CN102044345A - Preparation method of active carbon electrode for double electric layer capacitor - Google Patents
Preparation method of active carbon electrode for double electric layer capacitor Download PDFInfo
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- CN102044345A CN102044345A CN2009101970220A CN200910197022A CN102044345A CN 102044345 A CN102044345 A CN 102044345A CN 2009101970220 A CN2009101970220 A CN 2009101970220A CN 200910197022 A CN200910197022 A CN 200910197022A CN 102044345 A CN102044345 A CN 102044345A
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Abstract
The invention relates to a chemical power source product, aiming at providing a preparation method of an active carbon electrode for a double electric layer capacitor. The preparation method is characterized by comprising the following steps: 1. filling binder into solvent, and fully stirring until the mixture is dissolved evenly; 2. after the active carbon and conductive agent powder are mixed, pouring into a binder solution, and fully mixing until even active carbon sizing agent is formed; and 3. evenly coating the active carbon sizing agent on a metallic matrix, drying and pressing to form the active carbon electrode. The active carbon electrode prepared by the method has the advantages of good aridity, small internal resistance, stable performance, long cycle life and the like.
Description
Technical field
The present invention relates to the chemical power source product, particularly a kind of double electric layer capacitor preparation method of activated carbon electrodes.
Background technology
Double electric layer capacitor is a kind of in the electrochemical capacitor (claiming ultracapacitor again).Quick, reversible electric charge absorption/desorption process takes place by the surface at the high-specific surface area carbon electrode and carries out the storage and the release of energy in double electric layer capacitor, its energy density is 10～100 times of traditional electrostatic condenser, and power density is 10～100 times of battery.Double electric layer capacitor is specially adapted to short time high power output occasion with its distinctive performance advantage, will be widely used in fields such as locomotive startup, UPS, energy recuperation, laser weapon, magnetic artillery.
The electrode of double electric layer capacitor has carbon fiber electrode, activated carbon electrodes, carbon silica aerogel electrode etc.The preparation method of electrode is at present: the electrode material surface in moulding is sprayed conducting metal (as: aluminium, nickel, gold, silver etc.).But there are shortcomings such as performance less stable, cycle life are not long in the electrode that adopts this method more.
Summary of the invention
The present invention aims to provide the preparation method of a kind of double electric layer capacitor with activated carbon electrodes.
The technical scheme that technical solution problem of the present invention is adopted is:
A kind of double electric layer capacitor preparation method of activated carbon electrodes, it is characterized in that: this activated carbon electrodes is made of active carbon, conductive agent, binding agent, solvent and metallic matrix; Its preparation process is: (1) places solvent with binding agent, fully stirs until dissolving evenly; (2) with active carbon and conductive agent powder mixed after, pour in the binder solution, fully stir up to forming uniform active carbon slurry; (3) the active carbon slurry is coated on the metallic matrix uniformly, to be dried after, compacting forms activated carbon electrodes.
The specific area of described absorbent charcoal material is 300～3000m
2/ g, granularity is 5～50 μ m, tap density is 0.3～1.0g/cm
3, conductive agent is wherein one or more such as graphite, carbon black, carbon fiber, carbon nano-tube.Binding agent is wherein one or more such as polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), poly-(vinylidene fluoride-hexafluoropropylene) copolymer (PVDF-HFP), sodium carboxymethylcellulose (CMC), polyvinyl alcohol (PVA), carboxy styrene-butadiene rubber (SBR).Solvent is wherein one or more such as N-methyl pyrrolidone, ethanol, propyl alcohol, isopropyl alcohol, acetone, oxolane, water.
Described coating process is spraying process or rolling method.
The activated carbon electrodes that adopts the method for the invention preparation has, and but drying property is good, internal resistance is little, stable performance, characteristics such as have extended cycle life.
Description of drawings
Fig. 1 is the structural representation of activated carbon electrodes of the present invention.
The double electric layer capacitor internal structure schematic diagram of Fig. 2 for adopting activated carbon electrodes of the present invention to make.
Fig. 3 is the constant current charge-discharge curve of the double electric layer capacitor of employing activated carbon electrodes making of the present invention.
Fig. 4 is the cycle life curve of the double electric layer capacitor of employing activated carbon electrodes making of the present invention.
Embodiment
This routine double electric layer capacitor is made of absorbent charcoal material, conductive agent, binding agent, solvent and metallic matrix with activated carbon electrodes.The absorbent charcoal material specific area that it adopts is 300～3000m
2/ g, granularity is 5～50 μ m, tap density is 0.3～1.0g/cm
3, conductive agent is wherein one or more such as graphite, carbon black, carbon fiber, carbon nano-tube.Binding agent is wherein one or more such as polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), poly-(vinylidene fluoride-hexafluoropropylene) copolymer (PVDF-HFP), sodium carboxymethylcellulose (CMC), polyvinyl alcohol (PVA), carboxy styrene-butadiene rubber (SBR).Solvent is wherein one or more such as N-methyl pyrrolidone, ethanol, propyl alcohol, isopropyl alcohol, acetone, oxolane, water.
This routine double electric layer capacitor the steps include: that with the preparation method of activated carbon electrodes (1) places solvent with binding agent, fully stirs until dissolving evenly; (2) with active carbon and conductive agent powder mixed after, pour in the binder solution, fully stir up to forming uniform active carbon slurry 2; (3) the active carbon slurry is coated on the metallic matrix 1 uniformly, to be dried after, compacting forms activated carbon electrodes.The coating process that adopts is spraying process or rolling method.
Adopt the electrode of method for preparing to be this routine double electric layer capacitor activated carbon electrodes.Its structural representation as shown in Figure 1.
Adopt this routine activated carbon electrodes to make double electric layer capacitor.Concrete grammar is: the activated carbon electrodes stamping-out of making is become required size, as positive/negative plate, adopt the TF series barrier film 3 of NKK, adopt the Et of 1.0～1.5mol/L
4NBF
4/ AN solution is assembled into double electric layer capacitor as electrolyte in drying shed or glove box.Its internal structure schematic diagram as shown in Figure 2.
Test result shows, but adopts that the activated carbon electrodes of this method preparation has that drying property is good, internal resistance is little, stable performance, characteristics such as have extended cycle life.
The test result of Fig. 3 shows, adopts the double electric layer capacitor of this activated carbon electrodes assembling, and the charging and discharging curve under 2.5A is almost straight line, and its capacity reaches about 300F.
The test result of Fig. 4 shows that through the circulation of 50000 cycles, the capacity of double electric layer capacitor remains on more than 90% of initial capacity.
Claims (8)
1. a double electric layer capacitor is with the preparation method of activated carbon electrodes, and it is characterized in that: activated carbon electrodes is made of absorbent charcoal material, conductive agent, binding agent, solvent and metallic matrix; Its preparation process is:
Step 1, binding agent is placed solvent, fully stir evenly until dissolving; Step 2, with active carbon and conductive agent powder mixed after, pour in the binder solution, fully stir up to forming uniform active carbon slurry; Step 3, the active carbon slurry is coated on the metallic matrix uniformly, to be dried after, compacting forms activated carbon electrodes.
2. a kind of double electric layer capacitor as claimed in claim 1 preparation method of activated carbon electrodes, it is characterized in that: the specific area of described absorbent charcoal material is 300～3000m
2/ g.
3. a kind of double electric layer capacitor as claimed in claim 1 preparation method of activated carbon electrodes, it is characterized in that: the granularity of described absorbent charcoal material is 5～50 μ m.
4. a kind of double electric layer capacitor as claimed in claim 1 preparation method of activated carbon electrodes, it is characterized in that: the tap density of described absorbent charcoal material is 0.3～1.0g/cm
3
5. a kind of double electric layer capacitor as claimed in claim 1 is characterized in that with the preparation method of activated carbon electrodes: described conductive agent is wherein one or more such as graphite, carbon black, carbon fiber, carbon nano-tube.
6. a kind of double electric layer capacitor as claimed in claim 1 is characterized in that with the preparation method of activated carbon electrodes: described binding agent is that polytetrafluoroethylene is that PTFE, polyvinylidene fluoride are that PVDF, polyvinylidene fluoride-hexafluoropropylene copolymer are that PVDF-HFP, sodium carboxymethylcellulose are that CMC, polyvinyl alcohol are that PVA, carboxy styrene-butadiene rubber are wherein one or more such as SBR.
7. a kind of double electric layer capacitor as claimed in claim 1 is characterized in that with the preparation method of activated carbon electrodes: described solvent is wherein one or more such as N-methyl pyrrolidone, ethanol, propyl alcohol, isopropyl alcohol, acetone, oxolane, water.
8. the preparation method of activated carbon electrodes as claimed in claim 1, it is characterized in that: coating process is spraying process or rolling method.
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| CN2009101970220A CN102044345A (en) | 2009-10-13 | 2009-10-13 | Preparation method of active carbon electrode for double electric layer capacitor |
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| CN2009101970220A CN102044345A (en) | 2009-10-13 | 2009-10-13 | Preparation method of active carbon electrode for double electric layer capacitor |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102683043A (en) * | 2012-03-28 | 2012-09-19 | 长沙海密特新能源科技有限公司 | Super-capacitor pole piece with low internal resistance and manufacturing method thereof |
| CN102683034A (en) * | 2012-04-28 | 2012-09-19 | 中国科学院电工研究所 | Method for preparing super capacitor electrode plate |
| CN102789905A (en) * | 2011-05-18 | 2012-11-21 | 深圳振华富电子有限公司 | Preparation process and application of electrode plate |
| CN102881909A (en) * | 2011-07-13 | 2013-01-16 | 北京林业大学 | Defluorination carbon electrode and its preparation method |
| CN103198935A (en) * | 2013-04-18 | 2013-07-10 | 山东大学 | Preparation method of graphene sheet modified spinel type lithium manganate or alpha type manganese dioxide electrode |
| 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 |
| CN104112605A (en) * | 2014-07-30 | 2014-10-22 | 万裕三信电子(东莞)有限公司 | Electrode plate, manufacturing method thereof, supercapacitor and manufacturing method thereof |
| CN104335308A (en) * | 2012-03-27 | 2015-02-04 | 约翰逊控制技术公司 | Capacitor electrodes for lead-acid battery with surface-modified additives |
| CN105070519A (en) * | 2015-09-08 | 2015-11-18 | 上海空间电源研究所 | High-specific-energy super capacitor negative pole sheet and preparation method thereof |
| CN105070516A (en) * | 2015-09-08 | 2015-11-18 | 上海空间电源研究所 | High-specific-energy super capacitor positive pole sheet and preparation method thereof |
| CN105097136A (en) * | 2015-09-02 | 2015-11-25 | 陈曦 | Preparation method of activated carbon electrode |
| CN103971952B (en) * | 2014-04-16 | 2016-08-24 | 山东精工电子科技有限公司 | A kind of preparation method of carbon film |
| CN108470639A (en) * | 2018-04-04 | 2018-08-31 | 中国科学院兰州化学物理研究所 | The ultracapacitor of low-temperature working |
| CN108630460A (en) * | 2018-04-04 | 2018-10-09 | 中国科学院兰州化学物理研究所 | Color function type ultracapacitor |
| CN115259307A (en) * | 2022-09-01 | 2022-11-01 | 沈阳工业大学 | Preparation method of ion exchange gel electrode for capacitive deionization technology |
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| CN101218174A (en) * | 2005-09-29 | 2008-07-09 | 昭和电工株式会社 | Activated carbon and process of making the same |
| CN101283420A (en) * | 2005-10-11 | 2008-10-08 | 昭和电工株式会社 | Electricity collection body for electric double layer capacitor, electrode for electric double layer capacitor, and electric double layer capacitor as well as manufacturing method thereof |
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Cited By (21)
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| CN102789905A (en) * | 2011-05-18 | 2012-11-21 | 深圳振华富电子有限公司 | Preparation process and application of electrode plate |
| CN102789905B (en) * | 2011-05-18 | 2015-11-04 | 深圳振华富电子有限公司 | Electrode slice preparation method and application |
| CN102881909A (en) * | 2011-07-13 | 2013-01-16 | 北京林业大学 | Defluorination carbon electrode and its preparation method |
| CN102881909B (en) * | 2011-07-13 | 2015-02-04 | 北京林业大学 | Defluorination carbon electrode and its preparation method |
| 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 |
| CN104335308B (en) * | 2012-03-27 | 2019-03-08 | 约翰逊控制技术公司 | The electrode for capacitors with surface modified additive for lead-acid battery |
| CN104335308A (en) * | 2012-03-27 | 2015-02-04 | 约翰逊控制技术公司 | Capacitor electrodes for lead-acid battery with surface-modified additives |
| CN102683043A (en) * | 2012-03-28 | 2012-09-19 | 长沙海密特新能源科技有限公司 | Super-capacitor pole piece with low internal resistance and manufacturing method thereof |
| CN102683034B (en) * | 2012-04-28 | 2015-03-25 | 中国科学院电工研究所 | Method for preparing super capacitor electrode plate |
| CN102683034A (en) * | 2012-04-28 | 2012-09-19 | 中国科学院电工研究所 | Method for preparing super capacitor electrode plate |
| CN103198935A (en) * | 2013-04-18 | 2013-07-10 | 山东大学 | Preparation method of graphene sheet modified spinel type lithium manganate or alpha type manganese dioxide electrode |
| 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 |
| CN103971952B (en) * | 2014-04-16 | 2016-08-24 | 山东精工电子科技有限公司 | A kind of preparation method of carbon film |
| CN104112605A (en) * | 2014-07-30 | 2014-10-22 | 万裕三信电子(东莞)有限公司 | Electrode plate, manufacturing method thereof, supercapacitor and manufacturing method thereof |
| CN105097136A (en) * | 2015-09-02 | 2015-11-25 | 陈曦 | Preparation method of activated carbon electrode |
| CN105070519A (en) * | 2015-09-08 | 2015-11-18 | 上海空间电源研究所 | High-specific-energy super capacitor negative pole sheet and preparation method thereof |
| CN105070516A (en) * | 2015-09-08 | 2015-11-18 | 上海空间电源研究所 | High-specific-energy super capacitor positive pole sheet and preparation method thereof |
| CN108470639A (en) * | 2018-04-04 | 2018-08-31 | 中国科学院兰州化学物理研究所 | The ultracapacitor of low-temperature working |
| CN108630460A (en) * | 2018-04-04 | 2018-10-09 | 中国科学院兰州化学物理研究所 | Color function type ultracapacitor |
| CN115259307A (en) * | 2022-09-01 | 2022-11-01 | 沈阳工业大学 | Preparation method of ion exchange gel electrode for capacitive deionization technology |
| CN115259307B (en) * | 2022-09-01 | 2023-10-31 | 沈阳工业大学 | Preparation method of ion exchange gel electrode for capacitive deionization technology |
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Application publication date: 20110504 |