CN109728319B - Bipolar plate for vanadium battery and continuous processing device and method thereof - Google Patents
Bipolar plate for vanadium battery and continuous processing device and method thereof Download PDFInfo
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- CN109728319B CN109728319B CN201711042560.3A CN201711042560A CN109728319B CN 109728319 B CN109728319 B CN 109728319B CN 201711042560 A CN201711042560 A CN 201711042560A CN 109728319 B CN109728319 B CN 109728319B
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- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 34
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 65
- 239000011248 coating agent Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000007493 shaping process Methods 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 9
- 239000003085 diluting agent Substances 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 7
- 239000011231 conductive filler Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010924 continuous production Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006258 conductive agent Substances 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
- 238000007599 discharging Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention relates to the field of vanadium battery manufacturing, in particular to a bipolar plate for a vanadium battery and a continuous processing device and method thereof. The device is provided with a three-roller calender, a positioning roller, a heating and heat-insulating device and a shaping roller in sequence along the entering direction of a bipolar plate mother plate, wherein the three-roller calender is provided with two coating devices which are respectively positioned at two sides of the bipolar plate mother plate and respectively arranged between an upper roller and a middle roller and between the middle roller and a lower roller. The method is that the bipolar plate mother board passes through a three-roller calender and a coating device arranged on the three-roller calender, directly coats conductive slurry on two sides of the bipolar plate, and is pressed and molded by a shaping roller after passing through a heating and heat-preserving device. The bipolar plate surface of the invention is coated with the high conductive coating, the conductivity is good, and the cost is low. By adopting the coating process, the continuous production can be realized, the surface resistance of the bipolar plate and the contact resistance between the bipolar plate and the electrodes can be greatly reduced, and the energy efficiency of the battery is improved.
Description
Technical Field
The invention relates to the field of vanadium battery manufacturing, in particular to a bipolar plate for a vanadium battery and a continuous processing device and method thereof.
Background
The vanadium battery is an ideal energy storage battery for solving the problem of high-capacity energy storage of renewable energy sources such as wind energy, solar energy and the like. The bipolar plate is one of the most important materials of the vanadium redox battery, is important to the cost of the vanadium redox battery, and the strength and the conductivity of the bipolar plate influence the performance and the service life of the vanadium redox battery. The preparation technology of the bipolar plate which is compatible in three aspects of low cost, high strength and high conductivity becomes one of the bottlenecks which restrict the industrialization of the vanadium battery.
The key material with low cost and high performance is one of the bottlenecks restricting the commercial application of the vanadium battery, such as bipolar plates, graphite has good conductivity but poor mechanical strength, and large-area processing (maximum 800mm x 800mm) cannot be carried out. The common conductive plastic bipolar plate has relatively poor conductivity and mechanical strength, can only meet the short-term battery service life, and the high addition of the conductive agent makes the batch preparation (such as the conventional extrusion process) difficult to realize in order to obtain high conductivity. Therefore, on the basis of ensuring the basic performances of high strength and high conductivity, the preparation technology of obtaining the bipolar plate capable of being produced in large scale is very important, and a continuous processing device and a preparation method of the bipolar plate for the vanadium battery are required to be invented.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a bipolar plate for a vanadium cell and a continuous processing device and method thereof, which adopt a coating process, can realize continuous production, reduce the contact resistance between the bipolar plate and electrodes and improve the energy efficiency of the cell.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a bipolar plate for a vanadium battery is a composite structure of a bipolar plate mother plate and conductive coatings on one side or two sides of the bipolar plate mother plate, wherein the conductive coatings are formed by coating conductive slurry on the bipolar plate mother plate; the conductive slurry is a mixture of conductive filler and diluent, and the mass ratio of the conductive filler to the diluent is 1: (3-6) the resistivity is 0.001-100 Ω · cm.
The conductive filler of the bipolar plate for the vanadium redox battery is one of carbon black, graphite, carbon fiber powder and metal powder, and the particle size is 0.005 mm-0.1 mm; the diluent is one of water, ethanol, solvent oil and acetone.
The bipolar plate for the vanadium battery is characterized in that the thickness of a bipolar plate mother plate is 0.3-5.0 mm, and the thickness of a conductive coating on the surface of the bipolar plate mother plate is 0.005-0.10 mm.
The bipolar plate for the vanadium battery is preferably characterized in that the thickness of a mother plate of the bipolar plate is 0.3-2.0 mm, and the thickness of a conductive coating on the surface of the mother plate of the bipolar plate is 0.01-0.03 mm.
The continuous processing device of the bipolar plate for the vanadium battery is sequentially provided with a three-roller calender, a positioning roller, a heating and heat-preserving device, a shaping roller and a winding device along the entering direction of a bipolar plate mother plate, wherein one side of the three-roller calender is provided with a coating device which is positioned on one side or two sides of the bipolar plate mother plate;
when the number of the coating devices is one, the coating devices are positioned above one side of the bipolar plate mother plate and arranged between an upper roller and a middle roller of a three-roller calender; when the number of the coating devices is two, the coating devices are respectively positioned above two sides of the bipolar plate mother plate and are respectively arranged between an upper roller and a middle roller and between the middle roller and a lower roller of the three-roller calender.
The continuous processing device of the bipolar plate for the vanadium redox battery is independently used; or the continuous processing device is arranged at the output ends of the extruder and the machine head device, and the bipolar plate mother plate extruded by the extruder corresponds to the upper roller and the middle roller of the three-roller calender.
According to the continuous processing device of the bipolar plate for the vanadium redox battery, a discharge hole is formed in one side, facing a mother plate of the bipolar plate, of a coating device, conductive slurry is filled in the coating device, and a feed hole is formed in the other side of the coating device.
In the continuous processing device of the bipolar plate for the vanadium battery, the diameters of an upper roller, a middle roller and a lower roller of a three-roller calender are 0.4-1.0 m, and the distance between two adjacent rollers is 0.6-3 mm; the diameter of the positioning roller is 0.4 m-1.0 m; the diameter of the shaping roller is 0.2-1.0 m, and the distance between the two rollers is 0.6-3 mm; the diameter of the feed inlet is 15-45 mm, the gap of the discharge outlet is 1-5 mm, and the width of the coating device is consistent with that of the three-roller calender.
The three-roller calender is operated at normal temperature or heated; the heating and heat-preserving device adopts a tunnel oven, the length of the tunnel oven is 5-10 m, and the temperature range is less than or equal to 300 ℃.
According to the continuous processing method of the bipolar plate for the vanadium battery, a bipolar plate mother board directly coats conductive paint on the two side surfaces of the bipolar plate through a three-roller calender and a coating device arranged on the three-roller calender, and the bipolar plate mother board is pressed and formed by a shaping roller after passing through a heating and heat-preserving device.
The invention has the advantages and beneficial effects that:
1. the bipolar plate surface of the invention is coated with the high-conductivity coating, and has the advantages of good corrosion resistance, good conductivity, small resistance and low cost. The surface of a bipolar plate mother board is coated with a high conductive layer by adopting a coating process, and then is pressed and formed by a setting roller, so that the surface resistance of the bipolar plate can be greatly reduced after coating, the contact resistance between the bipolar plate and an electrode is reduced, and the energy efficiency of a battery is improved.
2. The invention solves the problems of overhigh resistivity, complex processing technology, poor consistency and the like of the traditional polymer-carbon black composite bipolar plate, can continuously prepare the bipolar plate, can be made into any size, and has simple production technology and good consistency.
Drawings
FIG. 1 is a schematic view of a continuous processing apparatus;
fig. 2-3 are schematic views of a coating apparatus. Wherein, fig. 2 is a perspective view; fig. 3 is a front view.
In the figure, 1 extruder and head unit; 2, a three-roller calender; 3 a coating device; 4, positioning rollers; 5 heating and insulating device; 6, a sizing roller; 7, a traction device; 8, a winding device; 9, discharging a material outlet; 10 feed inlets.
Detailed Description
In the specific implementation process, the device can be used independently or can be arranged behind an extruder head of an extruder, the bipolar plate mother board passes through a three-roller calender and a coating device arranged on the three-roller calender, the conductive slurry is directly and uniformly coated on the surfaces of the two sides of the bipolar plate by using a coating technology, the thickness of the coating is controlled, the adhesive force between the bipolar plate mother board and the bipolar plate is enhanced by a heating and heat-insulating device, and finally the bipolar plate mother board is pressed and molded by a sizing roller.
As shown in fig. 1, the continuous processing apparatus of the present invention mainly comprises: the device comprises an extruder and machine head device 1, a three-roller calender 2, a coating device 3, a positioning roller 4, a heating and heat-insulating device 5, a shaping roller 6, a traction device 7, a winding device 8 and the like, and has the following specific structure:
the continuous processing device is sequentially provided with a three-roller calender 2, a positioning roller 4, a heating and heat-insulating device 5, a shaping roller 6 and a winding device 8 along the entering direction of a bipolar plate mother plate, and one side of the three-roller calender 2 is provided with a coating device 3. The two coating devices 3 are respectively positioned above two sides of the bipolar plate mother plate and respectively arranged between the upper roll and the middle roll of the three-roll calender 2 and between the middle roll and the lower roll, and the output ends of the extruder and the machine head device 1 correspond to the upper roll and the middle roll of the three-roll calender 2.
As shown in fig. 1-3, the coating apparatus of the present invention mainly comprises a discharge port 9 and a feed port 10, wherein the coating apparatus is filled with conductive slurry, the discharge port 9 is arranged on one side of the coating apparatus 3 facing the bipolar plate mother plate, and the feed port 10 is arranged on the other side of the coating apparatus 3. Preferably, the diameter of the feed port 10 is 15-45 mm, the gap of the discharge port 9 is 1-5 mm, and the width of the coating device 3 is consistent with that of the three-roll calender 2.
Wherein the diameters of an upper roller, a middle roller and a lower roller of the three-roller calender are 0.4-1.0 m, and the distance between two adjacent rollers is 0.6-3 mm; the diameter of the positioning roller is 0.4 m-1.0 m; the diameter of the shaping roller is 0.2-1.0 m, and the distance between the two rollers is 0.6-3 mm; the diameter of the feed inlet is 15-45 mm, and the gap of the discharge outlet is 1-5 mm.
The embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
In this embodiment, the continuous processing apparatus is as follows: the diameter of the three-roller calender is 0.6m, the distance between the three rollers is 1mm, and the upper side and the lower side of the bipolar plate mother plate are respectively provided with a coating device which is respectively arranged between the upper roller and the middle roller and between the middle roller and the lower roller. The diameter of a feed inlet is 45mm, the gap of a discharge outlet is 3mm, the width of a coating device is 800mm, graphite powder with the particle size of 0.01mm and diluent water (the mass ratio is 1: 5) are added into the feed inlet, the graphite powder and the diluent water are uniformly coated on the surface of a bipolar plate mother plate under the action of gravity, the traction speed is controlled, the graphite powder and the diluent water pass through a 5m tunnel oven (the temperature is controlled at 250 ℃), the diameter is 0.5m, and the distance between two rollers is 0.8 mm. Thus, a bipolar plate having a total thickness of 0.7mm, surface coating thicknesses of 0.05mm on both sides, and a resistivity of 0.1. omega. cm was obtained.
The bipolar plate prepared in this example is assembled into a 10KW vanadium battery, and the charge and discharge performance parameters of the battery are as follows: the coulomb efficiency is 97.5 percent, the voltage efficiency is 86.5 percent, the energy efficiency is 84.3 percent, and compared with the prior carbon-plastic bipolar plate, the voltage efficiency is improved by 5.5 percent.
Example 2
In this embodiment, the continuous processing apparatus is as follows: the diameter of the three-roller calender is 0.5m, the distance between the three rollers is 3mm, and the upper side and the lower side of the bipolar plate mother plate are respectively provided with a coating device which is respectively arranged between the upper roller and the middle roller and between the middle roller and the lower roller. The diameter of a feed inlet is 25mm, the gap of a discharge outlet is 2mm, the width of a coating device is 700mm, carbon fiber powder with the particle size of 0.008mm and a diluent acetone (the mass ratio is 1: 3) are added into the feed inlet, the carbon fiber powder and the diluent acetone are uniformly coated on the surface of a bipolar plate mother plate under the action of gravity, the traction speed is controlled, the carbon fiber powder and the diluent acetone pass through a tunnel oven with the temperature of 8m (the temperature is controlled at 270 ℃), the diameter is 0.6m, and the distance between two rollers is 1.0 mm. Thus, a bipolar plate having a total thickness of 0.8mm, surface coating thicknesses of 0.10mm on both sides, and a resistivity of 0.05. omega. cm was obtained.
The bipolar plate prepared in this example is assembled into a 10KW vanadium battery, and the charge and discharge performance parameters of the battery are as follows: the coulomb efficiency is 97.2%, the voltage efficiency is 85.5%, the energy efficiency is 83.1%, and compared with the existing carbon-plastic bipolar plate, the voltage efficiency is improved by 4.5%.
Example 3
In this embodiment, the continuous processing apparatus is as follows: the diameter of the three-roller calender is 0.7m, the distance between the three rollers is 2mm, and the upper side of the bipolar plate mother plate is provided with a coating device which is arranged between the upper roller and the middle roller and between the middle roller and the lower roller. The diameter of a feed inlet is 35mm, the gap of a discharge outlet is 2mm, the width of a coating device is 600mm, graphite powder with the particle size of 0.005mm and diluent absolute ethyl alcohol (the mass ratio is 1: 4) are added into the feed inlet, the graphite powder and the diluent absolute ethyl alcohol are uniformly coated on the surface of a bipolar plate mother plate under the action of gravity, the traction speed is controlled, the graphite powder and the diluent absolute ethyl alcohol pass through a tunnel oven with the temperature of 10m (the temperature is controlled to be 200 ℃), the graphite powder and the diluent absolute ethyl alcohol pass through a shaping roller, the diameter is 0.4m, and the distance between the two rollers is 0.6 mm. Thus, a bipolar plate having a total thickness of 0.50mm, surface coating thicknesses of 0.05mm on both sides, and a resistivity of 0.09. omega. cm was obtained.
The bipolar plate prepared in this example is assembled into a 10KW vanadium battery, and the charge and discharge performance parameters of the battery are as follows: the coulomb efficiency is 97.0 percent, the voltage efficiency is 86.0 percent, the energy efficiency is 83.4 percent, and compared with the prior carbon-plastic bipolar plate, the voltage efficiency is improved by 5.0 percent.
Example 4
In this embodiment, the continuous processing apparatus is as follows: the diameter of the three-roller calender is 0.5m, the distance between the three rollers is 1.5mm, and the upper side and the lower side of the bipolar plate mother plate are respectively provided with a coating device which is respectively arranged between the upper roller and the middle roller and between the middle roller and the lower roller. The diameter of a feed inlet is 30mm, the gap of a discharge outlet is 2mm, the width of a coating device is 500mm, carbon powder with the particle size of 0.015mm and diluent water (the mass ratio is 1: 5) are added into the feed inlet, the carbon powder and the diluent water are uniformly coated on the surface of a bipolar plate mother plate under the action of gravity, the traction speed is controlled, the carbon powder and the diluent water pass through a 9m tunnel oven (the temperature is controlled at 230 ℃), the diameter is 0.8m, and the distance between two rollers is 0.9 mm. Thus, a bipolar plate having a total thickness of 0.86mm, surface coating thicknesses of 0.02mm on both sides, and a resistivity of 0.15. omega. cm was obtained.
The bipolar plate prepared in this example is assembled into a 10KW vanadium battery, and the charge and discharge performance parameters of the battery are as follows: the coulomb efficiency is 96.9%, the voltage efficiency is 85.8%, the energy efficiency is 83.1%, and compared with the existing carbon-plastic bipolar plate, the voltage efficiency is improved by 4.8%.
Claims (7)
1. A continuous processing device of bipolar plates for vanadium batteries is characterized in that the bipolar plates are of a bipolar plate mother board and a conductive coating composite structure on one side or two sides of the bipolar plate mother board, and the conductive coating is formed by coating conductive slurry on the bipolar plate mother board; the conductive slurry is a mixture of conductive filler and diluent, and the mass ratio of the conductive filler to the diluent is 1: (3-6);
the continuous processing device is sequentially provided with a three-roller calender, a positioning roller, a heating and heat-preserving device, a shaping roller and a winding device along the entering direction of the bipolar plate mother plate, one side of the three-roller calender is provided with a coating device, and the coating device is positioned on one side or two sides of the bipolar plate mother plate;
when the number of the coating devices is one, the coating devices are positioned above one side of the bipolar plate mother plate and arranged between an upper roller and a middle roller of a three-roller calender; when the number of the coating devices is two, the coating devices are respectively positioned above two sides of the bipolar plate mother plate and are respectively arranged between an upper roller and a middle roller and between the middle roller and a lower roller of the three-roller calender;
the continuous processing device is used independently; or the continuous processing device is arranged at the output ends of the extruder and the machine head device, and the bipolar plate mother plate extruded by the extruder corresponds to the upper roller and the middle roller of the three-roller calender;
the coating device is provided with a discharge port at one side facing the bipolar plate motherboard, conductive slurry is filled in the coating device, and a feed port is arranged at the other side of the coating device.
2. The continuous processing device of the bipolar plate for the vanadium redox battery as claimed in claim 1, wherein the diameters of the upper roll, the middle roll and the lower roll of the three-roll calender are 0.4-1.0 m, and the distance between two adjacent rolls is 0.6-3 mm; the diameter of the positioning roller is 0.4 m-1.0 m; the diameter of the shaping roller is 0.2-1.0 m, and the distance between the two rollers is 0.6-3 mm; the diameter of the feed inlet is 15-45 mm, the gap of the discharge outlet is 1-5 mm, and the width of the coating device is consistent with that of the three-roller calender.
3. The continuous processing device of the bipolar plate for the vanadium redox battery as claimed in claim 1, wherein the three-roll calender is operated at normal temperature or heated; the heating and heat-preserving device adopts a tunnel oven, the length of the tunnel oven is 5-10 m, and the temperature range is less than or equal to 300 ℃.
4. The continuous processing device of the bipolar plate for the vanadium redox battery as claimed in claim 1, wherein the conductive filler is one of carbon black, graphite, carbon fiber powder and metal powder, and the particle size is 0.005mm to 0.1 mm; the diluent is one of water, ethanol, solvent oil and acetone.
5. The continuous processing device of the bipolar plate for the vanadium redox battery as claimed in claim 1, wherein the thickness of the mother plate of the bipolar plate is 0.3 to 5.0mm, and the thickness of the conductive coating on the surface of the mother plate of the bipolar plate is 0.005 to 0.10 mm.
6. The continuous processing device of the bipolar plate for the vanadium redox battery as claimed in claim 1, wherein the thickness of the mother plate of the bipolar plate is 0.3-2.0 mm, and the thickness of the conductive coating on the surface of the mother plate of the bipolar plate is 0.01-0.03 mm.
7. A method for continuously processing a bipolar plate for a vanadium battery by using the device as claimed in claim 1, wherein a bipolar plate mother plate passes through a three-roll calender and a coating device arranged on the three-roll calender, directly coats conductive coatings on the two side surfaces of the bipolar plate, passes through a heating and heat-preserving device, and is pressed and molded by a shaping roll.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711042560.3A CN109728319B (en) | 2017-10-30 | 2017-10-30 | Bipolar plate for vanadium battery and continuous processing device and method thereof |
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| CN201711042560.3A CN109728319B (en) | 2017-10-30 | 2017-10-30 | Bipolar plate for vanadium battery and continuous processing device and method thereof |
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| CN109728319B true CN109728319B (en) | 2021-10-22 |
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| CN111370718A (en) * | 2020-03-19 | 2020-07-03 | 辽宁科京新材料科技有限公司 | Continuous processing device and method for bipolar plate for flow battery |
| CN112238019B (en) * | 2020-12-17 | 2021-02-19 | 宁波市捷丰塑业有限公司 | Extrusion system for flow battery bipolar plate production and extrusion method thereof |
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| CN103633336A (en) * | 2012-08-29 | 2014-03-12 | 中国科学院大连化学物理研究所 | Bipolar plate for liquid flow energy storage battery and preparation method |
| CN104466197A (en) * | 2014-11-28 | 2015-03-25 | 中国科学院金属研究所 | Bipolar plate for vanadium battery and preparation method of bipolar plate |
| CN104638282A (en) * | 2015-02-04 | 2015-05-20 | 大连融科储能技术发展有限公司 | Method, system and method for processing bipolar plate of low-contact resistor and bipolar plate of low-contact resistor |
| 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 |
-
2017
- 2017-10-30 CN CN201711042560.3A patent/CN109728319B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152578A (en) * | 2010-12-21 | 2011-08-17 | 上海林洋储能科技有限公司 | Method for preparing highly conductive multi-layered composite plate |
| CN102637881A (en) * | 2012-04-11 | 2012-08-15 | 朝阳华鼎储能技术有限公司 | Method for preparing electroconductive plastic bipolar plate for vanadium cell |
| CN103633336A (en) * | 2012-08-29 | 2014-03-12 | 中国科学院大连化学物理研究所 | Bipolar plate for liquid flow energy storage battery and preparation method |
| CN104466197A (en) * | 2014-11-28 | 2015-03-25 | 中国科学院金属研究所 | Bipolar plate for vanadium battery and preparation method of bipolar plate |
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| 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 |
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