-vanadium redox flow battery |
| CN110265685B (en) * | 2018-03-12 | 2022-03-18 | 中国电力科学研究院有限公司 | Preparation method of modified bipolar plate for all-vanadium redox flow battery |
| CN113782843A (en) * | 2021-09-07 | 2021-12-10 | 北京阳光鸿志电气工程技术有限公司 | Preparation method of solid vanadium battery and obtained solid vanadium battery |
| CN113782843B (en) * | 2021-09-07 | 2024-01-05 | 北京阳光鸿志电气工程技术有限公司 | Preparation method of solid vanadium battery and obtained solid vanadium battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104409740B (en) | 2016-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104409740B (en) | A kind of Novel vanadium battery bipolar plates and preparation method thereof | |
| CN102891324B (en) | Bipolar plate for vanadium battery and preparation method for bipolar plate | |
| CN103022531B (en) | Method for preparing bipolar plate of vanadium cell | |
| CN104466197B (en) | Bipolar plate for vanadium battery and preparation method of bipolar plate | |
| CN102208659A (en) | Manufacturing process and device of bipolar plate for fuel cell | |
| CN103746122A (en) | Preparation method of composite material bipolar plates of novel fuel cells | |
| CN108023104B (en) | Bipolar plate for vanadium battery and preparation method thereof | |
| CN202474092U (en) | Pole piece of high-power lithium-ion battery and battery | |
| CN105529478A (en) | Fuel cell bipolar plate and electric pile constituted by same | |
| CN102643515B (en) | A kind of Low-resistivity composite conductive plate and preparation method thereof | |
| CN103035928B (en) | Integrated electrode for vanadium cell and preparation method thereof | |
| CN102931415A (en) | Lead-acid battery composite plate grid, pole plate and battery | |
| CN114824344B (en) | Graphite-resin composite bipolar plate and preparation method and application thereof | |
| CN109244531A (en) | A kind of high purity copper matrix graphite alkene composite lithium ion cell and preparation method thereof | |
| CN109411779A (en) | A kind of preparation method of vanadium cell soft graphite bipolar plates | |
| KR20150102909A (en) | Preparation method of electrode for redox flow battery comprising the same, and redox flow battery | |
| CN206134813U (en) | Anodal pole piece of lithium ion battery of quick heat conduction | |
| CN108023106B (en) | Bipolar plate for vanadium battery and preparation method thereof | |
| CN109817990B (en) | Unipolar plate for hydrogen fuel cell, preparation method of unipolar plate and hydrogen fuel cell | |
| KR101743924B1 (en) | Carbon fiber felt integrated bipolar plate for batteries and method for manufacturing same | |
| CN207265165U (en) | A kind of bipolar plates with higher-strength | |
| CN2938429Y (en) | Double-plate and fuel cell containing the double-plate | |
| CN112421029B (en) | Graphite negative electrode material capable of being charged and discharged rapidly and preparation method thereof | |
| CN115447215A (en) | Preparation method of conductive sheet, conductive sheet and novel flow battery bipolar plate | |
| CN107887612A (en) | A kind of processing method of graphite bipolar plate of fuel battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |