CN113725404A - Lithium ion battery negative electrode slurry, negative electrode plate and preparation method thereof - Google Patents
Lithium ion battery negative electrode slurry, negative electrode plate and preparation method thereof Download PDFInfo
- Publication number
- CN113725404A CN113725404A CN202010454766.2A CN202010454766A CN113725404A CN 113725404 A CN113725404 A CN 113725404A CN 202010454766 A CN202010454766 A CN 202010454766A CN 113725404 A CN113725404 A CN 113725404A
- Authority
- CN
- China
- Prior art keywords
- negative electrode
- electrode plate
- lithium ion
- slurry
- ion battery
- 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.)
- Pending
Links
- 239000011267 electrode slurry Substances 0.000 title claims abstract description 32
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000003756 stirring Methods 0.000 claims description 48
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical group CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 14
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 13
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 13
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 13
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000002562 thickening agent Substances 0.000 claims description 11
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 10
- 239000006258 conductive agent Substances 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000007773 negative electrode material Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910021383 artificial graphite Inorganic materials 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 6
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims description 2
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002070 nanowire Substances 0.000 claims description 2
- 229910021382 natural graphite Inorganic materials 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 10
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 230000005012 migration Effects 0.000 abstract description 4
- 238000013508 migration Methods 0.000 abstract description 4
- 239000002391 graphite-based active material Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyoxyethylene Polymers 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006257 cathode slurry Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
Classifications
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
-
- 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
-
- 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
- H01M4/624—Electric conductive fillers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a lithium ion battery negative electrode slurry, a negative electrode plate and a preparation method thereof. According to the invention, by optimizing the negative electrode slurry, the yield of the high-surface-density negative electrode plate coated with the slurry, the bonding force of the high-surface-density negative electrode plate and the wettability of the electrolyte are improved, the migration rate of lithium ions is increased, the internal resistance of the battery is reduced, and the performance of the battery is improved.
Description
Technical Field
The invention belongs to the technical field of lithium ion batteries, and particularly relates to a lithium ion battery negative electrode slurry, a negative electrode plate and a preparation method thereof.
Background
The lithium ion battery has the advantages of high energy density, small self-discharge, no memory effect, environmental protection and the like, and is widely applied to the fields of 3C products and new energy electric vehicles. But at the present time, many enterprises have begun to take high areal density routes based on energy density and cost considerations. The high-surface-density pole piece reduces the using amount of a current collector and a diaphragm to a certain extent, so that the cost is reduced, once the surface density requirement of the pole piece is higher than a certain value, the used slurry requirement is extremely high, the prepared pole piece is easy to fall off powder and is difficult to be soaked by electrolyte, the transmission distance of lithium ions is increased, the internal resistance is increased, and the performance of the lithium ion battery is seriously influenced. Based on the above technical deficiencies, there is a need to develop a slurry capable of satisfying the requirement of a high areal density pole piece and a high areal density pole piece.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a lithium ion battery negative electrode slurry, a negative electrode plate and a preparation method thereof, aiming at optimizing the negative electrode slurry to improve the electrolyte wettability and the adhesive force of the high-surface-density negative electrode plate, reduce the internal resistance of the battery and improve the performance of the battery.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a lithium ion battery negative pole slurry, a negative pole piece and a preparation method thereof, wherein the negative pole slurry comprises a negative pole active material, a conductive agent, a thickening agent, an adhesive and a negative pole additive, the negative pole piece is prepared from the negative pole slurry, and the preparation method comprises the following steps:
s1: adding a proper amount of deionized water into a stirring kettle, then adding an equivalent amount of thickening agent, and stirring for fully dissolving;
s2: adding equivalent negative electrode active material and equivalent conductive agent into another stirring kettle, mixing uniformly, pouring the solution in S1 into the stirring kettle, and continuing stirring;
s3: adding an equivalent amount of the adhesive into the suspension prepared in S2, stirring for 30min, adding a proper amount of a negative electrode additive, and stirring for 5-10 min to prepare negative electrode slurry;
s4: and (5) uniformly coating the negative electrode slurry prepared in the step (S4) on the surface of a copper current collector, and drying to obtain the negative electrode plate.
The weight ratio of the negative electrode active material to the conductive agent to the thickening agent to the dry powder of the adhesive is 93-97% to 0.5-2.5% to 1.0-2.0% to 1.0-2.5%, and the weight of the negative electrode additive is 0.5-2% of the weight of the dry powder. Furthermore, the weight ratio of the negative active material, the conductive agent, the thickening agent and the dry powder of the adhesive is 94-96%: 0.5-2.0%: 1.0-1.5%: 1.3-2.5%.
Further, the negative active material is one or more of artificial graphite, natural graphite, silicon carbon, silicon monoxide and silicon nanowires.
Further, the conductive agent is one or more of carbon nanotubes, conductive carbon fibers, conductive carbon black and conductive graphite, and is preferably conductive carbon fibers and conductive carbon black.
Further, the thickening agent is a mixture of sodium carboxymethylcellulose and polyethylene oxide, and the addition amount of the polyethylene oxide accounts for 10% -50% of the weight of the thickening agent; the adhesive is one or more of styrene-butadiene rubber emulsion, polyacrylic acid emulsion and polyacrylonitrile.
Further, the negative electrode additive is octanol.
The invention has the beneficial effects that: in the negative electrode slurry prepared by the invention, polyoxyethylene replaces part of sodium carboxymethylcellulose, and is matched with the used adhesive, so that the adhesive force of the pole piece can be improved to a certain extent, and meanwhile, the polyoxyethylene serving as a polymer solid electrolyte has a certain lithium ion migration capacity and can improve the ionic conductivity of the pole piece; octanol is added into the slurry, so that the viscosity of the slurry can be increased when the slurry is coated at a low shear rate, the coating yield is improved, the porosity of the high-surface-density pole piece can be improved, the pole piece electrolyte infiltration is improved, and the lithium ion migration rate is improved.
Detailed Description
The present invention is described in detail below with reference to specific embodiments, and the description in this section is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
Example 1:
s1: adding a proper amount of deionized water into a stirring kettle, then adding 1.2wt% of sodium carboxymethylcellulose and polyethylene oxide, and stirring for fully dissolving;
s2: adding 95.8wt% of artificial graphite active material, 1wt% of conductive carbon fiber and conductive carbon black into another stirring kettle, uniformly mixing, pouring the sodium carboxymethylcellulose solution in S1 into the stirring kettle, and continuously stirring;
s3: adding 2.0wt% of styrene-butadiene rubber emulsion into the suspension prepared by S2, stirring for 30min, adding 0.5wt% of octanol, and stirring for 10min to prepare negative electrode slurry;
s4: and (5) uniformly coating the negative electrode slurry prepared in the step (S4) on the surface of a copper current collector, and drying to obtain the negative electrode plate.
Example 2:
s1: adding a proper amount of deionized water into a stirring kettle, then adding 1.2wt% of sodium carboxymethylcellulose and polyethylene oxide, and stirring for fully dissolving;
s2: adding 95.8wt% of artificial graphite active material, 1wt% of conductive carbon fiber and conductive carbon black into another stirring kettle, uniformly mixing, pouring the sodium carboxymethylcellulose solution in S1 into the stirring kettle, and continuously stirring;
s3: adding 2.0wt% of styrene-butadiene rubber emulsion into the suspension prepared by S2, stirring for 30min, adding 1.0wt% of octanol, and stirring for 10min to prepare negative electrode slurry;
s4: and (5) uniformly coating the negative electrode slurry prepared in the step (S4) on the surface of a copper current collector, and drying to obtain the negative electrode plate.
Example 3:
s1: adding a proper amount of deionized water into a stirring kettle, then adding 1.2wt% of sodium carboxymethylcellulose and polyethylene oxide, and stirring for fully dissolving;
s2: adding 95.8wt% of artificial graphite active material, 1wt% of conductive carbon fiber and conductive carbon black into another stirring kettle, uniformly mixing, pouring the sodium carboxymethylcellulose solution in S1 into the stirring kettle, and continuously stirring;
s3: adding 2.0wt% of styrene-butadiene rubber emulsion into the suspension prepared by S2, stirring for 30min, adding 2.0wt% of octanol, and stirring for 10min to prepare negative electrode slurry;
s4: and (5) uniformly coating the negative electrode slurry prepared in the step (S4) on the surface of a copper current collector, and drying to obtain the negative electrode plate.
Example 4:
s1: adding a proper amount of deionized water into a stirring kettle, then adding 1.2wt% of sodium carboxymethylcellulose and polyethylene oxide, and stirring for fully dissolving;
s2: adding 95.8wt% of artificial graphite active material, 1wt% of conductive carbon fiber and conductive carbon black into another stirring kettle, uniformly mixing, pouring the sodium carboxymethylcellulose solution in S1 into the stirring kettle, and continuously stirring;
s3: adding 2.0wt% of polyacrylic acid emulsion into the suspension prepared by S2, stirring for 30min, adding 1wt% of octanol, and stirring for 10min to prepare negative electrode slurry;
s4: and (5) uniformly coating the negative electrode slurry prepared in the step (S4) on the surface of a copper current collector, and drying to obtain the negative electrode plate.
Comparative example 1:
s1: adding a proper amount of deionized water into a stirring kettle, then adding 1.2wt% of sodium carboxymethylcellulose, and stirring for fully dissolving;
s2: adding 95.8wt% of artificial graphite active material, 1wt% of conductive carbon fiber and conductive carbon black into another stirring kettle, uniformly mixing, pouring the sodium carboxymethylcellulose solution in S1 into the stirring kettle, and continuously stirring;
s3: adding 2.0wt% of styrene-butadiene rubber emulsion into the suspension prepared in S2, and stirring for 30min to prepare cathode slurry;
s4: and (5) uniformly coating the negative electrode slurry prepared in the step (S4) on the surface of a copper current collector, and drying to obtain the negative electrode plate.
According to the lithium ion battery negative electrode slurry, the negative electrode plate and the preparation method thereof, the yield of the slurry coated into the high-surface-density negative electrode plate, the bonding force of the high-surface-density negative electrode plate and the electrolyte wettability are improved effectively by optimizing the negative electrode slurry, the lithium ion migration rate is improved, the internal resistance of the battery is reduced, and the battery performance is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (6)
1. The lithium ion battery negative electrode slurry, the negative electrode plate and the preparation method thereof are characterized in that the negative electrode slurry comprises a negative electrode active material, a conductive agent, a thickening agent, an adhesive and a negative electrode additive, the negative electrode plate is prepared from the negative electrode slurry, and the preparation method comprises the following steps:
s1: adding a proper amount of deionized water into a stirring kettle, then adding an equivalent amount of thickening agent, and stirring for fully dissolving;
s2: adding equivalent negative electrode active material and equivalent conductive agent into another stirring kettle, mixing uniformly, pouring the solution in S1 into the stirring kettle, and continuing stirring;
s3: adding an equivalent amount of the adhesive into the suspension prepared in S2, stirring for 30min, adding a proper amount of a negative electrode additive, and stirring for 5-10 min to prepare negative electrode slurry;
s4: and (5) uniformly coating the negative electrode slurry prepared in the step (S4) on the surface of a copper current collector, and drying to obtain the negative electrode plate.
2. The lithium ion battery negative electrode slurry and the negative electrode plate as claimed in claim 1, wherein the weight ratio of the negative electrode active material, the conductive agent, the thickening agent and the adhesive dry powder is 93-97%: 0.5-2.5%: 1.0-2.0%: 1.0-2.5%, and the weight of the negative electrode additive is 0.5-2% of the dry powder.
3. The lithium ion battery negative electrode slurry, the negative electrode plate and the preparation method of the negative electrode plate according to claim 1, wherein the negative electrode active material is one or more of artificial graphite, natural graphite, silicon carbon, silicon monoxide and silicon nanowires.
4. The lithium ion battery negative electrode slurry, the negative electrode plate and the preparation method of the lithium ion battery negative electrode slurry and the negative electrode plate according to claim 1, wherein the conductive agent is one or more of carbon nanotubes, conductive carbon fibers, conductive carbon black and conductive graphite.
5. The lithium ion battery negative electrode slurry, the negative electrode plate and the preparation method of the negative electrode plate according to claim 1, wherein the thickener is a mixture of sodium carboxymethylcellulose and polyethylene oxide, and the addition amount of the polyethylene oxide accounts for 10-50% of the weight of the thickener; the adhesive is one or more of styrene-butadiene rubber emulsion, polyacrylic acid emulsion and polyacrylonitrile.
6. The lithium ion battery negative electrode slurry, the negative electrode plate and the preparation method of the negative electrode plate according to claim 1, wherein the negative electrode additive is octanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454766.2A CN113725404A (en) | 2020-05-26 | 2020-05-26 | Lithium ion battery negative electrode slurry, negative electrode plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454766.2A CN113725404A (en) | 2020-05-26 | 2020-05-26 | Lithium ion battery negative electrode slurry, negative electrode plate and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113725404A true CN113725404A (en) | 2021-11-30 |
Family
ID=78671935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010454766.2A Pending CN113725404A (en) | 2020-05-26 | 2020-05-26 | Lithium ion battery negative electrode slurry, negative electrode plate and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113725404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024145794A1 (en) * | 2023-01-03 | 2024-07-11 | 宁德时代新能源科技股份有限公司 | Negative electrode, and preparation method therefor and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061601A (en) * | 2005-04-04 | 2007-10-24 | 松下电器产业株式会社 | Lithium secondary battery |
| CN102280612A (en) * | 2010-08-25 | 2011-12-14 | 深圳市比克电池有限公司 | Method for manufacturing lithium battery anode slurries and lithium ion battery manufactured from lithium battery anode slurries |
| CN105161702A (en) * | 2015-10-26 | 2015-12-16 | 新乡市超力新能源有限公司 | Zinc-nickel battery negative electrode active substance, zinc-nickel battery negative electrode plate and zinc-nickel battery |
| WO2017031885A1 (en) * | 2015-08-24 | 2017-03-02 | 深圳市斯诺实业发展股份有限公司 | Preparation method for lithium battery negative-electrode slurry |
| CN109560251A (en) * | 2018-11-09 | 2019-04-02 | 上海力信能源科技有限责任公司 | A kind of lithium ion battery negative electrode and preparation method thereof, lithium ion battery |
-
2020
- 2020-05-26 CN CN202010454766.2A patent/CN113725404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061601A (en) * | 2005-04-04 | 2007-10-24 | 松下电器产业株式会社 | Lithium secondary battery |
| CN102280612A (en) * | 2010-08-25 | 2011-12-14 | 深圳市比克电池有限公司 | Method for manufacturing lithium battery anode slurries and lithium ion battery manufactured from lithium battery anode slurries |
| WO2017031885A1 (en) * | 2015-08-24 | 2017-03-02 | 深圳市斯诺实业发展股份有限公司 | Preparation method for lithium battery negative-electrode slurry |
| CN105161702A (en) * | 2015-10-26 | 2015-12-16 | 新乡市超力新能源有限公司 | Zinc-nickel battery negative electrode active substance, zinc-nickel battery negative electrode plate and zinc-nickel battery |
| CN109560251A (en) * | 2018-11-09 | 2019-04-02 | 上海力信能源科技有限责任公司 | A kind of lithium ion battery negative electrode and preparation method thereof, lithium ion battery |
Non-Patent Citations (1)
| Title |
|---|
| BORIS BITSCH 等: "A novel slurry concept for the fabrication of lithium-ion battery electrodes with beneficial properties", 《JOURNAL OF POWER SOURCES》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024145794A1 (en) * | 2023-01-03 | 2024-07-11 | 宁德时代新能源科技股份有限公司 | Negative electrode, and preparation method therefor and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108832125B (en) | Lithium battery negative electrode aqueous binder, preparation method thereof and electrode plate preparation method | |
| CN109103399B (en) | Functional diaphragm for lithium-sulfur battery, preparation method of functional diaphragm and application of functional diaphragm in lithium-sulfur battery | |
| CN110739485A (en) | low-temperature lithium ion batteries | |
| CN112909234A (en) | Preparation method and application of lithium cathode or sodium cathode | |
| CN109935832B (en) | Silicon-based negative electrode binder of lithium ion battery and preparation method of negative plate using binder | |
| CN111662418B (en) | Lithiation functional polymer for lithium ion cell and its prepn and application | |
| CN110993884B (en) | Lithium ion battery negative electrode slurry, preparation method, negative electrode plate and battery | |
| CN109722190B (en) | Preparation method of lithium battery silicon-based negative electrode binder and binder thereof | |
| CN109546085B (en) | Carbon-silicon negative electrode plate using high-viscosity lithium binder and preparation method thereof | |
| CN109273694B (en) | Graphene/stannous oxide two-dimensional heterojunction composite material and preparation method thereof | |
| CN110190284B (en) | Water-based binder for lithium-sulfur battery positive electrode and preparation method and application thereof | |
| CN107359351B (en) | Humic acid-based water-based binder for lithium ion battery and method for preparing electrode plate by using same | |
| CN107732169B (en) | Silicon-based negative electrode material of lithium battery, preparation method of silicon-based negative electrode material, battery negative electrode and lithium battery | |
| CN106486694B (en) | A kind of high-energy density ternary NCA battery and preparation method thereof | |
| CN111653834B (en) | Aqueous electrolyte, aqueous metal ion battery, and method for producing same | |
| CN111668485B (en) | Binder for lithium ion battery and preparation method and application thereof | |
| CN114899400B (en) | Positive electrode slurry, positive electrode plate and lithium battery | |
| CN108682862A (en) | A kind of preparation method of lithium ion battery silicon substrate negative plate | |
| CN114552122A (en) | Diaphragm, preparation method thereof and secondary battery | |
| CN111063891B (en) | Preparation method of aqueous conductive adhesive | |
| CN113782729A (en) | Lithium ion battery negative electrode slurry, lithium ion battery preparation method and lithium ion battery | |
| CN115295802A (en) | Adhesive, preparation method thereof and application thereof in lithium ion battery | |
| CN116111091A (en) | Adhesive composition, sodium ion battery positive electrode slurry and sodium ion battery | |
| CN109065805B (en) | Preparation method of high-liquid-absorption-rate water-based polymer diaphragm | |
| CN113725404A (en) | Lithium ion battery negative electrode slurry, negative electrode plate and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211130 |
|
| RJ01 | Rejection of invention patent application after publication |