CN1172393C - Composite-layer bipolar plate of polymer-membrane fuel battery and its preparing process - Google Patents
Composite-layer bipolar plate of polymer-membrane fuel battery and its preparing process Download PDFInfo
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- CN1172393C CN1172393C CNB011449721A CN01144972A CN1172393C CN 1172393 C CN1172393 C CN 1172393C CN B011449721 A CNB011449721 A CN B011449721A CN 01144972 A CN01144972 A CN 01144972A CN 1172393 C CN1172393 C CN 1172393C
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- layer
- polypyrrole
- polyaniline
- bipolar plate
- composite
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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
- Y02E60/10—Energy storage using batteries
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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 present invention discloses a composite layer bipolar plate for a polymer membrane fuel battery and a manufacturing method thereof. The bipolar plate is characterized in that the integral structure is composed of graphite worms, a polypyrrole or polyaniline membranous layer is arranged on the outer surface, and a polypyrrole or polyphenylamine network layer is blended in the middle of a plate wall graphite worm layer, or a thin metal plate is clamped in the middle of the plate wall graphite worm layer. The manufacturing method comprises: a die pressing method is adopted; graphite worms are fully filled into an upper mold and a lower mold, and a thin metal plate is placed in the middle of the graphite worms and then is pressed for molding, or graphite worms are fully filled into the upper mold and the lower mold and then are pressed for molding, and after molding, the polypyrrole or polyaniline membranous layer is coated or electrically synthesized on the surface of the polar plate. The manufacturing method is characterized in that the composite layer bipolar plate is molded under 10 to 80MPa, and the polypyrrole or polyaniline network layer is electrically synthesized in the plate wall graphite worm layer. The composite layer bipolar plate of the present invention has the advantages of corrosion resistance, light weight, favorable electric conductivity and low manufacturing cost.
Description
Technical field
The present invention relates to composite-layer bipolar plate of a kind of polymer-membrane fuel battery and preparation method thereof.Belong to hydrogen-oxygen, direct methanol fuel cell bipolar plate material and manufacturing technology.
Background technology
The bipolar plates of polymer-membrane fuel battery normally adopts three high graphite or metal to process.Three high graphite bi-polar plates make its gauge bigger because of guaranteeing enough mechanical strengths, and electric conductivity is not ideal enough, and the volumetric power density of battery pile is lower.The good conductivity of metal double polar plates short-term, but perishable, cause long-term electric conductivity to descend, must be through surface treatment, in addition, the weight of metal double polar plates is bigger, and the weight power density of battery pile is lower.In order to overcome the deficiency of above-mentioned bipolar plates, developed multiple bipolar plate material abroad.Resin impregnation graphite is an important class, although concrete material, proportioning, moulding and processing method are had nothing in common with each other.Resin impregnation has improved the fragility of admant China ink, can make the thinner easier processing of flow-field plate, and may adopt forming method efficiently such as mold pressing, mould notes.But this class technology generally can make the resistance of resin increase and the resin carbonation process in material yielding etc.The patent proposition employing graphite powder or other material with carbon element and the compound system bipolar plates of polymeric material that have are perhaps modified graphite bi-polar plate with conducting polymer, thereby improve the electric conductivity of graphite bi-polar plate.But processing mode is complicated, and cost is higher, and electric conductivity is also not ideal enough.Flexible graphite has the required multinomial excellent characteristic of bipolar plates, but its air-tightness is relatively poor.Therefore have that to propose flexible graphite in the patent compound with resin or metallic plate, but still there are the problem of meeting increase resistance in general and resin compounded.
Summary of the invention
The object of the present invention is to provide composite-layer bipolar plate of a kind of polymer-membrane fuel battery and preparation method thereof.This fuel battery double plates is corrosion-resistant, in light weight, conduct electricity very well, low cost of manufacture.
For achieving the above object, the present invention is implemented by following proposal.Adopt the fuel cell composite-layer bipolar plate of graphite worm, polypyrrole or the body plan of polyaniline compound conducting polymer, it is characterized in that: the overall structure of bipolar plates is made of graphite worm, at its outer surface is polypyrrole or polyaniline rete, blending polypyrrole or polyaniline network layer in the middle of wooden partition graphite worm layer.
Above-mentioned polypyrrole or polyaniline film layer thickness are 0.01～0.1mm.
The method for preparing above-mentioned composite-layer bipolar plate, adopt die pressing, its step is to fill up graphite worm in upper and lower mould, pressure forming then, polar board surface coating after moulding or synthetic polypyrrole of electricity or polyaniline rete, it is characterized in that:, in its internal void of wooden partition graphite worm, adopt electrosynthesis to make polypyrrole or layer/polyaniline conductive polymer network layer with 10～80MPa forming under the pressure.
Composite-layer bipolar plate of the present invention is corrosion-resistant, in light weight, conduct electricity very well, low cost of manufacture.
Description of drawings
Accompanying drawing 1 is composite-layer bipolar plate structural representation of the present invention.
1,3 is polypyrrole or polyaniline rete in the accompanying drawing; 2 is the graphite worm wooden partition; 4 is polypyrrole or polyaniline network layer.
Embodiment
1, graphite worm is placed in the mould, under the room temperature, the pressure that applies 10～80MPa is directly suppressed the formation bipolar plates
2, normal temperature, normal pressure down by the synthetic method of electricity with the polypyrrole conducting polymer in the bipolar plate surfaces film forming, thickness is 0.02mm, and in pole plate inside, is the polypyrrole conducting polymer network layer of template electricity synthesis nano with the nano-pore of graphite worm.(seeing accompanying drawing 1)
1, the graphite worm of half amount is tiled in lower floor between the upper and lower mould,, can be put on the worm layer by the Thin Stainless Steel plate level that 0.1mm is thick, put into the graphite worm of second half amount at last again through after the surface treatment for increasing the intensity of bipolar plates.
2, under the normal temperature, the pressure that mould is applied 10～80MPa makes the complete moulding of bipolar plates, comprises required runner, hole and sealing flange etc., and thickness is 2.5mm, and gash depth is 1mm.
3, in the bipolar plate surfaces film forming, thickness is 0.02mm to the method for synthesizing by electricity under normal temperature, the normal pressure with the polypyrrole conducting polymer.
Claims (3)
1. the composite-layer bipolar plate of a polymer-membrane fuel battery, this bipolar plates adopts graphite worm and polypyrrole or the body plan of polyaniline compound conducting polymer to form, it is characterized in that: the overall structure of bipolar plates is made of graphite worm, at its outer surface is polypyrrole or polyaniline rete, blending polypyrrole or polyaniline network layer in the middle of wooden partition graphite worm layer.
2. by the composite-layer bipolar plate of the described polymer-membrane fuel battery of claim 1, it is characterized in that: polypyrrole or polyaniline film layer thickness are 0.01～0.1mm.
3. method for preparing the composite-layer bipolar plate of the described polymer-membrane fuel battery of claim 1, adopt die pressing, its step is to fill up graphite worm in upper and lower mould, pressure forming then, polar board surface coating after moulding or synthetic polypyrrole of electricity or polyaniline rete, it is characterized in that:, in its internal void of wooden partition graphite worm, adopt electrosynthesis to make polypyrrole or layer/polyaniline conductive polymer network layer with 10～80MPa forming under the pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011449721A CN1172393C (en) | 2001-12-26 | 2001-12-26 | Composite-layer bipolar plate of polymer-membrane fuel battery and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011449721A CN1172393C (en) | 2001-12-26 | 2001-12-26 | Composite-layer bipolar plate of polymer-membrane fuel battery and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1355573A CN1355573A (en) | 2002-06-26 |
| CN1172393C true CN1172393C (en) | 2004-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011449721A Expired - Fee Related CN1172393C (en) | 2001-12-26 | 2001-12-26 | Composite-layer bipolar plate of polymer-membrane fuel battery and its preparing process |
Country Status (1)
| Country | Link |
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| CN (1) | CN1172393C (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320673C (en) * | 2003-06-04 | 2007-06-06 | 上海神力科技有限公司 | Guide polar plate for proton exchanging membrane fuel battery and producing method thereof |
| CN100388537C (en) * | 2003-09-05 | 2008-05-14 | 中国科学院大连化学物理研究所 | Fuel cell composite material double polar plate and its making method |
| CN100338806C (en) * | 2004-07-06 | 2007-09-19 | 中国科学院大连化学物理研究所 | Improved structure of graphite plate double polar plates for proton exchange film fuel cell |
| CN100349315C (en) * | 2004-12-08 | 2007-11-14 | 中国科学院金属研究所 | Method for surface treating stainless steel double polar plate of proton exchanging film fuel cell |
| US7597984B2 (en) * | 2005-01-24 | 2009-10-06 | Gm Global Technology Operations, Inc. | Fuel cell bipolar plates with multiple active areas separated by non-conductive frame header |
| US8003275B2 (en) | 2005-05-24 | 2011-08-23 | Samsung Sdi Co., Ltd. | Monopolar membrane-electrode assembly |
| KR100784998B1 (en) * | 2005-05-24 | 2007-12-11 | 삼성에스디아이 주식회사 | Monopolar membrane-electrode assembly |
| US7622211B2 (en) * | 2005-06-01 | 2009-11-24 | Gm Global Technology Operations, Inc. | Hydrophilic fuel cell bipolar plate having a plasma induced polymerization coating |
| KR100738061B1 (en) | 2006-05-16 | 2007-07-10 | 삼성에스디아이 주식회사 | Monopolar membrane-electrode assembly |
| CN101630744B (en) * | 2008-07-16 | 2011-02-16 | 上海蓝蔚科技发展有限公司 | Method for electric shock synthesis of graphite bipolar plate of fuel battery |
| CN107819137A (en) * | 2016-09-12 | 2018-03-20 | 中国科学院金属研究所 | A kind of soft graphite bipolar plates and preparation method thereof |
| CN108199058B (en) * | 2017-12-15 | 2023-05-05 | 中国第一汽车股份有限公司 | Preparation method of conductive polymer-graphene composite bipolar plate |
| CN109786778A (en) * | 2019-01-28 | 2019-05-21 | 威海南海碳材料科技研究院有限公司 | A kind of composite dual-electrode plates used for all-vanadium redox flow battery and preparation method thereof |
| CN111952619A (en) * | 2019-05-14 | 2020-11-17 | 中国科学院化学研究所 | Composite bipolar plate of proton exchange membrane fuel cell and preparation method thereof |
| CN110993982A (en) * | 2019-11-27 | 2020-04-10 | 一汽解放汽车有限公司 | High-conductivity flexible graphite bipolar plate and preparation method thereof |
| CN111129537A (en) * | 2019-12-31 | 2020-05-08 | 一汽解放汽车有限公司 | Composite graphite bipolar plate and preparation method and application thereof |
| CN111799481B (en) * | 2020-06-12 | 2023-01-17 | 暨南大学 | Cathode capable of accelerating chromium reduction and preparation method and application thereof |
| CN111697248A (en) * | 2020-06-22 | 2020-09-22 | 内蒙古中科四维热管理材料有限公司 | Metal composite graphite bipolar plate and preparation method thereof |
| CN115763861A (en) * | 2022-12-05 | 2023-03-07 | 吉林大学 | Graphite composite bipolar plate with 3D metal framework and preparation method thereof |
-
2001
- 2001-12-26 CN CNB011449721A patent/CN1172393C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1355573A (en) | 2002-06-26 |
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