CN100527491C - Battery electrode paste compound containing modified maleimide - Google Patents
Battery electrode paste compound containing modified maleimide Download PDFInfo
- Publication number
- CN100527491C CN100527491C CNB2006101566888A CN200610156688A CN100527491C CN 100527491 C CN100527491 C CN 100527491C CN B2006101566888 A CNB2006101566888 A CN B2006101566888A CN 200610156688 A CN200610156688 A CN 200610156688A CN 100527491 C CN100527491 C CN 100527491C
- Authority
- CN
- China
- Prior art keywords
- maleimide
- paste compound
- electrode paste
- battery electrode
- compound according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses an electrode paste compound of a battery containing modified maleimide, which comprises electrode active material, conductive additive, agglutinate and modified maleimide dispersing agent. The modified maleimide acting as the dispersing agent in the compound has a dendrimer-like hyperbranched structure and can form a stable complex compound with the electrode active material such as metal oxide, improve the dispersion of the paste solution, reduce the viscosity of the paste, and maintain the stability of the viscosity for a long term. Besides, due to excellent compatibility of the modified maleimide and the electrode paste solvent, the stability in storing the paste can be improved. In addition, through stable bonds formed by the modified maleimide and a current collecting substrate of the electrode, the adhesive force between an electrode membrane and the current collecting substrate can be increased, and the cycle life of the battery product can be prolonged.
Description
Technical field
The present invention relates to a kind of battery electrode paste compound, especially relate to a kind of electrode slurry composition that is used for lithium battery.
Background technology
In recent years, such as 3C electronic products such as notebook computer, clamshell phone, digital camera and video cameras, develop towards light, thin, short, little direction, become the trend of electronics technologyization and communication product, further increased the demand of carrying energy supply device " secondary cell ".Relative, the demand of secondary cell and specification are also towards slimming, small size and lightweight development.Simultaneously, in response to electronic product functional diversities, two-forty, high-performance and high-power demand, also increase gradually for the electric capacity demand of secondary cell.
Generally speaking, the energy density of lithium ion battery about 260 is to 270kWh/m
3, be about two times of the NI-G alkaline secondary cell even higher.Advantages such as lithium ion/lithium macromolecule secondary cell has quick charge, high power discharge, energy density is high and have extended cycle life, therefore, in all secondary cells, lithium ion battery and lithium macromolecule battery occupy important role in the application of small-sized electronic product.
The electrochemical principle of lithium ion battery or lithium macromolecule battery is identical with general battery, and main composition is respectively positive pole, negative pole, barrier film and electrolyte, and in charging process, lithium ion is shifted to negative pole by positive pole; During discharge, lithium ion is then shifted to positive pole by negative pole.Anodal all comprise the electronic metal collecting board with negative pole and electrode surface is coated with rete, wherein this positive and negative electrode surface coating layer all contain electrode activation thing, conductive powder body and with the electrode sticking agent.
Owing to make in the positive electrode of anodal surface coating, contain high density lithium cobalt oxide (LiCoO
2) wait the metal oxide powder of positive active material, with low-density carbon dust and graphite, the poly-difluoroethylene (PVDF) of electrode sticking agent and solvent N-methyl pyrrolidone (NMP) mix with dispersion under, cause sedimentation (sedimentation) phenomenon easily.Therefore, the uniformity dispersed and coating of pole plate slurry has become the principal element that influences lithium rechargeable battery or lithium macromolecule battery quality stability.
On the other hand, because uniformity, electrode film that electrode active material is scattered in electrode tunic surface to the adhesive force of electrode activation thing and the electrode film adhesive force to the electronic metal collecting board, are all the key factor of the electrical performance that influences lithium ion battery and lithium macromolecule battery.
Therefore, still need a kind of electrode slurry composition with polymolecularity, low viscosity and high storage stability.
Summary of the invention
Because the problems referred to above, main purpose of the present invention promptly is to provide a kind of electrode slurry composition with polymolecularity.
Another object of the present invention provides a kind of low viscous electrode slurry composition.
Another purpose of the present invention provides a kind of electrode slurry composition that can keep viscosity stability for a long time.
A further object of the present invention provides a kind of electrode slurry composition that can improve storage stability.
Another purpose of the present invention provides a kind of electrode slurry composition that can prolong battery product cycle life.
For reaching above-mentioned and other purpose, the invention provides a kind of battery electrode paste compound that contains modified maleimide, comprise electrode active material, conductive additive, sticker and modified maleimide dispersant.In the electrode slurry composition of the present invention, height branch (hyperbranched) structure that has similar resin-like (dendrimer-like) as the modified maleimide of dispersant, can form stable complex compound with electrode active materials such as metal oxides, help to increase dispersiveness, the viscosity that reduces slurry is also kept the stability of viscosity for a long time.On the other hand, because described modified maleimide and electrode slurry solvent have splendid compatibility, thereby the storage stability of lifting slurry, and the stable bond that modified maleimide in this paste compound and electrode metal collecting board form, increase the adhesive force between formed electrode film of slurry and the metal collecting board, prolonged the cycle life of battery product.
Description of drawings
Fig. 1 shows that the present invention contains the positive and negative electrode electrode slurry sample of modified maleimide and right
According to the slurry rheological equationm of state test result of positive and negative electrode electrode slurry sample.
Embodiment
The present invention contains the battery electrode paste compound of modified maleimide, comprises electrode active material, conductive additive, sticker and modified maleimide dispersant.In an instantiation, the modified maleimide dispersant in this electrode slurry composition lie in the barbituric acid shown in the use formula (I) in the solvent system (Barbituric acid, BTA) or derivatives thereof:
(in the formula, R
1With R
2Be independently selected from-H ,-CH
3,-C
2H
5,-C
6H
5,-CH (CH
3)
2,-CH
2CH (CH
3)
2,-CH
2CH
2CH (CH
3)
2Or-CH (CH
3)-(CH
2)
2-CH
3)
Carry out the modified-reaction of partly free radical open loop with maleimide and make.The maleimide that reacts with this barbituric acid can be the bismaleimides shown in the formula (II):
(in the formula, R can be-(CH
2)
2-,-(CH
2)
6-,-(CH
2)
8-,-(CH
2)
12-,-CH
2-C (CH
3)
2-CH
2-CH (CH
3)-(CH
2)
2-,
Or comprise the maleimide amine blends of bismaleimides and single maleimide.
The example of described bismaleimides comprises, but the non-N that is limited to, N '-ethene-bismaleimides, N, N '-butylene-bismaleimides, N, N '-hexa-methylene-bismaleimides, N, N '-penylene-bismaleimides, N, N '-4,4 '-diphenyl methane-bismaleimides, N, N '-4,4 '-diphenyl ether-bismaleimides, N, N '-4,4 '-diphenyl sulphone (DPS)-bismaleimides, N, N '-4,4 '-dicyclohexyl methyl hydride-bismaleimides, N, N '-xyxylene-bismaleimides and N, N '-diphenyl cyclohexane-bismaleimides.The example of described single maleimide comprises, but the non-phenyl maleimide that is limited to, N-(neighbour-aminomethyl phenyl) maleimide, N-(-aminomethyl phenyl) maleimide, N-(right-aminomethyl phenyl) maleimide, N-cyclohexane maleimide, dimaleoyl imino phenol (maleimidophenol), dimaleoyl imino benzocyclobutene (maleimidobenzocyclobutene), phosphorous maleimide, the maleimide that contains phosphonate ester, the maleimide that contains siloxanes, N-(4-tetrahydroxy pyranose-oxygen phenyl) maleimide and 2,6-xylyl-maleimide.
In an instantiation, the present invention uses bismaleimides and the single maleimide of mol ratio 100:0 to 50:50, carries out the partly modified-reaction of free radical open loop with barbituric acid, makes the modified maleimide dispersant.That is, can use bismaleimides and barbituric acid to react separately, or use comprise that the maleimide amine blends and the barbituric acid of bismaleimides and single maleimide react, formation modified maleimide dispersant.In this instantiation, the maleimide (bismaleimides or comprise bismaleimides and the maleimide amine blends of single maleimide) that carries out modified-reaction and the mol ratio of barbituric acid or derivatives thereof are in the scope of 25:1 to 1:1.This modified-reaction can use, and for example (propylene carbonate is PC) as solvent for the acrylic carbonic ester; Wherein, comprise that the weight ratio of the reactant of barbituric acid and maleimide and acrylic carbonate solvent is in the scope of 3:97 to 40:60.This modified-reaction can react under in 110 to 130 ℃ the temperature conditions, lasts 2 to 7 hours.
Electrode slurry composition of the present invention uses the maleimide of barbituric acid modification as dispersant, particularly uses the bismaleimides of barbituric acid modification.Maleimide and the employed solvent of electrode slurry through the barbituric acid modification, N-methyl pyrrolidone (N-methyl pyrrolidinone for example, NMP), has splendid compatibility, and described modified maleimide has height branch (hyperbranched) structure of similar resin-like (dendrimer-like), can with electrode active material in the electrode slurry composition, metal oxide for example, form stable complex compound, increase dispersed, reduce the viscosity of slurry, keep the stability of viscosity for a long time, improve the uniformity of pole plate coating and the stability of operation.In an instantiation, in the electrode slurry composition of the present invention, the addition of described modified maleimide dispersant with the total restatement of composition solid content between 0.1 to 5 weight %, preferably between 0.2 to 3 weight %.
Electrode slurry composition of the present invention can be used for making the anode electrode film of lithium ion battery or lithium macromolecule battery.In the example of making the anode electrode film, use for example lithium and cobalt oxides (LiCoO of positive active material
2), lithium manganese oxide (LiMnO
2), lithium nickel oxide (LiNiO
2), iron lithium phosphate oxide (LiFePO
4) and composition thereof wait electrode active material as described paste compound.On the other hand, and mutually spherical carbon in the middle of also can using (MesophaseCarbon Micro Beads, MCMB), negative electrode active material such as natural graphite powder and composition thereof is as the electrode active material in the paste compound.In the composition of the present invention, there is no particular restriction for the content of described electrode active material, as long as be enough to provide required capacitance and do not influence the electrode film processing characteristics.In an instantiation, described electrode active material accounts for composition gross weight 20 to 80 weight %, preferably accounts for composition gross weight 40 to 70 weight %.
The example of the conductive additive of described electrode slurry composition comprises, but non-bulky grain graphite KS4 (4 μ m), bulky grain graphite KS6 (6 μ m), vapor deposition carbon fibre (the VaporGrow Carbon Fiber of being limited to, VGCF) and granule carbon black (SP), preferably use vapor deposition carbon fibre (VGCF).Via surface treatment processing, the functional group can be imported this conductive additive, make this additive surface have two key functional groups that can react with maleimide.For example, use siloxanes coupling agent or the described conductive additive of oleic acid coupling agent modification, make this conductive additive surface have can with the vinyl double bond functional group of modified maleimide dispersant reaction.Usually, described conductive additive accounts for composition gross weight 0.1 to 5 weight %, preferably accounts for composition gross weight 0.5 to 5 weight %.
The example of the electrode sticking agent of electrode slurry composition of the present invention comprises, but non-poly-difluoroethylene (PVDF), acrylic resin (acrylic resin) and the styrene butadiene rubbers (SBR) of being limited to.Described electrode sticking agent can blend together netted homogeneous structural with the modified maleimide dispersant, improves the coating characteristics of slurry.On the other hand, when described paste compound is used to make lithium macromolecule battery, can promote the compatibility of paste compound and polyelectrolyte, increase the electric capacity of battery, prolong cycle life.In an instantiation, the electrode sticking agent accounts for composition gross weight 0.1 to 15 weight %, preferably accounts for composition gross weight 1 to 10 weight %.Described electrode slurry composition can further comprise additive, for example surfactant; And the reaction initiator, for example the two butyronitrile of peroxide or azo (2,2 '-azobisisobutyronitrile, AIBN).
Electrode slurry composition of the present invention is by adding the maleimide of modification, not only can increase the capacitance of battery product, and this paste compound also has excellent coating and film forming processing planarization, can improve the consistency and the yield of electrical performance, improve the throughput rate of battery product.On the other hand, modified maleimide in the described paste compound can form stable bond with the electrode metal collecting board, after processing coating drying, can promote the adhesive force between formed electrode film and metal collecting board, prolong the cycle life of battery product.
Below be to further specify characteristics of the present invention and effect, but non-ly be used to limit category of the present invention by particular specific embodiment.
Embodiment
Synthesis example 1: the preparation of modified bismaleimide dispersant
With reactant N, N '-4,4 '-diphenyl methane-bismaleimides and barbituric acid (mol ratio 10:1) place reaction vessel, the acrylic carbonate solvent are added in the reaction vessel again, and the weight ratio of this reactant and described acrylic carbonate solvent is 20:80.Be heated to 130 ℃ after the mixing and react, last 3 hours, obtain the maleimide dispersant of modification.
Preparation example 1: the preparation of anode plate slurry
Lithium and cobalt oxides (LiCoO with 1820 grams
2), 120 the gram KS4,60 the gram poly-difluoroethylenes (PVDF) and 850 the gram the N-methyl pyrrolidones place three dimensions mixer (3D Mixer).Then, the modified maleimide that synthesis example 1 is obtained adds this three dimensions mixer (3D Mixer) with the addition of slurry solid content gross weight 0.4 weight %.At last, add the mixing of quantitative criterion mixing Ke pearl and pour out mixture after 2.5 hours, filter the Ke pearl, obtain anodal slurry sample 1.
Preparation example 2: the preparation of anode plate slurry (control group)
Lithium and cobalt oxides (LiCoO with 1820 grams
2), 120 the gram KS4,60 the gram poly-difluoroethylenes (PVDF) and 850 the gram the N-methyl pyrrolidones place three dimensions mixer (3D Mixer).Then, add the mixing of quantitative criterion mixing Ke pearl and pour out mixture after 2.5 hours, filter the Ke pearl, obtain anodal slurry sample 2.
Preparation example 3: the preparation of negative plates slurry
The mutually spherical carbon in centre (MCMB) of 930 grams, the vapor deposition carbon fibre (VGCF) of 10 grams, the poly-difluoroethylene (PVDF) of 60 grams and the N-methyl pyrrolidone (NMP) of 750 grams are placed three dimensions mixer (3D Mixer).Then, the modified maleimide that synthesis example 1 is obtained adds this three dimensions mixer (3D Mixer) with the addition of slurry solid content gross weight 0.4 weight %.At last, add the mixing of quantitative criterion mixing Ke pearl and pour out mixture after 2.5 hours, filter the Ke pearl, obtain the slurry sample 3 of negative pole.
Preparation example 4: the preparation of negative plates slurry--control group
The mutually spherical carbon in centre (MCMB) of 930 grams, the vapor deposition carbon fibre (VGCF) of 10 grams, the poly-difluoroethylene (PVDF) of 60 grams and the N-methyl pyrrolidone (NMP) of 750 grams are placed three dimensions mixer (3D Mixer).Then, add the mixing of quantitative criterion mixing Ke pearl and pour out mixture after 2.5 hours, filter the Ke pearl, obtain the slurry sample 4 of negative pole.
Preparation example 5: the preparation of anode plate
Use anode sizing agent that above-mentioned preparation example obtains, utilize coating machine, at the slurry wet film of 180 microns of the aluminium foil upper surface coating thicknesss of 15 microns of thickness with 1 meter/minute application rate.This slurry wet film is 3 meters through two segment length, heating-up temperature be respectively 100 ℃ with 130 ℃ oven drying, the slurry film thickness of drying is 120 microns.Then, described aluminium foil lower surface carries out same program acquisition thickness and is similarly 120 microns dry film.At last, utilize roller to roll the aluminium foil that this double spread has the slurry film, roll rate 0.7, obtain anode plate.
Preparation example 6: the preparation of negative plates
Use cathode size that above-mentioned preparation example obtains, utilize coating machine, at the slurry wet film of 180 microns of rolled copper foil (RA Copper Foil) the upper surface coating thicknesss of 10 microns of thickness with 1 meter/minute application rate.This slurry wet film is 3 meters through two segment length, heating-up temperature be respectively 100 ℃ with 130 ℃ oven drying, the slurry film thickness of drying is 120 microns.Then, described Copper Foil lower surface carries out same program acquisition thickness and is similarly 120 microns dry film.At last, utilize roller to roll the aluminium foil that this double spread has the slurry film, roll rate 0.7, obtain negative plates.
The test of the test case 1--slurry rheological equationm of state
In 0 to 9 hour interval,, extract the bottom slurry, the rheometer test that carries out the sedimentation cohesion with per 1 hour leaving standstill at interval.The test of this slurry rheological behaviour is carried out with U.S. TA flow graph (ARES-LS1).By 0.01 to 10001/s, the definite value viscosity when getting slurry and presenting the Newtonian fluid characteristic is as decision content according to shear rate (shear rate).
As shown in Figure 1, the electrode slurry that contains modification Maleimide dispersant, especially Zheng Ji slurry sample are because the two Maleimides (MBMI) of this modification have high branch (hyperbranched) structure, metal oxide powder that can be bigger with proportion in the anode sizing agent is as LiCoO
2, form stable complex compound, can improve the dispersiveness of anode sizing agent solution effectively.
The result shown according to Fig. 1 with respect to the anode sizing agent sample 2 that does not add the modified maleimide dispersant, contains the anode sizing agent sample 1 of modified maleimide dispersant, has lower slurry viscosity.Moreover along with the increase of time of repose, the viscosity of not adding the anode sizing agent sample 2 of modification Maleimide dispersant raises gradually, and leaves standstill that viscosity obviously increases after 5 hours.By contrast, the anode sizing agent sample 1 that contains the modified maleimide dispersant not only has lower viscosity, and leave standstill and reach the stability that still can keep viscosity in 9 hours, so can solve over effectively that the anode plate slurry can't prepare in a large number and the manufacture method defective of coating for a long time.
On the other hand, the result shown according to Fig. 1 be not though cathode size contains the bigger LiCoO of proportion
2Deng metal oxide powder, yet, than the cathode size sample 4 that does not add the modified maleimide dispersant, the high apparatus derivatorius of the modified maleimide dispersant in the cathode size sample 3, similarly can reduce the viscosity of slurry, and leave standstill and still can keep viscosity stability in 9 hours.
Embodiment 1
The anode plate slurry that uses preparation example 1 to be obtained is according to the method acquisition anode plate of preparation example 5.Simultaneously, the negative plates slurry that uses preparation example 3 to be obtained is according to the method acquisition negative plates of preparation example 6.
With described anode plate, negative plates and long 30 millimeters, wide 20 millimeters, thick 5 millimeters standard cell core (Jelly Roll) is assembled into battery.Pour into 0.9 gram standard lithium battery liquid electrolyte, be the lithium ion battery sample of embodiment 1 after the encapsulation.Assemble another battery in the same way, pour into 0.9 gram standard lithium battery macromolecule electrolyte, the heating under 90 ℃ condition of encapsulation back was the lithium macromolecule battery sample of embodiment 1 in one hour.
The anode plate slurry that uses preparation example 1 to be obtained is according to the method acquisition anode plate of preparation example 5.Simultaneously, the negative plates slurry that uses preparation example 4 to be obtained is according to the method acquisition negative plates of preparation example 6.
With anode plate, negative plates and long 30 millimeters, wide 20 millimeters, thick 5 millimeters standard cell core (Jelly Roll) is assembled into battery.Pour into 0.9 gram standard lithium battery liquid electrolyte, be the lithium ion battery sample of embodiment 2 after the encapsulation.Assemble another battery in the same way, pour into 0.9 gram standard lithium battery macromolecule electrolyte, the heating under 90 ℃ condition of encapsulation back was the lithium macromolecule battery sample of embodiment 2 in one hour.
The anode plate slurry that uses preparation example 2 to be obtained is according to the method acquisition anode plate of preparation example 5.Simultaneously, the negative plates slurry that uses preparation example 3 to be obtained is according to the method acquisition negative plates of preparation example 6.
With anode plate, negative plates and long 30 millimeters, wide 20 millimeters, thick 5 millimeters standard cell core (Jelly Roll) is assembled into battery.Pour into 0.9 gram standard lithium battery liquid electrolyte, be the lithium ion battery sample of embodiment 3 after the encapsulation.Assemble another battery in the same way, pour into 0.9 gram standard lithium battery macromolecule electrolyte, the heating under 90 ℃ condition of encapsulation back was the lithium macromolecule battery sample of embodiment 3 in one hour.
Comparative example 1
The anode plate slurry that uses preparation example 2 to be obtained is according to the method acquisition anode plate of preparation example 5.Simultaneously, the negative plates slurry that uses preparation example 4 to be obtained is according to the method acquisition negative plates of preparation example 6.
With anode plate, negative plates and long 30 millimeters, wide 20 millimeters, thick 5 millimeters standard cell core (Jelly Roll) is assembled into battery.Pour into 0.9 gram standard lithium battery liquid electrolyte, be the lithium ion battery sample of comparative example 1 after the encapsulation.Assemble another battery in the same way, pour into 0.9 gram standard lithium battery macromolecule electrolyte, the heating under 90 ℃ condition of encapsulation back was the lithium macromolecule battery sample of comparative example 1 in one hour.
Impose 2 kilograms load weight total pulling force by puller system, peel off method with the test of 180o, the electrode pad slurry film after measuring drying and rolling is tested five times for the adhesive force of electronic metal collecting board, and measured value mean value is embedded in table 1.
The assessment of test case 3--battery performance
Under the stabling current program of 0.5C charge-discharge velocity, carry out the assessment of battery performance.Test therebetween, more original discharge capacity, 5 circulation (cycle) discharge capacity and 50 circulation (cycle) discharge capacity are tested five times, and measured value mean value is embedded in table 1.
Table 1
a30 millimeters (Long of Electricity pond finished size As) x20 millimeter (Wide) x5 millimeter (thick)
Table 1 shows embodiment 1, embodiment 2, embodiment 3 and the lithium ion battery sample of comparative example 1 and the performance test of lithium macromolecule battery sample, and positive and negative pole plate is to the adhesive force between metal interface (cathode metal is 15 micron aluminum foils, and the negative pole metal is 10 microns a rolled copper foil (RA Copper Foil)).The result shows, the electrode film that the electrode slurry composition that uses the present invention to contain the modified maleimide dispersant is obtained has excellent film forming planarization, and electrode film is better to electrode activation thing adhesive force, and electrode film also has better adhesive force to the electronic metal collecting board.Electrode slurry composition of the present invention no matter be to be used to make lithium ion battery or lithium macromolecule battery, repeatedly still can kept high discharge capacity after the circulation, and it is electrical to help to promote battery.
The foregoing description and comparative example are only done illustrative principle of the present invention and effect thereof, but not are used to limit the present invention.Any personage who is familiar with this skill all can be under spirit of the present invention and category, and above-mentioned example is modified and changed.Therefore, the scope of the present invention, claim is listed as described later.
Claims (20)
1. battery electrode paste compound that contains modified maleimide comprises:
(i) electrode active material;
(ii) conductive additive;
(iii) sticker; And
(iv) modified maleimide dispersant;
Wherein, described modified maleimide dispersant is formed by barbituric acid or derivatives thereof modified maleimide.
2. battery electrode paste compound according to claim 1, wherein, described maleimide comprises bismaleimides and single maleimide.
3. battery electrode paste compound according to claim 2, wherein, described bismaleimides is selected from N, N '-ethene-bismaleimides, N, N '-butylene-bismaleimides, N, N '-hexa-methylene-bismaleimides, N, N '-penylene-bismaleimides, N, N '-4,4 '-diphenyl methane-bismaleimides, N, N '-4,4 '-diphenyl ether-bismaleimides, N, N '-4,4 '-diphenyl sulphone (DPS)-bismaleimides, N, N '-4,4 '-dicyclohexyl methyl hydride-bismaleimides, N, N '-xyxylene-bismaleimides and N, the cohort that N '-diphenyl cyclohexane-bismaleimides is constituted.
4. battery electrode paste compound according to claim 2, wherein, described single maleimide is selected from phenyl maleimide, N-(neighbour-aminomethyl phenyl) maleimide, N-(-aminomethyl phenyl) maleimide, N-(right-aminomethyl phenyl) maleimide, N-cyclohexane maleimide, dimaleoyl imino phenol, dimaleoyl imino benzocyclobutene, phosphorous maleimide, the maleimide that contains siloxanes, N-(4-tetrahydroxy pyranose-oxygen phenyl) maleimide and 2, the cohort that 6-xylyl-maleimide is constituted.
5. battery electrode paste compound according to claim 4, wherein, described phosphorous maleimide is the maleimide that contains phosphonate ester.
6. battery electrode paste compound according to claim 1, wherein, described barbituric acid cording has the structure shown in the following formula
In the formula, R
1With R
2The system be independently selected from-H ,-CH
3,-C
2H
5,-C
6H
5,-CH (CH
3)
2,-CH
2CH (CH
3)
2,-CH
2CH
2CH (CH
3)
2, and-CH (CH
3)-(CH
2)
2-CH
3
7. battery electrode paste compound according to claim 1, wherein, the mol ratio of described maleimide and this barbituric acid is between the scope of 25:1 to 1:1.
8. battery electrode paste compound according to claim 1, wherein, the addition of described modified maleimide dispersant is 0.1 to 5 weight % of composition solid content gross weight.
9. battery electrode paste compound according to claim 1, wherein, described electrode active material is a positive active material.
10. battery electrode paste compound according to claim 9, wherein, described positive active material is to be selected from the cohort that lithium and cobalt oxides, lithium manganese oxide, lithium nickel oxide, iron lithium phosphate oxide and composition thereof are constituted.
11. battery electrode paste compound according to claim 1, wherein, described electrode active material is a negative electrode active material.
12. battery electrode paste compound according to claim 11, wherein, the cohort that mutually spherical carbon, natural graphite powder and composition thereof were constituted in the middle of described negative electrode active material was selected from.
13. battery electrode paste compound according to claim 1, wherein, described electrode active material accounts for composition gross weight 20 to 80 weight %.
14. battery electrode paste compound according to claim 1, wherein, described conductive additive is selected from the cohort that bulky grain graphite KS4, bulky grain graphite KS6, vapor deposition carbon fibre and granule carbon black SP are constituted.
15. battery electrode paste compound according to claim 1, wherein, described conductive additive has two key functional groups through surface treatment.
16. battery electrode paste compound according to claim 1, wherein, described conductive additive has vinyl functional group through the coupling agent modification.
17. battery electrode paste compound according to claim 16, wherein, described coupling agent is selected from the cohort that siloxanes coupling agent and oleic acid coupling agent are constituted.
18. battery electrode paste compound according to claim 1, wherein, described conductive additive accounts for composition gross weight 0.1 to 5 weight %.
19. battery electrode paste compound according to claim 1, wherein, described sticker is selected from difluoroethylene, acrylic resin and cohort that styrene butadiene rubbers constituted.
20. battery electrode paste compound according to claim 1, wherein, described sticker accounts for composition gross weight 0.1 to 15 weight %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101566888A CN100527491C (en) | 2006-12-30 | 2006-12-30 | Battery electrode paste compound containing modified maleimide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101566888A CN100527491C (en) | 2006-12-30 | 2006-12-30 | Battery electrode paste compound containing modified maleimide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101212052A CN101212052A (en) | 2008-07-02 |
| CN100527491C true CN100527491C (en) | 2009-08-12 |
Family
ID=39611831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101566888A Active CN100527491C (en) | 2006-12-30 | 2006-12-30 | Battery electrode paste compound containing modified maleimide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100527491C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086870A1 (en) * | 2014-12-05 | 2016-06-09 | 江苏华东锂电技术研究院有限公司 | Positive electrode composite material and lithium ion battery and preparation method therefor |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI411149B (en) | 2008-12-31 | 2013-10-01 | Ind Tech Res Inst | Lithium battery and fabrication method thereof |
| CN101807724B (en) * | 2009-02-16 | 2013-03-27 | 财团法人工业技术研究院 | Lithium battery and manufacturing method thereof |
| CN102044675A (en) * | 2009-10-23 | 2011-05-04 | 深圳市比克电池有限公司 | Lithium battery anode slurry additive, slurry, battery and preparation method |
| CN103050706B (en) * | 2013-01-09 | 2015-06-17 | 能动新材料南通有限公司 | Maleimide additive for lithium battery and corresponding lithium battery anode formula |
| TWI494350B (en) * | 2013-09-26 | 2015-08-01 | Univ Nat Taiwan Science Tech | Preparation method of oligomer and lithium battery |
| CN105449217B (en) * | 2014-08-11 | 2019-06-18 | 江苏华东锂电技术研究院有限公司 | Anode composite material and lithium ion battery |
| CN104269513B (en) * | 2014-08-26 | 2017-06-13 | 江苏华东锂电技术研究院有限公司 | Anode composite material and lithium ion battery with and preparation method thereof |
| CN104600317B (en) * | 2015-01-10 | 2017-04-26 | 易佰特新能源科技有限公司 | Preparation method of positive coating slurry and application of positive coating slurry in lithium ion battery |
| TWI579233B (en) | 2015-12-23 | 2017-04-21 | 財團法人工業技術研究院 | Additive formulation and compisition for lithium ion batteries and lithium ion batteries |
| CN105609869A (en) * | 2016-03-25 | 2016-05-25 | 国联汽车动力电池研究院有限责任公司 | High-specific-energy and high-safety lithium ion power battery based on high-nickel ternary material |
| CN105742706B (en) * | 2016-04-01 | 2018-06-29 | 朱政 | A kind of lithium battery anode additive |
| TWI602849B (en) * | 2016-11-18 | 2017-10-21 | 國立臺灣科技大學 | Oligomer and lithium battery |
| CN108232129A (en) * | 2016-12-21 | 2018-06-29 | 深圳市比克动力电池有限公司 | Lithium ion battery negative material, negative plate and lithium ion battery |
| CN107681154A (en) * | 2017-06-30 | 2018-02-09 | 福建猛狮新能源科技有限公司 | Lithium ion cell positive and preparation method thereof and preparation method of lithium ion battery |
| CN107464935A (en) * | 2017-07-07 | 2017-12-12 | 福建猛狮新能源科技有限公司 | Negative electrode of lithium ion battery and preparation method thereof and preparation method of lithium ion battery |
| CN108336356A (en) * | 2018-03-28 | 2018-07-27 | 广州鹏辉能源科技股份有限公司 | Positive electrode, positive plate and preparation method thereof and lithium ion battery |
| CN108470911A (en) * | 2018-03-28 | 2018-08-31 | 广州鹏辉能源科技股份有限公司 | Anode material for lithium-ion batteries, based lithium-ion battery positive plate and preparation method thereof and lithium ion battery |
| CN110987789B (en) * | 2018-10-02 | 2022-05-17 | 江西格林德能源有限公司 | Lithium ion battery pole piece adhesion testing device and operation method |
| CN112768702B (en) * | 2021-01-25 | 2022-10-28 | 珠海冠宇动力电池有限公司 | Positive plate and high-safety lithium ion battery thereof |
| CN114551783B (en) * | 2021-09-30 | 2023-08-15 | 万向一二三股份公司 | Foamed aluminum current collector positive plate and preparation method thereof |
-
2006
- 2006-12-30 CN CNB2006101566888A patent/CN100527491C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086870A1 (en) * | 2014-12-05 | 2016-06-09 | 江苏华东锂电技术研究院有限公司 | Positive electrode composite material and lithium ion battery and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101212052A (en) | 2008-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100527491C (en) | Battery electrode paste compound containing modified maleimide | |
| TWI332284B (en) | A battery electrode paste composition containing modified maleimides | |
| CN101504978B (en) | Lithium ionic cell positive plate made from ternary material and production method thereof | |
| CN105742639B (en) | Battery electrode paste composition | |
| CN106910886B (en) | Additive formula for lithium ion battery, electrode slurry composition and lithium ion battery | |
| EP2660904B1 (en) | Method for preparing graphene-like doped positive electrode material of lithium-ion battery | |
| CN105470473B (en) | Positive electrode active material and secondary battery | |
| WO2020078307A1 (en) | Negative electrode sheet and secondary battery | |
| CN112366351B (en) | Lithium-supplementing slow-release capsule, electrolyte thereof and lithium ion battery | |
| CN107546363B (en) | Negative electrode tab and lithium ion battery | |
| CN101752558A (en) | Lithium ion battery anode material and preparation method thereof | |
| WO2006069500A1 (en) | Manufacture method for positive electrode sheet of lithium-ion battery and positive electrode sheet and lithium-ion battery using the same | |
| CN107958997B (en) | Positive electrode slurry, positive electrode plate and lithium ion battery | |
| CN109904454B (en) | Silicon-containing polymer binder, preparation method thereof and application thereof in silicon-based electrode lithium ion battery | |
| CN106374110A (en) | Lithium ion battery cathode composite cathode, preparation method thereof, and lithium ion battery | |
| CN102280642A (en) | Application of alginate serving as adhesive in preparing electrode sheet | |
| Li et al. | Stabilize lithium metal anode through constructing a lithiophilic viscoelastic interface based on hydroxypropyl methyl cellulose | |
| KR20210131412A (en) | Ion conductive paste and its manufacturing method and application | |
| CN109037592A (en) | Lithium ion battery positive plate, preparation method thereof and lithium ion battery | |
| CN109786654A (en) | Porous electrode lithium ion battery and preparation method thereof | |
| CN113903981A (en) | Lithium ion battery and preparation method and application thereof | |
| CN111029584B (en) | Positive active material of lithium ion battery, preparation method and application thereof | |
| CN102569733B (en) | The preparation method of pulp of lithium ion battery, cell size and lithium ion battery | |
| CN106299245A (en) | Silica-based negative electrode and preparation method thereof and lithium ion battery | |
| CN113903980A (en) | Lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |