CN101132067A - Composite material of fuel cell dual-electrode plates and manufacturing method thereof - Google Patents
Composite material of fuel cell dual-electrode plates and manufacturing method thereof Download PDFInfo
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- CN101132067A CN101132067A CNA2007100167480A CN200710016748A CN101132067A CN 101132067 A CN101132067 A CN 101132067A CN A2007100167480 A CNA2007100167480 A CN A2007100167480A CN 200710016748 A CN200710016748 A CN 200710016748A CN 101132067 A CN101132067 A CN 101132067A
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- tube
- carbon nano
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- graphite
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
This invention relates to the conducting composite material and its preparation process, particularly carbon nanometer tube reinforced phenolic resin/graphite based fuel-cell double-pole plate material. The raw material (weight percentages) are: graphite 72.0-88.0%, phenolic resin 11.5-23.0%, carbon nanometer tube 0.50-5.00%. The preparation procedures are as fellow: surface pretreatment of carbon nanometer tube, proportion dosage of said raw materials, mixed by ball-milling or agitation, finally proceeding hot-pressing and being sintered to obtain the inventive product. The advantages are: ambient temperature volume electric conductivity being 100-200s/cm; flexural strength being 55-75MPa, simple process, the physical and chemical properties being better than that of prior art resin/graphite conducting material.
Description
One, technical field
The invention belongs to conducing composite material and preparation technology field thereof, relate in particular to a kind of carbon nano-tube and strengthen phenolic resin composite material and preparation technology thereof.
Two, background technology
Fuel cell is considered to the cleaning of first-selection in this century, Blast Furnace Top Gas Recovery Turbine Unit (TRT) efficiently.Because its energy conversion efficiency height, pollute for a short time, the discharging carbon dioxide is less etc. all multifactor, and enjoys national governments and scientist's attention.And wherein main element-bipolar plates, shared expense is than higher, occupied by bipolar plates as the 60-70% of cost in the Proton Exchange Membrane Fuel Cells.The fuel battery double plates material mainly contains metal material, graphite material and resin/graphite composite material at present; The resin/graphite composite material is one of important research focus of making at present dual polar plates of proton exchange membrane fuel cell, because the bipolar plates of this material can be passed through typical plastics process technology such as extruding, mold pressing or injection technique moulding.Therefore the resin/graphite bipolar plates is easy to large-scale production, and one-shot forming can reduce production costs greatly, thereby can promote the industrialization process of fuel cell.But in the research of this new material, be faced with inevitable contradiction difficult point between intensity and the conductivity, promptly improve the intensity of composite material, just need to increase the content of resin, and the content of increase resin, will inevitably cause the decline of the conductivity of composite material, therefore, the contradiction that overcomes mutual restriction between two physical quantitys is to improve the key of conducing composite material performance.
Three, summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, provide a kind of good conductivity, corrosion resistance is strong, bending strength is high, gas barrier property is good, with low cost, preparation technology's simple graphite-based fuel battery double plates composite material and preparation technology thereof.
Technical scheme of the present invention is as follows:
Utilize good electric conductivity of carbon nano-tube and mechanical property, provide a kind of by carbon nano-tube as strengthening body, phenolic resins is as binding agent, graphite is as the fuel battery double plates composite material of matrix.
The material prescription mass ratio is: graphite material: 72.0-88.0%, phenolic resins: 11.5-23.0%, carbon nano-tube: 0.50-5.00%.
Carbon nano-tube of the present invention strengthens the preparation technology of phenolic resins/graphite fuel battery double plates composite material:
Preparation process comprises: in order to improve the interface binding power of carbon nano-tube and other materials, at first carbon nano-tube is carried out surface preparation; Then prepare burden by the material prescription mass ratio; The material for preparing is carried out ball milling to be mixed or mixes; At last with the mixed powder Thermocompressed sintering and forming.
(1) process of surface treatment of carbon nano-tube:
With Fe
2+, carbon nano-tube and H
2O
2Put into container successively, Fe
2+With H
2O
2Mass ratio 1: 10-1: between 50, regulate the pH value between 1-5, and be to carry out surface treatment 1-5h under the ultraviolet irradiation of 185-436nm at wavelength, then solution is carried out suction filtration, the gained carbon nano-tube is carried out vacuumize;
(2) batching: press the material prescription mass ratio, to preparing burden through surface-treated carbon nano-tube, phenolic resins and graphite material;
(3) material for preparing being carried out ball milling mixes or mixes 1-3h;
(4) mixed powder is packed into compression molding mould for hot pressed sintering moulding, forming temperature is 200～300 ℃, and briquetting pressure is 10～40MPa, and the heat-insulation pressure keeping time is 40～120min.
Conducing composite material of the present invention and preparation technology thereof have following characteristics: 1. the normal temperature volume conductance is 100-200S/cm; 2. the normal temperature bending strength is 55-75MPa.Its technology is simple, and the physics of this material and chemical property obviously are better than the performance of existing resin/graphite based conductive composite material at present, is the excellent material of making fuel battery double plates.
Four, embodiment
Embodiment 1: food ingredient: graphite 79wt%, phenolic resins 20wt%, carbon nano-tube 1%; The pretreating process parameter of carbon nano-tube is: Fe
2+With H
2O
2Mass ratio at 1: 20, the pH value is 2, ultraviolet wavelength 386nm, irradiation time 1h; Batching ball milling incorporation time 2h; With the mixed-powder mould heat pressure of packing into, briquetting pressure: 20MPa, forming temperature: 240 ℃, curing time: 60min.
Prepared conducing composite material performance is as follows: bending strength: 58.6MPa; Conductivity: 145S/cm.
Embodiment 2: food ingredient: graphite 84wt%, phenolic resins 14.85wt%, carbon nano-tube 1.15%; The pretreating process parameter of carbon nano-tube is: Fe
2+With H
2O
2Mass ratio at 1: 40, the pH value is 3, ultraviolet wavelength 254nm, irradiation time 4h; Batching ball milling incorporation time 2.5h; With the mixed-powder mould heat pressure of packing into, briquetting pressure: 30MPa, forming temperature: 260 ℃, curing time: 100min.
Prepared conducing composite material performance is as follows: bending strength: 70.3MPa; Conductivity: 163.2S/cm.
Embodiment 3: food ingredient: graphite 80.5wt%, phenol-formaldehyde resin modified 15.5wt%, carbon nano-tube 4%; The pretreating process parameter of carbon nano-tube is: Fe
2+With H
2O
2Mass ratio at 1: 40, the pH value is 4, ultraviolet wavelength 386nm, irradiation time 3h; Batching ball milling incorporation time 1.5h; With the mixed-powder mould heat pressure of packing into, briquetting pressure: 40MPa, forming temperature: 280 ℃, curing time: 80min.
Prepared conducing composite material performance is as follows: bending strength: 65.2MPa; Conductivity: 180.6S/cm.
Claims (2)
1. a fuel battery double plates composite material is characterized by, and the material prescription mass ratio is: graphite material 72.0-88.0%, phenolic resins 11.5-23.0%, carbon nano-tube 0.50-5.00%.
2. the preparation technology of preparation claims 1 described a kind of fuel battery double plates composite material, it is characterized by: this technical process comprises: to carbon nano-tube carry out surface preparation, batching, ball milling mixes or mix, Thermocompressed sintering and forming:
(1) process of surface treatment of carbon nano-tube:
With Fe
2+, carbon nano-tube and H
2O
2Put into container successively, Fe
2+With H
2O
2Mass ratio 1: 10-1: between 50, regulate the pH value between 1-5, and be to carry out surface treatment 1-5h under the ultraviolet irradiation of 185-436nm at wavelength, then solution is carried out suction filtration, the gained carbon nano-tube is carried out vacuumize;
(2) batching: press the material prescription mass ratio, to preparing burden through surface-treated carbon nano-tube, phenolic resins and graphite material;
(3) material that will prepare carries out the ball milling mixing or mixes 1-3h;
(4) mixed powder is packed into compression molding mould for hot pressed sintering moulding, forming temperature is 200～300 ℃, and briquetting pressure is 10～40MPa, and the heat-insulation pressure keeping time is 40～120min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100167480A CN100479239C (en) | 2007-08-03 | 2007-08-03 | Composite material of fuel cell dual-electrode plates and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100167480A CN100479239C (en) | 2007-08-03 | 2007-08-03 | Composite material of fuel cell dual-electrode plates and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101132067A true CN101132067A (en) | 2008-02-27 |
| CN100479239C CN100479239C (en) | 2009-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100167480A Expired - Fee Related CN100479239C (en) | 2007-08-03 | 2007-08-03 | Composite material of fuel cell dual-electrode plates and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347957A (en) * | 2011-02-07 | 2013-10-09 | 大阳日酸株式会社 | Composite resinous particles, method of producing composite resinous particles, composite resin molded body, and method of producing same |
| CN103811184A (en) * | 2012-11-15 | 2014-05-21 | 海洋王照明科技股份有限公司 | Graphene-carbon nano tube combined electrode and super capacitor manufacturing method |
| CN110061258A (en) * | 2018-01-18 | 2019-07-26 | 上海汽车集团股份有限公司 | A kind of fuel battery pole board and preparation method thereof and a kind of fuel cell |
| US10435519B2 (en) | 2009-01-20 | 2019-10-08 | Taiyo Nippon Sanso Corporation | Composite resinous material particles and process for producing same |
| CN112259755A (en) * | 2020-10-20 | 2021-01-22 | 江苏中氢氢电科技有限公司 | Preparation method of graphite-based composite bipolar plate |
| CN114300775A (en) * | 2021-12-30 | 2022-04-08 | 湖南金博碳素股份有限公司 | Preparation method of pyrolytic carbon/graphite composite material |
| CN114792820A (en) * | 2021-01-25 | 2022-07-26 | 上海神力科技有限公司 | Bipolar plate for fuel cell stack and preparation method thereof |
| CN115893378A (en) * | 2022-11-11 | 2023-04-04 | 海卓动力(北京)能源科技有限公司 | Modified carbon nanotube and preparation method thereof, graphite bipolar plate and preparation method thereof |
-
2007
- 2007-08-03 CN CNB2007100167480A patent/CN100479239C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10435519B2 (en) | 2009-01-20 | 2019-10-08 | Taiyo Nippon Sanso Corporation | Composite resinous material particles and process for producing same |
| US9183966B2 (en) | 2011-02-07 | 2015-11-10 | Taiyo Nippon Sanso Corporation | Composite resinous particles, method of producing composite resinous particles, composite resin molded body, and method of producing same |
| CN103347957B (en) * | 2011-02-07 | 2016-05-04 | 大阳日酸株式会社 | Manufacture method, composite resin molded article and the manufacture method thereof of composite resin material particle, composite resin material particle |
| CN103347957A (en) * | 2011-02-07 | 2013-10-09 | 大阳日酸株式会社 | Composite resinous particles, method of producing composite resinous particles, composite resin molded body, and method of producing same |
| CN103811184A (en) * | 2012-11-15 | 2014-05-21 | 海洋王照明科技股份有限公司 | Graphene-carbon nano tube combined electrode and super capacitor manufacturing method |
| CN110061258B (en) * | 2018-01-18 | 2020-12-08 | 上海汽车集团股份有限公司 | Fuel cell polar plate and preparation method thereof and fuel cell |
| CN110061258A (en) * | 2018-01-18 | 2019-07-26 | 上海汽车集团股份有限公司 | A kind of fuel battery pole board and preparation method thereof and a kind of fuel cell |
| CN112259755A (en) * | 2020-10-20 | 2021-01-22 | 江苏中氢氢电科技有限公司 | Preparation method of graphite-based composite bipolar plate |
| CN112259755B (en) * | 2020-10-20 | 2021-09-28 | 江苏中氢氢电科技有限公司 | Preparation method of graphite-based composite bipolar plate |
| CN114792820A (en) * | 2021-01-25 | 2022-07-26 | 上海神力科技有限公司 | Bipolar plate for fuel cell stack and preparation method thereof |
| CN114300775A (en) * | 2021-12-30 | 2022-04-08 | 湖南金博碳素股份有限公司 | Preparation method of pyrolytic carbon/graphite composite material |
| CN114300775B (en) * | 2021-12-30 | 2024-07-23 | 湖南金博碳素股份有限公司 | Preparation method of pyrolytic carbon/graphite composite material |
| CN115893378A (en) * | 2022-11-11 | 2023-04-04 | 海卓动力(北京)能源科技有限公司 | Modified carbon nanotube and preparation method thereof, graphite bipolar plate and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100479239C (en) | 2009-04-15 |
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