CN103400705A - Preparation method for slurry of super capacitor - Google Patents
Preparation method for slurry of super capacitor Download PDFInfo
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- CN103400705A CN103400705A CN2013102253467A CN201310225346A CN103400705A CN 103400705 A CN103400705 A CN 103400705A CN 2013102253467 A CN2013102253467 A CN 2013102253467A CN 201310225346 A CN201310225346 A CN 201310225346A CN 103400705 A CN103400705 A CN 103400705A
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- slurry
- super capacitor
- emulsification
- preparation
- mulser
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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
- Y02E60/13—Energy storage using capacitors
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- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention relates to a preparation method for slurry of a super capacitor. The method comprises the steps of a) initial slurry preparation, wherein active carbon, conductive carbon, binder and solvent are placed in a double-planet mixer with a constant temperature system and stirred and mixed for 0.5 to 5 hours; b) slurry emulsification, wherein the prepared initial slurry is transferred into an emulsifying machine for emulsification; and c) vacuum bubble removal, wherein the emulsified slurry is transferred into a turnover tank with a rotating disk to carry out vacuum bubble removal. The preparation method for the slurry of the super capacitor can uniformly mix different substances in the super capacitor, is excellent in uniformity and high in stability, is not likely to be layered, and is free of bubbles.
Description
Technical field
The present invention relates to a kind of preparation method of slurry, relate in particular to a kind of preparation method of super capacitor slurry.
Background technology
Ultracapacitor is a kind of Novel energy storage apparatus between traditional capacitor and secondary cell that occurs in recent years, it is when keeping the large characteristics of traditional capacitor power density, have and can reach the even static capacity of up to ten thousand farads of farad level, so it has the higher characteristics of energy density.Also have simultaneously that but fast charging and discharging, energy conversion efficiency are high, good temp characteristic (40 ℃ ~ 70 ℃), service life cycle is long and the advantage such as environmental protection, thereby its technology has been subject to the generally attention of countries in the world, can be widely used in wind power generation, solar power generation, number, automobile, medical treatment, health, power electronics, communication, the energy, the field such as military.
In recent years, the manufacturing technology of ultracapacitor makes great progress, but with regard to the preparation technology of slurry, most of companies are all continuing to use traditional preparation technology, first binding agent and stirring solvent are played glue, then add the mixture of active carbon and conductive carbon to stir for a long time in the colloid of preparation, vacuumize bubble removing after stirring and make slurry.Adopt the various raw material of slurry of this process preparation type that is uniformly dispersed bad, because the existence of the small particle diameter raw materials such as active carbon and conductive carbon makes in slurry a lot of reunion bulky grains that adulterated, and there are a lot of bubbles in slurry, stability is also bad, and slurry is placed after a period of time the shortcomings such as easily layering.Thereby make the ultracapacitor product that adopts this slurry preparation have the bulky grain saturating barrier film of thorn on pole piece and short circuit is scrapped, reduced conforming product rate; The active material skewness, cause each capacity of super capacitor height different, and the homogeneity of ultracapacitor is caused great impact, thereby the use that has affected ultracapacitor is promoted.
Summary of the invention
The purpose of this invention is to provide a kind of various materials in ultracapacitor can being mixed uniformly, have good uniformity, stability is high, is difficult for layering, without the preparation method of the super capacitor slurry of bubble slurry.
For achieving the above object, the technical solution used in the present invention is:
1, the preparation method of super capacitor slurry, is characterized in that comprising the steps:
A) initial slurry preparation, put into active carbon, conductive carbon, binding agent and solvent in double-planet mixer with constant temperature system and be uniformly mixed 0.5 ~ 5 hour;
B) slurry emulsification, be transferred to emulsification in mulser with the initial slurry for preparing;
C) froth in vacuum, the slurry that emulsification is good change in turnover tank body with rotating disk, vacuumize bubble removing and process.
2, method for preparing super capacitor slurry according to claim 1, is characterized in that, the mulser that is used for slurry emulsification is high shearing mixing emulsor.
3, method for preparing super capacitor slurry according to claim 2, is characterized in that, the technological parameter of described mulser in the slurry emulsion process is: rotating speed is 500 ~ 5000rpm, and shearing and grinding gap is 0.01mm ~ 2mm.
4, method for preparing super capacitor slurry according to claim 3, is characterized in that, emulsification is once at least in slurry emulsification.
5, method for preparing super capacitor slurry according to claim 4 is characterized in that: described planetary stirring machine, mulser and non-conservation tank are provided with constant temperature system, and the temperature range of setting is 15 ~ 50 ℃.
6, method for preparing super capacitor slurry claimed in claim 5 is characterized in that: the range of viscosities of the slurry after described emulsification is 1800-35000cp.
Advantageous effect of the present invention is: the super capacitor slurry of the inventive method preparation not only can shorten the time of slurry preparation greatly, and homogeneity and stability that slurry disperses have lifting greatly, use the property indices of the ultracapacitor finished product of this kind slurry preparation that significantly lifting is arranged, the micro-short circuit phenomenon of product also is improved.
Embodiment
The invention will be further described below in conjunction with specific embodiment:
Embodiment 1
Proportioning according to active carbon 90%, conductive black 5%, PTFE binding agent 5%, active carbon 900g, conductive black 30g, PTFE binding agent 50g are joined in 2000g solvent NMP, above-mentioned substance is put into stirring 0.5h in double-planet formula mixer be prepared into initial slurry, change initial slurry over to rotating speed 1000rpm, shear and grind emulsification in the mulser that gap is 0.03mm, emulsification once, prepare the super capacitor slurry of stable, the homogeneous of viscosity 15000cp, changing slurry over to non-conservation tank, to vacuumize bubble removing processing etc. to be coated.
Embodiment 2
Proportioning according to active carbon 90%, conductive black 5%, PTFE binding agent 5%, active carbon 900g, conductive black 50g, PTFE binding agent 50g are joined in 2000g solvent NMP, above-mentioned substance is put into stirring 1h in double-planet formula mixer be prepared into initial slurry, change initial slurry over to rotating speed 1200rpm, shear and grind emulsification in the mulser that gap is 0.05mm, the emulsification secondary, prepare the super capacitor slurry of stable, the homogeneous of viscosity 10000cp, changing slurry over to non-conservation tank, to vacuumize bubble removing processing etc. to be coated.
Embodiment 3
Proportioning according to active carbon 90%, conductive black 5%, PTFE binding agent 5%, active carbon 900g, conductive black 50g, PTFE binding agent 50g are joined in 2000g solvent NMP, above-mentioned substance is put into stirring 0.5h in double-planet formula mixer be prepared into initial slurry, change initial slurry over to rotating speed 800rpm, shear and grind emulsification in the mulser that gap is 0.02mm, emulsification five times, prepare the super capacitor slurry of stable, the homogeneous of viscosity 8000cp, changing slurry over to non-conservation tank, to vacuumize bubble removing processing etc. to be coated.
The slurry that uses preparation method of the present invention to make is coated on collector, be prepared into the pole piece of electrode of super capacitor, through roll-in, cut after with positive plate, negative plate, the diaphragm paper coiling heart, wherein, diaphragm paper between positive plate and negative plate, is put into the ultracapacitor shell with battery core, injects electrolyte, sealing, be prepared into ultracapacitor.
Slurry emulsification refers to utilize the comprehensive functions such as the mechanical shear stress of high shearing mixing emulsor, centrifugal extruding, liquid layer friction, high-speed impact and turbulent flow to make the abundant dispersion of slurry uniform, fine and obtains stable high-quality slurry.The effects such as the shearing force in emulsion process, friction, shock are broken the agglomerated particle that in the batch mixing process, active carbon and conductive carbon form, improved the surface property of electrode material, reduced the grain graininess of electrode material, improve simultaneously uniformity and the consistency of slurry, and then improved consistency and the qualification rate of ultracapacitor product.
Claims (6)
1. the preparation method of a super capacitor slurry, is characterized in that comprising the steps:
A) initial slurry preparation, put into active carbon, conductive carbon, binding agent and solvent in double-planet mixer with constant temperature system and be uniformly mixed 0.5 ~ 5 hour;
B) slurry emulsification, be transferred to emulsification in mulser with the initial slurry for preparing;
C) froth in vacuum, the slurry that emulsification is good change in turnover tank body with rotating disk, vacuumize bubble removing and process.
2. method for preparing super capacitor slurry according to claim 1, is characterized in that, the mulser that is used for slurry emulsification is high shearing mixing emulsor.
3. method for preparing super capacitor slurry according to claim 2, is characterized in that, the technological parameter of described mulser in the slurry emulsion process is: rotating speed is 500 ~ 5000rpm, and shearing and grinding gap is 0.01mm ~ 2mm.
4. method for preparing super capacitor slurry according to claim 3, is characterized in that, slurry emulsification can be at least one times.
5. method for preparing super capacitor slurry according to claim 4, it is characterized in that: described planetary stirring machine, mulser and non-conservation tank are provided with constant temperature system, and the temperature range of setting is 15 ~ 50 ℃.
6. method for preparing super capacitor slurry according to claim 5, it is characterized in that: the range of viscosities of the slurry after described emulsification is 1800-35000cp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102253467A CN103400705A (en) | 2013-06-07 | 2013-06-07 | Preparation method for slurry of super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102253467A CN103400705A (en) | 2013-06-07 | 2013-06-07 | Preparation method for slurry of super capacitor |
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| CN103400705A true CN103400705A (en) | 2013-11-20 |
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| CN2013102253467A Pending CN103400705A (en) | 2013-06-07 | 2013-06-07 | Preparation method for slurry of super capacitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811197A (en) * | 2014-02-26 | 2014-05-21 | 上海宝聚新化能源科技有限公司 | Manufacturing method of super capacitor |
| CN104064374A (en) * | 2014-07-02 | 2014-09-24 | 长沙国容新能源有限公司 | Slurry mixing method during manufacture process of capacitor electrode and use method of manufactured slurry |
| CN105551821A (en) * | 2015-12-16 | 2016-05-04 | 山东精工电子科技有限公司 | Preparation method of super capacitor slurry |
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| CN1990097A (en) * | 2005-12-28 | 2007-07-04 | 比亚迪股份有限公司 | Mixing method of electrode slurry |
| US20070274023A1 (en) * | 2003-10-24 | 2007-11-29 | Zeon Corporation | Binder for Electric Double Layer Capacitor Electrode |
| US20080030924A1 (en) * | 2004-06-22 | 2008-02-07 | Zeon Corporation | Electrode Material for Electric Double Layer Capacitor and Process for Producing the Same |
| CN101710537A (en) * | 2009-12-09 | 2010-05-19 | 上海奥威科技开发有限公司 | Electrode for super capacitor and manufacturing method thereof |
| CN102496476A (en) * | 2011-11-16 | 2012-06-13 | 山东精工电子科技有限公司 | Super capacitor slurry and preparation method thereof |
| CN102637531A (en) * | 2012-03-20 | 2012-08-15 | 深圳市今朝时代新能源技术有限公司 | Electrode of supercapacitor, preparation method of electrode and preparation method of slurry of electrode |
| CN102886156A (en) * | 2011-07-20 | 2013-01-23 | 深圳市比克电池有限公司 | Slurry bubble deaeration device and method |
| CN203232813U (en) * | 2013-04-29 | 2013-10-09 | 山东精工电子科技有限公司 | Turnover pot for slurry of capacitor |
-
2013
- 2013-06-07 CN CN2013102253467A patent/CN103400705A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070274023A1 (en) * | 2003-10-24 | 2007-11-29 | Zeon Corporation | Binder for Electric Double Layer Capacitor Electrode |
| US20080030924A1 (en) * | 2004-06-22 | 2008-02-07 | Zeon Corporation | Electrode Material for Electric Double Layer Capacitor and Process for Producing the Same |
| CN1990097A (en) * | 2005-12-28 | 2007-07-04 | 比亚迪股份有限公司 | Mixing method of electrode slurry |
| CN101710537A (en) * | 2009-12-09 | 2010-05-19 | 上海奥威科技开发有限公司 | Electrode for super capacitor and manufacturing method thereof |
| CN102886156A (en) * | 2011-07-20 | 2013-01-23 | 深圳市比克电池有限公司 | Slurry bubble deaeration device and method |
| CN102496476A (en) * | 2011-11-16 | 2012-06-13 | 山东精工电子科技有限公司 | Super capacitor slurry and preparation method thereof |
| CN102637531A (en) * | 2012-03-20 | 2012-08-15 | 深圳市今朝时代新能源技术有限公司 | Electrode of supercapacitor, preparation method of electrode and preparation method of slurry of electrode |
| CN203232813U (en) * | 2013-04-29 | 2013-10-09 | 山东精工电子科技有限公司 | Turnover pot for slurry of capacitor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811197A (en) * | 2014-02-26 | 2014-05-21 | 上海宝聚新化能源科技有限公司 | Manufacturing method of super capacitor |
| CN104064374A (en) * | 2014-07-02 | 2014-09-24 | 长沙国容新能源有限公司 | Slurry mixing method during manufacture process of capacitor electrode and use method of manufactured slurry |
| CN105551821A (en) * | 2015-12-16 | 2016-05-04 | 山东精工电子科技有限公司 | Preparation method of super capacitor slurry |
| CN105551821B (en) * | 2015-12-16 | 2019-04-02 | 山东精工电子科技有限公司 | The preparation method of super capacitor slurry |
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Application publication date: 20131120 |