CN102760886A - Water-based conducting resin for lithium ion battery - Google Patents
Water-based conducting resin for lithium ion battery Download PDFInfo
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- CN102760886A CN102760886A CN2012102566630A CN201210256663A CN102760886A CN 102760886 A CN102760886 A CN 102760886A CN 2012102566630 A CN2012102566630 A CN 2012102566630A CN 201210256663 A CN201210256663 A CN 201210256663A CN 102760886 A CN102760886 A CN 102760886A
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- water
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- lithium ion
- ion battery
- conducting resin
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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
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Abstract
The invention discloses a water-based conducting resin for a lithium ion battery. The water-based conducting resin is characterized by consisting of the following components by mass percent: 1-5 percent of 8-Hydroxyquiuoline, 25-45 percent of graphite, 15-30 percent of acrylic acid copolymer, 0.5-3 percent of flax oil, 5-20 percent of isopropyl alcohol, 1-5 percent of KH560 and water, and the total mass percentage is 100. The water-based conducting resin has the advantages of environmental protection, high charge-discharge frequency, and easiness in embedding and removing ions.
Description
Technical field
The invention belongs to technical field of adhesive, relate to a kind of waterborne conductive glue that is used for lithium ion battery, specifically relate to a kind ofly be used to improve anode material for lithium-ion batteries LiMnO2 charging and put a number of times, improve, improve the adhesive of the corrosion resistance of electrode.
Background technology
Adhesive is one of critical material of lithium battery; It has significant effects to the distribution and the battery performance of anodal and active material; The optimal distribution of conducting resinl should be to be coated on anodal particle surface, and is with continuous the contacting of active material, thin as much as possible; Make electronics can arrive whole active particle surface, lithium ion is embedded under less overpotential more easily and deviate from active particle.The Kynoar (PVDF) that present employed adhesive is a hydrophobicity, it is relatively harsher to the workshop condition conditional request, has strengthened the cost of investment in workshop; Its employed solvent is a N monomethyl pyrrolidones (NMP).NMP not only price is more expensive, has improved the battery cost, and certain toxicity is arranged; Heated volatile can cause environmental pollution; Active material is distributed reach perfect condition, influence the embedding and deviate from of lithium ion, influence the number of times that discharges and recharges from positive electrode.Need develop a kind of environmentally friendly, and low price, it is desirable that active material is distributed, and discharges and recharges the high waterborne conductive glue of number of times.
Summary of the invention
The objective of the invention is to improve the number of times that discharges and recharges of lithium ion battery in order to solve the conducting resinl environmental protection, improve the decay resistance of electrode, the technical problem that prolongs the useful life of battery provides a kind of waterborne conductive glue that is used for lithium ion battery.
In order to achieve the above object, the technical scheme taked of the present invention is:
A kind of waterborne conductive glue that is used for lithium ion battery, content is 1-5% by 8-hydroxy-quinoline by mass percentage, graphite is 25-45%; Acrylic copolymer is 15-30%, and linseed oil is 0.5-3%, and isopropyl alcohol is 5-20%; KH560 is 1-5%, and surplus is that water is formed, and the gross mass degree is 100%; Wherein said acrylic copolymer molecular structure is:
Wherein, n is the 20-100 integer, and n2 is the integer of 20-40, and m is the integer of 30-100, and m1 is the integer of 1-3, and its weight average molecular weight is 10000-50000.Its product derives from hydroxy-ethyl acrylate, butylene olefin(e) acid or penetenoic acid and to the vinyl benzoic acid copolymer.
A kind of preparation method who is used for the waterborne conductive glue of lithium ion battery of the present invention is: the liquid component with technical scheme mixes earlier, adds solid constituent then and stirs, and on grinder, grinds, at last packing again.
Advantage and the beneficial effect that is used for the waterborne conductive glue of lithium ion battery of the present invention is:
L, environmental protection, coating are thin to be 5 μ m, and the conductance square resistance is 30 ohm;
2, discharge and recharge the number of times height, ion embeds easily and deviates from.
Embodiment
Embodiment 1:
This conducting resinl is prepared from (mass percentage content) by following set of dispense ratio:
8-hydroxy-quinoline 5%,
Graphite 37%,
Acrylic copolymer 30%,
Linseed oil 1%,
Isopropyl alcohol 5%,
KH560 2%，
Water 20%.
The preparation method mixes the liquid component in the technical formula component earlier, adds solid constituent then and stirs, and on grinder, grinds, at last packing again.
The embodiment effect: square resistance is 38 Ω, and the thickness of glue-line is 5 μ m.
Embodiment 2:
This conducting resinl is prepared from (mass percentage content) by following set of dispense ratio:
8-hydroxy-quinoline 5%,
Graphite 25%,
Acrylic copolymer 30%,
Linseed oil 3%,
Isopropyl alcohol 12%,
KH560 5%，
Water 20%.
The preparation method is with embodiment 1.
The embodiment effect: square resistance is 45 Ω, and the thickness of glue-line is 5 μ m.
Embodiment 3:
This conducting resinl is prepared from (mass percentage content) by following set of dispense ratio:
8-hydroxy-quinoline 3%,
Graphite 45%,
Acrylic copolymer 30%,
Linseed oil 1%,
Isopropyl alcohol 5%,
KH560 1%，
Water 15%.
The preparation method is with embodiment 1.
The embodiment effect: square resistance is 30, and the thickness of glue-line is 7 μ m.
Embodiment 4:
This conducting resinl is prepared from (mass percentage content) by following set of dispense ratio:
8-hydroxy-quinoline 2%,
Graphite 35%,
Acrylic copolymer 25%,
Linseed oil 1%,
Isopropyl alcohol 16%,
KH560 1%，
Water 20%.
The preparation method is with embodiment 1.
The embodiment effect: square resistance is 30 Ω, and the thickness of glue-line is 5 μ m.
Embodiment 5:
This conducting resinl is prepared from (mass percentage content) by following set of dispense ratio:
8-hydroxy-quinoline 2%,
Graphite 45%,
Acrylic copolymer 30%,
Linseed oil 3%,
Isopropyl alcohol 5%,
KH560 5%，
Water 10%.
The preparation method is with embodiment 1.
The embodiment effect: square resistance is 37 Ω, and the thickness of glue-line is 8 μ m.
Embodiment 6:
This conducting resinl is prepared from (mass percentage content) by following set of dispense ratio:
8-hydroxy-quinoline 3%,
Graphite 40%,
Acrylic copolymer 15%,
Linseed oil 3%,
Isopropyl alcohol 20%,
KH560 3%，
Water 16%.
The preparation method is with embodiment 1.
The embodiment effect: square resistance is 35 Ω, and the thickness of glue-line is 6 μ m.
Embodiment 7:
This adhesive is prepared from (mass percentage content) by following set of dispense ratio:
8-hydroxy-quinoline 2%,
Graphite 36%,
Acrylic copolymer 30%,
Linseed oil 2%,
Isopropyl alcohol 10%,
KH560 2%，
Water 18%.
The preparation method is with embodiment 1.
The embodiment effect: square resistance is 31 Ω, and the thickness of glue-line is 5 μ m.
Embodiment according to the invention only is used to technical scheme of the present invention is described, is not limited to the present invention.
Claims (1)
1. waterborne conductive glue that is used for lithium ion battery, it is characterized in that: content is 1-5% by 8-hydroxy-quinoline by mass percentage, graphite is 25-45%; Acrylic copolymer is 15-30%; Linseed oil is 0.5-3%, and isopropyl alcohol is 5-20%, and KH560 is 1-5%; Surplus is that water is formed, and the gross mass degree is 100%; Wherein said acrylic copolymer molecular structure is:
Wherein, n is the 20-100 integer, and n2 is the integer of 20-40, and m is the integer of 30-100, and m1 is the integer of 1-3, and its weight average molecular weight is 10000-50000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256663.0A CN102760886B (en) | 2012-07-24 | 2012-07-24 | Water-based conducting resin for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210256663.0A CN102760886B (en) | 2012-07-24 | 2012-07-24 | Water-based conducting resin for lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102760886A true CN102760886A (en) | 2012-10-31 |
| CN102760886B CN102760886B (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210256663.0A Expired - Fee Related CN102760886B (en) | 2012-07-24 | 2012-07-24 | Water-based conducting resin for lithium ion battery |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373480A (en) * | 2001-02-13 | 2002-10-09 | 国家淀粉及化学投资控股公司 | Conductive and resistance material with electrical stability for electronic apparatus |
| WO2011096505A1 (en) * | 2010-02-05 | 2011-08-11 | ナミックス株式会社 | Reducing agent composition for conductive metal paste |
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2012
- 2012-07-24 CN CN201210256663.0A patent/CN102760886B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373480A (en) * | 2001-02-13 | 2002-10-09 | 国家淀粉及化学投资控股公司 | Conductive and resistance material with electrical stability for electronic apparatus |
| WO2011096505A1 (en) * | 2010-02-05 | 2011-08-11 | ナミックス株式会社 | Reducing agent composition for conductive metal paste |
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| CN102760886B (en) | 2014-09-10 |
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Effective date of registration: 20181121 Address after: 211800 Room 242, Building 13, Buyue Road, 29 Qiaolin Street, Pukou District, Nanjing City, Jiangsu Province Patentee after: NANJING CHANGYUAN INFORMATION TECHNOLOGY CO.,LTD. Address before: No. 2, Mengxi Road, Zhenjiang, Jiangsu Province, Jiangsu Patentee before: Jiangsu University of Science and Technology |
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Effective date of registration: 20201229 Address after: 314400 No.37 nanpingqiao, Minlian village, Dingqiao Town, Haining City, Jiaxing City, Zhejiang Province Patentee after: Haining Hesheng Color Printing Co.,Ltd. Address before: 211800 Room 242, Building 13, Buyue Road, 29 Qiaolin Street, Pukou District, Nanjing City, Jiangsu Province Patentee before: NANJING CHANGYUAN INFORMATION TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20140910 |
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