CN103468211A - Abrasive and coating slurry of lithium-ion power battery diaphragm and preparation methods thereof - Google Patents
Abrasive and coating slurry of lithium-ion power battery diaphragm and preparation methods thereof Download PDFInfo
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- CN103468211A CN103468211A CN2013104397063A CN201310439706A CN103468211A CN 103468211 A CN103468211 A CN 103468211A CN 2013104397063 A CN2013104397063 A CN 2013104397063A CN 201310439706 A CN201310439706 A CN 201310439706A CN 103468211 A CN103468211 A CN 103468211A
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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
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides an abrasive and coating slurry of a lithium-ion power battery diaphragm and preparation methods thereof. The coating slurry comprises 10-25% of chemical binder, 1-3% of thickening agent, 25-55% of abrasive slurry, 0.1-0.3% of defoaming agent, 0.1-0.3% of wetting agent, 0.1-0.3% of dispersing agent and 0.1-0.3% of levelling agent by w/w. The abrasive, the coating slurry and the preparation methods have the beneficial effects that relative to lithium-ion power battery diaphragms disclosed by the prior art, aluminium oxide is not used in the abrasive slurry, so that aluminium oxide can not carry out chemical reaction with lithium iron phosphate in positive plates of lithium batteries, and trilithium aluminate (Li3AlO3) can not be generated; therefore the problem of puncture of the diaphragm does not exist in a battery using process, so that the safety of a lithium battery can be improved, and the service life of the lithium battery can be prolonged.
Description
technical field
The present invention relates to a kind of abrasive for the lithium-ion-power cell barrier film, coating sizing-agent and preparation method thereof.
Background technology
Chinese patent literature CN102751483A discloses a kind of lithium-ion-power cell barrier film and preparation method thereof, has used the coating sizing-agent of 40 50% precipitator method barium sulfate (w/w) and 1 5% aluminium sesquioxide (w/w) in the battery isolating film in the document.But also there is certain hidden danger in this battery isolating film aspect security.This be because, the coating sizing-agent in the document contains aluminium sesquioxide, and aluminium sesquioxide is after making battery, can with positive plate of lithium battery in iron lithium phosphate generation chemical reaction, generate aluminic acid three lithium (Li
3alO
3), and aluminic acid three lithiums are spinel structures, in the process of using at battery, easily puncture barrier film, cause the positive and negative electrode short circuit of lithium cell, gently make lithium cell reduction of service life, heavy cause the lithium cell heating and the generation battery explosion.
summary of the invention
In order to overcome the problems referred to above, the present invention provides to society the abrasive that can be used for the lithium-ion-power cell barrier film that a kind of safety performance is good.
Second purpose of the present invention is to provide a kind of preparation method of described abrasive.
The 3rd purpose of the present invention is to provide the coating sizing-agent that the described abrasive of a kind of use is made.
The 4th purpose of the present invention is to provide a kind of preparation method of coating sizing-agent.
With respect to first goal of the invention, technical scheme of the present invention is: a kind of abrasive of lithium-ion-power cell barrier film is provided, comprises the following component of weight percent,
Aluminium nitride 25-55%
N, N-Methyl pyrrolidone 1-3%
Vinyl pyrrolidone 1-3%
Carbonic acid divinyl ester 1-3%
Organic fluorine dispersion agent 0.01-1%
The deionized water surplus.
As improvement of the present invention, described organic fluorine dispersion agent is the FSWET-1010 of Du Pont organic fluorine dispersion agent.
This is the preparation method that a kind of abrasive of lithium-ion-power cell barrier film also is provided, component and ratio in above-mentioned abrasive, various components are inserted in dispersion machine, in dispersion machine, disperse to stir at least 15 minutes, then, transfer in shredder, by the zirconium dioxide grinding bead, grind 20-50 hour, make ground slurry, standby.
The present invention also provides a kind of coating sizing-agent of lithium-ion-power cell barrier film, comprises the following component of weight percent,
Chemical industry binder 10-25%
Thickening material 1-3%
Ground slurry 25-55%
Defoamer 0.1-0.3%
Wetting agent 0.1-0.3%
Dispersion agent 0.1-0.3%
Flow agent 0.1-0.3%.
As improvement of the present invention, described chemical industry binder is SBR carboxylic styrene butadiene latex, carboxylic styrene-butadiene rubber dispersion liquid, polyurethane aqueous dispersion liquid, vinylformic acid-primary amine copolymer emulsion, vinylformic acid-primary amine copolymerization dispersion liquid, vinylidene solvent-borne type dispersion liquid or vinylidene aqueous liquid dispersion.
As improvement of the present invention, described thickening material is Xylo-Mucine or associative thickener.
The present invention also provides a kind of preparation method of coating sizing-agent, in component and the ratio of above-mentioned coating sizing-agent, inserts in container and is uniformly mixed and gets final product.
The present invention, for the disclosed lithium-ion-power cell barrier film of Chinese patent literature CN102751483A, owing to there not being aluminium sesquioxide in ground slurry, thereby, after making battery, does not just have aluminic acid three lithium (Li
3alO
3) generate, therefore, in the process of using at battery, do not have the problem that punctures barrier film, can improve like this security of lithium cell and the work-ing life of prolongation lithium cell; Again, aluminium nitride has good heat conductivility, can accelerate the radiating rate of lithium cell, can improve equally the work-ing life of lithium cell, thereby can reduce the use cost of lithium cell.
Embodiment
One, ground slurry
The ground slurry of following each embodiment all adopts following method preparation, component and ratio in the abrasive of following each embodiment, various components are inserted in dispersion machine, in dispersion machine, disperse to stir at least 15 minutes, then, transfer in shredder, by the zirconium dioxide grinding bead, grind 20-50 hour, make ground slurry, standby.
Embodiment 1
Aluminium nitride 25%
N, N-Methyl pyrrolidone 1%
Vinyl pyrrolidone 1%
Carbonic acid divinyl ester 1%
Organic fluorine dispersion agent 0.01%
The deionized water surplus.
Embodiment 2
Aluminium nitride 30%
N, N-Methyl pyrrolidone 2%
Vinyl pyrrolidone 2%
Carbonic acid divinyl ester 2%
Organic fluorine dispersion agent 0.1%
The deionized water surplus.
Embodiment 3
Aluminium nitride 35%
N, N-Methyl pyrrolidone 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluorine dispersion agent 0.3%
The deionized water surplus.
Embodiment 4
Aluminium nitride 40%
N, N-Methyl pyrrolidone 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluorine dispersion agent 0.5%
The deionized water surplus.
Embodiment 5
Aluminium nitride 45%
N, N-Methyl pyrrolidone 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluorine dispersion agent 0.7%
The deionized water surplus.
Embodiment 6
Aluminium nitride 50%
N, N-Methyl pyrrolidone 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluorine dispersion agent 1%
The deionized water surplus.
Embodiment 7
Aluminium nitride 55%
N, N-Methyl pyrrolidone 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluorine dispersion agent 1%
The deionized water surplus.
Two, coating sizing-agent
The preparation method of following each coating sizing-agent, all can, in component and the ratio of the coating sizing-agent of following each embodiment, insert in container and be uniformly mixed and get final product.
Chemical industry binder in following each embodiment can be selected any one in SBR carboxylic styrene butadiene latex, carboxylic styrene-butadiene rubber dispersion liquid, polyurethane aqueous dispersion liquid, vinylformic acid-primary amine copolymer emulsion, vinylformic acid-primary amine copolymerization dispersion liquid, vinylidene solvent-borne type dispersion liquid and vinylidene aqueous liquid dispersion, and the phase trans-substitution is used.
Thickening material in following each embodiment can be selected any one in Xylo-Mucine and associative thickener, and the phase trans-substitution is used.
Ground slurry in following each embodiment can be selected any one embodiment in above-mentioned enforcement 1 to embodiment 7.
Embodiment 8
SBR carboxylic styrene butadiene latex 10%
Xylo-Mucine 1%
Ground slurry (adopting embodiment 1) 25%
Defoamer 0.1%
Wetting agent 0.1%
Dispersion agent 0.1%
Flow agent 0.1%.
Embodiment 9
Carboxylic styrene-butadiene rubber dispersion liquid 15%
Associative thickener 2%
Ground slurry (adopting embodiment 2) 30%
Defoamer 0.2%
Wetting agent 0.2%
Dispersion agent 0.2%
Flow agent 0.2%.
Embodiment 10
Polyurethane aqueous dispersion liquid 20%
Xylo-Mucine 3%
Ground slurry (adopting embodiment 3) 35%
Defoamer 0.3%
Wetting agent 0.3%
Dispersion agent 0.3%
Flow agent 0.3%.
Embodiment 11
Vinylformic acid-primary amine copolymer emulsion 25%
Associative thickener 3%
Ground slurry (adopting embodiment 4) 40%
Defoamer 0.3%
Wetting agent 0.3%
Dispersion agent 0.3%
Flow agent 0.3%.
Embodiment 12
Vinylformic acid-primary amine copolymerization dispersion liquid 25%
Xylo-Mucine 3%
Ground slurry (adopting embodiment 5) 45%
Defoamer 0.3%
Wetting agent 0.3%
Dispersion agent 0.3%
Flow agent 0.3%.
Embodiment 13
Vinylidene solvent-borne type dispersion liquid 25%
Associative thickener 3%
Ground slurry (adopting embodiment 6) 50%
Defoamer 0.3%
Wetting agent 0.3%
Dispersion agent 0.3%
Flow agent 0.3%.
Embodiment 14
Vinylidene aqueous liquid dispersion 25%
Xylo-Mucine 3%
Ground slurry (adopting embodiment 7) 55%
Defoamer 0.3%
Wetting agent 0.3%
Dispersion agent 0.3%
Flow agent 0.3%.
By embodiment 8 to embodiment 14 described coating sizing-agents, be coated on respectively on micropore basal membrane, coating thickness, in 10 μ m ± 0.5 μ m scope, adopts following examination criteria: EN 29073-T1; With main a few money battery isolating films of the similar thickness of external import, compare, its result is as follows:
As can be seen from the above table, not only all properties index has all reached the standard of external import, and increases on air penetrability, closed pore temperature and three Performance figures of breaking temperature.The present invention, for the disclosed lithium-ion-power cell barrier film of Chinese patent literature CN102751483A, owing to there not being aluminium sesquioxide, thereby, after making battery, does not just have aluminic acid three lithium (Li
3alO
3) generate, therefore, in the process of using at battery, do not have the problem that punctures barrier film, can improve like this security of lithium cell and the work-ing life of prolongation lithium cell; Moreover aluminium nitride has good heat conductivility, can accelerate the radiating rate of lithium cell, the work-ing life of lithium cell can be improved equally, thereby the use cost of lithium cell can be reduced.
Claims (7)
1. the abrasive of a lithium-ion-power cell barrier film is characterized in that: comprise the following component of weight percent,
Aluminium nitride 25-55%
N, N-Methyl pyrrolidone 1-3%
Vinyl pyrrolidone 1-3%
Carbonic acid divinyl ester 1-3%
Organic fluorine dispersion agent 0.01-1%
The deionized water surplus.
2. the abrasive of a kind of lithium-ion-power cell barrier film according to claim 1, it is characterized in that: described organic fluorine dispersion agent is the FSWET-1010 of Du Pont organic fluorine dispersion agent.
3. the preparation method of the abrasive of a lithium-ion-power cell barrier film, it is characterized in that: in component and the ratio of abrasive claimed in claim 1, various components are inserted in dispersion machine, in dispersion machine, disperse to stir at least 15 minutes, then, transfer in shredder, by the zirconium dioxide grinding bead, grind 20-50 hour, make ground slurry, standby.
4. the coating sizing-agent of a lithium-ion-power cell barrier film is characterized in that: comprise the following component of weight percent,
Chemical industry binder 10-25%
Thickening material 1-3%
Ground slurry 25-55%
Defoamer 0.1-0.3%
Wetting agent 0.1-0.3%
Dispersion agent 0.1-0.3%
Flow agent 0.1-0.3%.
5. according to the coating sizing-agent of the described a kind of lithium-ion-power cell barrier film of claim 4, it is characterized in that: described chemical industry binder is SBR carboxylic styrene butadiene latex, carboxylic styrene-butadiene rubber dispersion liquid, polyurethane aqueous dispersion liquid, vinylformic acid-primary amine copolymer emulsion, vinylformic acid-primary amine copolymerization dispersion liquid, vinylidene solvent-borne type dispersion liquid or vinylidene aqueous liquid dispersion.
6. according to the coating sizing-agent of the described a kind of lithium-ion-power cell barrier film of claim 4 or 5, it is characterized in that: described thickening material is Xylo-Mucine or associative thickener.
7. the preparation method of a coating sizing-agent, is characterized in that: in component and the ratio of coating sizing-agent claimed in claim 4, insert in container and be uniformly mixed and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104397063A CN103468211A (en) | 2013-09-25 | 2013-09-25 | Abrasive and coating slurry of lithium-ion power battery diaphragm and preparation methods thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104397063A CN103468211A (en) | 2013-09-25 | 2013-09-25 | Abrasive and coating slurry of lithium-ion power battery diaphragm and preparation methods thereof |
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| CN103468211A true CN103468211A (en) | 2013-12-25 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006310010A (en) * | 2005-04-27 | 2006-11-09 | Matsushita Electric Ind Co Ltd | Lithium ion secondary battery |
| CN101436654A (en) * | 2007-11-13 | 2009-05-20 | 深圳市慧通天下科技股份有限公司 | Ferric phosphate lithium type safety high power lithium ion battery |
| JP2012009283A (en) * | 2010-06-24 | 2012-01-12 | Fdk Corp | Lithium-ion secondary battery |
| CN102420300A (en) * | 2011-12-07 | 2012-04-18 | 保定市山河日月实业有限公司 | Method for preparing lithium ion battery diaphragm |
| CN102437302A (en) * | 2011-11-25 | 2012-05-02 | 东莞市比比克电子科技有限公司 | Lithium ion battery diaphragm and high temperature thermal-stable lithium ion battery |
| CN102569680A (en) * | 2012-02-29 | 2012-07-11 | 东莞市比比克电子科技有限公司 | Lithium ion secondary battery case with thermal insulation layer, and lithium ion battery |
| CN102751483A (en) * | 2012-07-18 | 2012-10-24 | 中国科学院福建物质结构研究所 | Layered rich-lithium-manganese-based solid-solution anode material of lithium ion battery and method for preparing anode material |
| CN102751463A (en) * | 2012-07-15 | 2012-10-24 | 湛江市鑫满矿业有限公司 | Lithium-ion power battery isolating membrane and preparation method thereof |
-
2013
- 2013-09-25 CN CN2013104397063A patent/CN103468211A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006310010A (en) * | 2005-04-27 | 2006-11-09 | Matsushita Electric Ind Co Ltd | Lithium ion secondary battery |
| CN101436654A (en) * | 2007-11-13 | 2009-05-20 | 深圳市慧通天下科技股份有限公司 | Ferric phosphate lithium type safety high power lithium ion battery |
| JP2012009283A (en) * | 2010-06-24 | 2012-01-12 | Fdk Corp | Lithium-ion secondary battery |
| CN102437302A (en) * | 2011-11-25 | 2012-05-02 | 东莞市比比克电子科技有限公司 | Lithium ion battery diaphragm and high temperature thermal-stable lithium ion battery |
| CN102420300A (en) * | 2011-12-07 | 2012-04-18 | 保定市山河日月实业有限公司 | Method for preparing lithium ion battery diaphragm |
| CN102569680A (en) * | 2012-02-29 | 2012-07-11 | 东莞市比比克电子科技有限公司 | Lithium ion secondary battery case with thermal insulation layer, and lithium ion battery |
| CN102751463A (en) * | 2012-07-15 | 2012-10-24 | 湛江市鑫满矿业有限公司 | Lithium-ion power battery isolating membrane and preparation method thereof |
| CN102751483A (en) * | 2012-07-18 | 2012-10-24 | 中国科学院福建物质结构研究所 | Layered rich-lithium-manganese-based solid-solution anode material of lithium ion battery and method for preparing anode material |
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Application publication date: 20131225 |