CN106531463B - A kind of lithium-ion capacitor and preparation method with positive and negative electrode - Google Patents
A kind of lithium-ion capacitor and preparation method with positive and negative electrode Download PDFInfo
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- CN106531463B CN106531463B CN201610985361.5A CN201610985361A CN106531463B CN 106531463 B CN106531463 B CN 106531463B CN 201610985361 A CN201610985361 A CN 201610985361A CN 106531463 B CN106531463 B CN 106531463B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/13—Energy storage using capacitors
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Abstract
The invention discloses a kind of lithium-ion capacitors and preparation method with positive and negative electrode that belong to electrochemical energy storing device field.The lithium-ion capacitor is made of shell, cover, battery core, anode, cathode, filler plug and leading-out terminal；Wherein battery core is fixed inside the shell, and the anode and cathode of battery core are connect by collector with respective leading-out terminal.This method by mixed slurry, prepare pole piece, it is folded into battery core and carries out insulation processing, by the collector of battery core and leading-out terminal laser welding, it is packed into shell, assemble sealed insulation washer, cover and nut, shell and cover are sealed using laser welding and are welded into lithium-ion capacitor, the present invention integrates the advantages of lithium ion battery and double layer capacitor, a kind of lithium-ion capacitor is prepared, which is to take into account high energy ratio, high power simultaneously than, high circulation service life, the energy storage device of high safety performance.
Description
Technical field
The invention belongs to electrochemical energy storing device field, more particularly to a kind of lithium-ion capacitor with positive and negative electrode and
Preparation method.
Technical background
Deteriorate in global environment, resource is constantly deficient, and the energy is all a hot issue in the world.And all
The energy in, electric energy be the mankind apply most ripe one kind.According to existing market applied analysis, it is widely applied be lithium respectively from
Sub- battery and double layer capacitor etc., wherein lithium ion battery have high voltage, high storing up electricity performance, but in cycle life, defeated
Exist in terms of going out power and restricts；In addition double layer capacitor has the features such as high power characteristic, high circulation service life, high security,
But there are larger differences compared with lithium ion battery in energy ratio.With the development of industry, the demand in market, to high-energy
It is more continuous than the energy storage device in, high circulation service life, high safety performance than, high power to propose new requirement.It, will be upper by principle analysis
The advantages of stating lithium ion battery and double layer capacitor is integrated, invention prepare it is a kind of take into account simultaneously high energy ratio, high power ratio,
The high circulation service life, high safety performance energy storage device --- lithium-ion capacitance.
Invention content
The object of the present invention is to provide a kind of lithium-ion capacitor and preparation method with positive and negative electrode, which is characterized in that
The lithium-ion capacitor with positive and negative electrode is by shell, cover, battery core, anode, cathode, filler plug and exit subgroup
At；Wherein battery core is fixed inside the shell, and the anode and cathode of battery core are connect by collector with respective leading-out terminal, exit
Son is sealed by sealed insulation washer, clamp nut and cover and is fixed；Cover is welded with body seal, and fluid injection is arranged in middle part of cover
Hole, filler plug seal liquid injection hole, prevent electrolyte from outflowing.
The anode is reversibly to carry the carrier of lithium ion or anion based on activated carbon material.
The cathode is with graphite, Li4Ti5O12, based on activated carbon, the carrier of lithium ion substance can be carried.
There are contact conductor jack or threaded hole in the center of the leading-out terminal.
A kind of preparation method of the lithium-ion capacitor with positive and negative electrode, which is characterized in that specifically include and prepared as follows
Journey：
1) prepared by anode
1.1 by deionized water and carboxyl methyl cellulose binder in mass ratio 80:1 ratio high-speed stirred 15~45
Minute, so that deionized water is fully merged with CMC binders；
1.2 are added conductive black, by deionized water, the mass ratio 80 of CMC binders, conductive black:1:5~10 mixing,
It under the vacuum condition of -0.1Mpa, stirs 20~40 minutes, forms high viscosity conductive agent；
1.3 are added activated carbon, by deionized water, the mass ratio 80 of CMC binders, conductive black, activated carbon:1:5~10:
30~50 mixing are stirred 30~60 minutes under the vacuum condition of -0.1Mpa, form the higher slurry of solid content；
1.4 by above-mentioned slurry be coated in the porous aluminium foil surface through excessive erosion, then by high-temperature baking formed thickness 150~
250 μm of anode；
2) prepared by cathode
2.1 by deionized water and CMC binders in mass ratio 80:1 ratio, high-speed stirred 15~45 minutes, make from
Sub- water is fully merged with CMC binders；
2.2 are added conductive black, by deionized water, the mass ratio 80 of CMC binders, conductive black:1:5~10 mixing,
It under the vacuum condition of -0.1Mpa, stirs 20~40 minutes, forms high viscosity conductive agent；
2.3 are added graphite, Li4Ti5O12, activated carbon, by deionized water, CMC binders, conductive black, graphite,
Li4Ti5O12, activated carbon mass ratio 80:1:5~10:0.5~1：10~15:25~45 ratio stirs 30~60 minutes,
The slurry of formation；
2.4 by above-mentioned slurry be coated in the porous aluminium foil surface through excessive erosion, then by high-temperature baking formed thickness 150~
250 μm of cathode；
3) anode ring forming
Anode, cathode are distinguished punching molding by 3.1；
3.2 utilize manipulator side-to-side movement, and pole piece is drawn in " just " pole, cathode the two poles of the earth film magazine, on lamination stacking table alternately
Put down pole piece, at the same make diaphragm with suction cup carrier side-to-side movement will " just " pole pole piece, the cathode pole piece lamination process of " Z " font roll over
Build up battery core.
Battery core surface is carried out insulation processing by 3.3.
3.4 pre-packaged：
(1) battery core positive and negative anodes are attached with the leading-out terminal being pre-designed；
(2) in encapsulation to the metal shell of compression moulding.
3.5 fluid injections are molded, and are containing lithium ion salt and triethyl methyl tetrafluoro boric acid ammonia salt by verification experimental verification electrolyte
Organic system, specific electrolyte includes：Solute is lithium hexafluoro phosphate LiPF6With triethyl methyl tetrafluoro boric acid ammonia
Et3MeNBF4Salt-mixture, the molar ratio of two kinds of salt is 1:1；Solvent is selected from ethylene carbonate EC, propene carbonate PC, propylene
It is one or more in nitrile AN, dimethyl carbonate DMC；By one of which solvent and solute be mixed into concentration of electrolyte be 0.8~
It is packaged molding in 1.5mol/L injection products.
The beneficial effects of the invention are as follows by principle analysis, the advantages of lithium ion battery and double layer capacitor, is carried out whole
It closes, prepares a kind of lithium-ion capacitance, which is to take into account high energy ratio, high power ratio, the high circulation service life, high simultaneously
The energy storage device of security performance.
Description of the drawings
Fig. 1 is the outline drawing of lithium-ion capacitor.
Fig. 2 is positive and negative electrode schematic shapes.
Fig. 3 is that battery core folds flow diagram.
Fig. 4 is the sectional view of Fig. 1, and wherein a is orthogonal view；B is drawing in side sectional elevation.
Specific implementation mode
The present invention provides a kind of lithium-ion capacitor and preparation method with positive and negative electrode, below in conjunction with the accompanying drawings to this hair
It is bright to be further described.
Fig. 1, Fig. 4 are lithium-ion capacitor structural schematic diagram；In wherein Fig. 4, a is orthogonal view；B is drawing in side sectional elevation.It should
Lithium-ion capacitor is made of shell, cover, battery core, anode, cathode, filler plug and leading-out terminal；Wherein battery core 6 is fixed on
In shell 1, the anode and cathode of battery core 6 are connect by collector 8 with respective leading-out terminal 7, and there is electricity at the center of leading-out terminal 7
Pole wire jack or threaded hole 9.Leading-out terminal 7 is fixed by sealed insulation washer 4, clamp nut 3 and the sealing of cover 2；Cover 2
With 1 sealing welding of shell, liquid injection hole is set at 2 middle part of cover, filler plug 5 seals liquid injection hole, prevents electrolyte from outflowing.It is described
Anode is reversibly to carry the carrier of lithium ion or anion based on activated carbon material.
The cathode is with graphite, Li4Ti5O12, based on activated carbon, the carrier of lithium ion substance can be carried.
A kind of preparation method of the lithium-ion capacitor with positive and negative electrode, which is characterized in that specifically include and prepared as follows
Journey：
1) prepared by anode
1.1 by deionized water and carboxyl methyl cellulose binder in mass ratio 80:1 ratio high-speed stirred 35 minutes,
Deionized water is set fully to be merged with CMC binders；
1.2 are added conductive black, by deionized water, the mass ratio 80 of CMC binders, conductive black:1:8 mixing ,-
It under the vacuum condition of 0.1Mpa, stirs 30 minutes, forms high viscosity conductive agent；
1.3 are added activated carbon, by deionized water, the mass ratio 80 of CMC binders, conductive black, activated carbon:1:9:40 is mixed
It closes, under the vacuum condition of -0.1Mpa, stirs 45 minutes, form the higher slurry of solid content；
1.4 by above-mentioned slurry be coated in the porous aluminium foil surface through excessive erosion, then by high-temperature baking formed thickness 150~
250 μm of anode；
2) prepared by cathode
2.1 by deionized water and CMC binders in mass ratio 80:1 ratio, high-speed stirred 15~45 minutes, make from
Sub- water is fully merged with CMC binders；
2.2 are added conductive black, by deionized water, the mass ratio 80 of CMC binders, conductive black:1:5~10 mixing,
It under the vacuum condition of -0.1Mpa, stirs 35 minutes, forms high viscosity conductive agent；
2.3 are added graphite, Li4Ti5O12, activated carbon, by deionized water, CMC binders, conductive black, graphite,
Li4Ti5O12, activated carbon mass ratio 80:1:8:0.7：12:35 ratio stirs 45 minutes, the slurry of formation；
2.4 by above-mentioned slurry be coated in the porous aluminium foil surface through excessive erosion, then by high-temperature baking formed thickness 150~
250 μm of cathode；
3) anode ring forming
Anode, cathode are distinguished punching molding (as shown in Figure 2) by 3.1；
3.2 utilize manipulator side-to-side movement, and pole piece is drawn in anode and cathode the two poles of the earth film magazine, are alternately put on lamination stacking table
Inferior pole piece, while diaphragm being made to be folded into anode pole piece, cathode pole piece with the lamination process of " Z " font with suction cup carrier side-to-side movement
Battery core (as shown in Figure 3).
Battery core surface is carried out insulation processing by 3.3.
3.4 pre-packaged：
(1) battery core positive and negative anodes are attached with the leading-out terminal being pre-designed；
(2) in encapsulation to the metal shell of compression moulding.
3.5 fluid injections are molded, and are containing lithium ion salt and triethyl methyl tetrafluoro boric acid ammonia salt by verification experimental verification electrolyte
Organic system, specific electrolyte includes：Solute is lithium hexafluoro phosphate LiPF6With triethyl methyl tetrafluoro boric acid ammonia
Et3MeNBF4Salt-mixture, the molar ratio of two kinds of salt is 1:1；Solvent is selected from ethylene carbonate EC, propene carbonate PC, acrylonitrile
It is one or more in AN, dimethyl carbonate DMC；The above one of which electrolyte (a concentration of 0.8~1.5mol/L) is injected
Molding is packaged in product.
The present invention by mixed slurry, prepare pole piece, be folded into battery core and carry out insulation processing, by the collector of battery core with
Leading-out terminal laser welding is packed into shell, assembling sealed insulation washer, cover and nut, using laser welding by shell with
Cover, which is sealed, is welded into length 80mm width 50mm, the ionistor of thickness 10mm lithiums, and electricity is injected after drying process
Solve liquid.
Claims (1)
1. a kind of preparation method of the lithium-ion capacitor with positive and negative electrode, the lithium-ion capacitor with positive and negative electrode by
Shell, cover, battery core, anode, cathode, filler plug and leading-out terminal composition；Wherein battery core is fixed inside the shell, and battery core is just
Pole and cathode are connect by collector with respective leading-out terminal；It is characterized in that, specifically including following preparation process：
1）It is prepared by anode
1.1 by deionized water and carboxyl methyl cellulose binder in mass ratio 80:1 ratio high-speed stirred 15~45 minutes,
Deionized water is set fully to be merged with CMC binders；
1.2 are added conductive black, by deionized water, the mass ratio 80 of CMC binders, conductive black:1:5~10 mixing ,-
It under the vacuum condition of 0.1Mpa, stirs 20~40 minutes, forms high viscosity conductive agent；
1.3 are added activated carbon, by deionized water, the mass ratio 80 of CMC binders, conductive black, activated carbon:1:5~10:30
~50 mixing are stirred 30~60 minutes under the vacuum condition of -0.1Mpa, form the higher slurry of solid content；
Above-mentioned slurry is coated in the porous aluminium foil surface through excessive erosion by 1.4, then forms 150~250 μ of thickness by high-temperature baking
The anode of m；
2) prepared by cathode
2.1 by deionized water and CMC binders in mass ratio 80:1 ratio, high-speed stirred 15~45 minutes, makes deionized water
It is fully merged with CMC binders；
2.2 are added conductive black, by deionized water, the mass ratio 80 of CMC binders, conductive black:1:5~10 mixing ,-
It under the vacuum condition of 0.1Mpa, stirs 20~40 minutes, forms high viscosity conductive agent；
2.3 are added graphite, Li4Ti5O12, activated carbon, by deionized water, CMC binders, conductive black, graphite, Li4Ti5O12,
The mass ratio 80 of activated carbon:1:5~10:0.5~1：10~15:25~45 ratio stirs 30~60 minutes, the slurry of formation
Material；
Above-mentioned slurry is coated in the porous aluminium foil surface through excessive erosion by 2.4, then forms 150~250 μ of thickness by high-temperature baking
The cathode of m；
3）Anode ring forming
Anode, cathode are distinguished punching molding by 3.1；
3.2 utilize manipulator side-to-side movement, and pole piece is drawn in anode, cathode the two poles of the earth film magazine, and alternately pole is put down on lamination stacking table
Piece, while making diaphragm that anode pole piece, cathode pole piece are folded into electricity with the lamination process of " Z " font with suction cup carrier side-to-side movement
Core；
Battery core surface is carried out insulation processing by 3.3,
3.4 pre-packaged：
Battery core positive and negative anodes are attached with the leading-out terminal being pre-designed；
In encapsulation to the metal shell of compression moulding；
3.5 fluid injections are molded, and will verify the electrolyte of the organic system containing lithium ion salt and triethyl methyl tetrafluoro boric acid ammonia salt
It is packaged molding in injection product；Specifically electrolyte includes：Solute is lithium hexafluoro phosphate LiPF6With triethyl methyl tetrafluoro
Boric acid ammonia Et3MeNBF4Salt-mixture, the molar ratio of two kinds of salt is 1:1；Solvent is selected from ethylene carbonate EC, propene carbonate
It is one or more in PC, acrylonitrile AN, dimethyl carbonate DMC；One of which solvent and solute are mixed into concentration of electrolyte
For 0.8~1.5mol/L.
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| CN201610985361.5A CN106531463B (en) | 2016-11-09 | 2016-11-09 | A kind of lithium-ion capacitor and preparation method with positive and negative electrode |
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| CN106531463B true CN106531463B (en) | 2018-09-28 |
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| CN101110472A (en) * | 2007-04-05 | 2008-01-23 | 蔡松珊 | Lithium ion battery cover plate and lithium ion battery or battery set using the cover plate |
| CN101789315B (en) * | 2010-03-19 | 2013-03-13 | 苏州能斯特新能源有限公司 | Hybrid super capacitor and preparation method thereof |
| CN103915607B (en) * | 2014-04-29 | 2016-02-24 | 唐山金能电子科技有限公司 | A kind of preparation method of lithium ion battery and using method |
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