CN104409737A - Adhesive special for power energy-storage polymer positive electrode and negative electrode of lithium battery - Google Patents
Adhesive special for power energy-storage polymer positive electrode and negative electrode of lithium battery Download PDFInfo
- Publication number
- CN104409737A CN104409737A CN201410779240.6A CN201410779240A CN104409737A CN 104409737 A CN104409737 A CN 104409737A CN 201410779240 A CN201410779240 A CN 201410779240A CN 104409737 A CN104409737 A CN 104409737A
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- CN
- China
- Prior art keywords
- parts
- adhesive
- lithium battery
- power energy
- storage polymer
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
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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 discloses an adhesive special for a power energy-storage polymer positive electrode and a negative electrode of a lithium battery, and relates to an adhesive. The adhesive comprises the following components in parts by weight: 120 parts of an acrylic acid emulsion, 20-90 parts of an emulsifier, 20 parts of lithium hydroxide, 1-10 parts of polyacrylamide, 30 parts of a filler, 300 parts of diluents, 0.5-9 parts of carboxymethylcellulose, 0.1-6 parts of an antioxidant and 1.5-20 parts of an active agent. The adhesive special for the power energy-storage polymer positive electrode and the negative electrode of the lithium battery takes water as a solvent, and no organic solvent is volatilized in pulp combining and coating processes, so that the adhesive is safe, energy-saving and environment-friendly. A water-based adhesive is of excellent compatibility with a lithium ion electrolyte; if the adhesive is dipped in the electrolyte for 24 hours, the swelling ratio of an adhesive film is not greater than 0.8%, and the stability of the size of the electrode can be kept. The water-based adhesive is copolymerized by multi-element organic acid ester, the excellent balance of rigidity and flexibility of the adhesive film is realized, and the lithium ion battery manufactured by utilizing the water-based adhesive has the excellent cycle performance.
Description
Technical field
What the present invention relates to is a kind of adhesive, is specifically related to a kind of lithium battery power energy storage polymer both positive and negative polarity adhesive specially
Background technology
The adhesive that traditional lithium battery both positive and negative polarity adopts generally adopts PVDF, and it exists some defects: can not be bonding well with copper aluminium foil, pole piece make and easily come off in battery charge and discharge process, dry linting, adhesive property is poor; Not resistance to brute force grinding and stirring, easy breakdown of emulsion; Stable performance can not be kept in lithium battery anode oxidation environment and cathodic reduction environment; And not good with lithium battery electrolytes compatibility yet, can not the stability of holding electrode size, thus greatly have impact on the overall performance of lithium battery.
Summary of the invention
For the deficiency that prior art exists, the present invention seeks to be to provide a kind of lithium battery power energy storage polymer both positive and negative polarity adhesive specially, bond properties is good, the overall good performance of lithium battery can be kept, result of use is good, and the lithium ion battery that employing aqueous binder is made has good cycle performance.
To achieve these goals, the present invention realizes by the following technical solutions: lithium battery power energy storage polymer both positive and negative polarity adhesive specially, and lithium battery power energy storage polymer both positive and negative polarity adhesive specially, is made up of the component of following weight proportion: acrylic emulsion 120 parts, emulsifying agent 20-90 part, lithium hydroxide 20 parts, polyacrylamide 1-10 part, filler 30 parts, diluent 300 parts, carboxymethyl cellulose 0.5-9 part, antioxidant 0.1-6 part, activating agent 1.5-20 part.
As preferably, described lithium battery power energy storage polymer both positive and negative polarity adhesive specially is made up of the component of following weight proportion: acrylic emulsion 120 parts, emulsifying agent 55 parts, lithium hydroxide 20 parts, polyacrylamide 5 parts, filler 30 parts, diluent 300 parts, carboxymethyl cellulose 5 parts, antioxidant 3 parts, activating agent 10 parts.
As preferably, the preparation method of described lithium battery power energy storage polymer both positive and negative polarity adhesive specially is: take each component of above-mentioned weight proportion, pour in container, undertaken stirring at least 15 minutes by stirring rod, carboxymethyl cellulose wherein, antioxidant, activating agent the middle and later periods heat into, after each component fully dissolves mixing.
Beneficial effect of the present invention: bond properties is good, can keep the overall good performance of lithium battery, result of use is good, and the lithium ion battery that employing aqueous binder is made has good cycle performance.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
This embodiment is by the following technical solutions: lithium battery power energy storage polymer both positive and negative polarity adhesive specially, lithium battery power energy storage polymer both positive and negative polarity adhesive specially, be made up of the component of following weight proportion: acrylic emulsion 120 parts, emulsifying agent 20-90 part, lithium hydroxide 20 parts, polyacrylamide 1-10 part, filler 30 parts, diluent 300 parts, carboxymethyl cellulose 0.5-9 part, antioxidant 0.1-6 part, activating agent 1.5-20 part.
It should be noted that, described lithium battery power energy storage polymer both positive and negative polarity adhesive specially is made up of the component of following weight proportion: acrylic emulsion 120 parts, emulsifying agent 55 parts, lithium hydroxide 20 parts, polyacrylamide 5 parts, filler 30 parts, diluent 300 parts, carboxymethyl cellulose 5 parts, antioxidant 3 parts, activating agent 10 parts.
In addition, the preparation method of described lithium battery power energy storage polymer both positive and negative polarity adhesive specially is: take each component of above-mentioned weight proportion, pour in container, undertaken stirring at least 15 minutes by stirring rod, carboxymethyl cellulose wherein, antioxidant, activating agent the middle and later periods heat into, after each component fully dissolves mixing.
The adhesive property of this embodiment and copper aluminium foil is strong, pole piece make and do not come off in battery charge and discharge process, not dry linting, adhesive property is better than PVDF; Adhesive take water as solvent, and meeting below freezing is frozen, and temperature recovery can recover mobility to time above freezing, can not breakdown of emulsion and property retention is constant; Resistance to brute force grinding and stirring, not breakdown of emulsion; Heat decomposition temperature, more than 300 DEG C, has very high thermal stability; Can stable performance be kept in lithium ion cell positive oxidation environment and cathodic reduction environment, be applicable to cobalt system, manganese system, LiFePO4 and plumbago-carbon negative pole material.
The aqueous binder of this embodiment take water as solvent, organic solvent-free volatilization in conjunction slurry and coating process, safety energy-conserving environment protection.Aqueous binder and lithium-ion electrolyte have good compatibility, and the swelling ratio soaking 24h glued membrane is in the electrolytic solution not more than 0.8%, can the stability of holding electrode size.
The aqueous binder of this embodiment adopts multicomponent organic acid ester copolymerization, and achieve glued membrane rigidity and flexible perfection balance, the lithium ion battery that employing aqueous binder is made has good cycle performance.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (3)
1. lithium battery power energy storage polymer both positive and negative polarity adhesive specially, it is characterized in that, be made up of the component of following weight proportion: acrylic emulsion 120 parts, emulsifying agent 20-90 part, lithium hydroxide 20 parts, polyacrylamide 1-10 part, filler 30 parts, diluent 300 parts, carboxymethyl cellulose 0.5-9 part, antioxidant 0.1-6 part, activating agent 1.5-20 part.
2. lithium battery power energy storage polymer both positive and negative polarity adhesive specially according to claim 1, it is characterized in that, described lithium battery power energy storage polymer both positive and negative polarity adhesive specially is made up of the component of following weight proportion: acrylic emulsion 120 parts, emulsifying agent 55 parts, lithium hydroxide 20 parts, polyacrylamide 5 parts, filler 30 parts, diluent 300 parts, carboxymethyl cellulose 5 parts, antioxidant 3 parts, activating agent 10 parts.
3. lithium battery power energy storage polymer both positive and negative polarity adhesive specially according to claim 1, it is characterized in that, the preparation method of described lithium battery power energy storage polymer both positive and negative polarity adhesive specially is: take each component of above-mentioned weight proportion, pour in container, undertaken stirring at least 15 minutes by stirring rod, carboxymethyl cellulose wherein, antioxidant, activating agent the middle and later periods heat into, after each component fully dissolves mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779240.6A CN104409737B (en) | 2014-12-17 | 2014-12-17 | Lithium battery power energy storage polymer positive and negative anodes adhesive specially |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779240.6A CN104409737B (en) | 2014-12-17 | 2014-12-17 | Lithium battery power energy storage polymer positive and negative anodes adhesive specially |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104409737A true CN104409737A (en) | 2015-03-11 |
| CN104409737B CN104409737B (en) | 2018-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410779240.6A Expired - Fee Related CN104409737B (en) | 2014-12-17 | 2014-12-17 | Lithium battery power energy storage polymer positive and negative anodes adhesive specially |
Country Status (1)
| Country | Link |
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| CN (1) | CN104409737B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106398597A (en) * | 2016-08-31 | 2017-02-15 | 北京汽车股份有限公司 | Water-based adhesive and preparation method thereof, as well as battery |
| CN110797538A (en) * | 2019-11-07 | 2020-02-14 | 惠州亿纬锂能股份有限公司 | Silicon-based negative electrode binder, preparation method thereof and application thereof in lithium ion battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435461A (en) * | 2002-02-01 | 2003-08-13 | 张庆华 | Elastic emulsion adhesive |
| US20080293885A1 (en) * | 2005-04-20 | 2008-11-27 | Nippon Shokubai Co., Ltd. | Reactive Emulsion and Process for Producing the Same |
| CN101880512A (en) * | 2010-07-14 | 2010-11-10 | 浙江德尚化工科技有限公司 | Aqueous binding agent and preparation method thereof |
| CN102206286A (en) * | 2011-05-16 | 2011-10-05 | 北京理工大学 | Preparation method of lithium carboxymethyl cellulose for lithium battery |
| CN102732117A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Multifunctional water-base high light emulsion paint suitable for various substrates |
-
2014
- 2014-12-17 CN CN201410779240.6A patent/CN104409737B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435461A (en) * | 2002-02-01 | 2003-08-13 | 张庆华 | Elastic emulsion adhesive |
| US20080293885A1 (en) * | 2005-04-20 | 2008-11-27 | Nippon Shokubai Co., Ltd. | Reactive Emulsion and Process for Producing the Same |
| CN101880512A (en) * | 2010-07-14 | 2010-11-10 | 浙江德尚化工科技有限公司 | Aqueous binding agent and preparation method thereof |
| CN102206286A (en) * | 2011-05-16 | 2011-10-05 | 北京理工大学 | Preparation method of lithium carboxymethyl cellulose for lithium battery |
| CN102732117A (en) * | 2012-06-08 | 2012-10-17 | 广州立邦涂料有限公司 | Multifunctional water-base high light emulsion paint suitable for various substrates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106398597A (en) * | 2016-08-31 | 2017-02-15 | 北京汽车股份有限公司 | Water-based adhesive and preparation method thereof, as well as battery |
| CN110797538A (en) * | 2019-11-07 | 2020-02-14 | 惠州亿纬锂能股份有限公司 | Silicon-based negative electrode binder, preparation method thereof and application thereof in lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104409737B (en) | 2018-08-07 |
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