CN102011284B - Special carbon felt production process for vanadium redox battery (VRB) for energy storage - Google Patents
Special carbon felt production process for vanadium redox battery (VRB) for energy storage Download PDFInfo
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- CN102011284B CN102011284B CN201010586645XA CN201010586645A CN102011284B CN 102011284 B CN102011284 B CN 102011284B CN 201010586645X A CN201010586645X A CN 201010586645XA CN 201010586645 A CN201010586645 A CN 201010586645A CN 102011284 B CN102011284 B CN 102011284B
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- Prior art keywords
- felt
- furnace
- energy storage
- stereotyped
- dull
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000004146 energy storage Methods 0.000 title claims abstract description 21
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title abstract description 4
- 230000003647 oxidation Effects 0.000 claims abstract description 31
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 31
- 238000003763 carbonization Methods 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 16
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 14
- 238000001467 acupuncture Methods 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 16
- 238000005087 graphitization Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010409 ironing Methods 0.000 abstract 3
- 238000009960 carding Methods 0.000 abstract 1
- 229920006240 drawn fiber Polymers 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 235000013619 trace mineral Nutrition 0.000 description 3
- 239000011573 trace mineral Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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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- Inorganic Fibers (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a special carbon felt production process for a vanadium redox battery (VRB) for energy storage. The production process comprises the following steps: preparing polyacrylonitrile fiber into a white flat felt; performing pre-oxidation treatment on the white flat felt in a pre-oxidation furnace; and performing carbonization treatment on the pre-oxidized felt in a carbonization furnace. The step of preparing the polyacrylonitrile fiber into a white flat felt further comprises the following steps: carding the polyacrylonitrile fiber and performing cross lapping; drawing the fiber net by a multi-roll drawing machine; preparing the drawn fiber net into a felt by pre-acupuncture and main acupuncture; and ironing the felt at the inlet of an ironing machine with adjusted thickness and speed. In the special carbon felt production process for the VRB for energy storage, the ironing step is added to the process of preparing the flat felt so that the flat felt has better flatness, and the flatness of the final product is greatly improved.
Description
[technical field]
The present invention relates to the special-purpose carbon felt of all-vanadium liquid flow energy storage battery, particularly the production technology of the special-purpose carbon felt of a kind of all-vanadium liquid flow energy storage battery.
[background technology]
The all-vanadium flow battery is a kind of novel energy memory technology, compares with common in the market lead-acid battery, Ni-MH battery etc., has power and can reach MW class, service life and reach 20 years, support the obviously technical advantage such as frequent high current charge-discharge.The every field such as all-vanadium flow batteries to store energy technology can be widely used in that regenerative resource (solar energy, wind energy) generating, island are independently-powered, urban distribution network energy storage and peak load cutting.
In traditional handicraft, the special-purpose carbon felt of all-vanadium liquid flow energy storage battery adopts the method for reserving a post to produce.So-called " hanging method processed " after soon polyacrylonitrile fibre will be made white dull and stereotyped felt through the manufacturing shop, purchased the dull and stereotyped felt of white and passed through pre-oxidation treatment after hanging up with stainless steel.Produced like this carbon felt has hole in the place of using hook, and in the time of in entering carbide furnace, pertusate place must be dismissed on the felt, the waste material.On the other hand, even pertusate place has been dismissed on the felt, the place near hole on the felt still has wrinkle, and integral smoothness is bad.
[summary of the invention]
In view of this, for overcoming the deficiencies in the prior art, the invention provides a kind of production technology that improves the special-purpose carbon felt of all-vanadium liquid flow energy storage battery of finished product flatness.
The production technology of the special-purpose carbon felt of a kind of all-vanadium liquid flow energy storage battery may further comprise the steps: polyacrylonitrile fibre is made white dull and stereotyped felt; The dull and stereotyped felt of white is carried out pre-oxidation treatment at pre-oxidation furnace; The pre-oxygen felt that pre-oxygen is good is put into carbide furnace through carbonization treatment.It is described that polyacrylonitrile fibre is made the step of white dull and stereotyped felt is further comprising the steps: with polyacrylonitrile fibre through cross lapping after the combing; Fiber web is carried out drawing-off through multi-roll drafting machine; Fiber web after the drawing-off is made felt through pre-needling and main acupuncture; And felt is put into the press entrance of adjusting thickness and speed plate.
Preferably, carry out in the pre-oxidation treatment step at pre-oxidation furnace at the dull and stereotyped felt of described white, the dull and stereotyped felt of described white is suspended in the pre-oxidation furnace with folding mode with steel pipe.
Preferably, carry out in the pre-oxidation treatment step at pre-oxidation furnace at the dull and stereotyped felt of described white, the temperature of pre-oxidation furnace 160 during by initial shove charge degree adds the pre-oxygen of oxygen and is warming up to 300 degree.
Preferably, carry out in the pre-oxidation treatment step at pre-oxidation furnace at the dull and stereotyped felt of described white, in carbonization forward direction carbide furnace, pass into the high pure nitrogen protection.
Preferably, to carry out the pre-oxidation treatment step at pre-oxidation furnace further comprising the steps for the dull and stereotyped felt of described white: carbide furnace is warming up to 1400 degree and constant temperature kept 4 hours; And take out the carbonization felt after being cooled to carbide furnace below 30 degree.
Preferably, the further following steps of described technique: the carbonization felt graphitizing furnace of packing into is carried out graphitization processing.
Preferably, described the carbonization felt graphitizing furnace of packing into is carried out in the graphitization processing step, in graphitization forward direction graphitizing furnace, pass into argon shield.
Preferably, describedly the carbonization felt is packed into to carry out the graphitization processing step further comprising the steps for graphitizing furnace: graphitizing furnace is warming up to 1400 degree and constant temperature kept 5 hours; And take out the carbonization felt after being cooled to graphitizing furnace below 50 degree.
The production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery of the present invention has added the step that plates in making the technique of dull and stereotyped felt, make the flatness of the dull and stereotyped felt that obtains better, thereby so that the flatness of final finished greatly improve.
[specific embodiment]
For understanding better the present invention, below with reference to instantiation invention is described in detail.
As mentioned before, the problem that exists for solving extension method processed, my company has improved the technique of the special-purpose carbon felt of full vanadium liquid energy-storage battery through years of researches.Concrete technical process will be described in detail as follows.
1, use polyacrylonitrile fibre to make white dull and stereotyped felt through the felt workshop:
With cross lapping after the combing of polyacrylonitrile fibre process; Fiber web is carried out drawing-off through multi-roll drafting machine; Fiber web after the drawing-off is made felt through pre-needling and main acupuncture; Felt is put into the press entrance of adjusting thickness and speed to plate.
Through after the above-mentioned processing, it is 1.43-1.48g/cm that polyacrylonitrile fibre is made into density
3White dull and stereotyped felt, its length is 18.5-22m, width is 1.5-1.75m, thickness is 0.9-0.11mm.
2, white dull and stereotyped felt carries out pre-oxidation treatment at pre-oxidation furnace:
The dull and stereotyped felt of white is suspended in the pre-oxidation furnace with folding mode with steel pipe, initial temperature 160 degree of dull and stereotyped felt through shove charge the time burn, add pre-oxygen to 300 degree of oxygen, oxygen content does not rise to 8% by original, color by original white become yellow, brown, at last for black, finish pre-oxygen technique the white felt of inflammable polyacrylonitrile fibre become nonflammable pre-oxidation felt.
3, the pre-oxygen felt that pre-oxygen is good is put into carbide furnace process carbonization treatment:
The pre-oxygen felt that pre-oxygen is good is put into the carbide furnace sealing and is vacuumized; In carbide furnace, add the high pure nitrogen protection; Carbide furnace is warming up to 1400 spends also constant temperature maintenance 4 hours; Carbide furnace is cooled to the following rear carbonization felt that takes out of 30 degree.
Temperature-rise period in the above-mentioned carbonisation is complicated, must strictly control heating curve, guarantees separation and the conversion of pre-oxygen felt each trace element in carbonisation, and guarantees that the product phosphorus content reaches more than 92% after this carbonization.
4, the carbonization felt is packed into graphitizing furnace carries out graphitization processing:
With pack into the graphitizing furnace sealing and vacuumizing of carbonization felt; In graphitizing furnace, pass into argon shield; Graphitizing furnace is warming up to 1400 spends also constant temperature maintenance 5 hours; Graphitizing furnace is cooled to the following rear carbonization felt that takes out of 50 degree.
Strictly follow heating curve in the above-mentioned graphitizing process, again the carbon felt is carried out separation and the conversion of each trace element in graphitizing process, temperature 300 during from initial 1-2 hour degree is fired maximum temperature 1400 degree.
Through after the above-mentioned complete technique, the production of the special-purpose carbon felt of full vanadium liquid energy-storage battery finishes.Each trace element reaches respectively as shown in the table in the qualified products:
Claims (8)
1. the production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery may further comprise the steps: polyacrylonitrile fibre is made white dull and stereotyped felt; The dull and stereotyped felt of white is carried out pre-oxidation treatment at pre-oxidation furnace; The pre-oxygen felt that pre-oxygen is good is put into carbide furnace through carbonization treatment; It is characterized in that described that polyacrylonitrile fibre is made the step of white dull and stereotyped felt is further comprising the steps:
With cross lapping after the combing of polyacrylonitrile fibre process;
Fiber web is carried out drawing-off through multi-roll drafting machine;
Fiber web after the drawing-off is made felt through pre-needling and main acupuncture; And
Felt is put into the press entrance of adjusting thickness and speed to plate.
2. the production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery according to claim 1, it is characterized in that: carry out in the pre-oxidation treatment step at pre-oxidation furnace at the dull and stereotyped felt of described white, the dull and stereotyped felt of described white is suspended in the pre-oxidation furnace with folding mode with steel pipe.
3. the production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery according to claim 2, it is characterized in that: carry out in the pre-oxidation treatment step at pre-oxidation furnace at the dull and stereotyped felt of described white, the temperature of pre-oxidation furnace 160 during by initial shove charge degree adds the pre-oxygen of oxygen and is warming up to 300 degree.
4. the production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery according to claim 3 is characterized in that: carry out in the pre-oxidation treatment step at pre-oxidation furnace at the dull and stereotyped felt of described white, pass into the high pure nitrogen protection in carbonization forward direction carbide furnace.
5. the production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery according to claim 4 is characterized in that the dull and stereotyped felt of described white carries out the pre-oxidation treatment step at pre-oxidation furnace further comprising the steps:
Carbide furnace is warming up to 1400 spends also constant temperature maintenance 4 hours; And
Carbide furnace is cooled to the following rear carbonization felt that takes out of 30 degree.
6. the production technology of the special-purpose carbon felt of each described all-vanadium liquid flow energy storage battery in 5 according to claim 1 is characterized in that the further following steps of described technique: the carbonization felt graphitizing furnace of packing into is carried out graphitization processing.
7. the production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery according to claim 6 is characterized in that: described the carbonization felt graphitizing furnace of packing into is carried out in the graphitization processing step, pass into argon shield in graphitization forward direction graphitizing furnace.
8. the production technology of the special-purpose carbon felt of all-vanadium liquid flow energy storage battery according to claim 7 is characterized in that describedly the carbonization felt being packed into to carry out the graphitization processing step further comprising the steps for graphitizing furnace:
Graphitizing furnace is warming up to 1400 spends also constant temperature maintenance 5 hours; And
Graphitizing furnace is cooled to the following rear carbonization felt that takes out of 50 degree.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586645XA CN102011284B (en) | 2010-12-09 | 2010-12-09 | Special carbon felt production process for vanadium redox battery (VRB) for energy storage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586645XA CN102011284B (en) | 2010-12-09 | 2010-12-09 | Special carbon felt production process for vanadium redox battery (VRB) for energy storage |
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| CN102011284A CN102011284A (en) | 2011-04-13 |
| CN102011284B true CN102011284B (en) | 2013-05-01 |
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| CN201010586645XA Expired - Fee Related CN102011284B (en) | 2010-12-09 | 2010-12-09 | Special carbon felt production process for vanadium redox battery (VRB) for energy storage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103474676B (en) * | 2013-09-05 | 2015-08-26 | 大连理工大学 | Preparation method of skin-core structure graphite felt electrode material |
| FR3042511B1 (en) * | 2015-10-16 | 2018-04-20 | Hexcel Reinforcements | LOW GRAMMING NEEDLE FABRIC, MANUFACTURING METHOD THEREOF AND USE THEREOF IN A DIFFUSION LAYER FOR A FUEL CELL |
| CN107134582B (en) * | 2017-06-05 | 2021-04-06 | 上海骐杰碳素材料有限公司 | High-activity electrode material and modification method thereof |
| CN111244489B (en) * | 2018-11-28 | 2020-12-15 | 中国科学院大连化学物理研究所 | Application of an electrode material in zinc-bromine single-flow battery |
| CN110565266A (en) * | 2019-09-17 | 2019-12-13 | 大同新成新材料股份有限公司 | Preparation method of hard carbon felt |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1603448A (en) * | 2004-09-07 | 2005-04-06 | 上海大学 | Preparation method of carbon-carbon preform for carbon-carbon/aluminum composite material |
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| CN1603448A (en) * | 2004-09-07 | 2005-04-06 | 上海大学 | Preparation method of carbon-carbon preform for carbon-carbon/aluminum composite material |
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