CN102011284A - 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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- CN102011284A CN102011284A CN201010586645XA CN201010586645A CN102011284A CN 102011284 A CN102011284 A CN 102011284A CN 201010586645X A CN201010586645X A CN 201010586645XA CN 201010586645 A CN201010586645 A CN 201010586645A CN 102011284 A CN102011284 A CN 102011284A
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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
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, the production technology of the special-purpose carbon felt of particularly 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 obviously technical advantage such as frequent high current charge-discharge.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 electric power peak load shifting.
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 the system method " 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 suspension is got 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, 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: polypropylene nitrile fiber 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.The described step that polypropylene nitrile fiber is made white dull and stereotyped felt further may further comprise the steps: with polypropylene nitrile fiber through cross lapping after the combing; Fiber web is carried out drawing-off through the multiple roll drawing machine; Fiber web after the drawing-off is made felt through pre-needling and main acupuncture; And felt is put into the press inlet 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 steel pipe folding.
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, in carbonization forward direction carbide furnace, feed the high pure nitrogen protection at the dull and stereotyped felt of described white.
Preferably, the dull and stereotyped felt of described white carries out the pre-oxidation treatment step at pre-oxidation furnace and further may further comprise the steps: 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 technology: the carbonization felt graphitizing furnace of packing into is carried out graphitization processing.
Preferably, the carbonization felt graphitizing furnace of packing into is carried out in the graphitization processing step, in graphitization forward direction graphitizing furnace, feed argon shield described.
Preferably, described the carbonization felt graphitizing furnace of packing into is carried out the graphitization processing step and further may further comprise the steps: graphitizing furnace is warming up to 1400 degree and constant temperature kept 5 hours; And take out the carbonization felt after being cooled to carbide 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 technology of dull and stereotyped felt, make the flatness of the dull and stereotyped felt that obtains better, thereby make the flatness of final finished improve greatly.
[specific embodiment]
For understanding the present invention better, invention is described in detail below with reference to instantiation.
As mentioned before, for solving the problem that extension system method exists, my company has improved the technology 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 polypropylene nitrile fiber to make white dull and stereotyped felt through the felt workshop:
With cross lapping after the combing of polypropylene nitrile fiber process; Fiber web is carried out drawing-off through the multiple roll drawing machine; Fiber web after the drawing-off is made felt through pre-needling and main acupuncture; Felt is put into the press inlet of adjusting thickness and speed to plate.
Through after the above-mentioned processing, it is 1.43-1.48g/cm that polypropylene nitrile fiber 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 steel pipe folding, 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 technology the inflammable white felt of polypropylene nitrile fiber become nonflammable pre-oxidation felt.3, pre-oxygen is good pre-oxygen felt 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 back of 30 degree takes out the carbonization felt.
Temperature-rise period complexity in the above-mentioned carbonisation must strictly be controlled heating curve, guarantees the 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, feed argon shield; Graphitizing furnace is warming up to 1400 spends also constant temperature maintenance 5 hours; Carbide furnace is cooled to the following back of 50 degree takes out the carbonization felt.
Heating curve is followed in strictness in the above-mentioned graphitizing process, once more the carbon felt is carried out the separation and the conversion of each trace element in graphitizing process, and temperature 300 during from initial 1-2 hour degree is fired maximum temperature 1400 degree.
Through after the above-mentioned complete technology, the production of the special-purpose carbon felt of full vanadium liquid energy-storage battery finishes.Each trace element reaches as shown in the table respectively in the qualified products:
Annotate: N.D=does not test out (less than detection limit); Ppm=mg/kg=a few millionths.
At last, carry out quality examination with producing the special-purpose carbon felt of good full vanadium liquid energy-storage battery, as meet above-mentioned standard duty for qualified, enter packing shop, the cleaning surface dirt is rolled into package and goes into the carton warehouse-in.
Because the difference of production technology, directly influence content of elements and distribution in the product carbon felt, especially as the every index strictness of vanadium liquid storage battery of the special-purpose carbon felt of full vanadium liquid energy-storage battery of new forms of energy, each micro-deviation is minimum, and product quality is most important.Characteristics such as the special-purpose carbon felt of the full vanadium liquid energy-storage battery that above-mentioned explained hereafter goes out has that conductance is stable, the good density of liquid stream trafficability characteristic is little, even structure, not stratified, good integrity, no carbon black.
Above-mentioned technology has solved problems such as the prepared product pattern of traditional extension system method is poor, waste is many, density unevenness is even, special, the suitable industrialization production of project technology of technology simultaneously.
The above exemplifying embodiment has only been expressed part embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
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: polypropylene nitrile fiber 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 the described step that polypropylene nitrile fiber is made white dull and stereotyped felt further may further comprise the steps:
With cross lapping after the combing of polypropylene nitrile fiber process;
Fiber web is carried out drawing-off through the multiple roll drawing machine;
Fiber web after the drawing-off is made felt through pre-needling and main acupuncture; And
Felt is put into the press inlet 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 steel pipe folding.
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, feed 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 and further may further comprise the steps:
Carbide furnace is warming up to 1400 spends also constant temperature maintenance 4 hours; And
Carbide furnace is cooled to the following back of 30 degree takes out the carbonization felt.
6. according to the production technology of the special-purpose carbon felt of each described all-vanadium liquid flow energy storage battery in the claim 1 to 5, it is characterized in that the further following steps of described technology: 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, feed 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 described the carbonization felt graphitizing furnace of packing into being carried out the graphitization processing step and further may further comprise the steps:
Graphitizing furnace is warming up to 1400 spends also constant temperature maintenance 5 hours; And
Carbide furnace is cooled to the following back of 50 degree takes out the carbonization felt.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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 true CN102011284A (en) | 2011-04-13 |
| CN102011284B CN102011284B (en) | 2013-05-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474676A (en) * | 2013-09-05 | 2013-12-25 | 大连理工大学 | Method for preparing graphite felt electrode material with skin-core structure |
| CN107134582A (en) * | 2017-06-05 | 2017-09-05 | 上海骐杰碳素材料有限公司 | A kind of high activity electrode material and its method of modifying |
| CN108884606A (en) * | 2015-10-16 | 2018-11-23 | 赫克赛尔加固材料公司 | Lightweight needle punched fabric and its manufacturing method and its purposes in the diffusion layer of fuel cell |
| 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 |
| CN111244489A (en) * | 2018-11-28 | 2020-06-05 | 中国科学院大连化学物理研究所 | Application of electrode material in zinc-bromine single flow battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603448A (en) * | 2004-09-07 | 2005-04-06 | 上海大学 | Process for preparing carbon-carbon precast member for carbon-carbon/aluminium composite material |
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- 2010-12-09 CN CN201010586645XA patent/CN102011284B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603448A (en) * | 2004-09-07 | 2005-04-06 | 上海大学 | Process for preparing carbon-carbon precast member for carbon-carbon/aluminium composite material |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474676A (en) * | 2013-09-05 | 2013-12-25 | 大连理工大学 | Method for preparing graphite felt electrode material with skin-core structure |
| CN103474676B (en) * | 2013-09-05 | 2015-08-26 | 大连理工大学 | The preparation method of graphite felt electrode material with skin-core structure |
| CN108884606A (en) * | 2015-10-16 | 2018-11-23 | 赫克赛尔加固材料公司 | Lightweight needle punched fabric and its manufacturing method and its purposes in the diffusion layer of fuel cell |
| CN107134582A (en) * | 2017-06-05 | 2017-09-05 | 上海骐杰碳素材料有限公司 | A kind of high activity electrode material and its method of modifying |
| 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 |
| CN111244489A (en) * | 2018-11-28 | 2020-06-05 | 中国科学院大连化学物理研究所 | Application of electrode material in zinc-bromine single flow battery |
| CN111244489B (en) * | 2018-11-28 | 2020-12-15 | 中国科学院大连化学物理研究所 | Application of 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 |
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Granted publication date: 20130501 Termination date: 20131209 |