CN105355470A - Preparation method for ultrathin lithium titanate electrode - Google Patents
Preparation method for ultrathin lithium titanate electrode Download PDFInfo
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- CN105355470A CN105355470A CN201510939833.9A CN201510939833A CN105355470A CN 105355470 A CN105355470 A CN 105355470A CN 201510939833 A CN201510939833 A CN 201510939833A CN 105355470 A CN105355470 A CN 105355470A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
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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
Abstract
The invention specifically relates to a preparation method for an ultrathin lithium titanate electrode, particularly relates to a preparation method for an ultrathin lithium titanate electrode for a hybrid supercapacitor, and belongs to the technical field of supercapacitors. The method comprises the following steps: according to ratio, weighing 80-92% of a negative lithium titanate material, 5-15% of a conductive agent and 3-10% of a binder, and mixing the materials to obtain mixture powder; adding the mixture powder into a powder feeding device, performing electrode spraying by adopting an electrostatic powder spraying method so that the powder is uniformly adsorbed to a current collector, and heating for curing; and finally grinding to obtain the ultrathin lithium titanate electrode. The preparation method for the ultrathin lithium titanate electrode is simple in spraying process, fast and high in efficiency; the utilization rate of the powder is high, the waste of energy is avoided, and simultaneously the surface particle distribution of the ultrathin lithium titanate electrode is uniform. A negative electrode is used in a hybrid capacitor, so that the hybrid capacitor has the relatively high capacity and relatively high stability.
Description
Technical field
The present invention is specifically related to a kind of preparation method of ultra-thin metatitanic acid lithium electrode, is specifically related to the preparation method of a kind of hybrid super capacitor with ultra-thin metatitanic acid lithium electrode, belongs to supercapacitor technologies field.
Background technology
Ultracapacitor has the features such as power density high (being greater than 1kW/kg), long service life (> 100,000 times) and higher energy density because of it, make it be paid close attention to widely in numerous energy storage devices, be successfully applied to track traffic, hybrid power big bus, heavy-duty machinery, field of wind power generation at present.Although ultracapacitor has outstanding performance in power density and service life cycle, the shortcoming that energy density is on the low side but limits its large-scale application.For this reason, the novel mixed capacitor with double electric layers supercapacitor high power characteristic and lithium ion battery high-energy characteristic becomes research direction.
Mixed capacitor is that battery material and high conductivity capacitance material are carried out product development in the mode of inner " parallel connection ", finally reaches the restriction that overcomes existing double electric layer capacitor energy density and does not need to sacrifice the power density of too many ultracapacitor and the object of cycle life characteristics.At present, the research for mixed capacitor mainly concentrates in the development of negative metal oxide, specifically includes Li
4ti
5o
12, RuO
2, MnO
2, NiO, Co
3o
4deng, wherein Li
4ti
5o
12close to the high coulomb efficiency of 100% during because having a charge and discharge cycles; Be four times in the high theoretical capacity (175mAhg of active carbon
-1); Without the loss of SEI film, without characteristics such as Li dendrite formation and " zero strain " structures, become the study hotspot of super capacitor anode material of new generation.
In mixed capacitor, the optimization of positive and negative pole material proportioning is most important to capacitor Electrochemical Properties, if positive active material is excessive, easily cause electrode slice thickness too thick, active material is easy to peel off thus affects the cyclical stability of capacitor; If when positive active material content is too low, then can not give full play to the theoretical capacity of negative material, cause the capacity of device in unit volume to decline.According to pertinent literature (Chinese science science and technology, 2014,11 (44): 1197-1201, " research of electrical double layer capacitor electrodes balancing technique ", the people such as Ruan Dianbo), when in capacitor, positive pole thickness is 240 μm, capacitor has best cyclical stability.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, provide a kind of preparation process simple, the preparation method of the ultra-thin metatitanic acid lithium electrode that ultrathin electrodes surface particles is evenly distributed.
In order to reach foregoing invention object, the present invention by the following technical solutions: a kind of preparation method of ultra-thin metatitanic acid lithium electrode, described preparation method comprises the steps:
S1, take raw material negative pole lithium titanate material, conductive agent and binding agent in proportion, and raw material is mixed into mixture powder; Wherein the mass percent of negative pole lithium titanate material, conductive agent and binding agent is respectively 80-92%, 5-15% and 3-10%;
S2, join in powder feeder by mixture powder, adopt electrostatic powder spraying method to carry out electrode coating, mixture powder is adsorbed on collector equably, then carrying out being heating and curing forms the negative electrode material of dual coating;
S3, negative electrode material is rolled to obtain ultra-thin lithium titanate anode electrode.
Electrostatic powder spraying is the principle utilizing high-pressure electrostatic corona field, by powder spray on workpiece, because it connects the corona discharge of high voltage negative generation, create intensive negative electrical charge in its vicinity, make negative electrical charge on powder belt, enter the electrostatic field that electric field strength is very high, under the double action of electrostatic force and carrier gas motive force, powder flies to ground connection surface of the work equably and forms thickness uniform dust, then is heating and curing and is converted into durable film.The present invention adopts Powder Electrostatic Coating Technology to prepare negative electrode material, compressed air after purification by mixture from powder feeder when duff pipe delivers to the diversion cup of spray gun, intensive electric charge is produced around it, negative electrical charge on mixture powder band, under electrostatic field and compressed-air actuated effect, powder is adsorbed on collector equably, the negative electrode material of the uniformly continous that undertaken being heating and curing, being formed by dry heat system afterwards.
In the preparation method of above-mentioned a kind of ultra-thin metatitanic acid lithium electrode, as preferably, the conductive agent described in step S1 is one or more of conductive black, Graphene, carbon nano-tube or carbon nano-fiber.
In the preparation method of above-mentioned a kind of ultra-thin metatitanic acid lithium electrode, as preferably, the binding agent described in step S1 is one or more in polytetrafluoroethylene, butadiene-styrene rubber, acrylic resin, Kynoar.
In the preparation method of above-mentioned a kind of ultra-thin metatitanic acid lithium electrode, as preferably, the electrostatic pressure in step S2 during electrostatic powder spraying is 40-80kV.The size of electrostatic pressure affects the thickness of coating electrode, if electrostatic pressure is too high, then thickness of electrode can be caused too thick.
In the preparation method of above-mentioned a kind of ultra-thin metatitanic acid lithium electrode, as preferably, to be thickness the be corrosive aluminum foil of 20-40 μm of the collector described in step S2.Through constantly testing discovery, if the thickness of collector is lower than 18 μm, the toughness of collector is poor, easily ruptures in preparation process; If the thickness of collector is greater than 40 μm, not only increase the weight of electrode integral, also have a strong impact on the performance of product, especially affect the specific energy of product, specific power etc.
In the preparation method of above-mentioned a kind of ultra-thin metatitanic acid lithium electrode, as preferably, be heating and curing and carry out in three stages in step S2, the temperature of first stage is 82-88 DEG C, and the temperature of second stage is 89-92 DEG C, and the temperature of phase III is 98-103 DEG C.Sharply heat meeting significant shrinkage after spraying, cause producing gap between active material and collector, even cause active material to come off, the present invention will be heating and curing and carry out in three stages, and complete together in the process of electrode transmission, make coating more even, better effects if.
Again further preferably, three phase temperature be heating and curing are distributed as 85 DEG C, 90 DEG C, 100 DEG C.
In the preparation method of above-mentioned a kind of ultra-thin metatitanic acid lithium electrode, as preferably, the high temperature rolled as carrying out at 100-150 DEG C described in step S3 rolls.Being rolled by high temperature can curing activity material further, simultaneously by coating densification, and then improves the quality of product.If but temperature too high (being greater than 155 DEG C), binding agent can be caused to volatilize, affect caking property, even cause active material to come off.
In the preparation method of above-mentioned a kind of ultra-thin metatitanic acid lithium electrode, as preferably, the gross thickness of ultra-thin lithium titanate anode electrode obtained in step S3 is 40-80 μm.The thickness of both positive and negative polarity has the relation of a capacity matching, and the specific capacity of negative pole is much larger than positive electrode, and therefore the thickness of negative pole is relatively lower better within the specific limits.If but the thickness of negative electrode is lower than 38 μm in the present invention, be then unfavorable for spraying, collector easily ruptures.If negative material is too thick, the capacity of negative pole too much can not really use.Again because test finds, when in capacitor, positive pole thickness is 240 μm, capacitor has best cyclical stability, and therefore, synthesise various factor, the gross thickness of negative electrode controls within the scope of 40-80 μm by the present invention.
Compared with prior art, in the preparation method of the ultra-thin metatitanic acid lithium electrode of the present invention, coating procedure is simple, and rapidly and efficiently, powder using efficiency is high, avoids the waste of the energy in the present invention.Ultrathin electrodes surface particles is evenly distributed simultaneously, improves and disperse problem that is uneven and coating ultrathin electrodes process difficult in conventional wet lay coating.In addition, ultra-thin lithium titanate anode electrode the present invention obtained is used in mixed capacitor, and mixed capacitor can be made to have higher capacity, stronger stability.
Embodiment
Be below specific embodiments of the invention, technical scheme of the present invention is further described, but the present invention is not limited to these embodiments.
Embodiment 1
Take raw material negative pole lithium titanate material, conductive agent and binding agent in proportion, and raw material is obtained mixture after ultra high shear dispersion treatment; Wherein the mass percent of negative pole lithium titanate material, conductive agent and binding agent is respectively 85%, 10% and 5%;
Mixture is joined in powder feeder, adopt electrostatic powder spraying method to carry out electrode coating, adopt the electrostatic pressure of 60kV during spraying, under electrostatic pressure and compressed-air actuated effect, be adsorbed in by mixture powder on collector, then carrying out being heating and curing forms the negative electrode material of dual coating; Be heating and curing and carry out in three stages, the temperature of first stage is 85 DEG C, and the temperature of second stage is 90 DEG C, and the temperature of phase III is 100 DEG C;
Negative electrode material being carried out at 120 DEG C high temperature rolls the gross thickness of dual coating is the ultra-thin lithium titanate anode electrode of 60 μm, and the density of this electrode is 1.86g/cm
3.
Embodiment 2
Take raw material negative pole lithium titanate material, conductive agent and binding agent in proportion, and raw material is obtained mixture after ultra high shear dispersion treatment; Wherein the mass percent of negative pole lithium titanate material, conductive agent and binding agent is respectively 88%, 8% and 4%;
Mixture is joined in powder feeder, adopt electrostatic powder spraying method to carry out electrode coating, adopt the electrostatic pressure of 50kV during spraying, under electrostatic pressure and compressed-air actuated effect, be adsorbed in by mixture powder on collector, then carrying out being heating and curing forms the negative electrode material of dual coating; Be heating and curing and carry out in three stages, the temperature of first stage is 84 DEG C, and the temperature of second stage is 89 DEG C, and the temperature of phase III is 99 DEG C;
Negative electrode material being carried out at 130 DEG C high temperature rolls the gross thickness of dual coating is the ultra-thin lithium titanate anode electrode of 50 μm, and the density of this electrode is 1.85g/cm
3.
Embodiment 3
Take raw material negative pole lithium titanate material, conductive agent and binding agent in proportion, and raw material is obtained mixture after ultra high shear dispersion treatment; Wherein the mass percent of negative pole lithium titanate material, conductive agent and binding agent is respectively 90%, 6% and 4%;
Mixture is joined in powder feeder, adopt electrostatic powder spraying method to carry out electrode coating, adopt the electrostatic pressure of 70kV during spraying, under electrostatic pressure and compressed-air actuated effect, be adsorbed in by mixture powder on collector, then carrying out being heating and curing forms the negative electrode material of dual coating; Be heating and curing and carry out in three stages, the temperature of first stage is 86 DEG C, and the temperature of second stage is 91 DEG C, and the temperature of phase III is 102 DEG C;
Negative electrode material being carried out at 140 DEG C high temperature rolls the gross thickness of dual coating is the ultra-thin lithium titanate anode electrode of 70 μm, and the density of this electrode is 1.84g/cm
3.
Embodiment 4
Take raw material negative pole lithium titanate material, conductive agent and binding agent in proportion, and raw material is obtained mixture after ultra high shear dispersion treatment; Wherein the mass percent of negative pole lithium titanate material, conductive agent and binding agent is respectively 80%, 15% and 5%;
Mixture is joined in powder feeder, adopt electrostatic powder spraying method to carry out electrode coating, adopt the electrostatic pressure of 40kV during spraying, under electrostatic pressure and compressed-air actuated effect, be adsorbed in by mixture powder on collector, then carrying out being heating and curing forms the negative electrode material of dual coating; Be heating and curing and carry out in three stages, the temperature of first stage is 82 DEG C, and the temperature of second stage is 89 DEG C, and the temperature of phase III is 98 DEG C;
Negative electrode material being carried out at 100 DEG C high temperature rolls the gross thickness of dual coating is the ultra-thin lithium titanate anode electrode of 80 μm, and the density of this electrode is 1.83g/cm
3.
Embodiment 5
Take raw material negative pole lithium titanate material, conductive agent and binding agent in proportion, and raw material is obtained mixture after ultra high shear dispersion treatment; Wherein the mass percent of negative pole lithium titanate material, conductive agent and binding agent is respectively 92%, 5% and 3%;
Mixture is joined in powder feeder, adopt electrostatic powder spraying method to carry out electrode coating, adopt the electrostatic pressure of 80kV during spraying, under electrostatic pressure and compressed-air actuated effect, be adsorbed in by mixture powder on collector, then carrying out being heating and curing forms the negative electrode material of dual coating; Be heating and curing and carry out in three stages, the temperature of first stage is 88 DEG C, and the temperature of second stage is 92 DEG C, and the temperature of phase III is 103 DEG C;
Negative electrode material being carried out at 150 DEG C high temperature rolls the gross thickness of dual coating is the ultra-thin lithium titanate anode electrode of 40 μm, and the density of this electrode is 1.81g/cm
3.
Adopt electrostatic powder spraying in the preparation method of the ultra-thin metatitanic acid lithium electrode of the present invention, coating procedure is simple, and rapidly and efficiently, powder using efficiency is high, avoids the waste of the energy.Ultrathin electrodes surface particles is evenly distributed simultaneously, improves and disperse problem that is uneven and coating ultrathin electrodes process difficult in conventional wet lay coating.In addition, ultra-thin lithium titanate anode electrode the present invention obtained is used in mixed capacitor, and mixed capacitor can be made to have higher capacity, stronger stability.
In addition, application claims protection technical scope midrange non-limit part and in embodiment technical scheme to the new technical scheme that the equal replacement of single or multiple technical characteristic is formed, equally all in the scope of protection of present invention; Simultaneously in all embodiments enumerated or do not enumerate of the present invention program, parameters in the same embodiment only represents an example (i.e. a kind of feasible scheme) of its technical scheme.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although made a detailed description the present invention and quoted some specific embodiments as proof, to those skilled in the art, only otherwise it is obvious for leaving that the spirit and scope of the present invention can make various changes or revise.
Claims (9)
1. a preparation method for ultra-thin metatitanic acid lithium electrode, is characterized in that, described preparation method comprises the steps:
S1, take raw material negative pole lithium titanate material, conductive agent and binding agent in proportion, and raw material is mixed into mixture powder; Wherein the mass percent of negative pole lithium titanate material, conductive agent and binding agent is respectively 80-92%, 5-15% and 3-10%;
S2, join in powder feeder by mixture powder, adopt electrostatic powder spraying method to carry out electrode coating, mixture powder is adsorbed on collector equably, then carrying out being heating and curing forms the negative electrode material of dual coating;
S3, negative electrode material is rolled to obtain ultra-thin lithium titanate anode electrode.
2. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 1, is characterized in that, the conductive agent described in step S1 is one or more of conductive black, Graphene, carbon nano-tube or carbon nano-fiber.
3. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 1, it is characterized in that, the binding agent described in step S1 is one or more in polytetrafluoroethylene, butadiene-styrene rubber, acrylic resin, Kynoar.
4. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 1, it is characterized in that, the electrostatic pressure in step S2 during electrostatic powder spraying is 40-80kV.
5. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 1, is characterized in that, to be thickness the be corrosive aluminum foil of 20-40 μm of the collector described in step S2.
6. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 1, it is characterized in that, be heating and curing and carry out in three stages in step S2, the temperature of first stage is 82-88 DEG C, the temperature of second stage is 89-92 DEG C, and the temperature of phase III is 98-103 DEG C.
7. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 6, it is characterized in that, three phase temperature be heating and curing are distributed as 85 DEG C, 90 DEG C, 100 DEG C.
8. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 1, it is characterized in that, the high temperature rolled as carrying out at 100-150 DEG C described in step S3 rolls.
9. the preparation method of a kind of ultra-thin metatitanic acid lithium electrode according to claim 1, is characterized in that, the gross thickness of ultra-thin lithium titanate anode electrode obtained in step S3 is 40-80 μm.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146873A (en) * | 2017-05-25 | 2017-09-08 | 西藏杭能新能源科技有限公司 | A kind of preparation method of lithium titanate anode electrode |
| CN107732137A (en) * | 2017-08-21 | 2018-02-23 | 宁波中车新能源科技有限公司 | A kind of preparation method of lithium titanate anode |
| CN107731556A (en) * | 2017-10-27 | 2018-02-23 | 宁波中车新能源科技有限公司 | A kind of preparation method of ultracapacitor C film |
| CN108649185A (en) * | 2018-04-25 | 2018-10-12 | 苏州宇量电池有限公司 | A kind of solid-state preparation method, pole piece and the lithium ion battery of electrodes of lithium-ion batteries |
| CN111477841A (en) * | 2020-05-26 | 2020-07-31 | 苏州凌威新能源科技有限公司 | Lithium battery pole piece and preparation method thereof |
| CN112420987A (en) * | 2020-11-26 | 2021-02-26 | 惠州亿纬锂能股份有限公司 | High-porosity lithium ion battery pole piece and preparation method and application thereof |
| CN115831629A (en) * | 2022-11-26 | 2023-03-21 | 中国矿业大学 | Solvent-free coating method for negative electrode of lithium ion capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1677722A (en) * | 2004-03-31 | 2005-10-05 | 罗姆和哈斯公司 | Method of forming an electrode structure useful in energy storage devices |
| CN101262078A (en) * | 2008-04-14 | 2008-09-10 | 天津巴莫科技股份有限公司 | Quickly chargeable lithium ion battery and its making method |
| CN104067362A (en) * | 2011-12-20 | 2014-09-24 | 应用材料公司 | Apparatus and method for hot coating electrodes of lithium-ion batteries |
| CN104488115A (en) * | 2012-05-31 | 2015-04-01 | 蜻蜓能源有限责任公司 | Processes for the manufacture of conductive particle films for lithium ion batteries |
-
2015
- 2015-12-15 CN CN201510939833.9A patent/CN105355470A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1677722A (en) * | 2004-03-31 | 2005-10-05 | 罗姆和哈斯公司 | Method of forming an electrode structure useful in energy storage devices |
| CN101262078A (en) * | 2008-04-14 | 2008-09-10 | 天津巴莫科技股份有限公司 | Quickly chargeable lithium ion battery and its making method |
| CN104067362A (en) * | 2011-12-20 | 2014-09-24 | 应用材料公司 | Apparatus and method for hot coating electrodes of lithium-ion batteries |
| CN104488115A (en) * | 2012-05-31 | 2015-04-01 | 蜻蜓能源有限责任公司 | Processes for the manufacture of conductive particle films for lithium ion batteries |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146873A (en) * | 2017-05-25 | 2017-09-08 | 西藏杭能新能源科技有限公司 | A kind of preparation method of lithium titanate anode electrode |
| CN107732137A (en) * | 2017-08-21 | 2018-02-23 | 宁波中车新能源科技有限公司 | A kind of preparation method of lithium titanate anode |
| CN107732137B (en) * | 2017-08-21 | 2021-08-10 | 宁波中车新能源科技有限公司 | Preparation method of lithium titanate negative electrode |
| CN107731556A (en) * | 2017-10-27 | 2018-02-23 | 宁波中车新能源科技有限公司 | A kind of preparation method of ultracapacitor C film |
| CN107731556B (en) * | 2017-10-27 | 2019-12-27 | 宁波中车新能源科技有限公司 | Preparation method of carbon film for supercapacitor |
| CN108649185A (en) * | 2018-04-25 | 2018-10-12 | 苏州宇量电池有限公司 | A kind of solid-state preparation method, pole piece and the lithium ion battery of electrodes of lithium-ion batteries |
| CN111477841A (en) * | 2020-05-26 | 2020-07-31 | 苏州凌威新能源科技有限公司 | Lithium battery pole piece and preparation method thereof |
| CN112420987A (en) * | 2020-11-26 | 2021-02-26 | 惠州亿纬锂能股份有限公司 | High-porosity lithium ion battery pole piece and preparation method and application thereof |
| CN115831629A (en) * | 2022-11-26 | 2023-03-21 | 中国矿业大学 | Solvent-free coating method for negative electrode of lithium ion capacitor |
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