CN108666594A - A kind of bipolar plates manufacture craft - Google Patents
A kind of bipolar plates manufacture craft Download PDFInfo
- Publication number
- CN108666594A CN108666594A CN201810289520.7A CN201810289520A CN108666594A CN 108666594 A CN108666594 A CN 108666594A CN 201810289520 A CN201810289520 A CN 201810289520A CN 108666594 A CN108666594 A CN 108666594A
- Authority
- CN
- China
- Prior art keywords
- graphite cake
- bipolar plates
- graphite
- battery
- manufacture craft
- 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
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Classifications
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0213—Gas-impermeable carbon-containing materials
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0223—Composites
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of bipolar plates manufacture crafts, and its step are as follows：(1) enough polyvinyl paraffin waxes are selected, are placed in vessel in heating until all melting；(2) graphite cake is immersed in the polyvinyl paraffin wax of melting, is taken out again until no bubble is emerged；(3) by by oozing the graphite cake bound edge of Lasaxing Oilfield and ensuring internal no leakage, then it is connected with the shell of battery by PVC glue.The both sides for oozing the graphite cake of Lasaxing Oilfield all connect anode and cathode respectively as battery with graphite felt；(4) the concatenated positive and negative electrode tie point of two batteries, that is, bipolar plates are formed using this graphite cake after sealing.The present invention chooses filler of the polyvinyl paraffin wax material as graphite cake, on the one hand solves the infiltration problem of graphite cake, on the other hand meets the electric conductivity of graphite cake in zinc iodine battery；Form bipolar plates that are small, conducting electricity very well；Also it solves the problems, such as because filler melts caused by zinc iodine battery generates heat in use.
Description
Technical field
The present invention relates to a kind of manufacture crafts of bipolar plates, belong to Materials Science and Engineering field.
Background technology
Since the output voltage of zinc-bromine bettery or the element cell of zinc iodine battery only has 1.8V or 1.3V, need more piece electricity
Pond is connected, and is likely to reach the required rated voltage of device.In order to improve the spatially integrate degree of system, best bet is certain
It is to be fabricated directly in multiple batteries together, the anode of such previous stage is exactly the cathode of rear stage (or opposite), it is therefore necessary to
There is such material to serve as this role, this is just called bipolar plates, it is both a pole (as anode) for previous stage battery and latter
Another pole (such as cathode) of grade battery.It will be apparent that it must be conductive.Simultaneously because either zinc-bromine bettery or zinc iodine battery,
All it is chemical cell, common metal will be corroded, and as gold, platinum etc. are noble metals, cost is too high, under normal circumstances less
Bipolar plate material is possibly served for, then, our common graphite material such as graphite cakes are howFrom the point of view of electric conductivity, graphite material
It is a good plate material, and is not chemically reacted under normal conditions with electrolyte, however, graphite material is due to certainly
Body constituted mode determines that it must be more than one (as constituted hexagon arrangement, between layers van der waals force combination in layer)
Porous materials cause electrolyte that can penetrate graphite cake leaching and invade other side, to be damaged to battery.Therefore to graphite material
It is handled, prevents electrolyte from, to exosmosis, and also ensuring the electric conductivity of graphite cake by graphite cake, can be used as double
Pole plate, at key to solve this problem.
Invention content
The purpose of the invention is to provide a kind of bipolar plates manufacture craft, to solve the above problem of the prior art.
The purpose of the present invention is achieved through the following technical solutions.
A kind of bipolar plates manufacture craft, its step are as follows：
(1) enough polyvinyl paraffin waxes are selected, are placed in vessel in heating until all melting；
(2) graphite cake is immersed in the polyvinyl paraffin wax of melting, is taken out again until no bubble is emerged；
(3) by by oozing the graphite cake bound edge of Lasaxing Oilfield and ensuring internal no leakage, then pass through the outer of PVC glue and battery
Shell phase connects；The both sides for oozing the graphite cake of Lasaxing Oilfield all connect anode and cathode respectively as battery with graphite felt；
(4) it is formed the concatenated positive and negative electrode tie point of two batteries using this graphite cake after sealing, that is,
Bipolar plates.
In step (1), the heating temperature is 110 DEG C, and the mobility, permeability of polyvinyl paraffin wax are all good at this time.
In step (2), it is to be taken out to system true in subnormal ambient that better mode, which is by the environment of entire reaction process,
Sky, vacuum degree is 8 × 10-2MPa-1×10-3MPa ranges
Technical solution of the present invention has the advantages that：
(1) it is used as the filler of graphite cake by choosing special polyvinyl paraffin wax material, on the one hand solves graphite cake
Infiltration problem, on the other hand meet the electric conductivity of graphite cake in zinc iodine battery；Form pair that be small, conducting electricity very well
Pole plate；
(2) also, by choosing special polyvinyl paraffin wax material it is used as the filler of graphite cake, also solves because of zinc
The problem of filler melts caused by iodine battery generates heat in use.
Specific implementation mode
With reference to the specific embodiment technical characterstic that the present invention is further explained.
The bipolar plates of the embodiment of the present invention use following manufacture craft：
(1) enough polyvinyl paraffin waxes are selected, are placed in container, heating at a temperature of 110 DEG C is until all fusings；
(2) graphite cake is immersed in the polyvinyl paraffin wax of melting, is taken out again until no bubble is emerged；
(3) by by oozing the graphite cake bound edge of Lasaxing Oilfield and ensuring internal no leakage, then pass through the outer of PVC glue and battery
Shell phase connects.The both sides for oozing the graphite cake of Lasaxing Oilfield all connect anode and cathode respectively as battery with graphite felt；
(4) it is formed the concatenated positive and negative electrode tie point of two batteries using this graphite cake after sealing, that is,
Bipolar plates.
In step (2), it is to be taken out to system true in subnormal ambient that better mode, which is by the environment of entire reaction process,
Sky, vacuum degree is 8 × 10-2MPa-1×10-3MPa ranges
Graphite cake after processing, volume do not significantly increase, but apparent weightening, have illustrated many polyvinyl paraffin waxes
Through having got into the porous space inside graphite cake, think that due to causing leakage should be exactly mainly these before us
Porous space.
The processed graphite cake permeability test of embodiment polyvinyl paraffin wax：
The graphite flake crossed by Treating Cuttings with Paraffin Wax is clamped using upper and lower two glass rings, and gently scalps surface with knife and gathers
Ethylene paraffin, graphite cake is still conductive and the reflection such as resistance electric conductivity parameter changes within 10% substantially, and at this point, original
The no longer leakage really of the graphite flake of transparent liquid.This graphite flake of explanation Jing Guo high temperature Treating Cuttings with Paraffin Wax, which can be used as, has conductive spy
The bipolar plates of property use.
The basic principles and main features of the present invention have been shown and described above.It should be understood by those skilled in the art that
The present invention is not limited to the above embodiments, and the above embodiments and description only illustrate the principle of the present invention,
Without departing from the spirit and scope, various changes and improvements may be made to the invention, these changes and improvements are all fallen
Enter in scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (4)
1. a kind of bipolar plates manufacture craft, it is characterised in that：Its step are as follows：
(1) enough polyvinyl paraffin waxes are selected, are placed in vessel in heating until all melting；
(2) graphite cake is immersed in the polyvinyl paraffin wax of melting, is taken out again until no bubble is emerged；
(3) by by oozing the graphite cake bound edge of Lasaxing Oilfield and ensuring internal no leakage, then pass through the outer shell phase of PVC glue and battery
Even；The both sides for oozing the graphite cake of Lasaxing Oilfield all connect anode and cathode respectively as battery with graphite felt；
(4) it is formed the concatenated positive and negative electrode tie point of two batteries using this graphite cake after sealing, that is, bipolar
Plate.
2. a kind of bipolar plates manufacture craft according to claim 1, it is characterised in that：In step (1), the heating temperature
Degree is 110 DEG C.
3. a kind of bipolar plates manufacture craft according to claim 1, it is characterised in that：In step (2), entire reaction process
Environment be subnormal ambient in.
4. a kind of bipolar plates manufacture craft according to claim 3, it is characterised in that：System is vacuumized, vacuum degree is 8
×10-2MPa-1×10-3MPa ranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289520.7A CN108666594A (en) | 2018-04-03 | 2018-04-03 | A kind of bipolar plates manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289520.7A CN108666594A (en) | 2018-04-03 | 2018-04-03 | A kind of bipolar plates manufacture craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108666594A true CN108666594A (en) | 2018-10-16 |
Family
ID=63782857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810289520.7A Pending CN108666594A (en) | 2018-04-03 | 2018-04-03 | A kind of bipolar plates manufacture craft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108666594A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020094615A1 (en) * | 2018-11-08 | 2020-05-14 | Thyssenkrupp Industrial Solutions Ag | Redox flow cell bipolar plate, method for producing same, and redox flow cells |
| CN113921825A (en) * | 2021-10-09 | 2022-01-11 | 华东师范大学 | Preparation and calibration method of anti-seepage conductive graphite plate for aqueous solution battery |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001085031A (en) * | 1999-09-16 | 2001-03-30 | Kemitsukusu:Kk | Gas impermeable carbon plate for fuel cell |
| CN1632974A (en) * | 2003-12-22 | 2005-06-29 | 中国科学院大连化学物理研究所 | Surface treating method for graphite bipolar plate |
| CN1971983A (en) * | 2005-11-24 | 2007-05-30 | 江苏双登集团有限公司 | Processing method for reducing permeability of graphite cake of fuel battery |
| CN101009376A (en) * | 2006-01-25 | 2007-08-01 | 中国科学院大连化学物理研究所 | Integrated pole dual-pole board for oxidation deoxidization liquid energy-storing battery and its preparation |
| CN101483240A (en) * | 2008-03-03 | 2009-07-15 | 上海弘枫石墨制品有限公司 | Ultra-thin graphite bi-polar plate processing method used for fuel cell |
| CN102569824A (en) * | 2011-12-30 | 2012-07-11 | 黄权波 | Bipolar plate of integrated composite electrode, and manufacturing method and application thereof |
| CN202523794U (en) * | 2012-03-21 | 2012-11-07 | 北京百能汇通科技股份有限公司 | Enhanced bipolar plate and enhanced zinc bromine battery |
| CN102867978A (en) * | 2011-07-05 | 2013-01-09 | 中国科学院大连化学物理研究所 | Flow energy storage battery structure |
| CN106450375A (en) * | 2016-12-15 | 2017-02-22 | 浙江纽能新能源科技有限公司 | Fuel cell pore sealing method |
-
2018
- 2018-04-03 CN CN201810289520.7A patent/CN108666594A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| JP2001085031A (en) * | 1999-09-16 | 2001-03-30 | Kemitsukusu:Kk | Gas impermeable carbon plate for fuel cell |
| CN1632974A (en) * | 2003-12-22 | 2005-06-29 | 中国科学院大连化学物理研究所 | Surface treating method for graphite bipolar plate |
| CN1971983A (en) * | 2005-11-24 | 2007-05-30 | 江苏双登集团有限公司 | Processing method for reducing permeability of graphite cake of fuel battery |
| CN101009376A (en) * | 2006-01-25 | 2007-08-01 | 中国科学院大连化学物理研究所 | Integrated pole dual-pole board for oxidation deoxidization liquid energy-storing battery and its preparation |
| CN101483240A (en) * | 2008-03-03 | 2009-07-15 | 上海弘枫石墨制品有限公司 | Ultra-thin graphite bi-polar plate processing method used for fuel cell |
| CN102867978A (en) * | 2011-07-05 | 2013-01-09 | 中国科学院大连化学物理研究所 | Flow energy storage battery structure |
| CN102569824A (en) * | 2011-12-30 | 2012-07-11 | 黄权波 | Bipolar plate of integrated composite electrode, and manufacturing method and application thereof |
| CN202523794U (en) * | 2012-03-21 | 2012-11-07 | 北京百能汇通科技股份有限公司 | Enhanced bipolar plate and enhanced zinc bromine battery |
| CN106450375A (en) * | 2016-12-15 | 2017-02-22 | 浙江纽能新能源科技有限公司 | Fuel cell pore sealing method |
Non-Patent Citations (3)
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|---|
| WOO IN JANG等: "Development of a PP/carbon/CNT composite electrode for the zinc/bromine redox flow battery", 《MACROMOLECULAR RESEARCH》 * |
| 印度SBP技术咨询委员会: "聚乙烯蜡", 《工业蜡及其配方》 * |
| 王明华 等: "一种浸渍燃料电池用石墨双极板的新方法", 《电源技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020094615A1 (en) * | 2018-11-08 | 2020-05-14 | Thyssenkrupp Industrial Solutions Ag | Redox flow cell bipolar plate, method for producing same, and redox flow cells |
| CN113921825A (en) * | 2021-10-09 | 2022-01-11 | 华东师范大学 | Preparation and calibration method of anti-seepage conductive graphite plate for aqueous solution battery |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |