CN108574088A - A kind of anode sizing agent and preparation method thereof - Google Patents
A kind of anode sizing agent and preparation method thereof Download PDFInfo
- Publication number
- CN108574088A CN108574088A CN201710141105.2A CN201710141105A CN108574088A CN 108574088 A CN108574088 A CN 108574088A CN 201710141105 A CN201710141105 A CN 201710141105A CN 108574088 A CN108574088 A CN 108574088A
- Authority
- CN
- China
- Prior art keywords
- positive electrode
- sizing agent
- anode
- carboxymethyl cellulose
- anode sizing
- 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
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
- H01M4/364—Composites as mixtures
-
- 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
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
-
- 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
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
-
- 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)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of anode sizing agents and preparation method thereof.The slurry is made by the raw material including following substances：Positive electrode active materials, conductive carbon powder, oxalic acid, ammonium fluoride, butadiene rubber (SBR) and carboxymethyl cellulose (CMC).
Description
Technical field
The present invention relates to a kind of manufacturing technologies of lithium battery, and relate more specifically to the preparation method of cathode slurry.
Background technology
Lithium ion battery generally includes anode, cathode, partition board and electrolyte.There are one modern lithium ion battery usually tools
Carbon anode and transition metal oxide anode.Anode and negative material usually have layer structure, to accommodate lithium ion.It is charging
When with electric discharge, lithium ion transmits between a positive electrode and a negative electrode.
Lithium battery cost generally consists of two parts：Cost of material and manufacturing cost.Battery manufacture includes electrode coating, electricity
Pole is wound or electrode stacks, cell sealing and chemical conversion.Prepared by the slurry of electrode and coating is the most important step of battery preparation,
It is also the notable component part of cost.
Electrode of lithium cell coating method is generally divided into two classes：Oil system and water system.If adhesive is polyvinylidene fluoride
(PVDF), generally use N-Methyl pyrrolidone (NMP) as solvent.This process needs the recycling of NMP, dramatically increases capital branch
Go out and also due to the leakage of NMP and cause the pollution of environment.Water system coating then uses deionized water as solvent, carboxymethyl cellulose
Plain (CMC, Carboxymethyl cellulose) is used as thickener, butadiene-styrene rubber (SBR, Styrene Butadiene
Rubber) it is used as binder.
The coating of positive electrode water system is applied on LiMn2O4 and LiFePO4, such as United States Patent (USP)
US8956688 teaches LiFePO4 (LiFePO4) positive electrode water system coating processing method.The water base place of tertiary cathode material
Reason is had been reported that in the literature in " Investigations on high energy lithium-ion batteries with
Aqueous binder " (Qingliu Wu, et al, Electrochimica Acta, 114,2013,1-6), but circulating effect
It is very poor, decay quickly after 50 cycles.
Therefore there is an urgent need in the art to provide a kind of cheap effective positive electrode water system coating process method.
Invention content
The present invention is intended to provide a kind of preparation method of aqueous positive-pole slurry.
It is a further object to provide the processing methods of aqueous positive-pole slurry coating.
In the first aspect of the present invention, a kind of lithium battery anode slurry is provided, the slurry is by including following substances
Raw material be made：Positive electrode active materials, conductive carbon powder, oxalic acid, ammonium fluoride, butadiene rubber (SBR) and carboxymethyl cellulose
(CMC)。
In another preferred example, with positive electrode active materials, conductive carbon powder, oxalic acid, ammonium fluoride, butadiene rubber (SBR) and
The dosage of the solid masses meter of carboxymethyl cellulose (CMC), the positive electrode active materials is 80-99%, and the dosage of oxalic acid is
The dosage of 0.05-1%, ammonium fluoride are 0.1-2%, and the dosage of butadiene rubber is 0.5-5%, and the dosage of carboxymethyl cellulose is
0.5-5%.
In another preferred example, the positive electrode is the high manganese anode material of rich lithium；The positive electrode is Li1+
NiaCobMncWeO2, wherein
δ ranges are 0 to 0.2；
A ranges are 0.05 to 0.3；
B ranges are 0.05 to 0.3；
C ranges are 0.33 to 0.6；
E ranges are 0 to 0.10.
In the second aspect of the present invention, a kind of preparation side of the anode sizing agent provided present invention as described above is provided
Method, the method includes the steps：It is added after mixture containing positive electrode active materials is mixed with carboxymethyl cellulose-aqueous solution
Butadiene rubber forms the anode sizing agent provided present invention as described above；Contain in the mixture containing positive electrode active materials
There is conductive carbon powder；Carboxymethyl cellulose-the aqueous solution is to be mixed to form ammonium fluoride, oxalic acid and carboxymethyl cellulose.
In another preferred example, add after the mixture containing positive electrode active materials is mixed with carboxymethyl cellulose-aqueous solution
Butadiene rubber is added after entering N-Methyl pyrrolidone.
In another preferred example, the mixture is powdered.
In the third aspect of the present invention, a kind of processing method of lithium battery anode is provided, the method includes the steps：It will
The anode sizing agent provided present invention as described above is coated on aluminium foil collector.
In another preferred example, the method includes the steps：
(i) anode sizing agent is coated on aluminium foil collector and forms wet film；
(ii) electrode of coating is made to remove moisture content.
Accordingly, the present invention provides a kind of cheap effective positive electrode water system coating process methods.
Description of the drawings
Fig. 1 respectively illustrates the electrode of the electrode and the processing of NMP in the prior art of aqueous process processing provided by the invention
Charge and discharge cycles data；Wherein battery #273 uses aqueous positive-pole provided by the invention, battery #260 to use reality
The oiliness anode of the offer of example 4 is provided.
Specific implementation mode
Inventor after extensive and in-depth study, it is found that the formation by oxalic acid and ammonium fluoride for aqueous positive-pole can obtain
It is excellent to obtain charge and discharge effect, and low-cost electrode of lithium cell.On this basis, the present invention is completed.
Anode sizing agent
The raw material for obtaining the lithium battery anode slurry of the present invention includes positive electrode active materials, conductive carbon powder, oxalic acid, fluorination
Ammonium, butadiene rubber (SBR) and carboxymethyl cellulose (CMC)；With positive electrode active materials, conductive carbon powder, oxalic acid, ammonium fluoride, fourth
The dosage of the solid masses meter of diene rubber (SBR) and carboxymethyl cellulose (CMC), the positive electrode active materials is 80-99%
The dosage of (preferably 87-98%, more preferably 90-95%), oxalic acid are 0.05-1% (preferably 0.10-0.5%, more preferable 0.05-
0.2%), the dosage of ammonium fluoride is 0.1-2% (preferably 0.20-2%, more preferable 0.30-1%), and the dosage of butadiene rubber is
The dosage of 0.5-5% (preferably 1-3%), carboxymethyl cellulose are 0.5-5% (preferably 1-3%).
Conductive carbon powder, butadiene rubber (SBR) and the carboxymethyl cellulose used in anode sizing agent provided by the invention
(CMC) can be commonly used in the art.
In the present invention, " positive electrode " and " positive electrode active materials " may be used interchangeably, and all refer to the high manganese anode material of rich lithium
Material, refers to Li in a preferred embodiment1+NiaCobMncWeO2, wherein
δ ranges are 0 to 0.2；
A ranges are 0.05 to 0.3；
B ranges are 0.05 to 0.3；
C ranges are 0.33 to 0.6；
E ranges are 0 to 0.10.
Preparation method
Anode sizing agent provided by the invention can be prepared by following step：
The first step mixes positive electrode active materials with conductive carbon powder, forms mixture of powders；
Second step after mixing ammonium fluoride and oxalic acid with deionized water, is added carboxymethyl cellulose, it is water-soluble to form CMC-
Liquid；
Third walks, and mixture of powders is mixed with CMC- aqueous solutions, obtains slurries；
Butadiene rubber and slurries are mixed to get anode sizing agent by the 4th step.
There is no sequence requirement between the above-mentioned first step and second step, can be carried out at the same time respectively.
Conductive carbon powder in the above-mentioned first step can be it is commonly used in the art, such as, but not limited to, conductive carbon powder
Super P, carbon nanotube (carbon nanotube), graphene (graphene), etc..
In the preferred embodiment of the present invention, what is obtained in the first step is uniform mixture of powders.
In one embodiment of the invention, above-mentioned second step be by ammonium fluoride and dissolving oxalic acid in deionized water,
Carboxymethyl cellulose is added after stirring, is then stirred at least 2 hours.
In one embodiment of the invention, above-mentioned third step is that the mixture of powders for obtaining the first step is added to the
In the CMC- aqueous solutions that two steps obtain, then it is stirred at least 8 hours, is preferably stirred overnight.
In another embodiment of the invention, a small amount of N- methylpyrroles are also contained in the slurries that above-mentioned third walks
Alkanone, i.e. above-mentioned third step are that the mixture of powders for obtaining the first step is added in the CMC- aqueous solutions that second step obtains, and
A small amount of N-Methyl pyrrolidone is added and obtains slurries.
Above-mentioned 4th step is that butadiene rubber suspension is added in the slurries that third step obtains, anode is obtained after stirring
Slurry.
It is that anode sizing agent provided by the invention is prepared by following step the present invention also provides a kind of embodiment：
The first step mixes positive electrode active materials with a part of conductive carbon powder, forms mixture of powders 1；
Second step after mixing ammonium fluoride and oxalic acid with deionized water, is added carboxymethyl cellulose, it is water-soluble to form CMC-
Liquid；
Third walks, and CMC- aqueous solutions are mixed with another part conductive carbon powder, obtain mixture of powders 1 after slurries 1 and
The slurries 1 are mixed to get slurries 2
Butadiene rubber and slurries 2 are mixed to get anode sizing agent by the 4th step.
There is no sequence requirement between the above-mentioned first step and second step, can be carried out at the same time respectively.
Conductive carbon powder in the above-mentioned first step and third step can be commonly used in the art, such as, but not limited to, lead
Electrical carbon powder Super P, carbon nanotube (carbon nanotube), graphene (graphene), etc.；It is used in this general two step
Be identical conductive carbon powder.
In the preferred embodiment of the present invention, what is obtained in the first step is uniform mixture of powders 1.
In one embodiment of the invention, above-mentioned second step be by ammonium fluoride and dissolving oxalic acid in deionized water,
Carboxymethyl cellulose is added after stirring, is then stirred at least 2 hours.
In one embodiment of the invention, above-mentioned third step is by not used another part conductive carbon in the first step
Powder is added in the CMC- aqueous solutions of second step acquisition, is stirred at least 2 hours, is preferably stirred overnight, obtains slurry 1, then again
The mixture of powders 1 obtained in the first step is added in slurry 1, stirs at least 8 hours, is preferably stirred overnight to obtain slurry 2.
In another embodiment of the invention, a small amount of N- methyl pyrrole is also contained in the slurries 2 that above-mentioned third walks
Pyrrolidone, i.e., above-mentioned third step is another part conductive carbon powder to be added in slurry 1, and a small amount of N-Methyl pyrrolidone is added
Obtain slurries.
Above-mentioned 4th step is that butadiene rubber suspension is added in the slurries 2 that third step obtains, anode is obtained after stirring
Slurry.
Anode coating
The present invention carries out positive coating by following step：
Anode sizing agent provided by the invention is applied to aluminium foil collector and forms wet film by the first step；
Electrode is dried to remove moisture content second step.
In the above-mentioned first step, it can be coated using coating machine, preferably knife type coater.
What is formed in the above-mentioned first step is thin wet film, and thickness is at 100-400 microns.
In above-mentioned second step, the drying can carry out in 100 DEG C of vacuum or air.
The feature that the features described above or embodiment that the present invention mentions are mentioned can be in any combination.Disclosed in this case specification
All features can be used in combination with any composition form, each feature disclosed in specification, any can provide it is identical,
The alternative characteristics of impartial or similar purpose replace.Therefore it is only impartial or similar spy except having special instruction, revealed feature
The general example of sign.
Main advantages of the present invention are：The positive electrode of water base processing provided by the invention can reach in full battery
200mAh/g, while at 500 after cycle, decaying only 5%.
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In the following examples, the experimental methods for specific conditions are not specified, usually according to conventional strip
Part or according to the normal condition proposed by manufacturer.Unless otherwise stated, otherwise all percentage, ratio, ratio or number is pressed
Weight meter.
The unit in percent weight in volume in the present invention is well-known to those skilled in the art, for example, refer to
The weight of solute in 100 milliliters of solution.
Unless otherwise defined, all professional and scientific terms used in text and meaning known to one skilled in the art
Justice is identical.In addition, any method and material similar or impartial to described content can be applied to the method for the present invention.Wen Zhong
The preferred implement methods and materials are for illustrative purposes only.
Charging and discharging curve involved in following embodiments is measured by following methods：
It is prepared into 18650 batteries by the preparation method of 18650 cylindrical batteries of standard.At 25 DEG C, the electricity of 2.0-4.5V
It presses in range, first charge-discharge test is carried out with new prestige cell tester to 18650 batteries under conditions of 1/10C, is then existed
It in the voltage range of 2.0-4.4V, is charged with 0.333C, 1C electric discharges carry out charge and discharge cycles.Charging and discharging curve reflects positive electrode
Variation of the voltage in charge and discharge process.
Positive electrode (the Li that following embodiments use1+NiaCobMncWeO2) be documented in CN201410776175.1,
Disclosed in associated materials can use.
Embodiment 1-3
Aqueous positive-pole processing
80 grams of positive electrode (Li1+NiaCobMncWeO2) and 2.4 conductive carbon powders (superP, Imerys Graphite＆
Carbon mixing) is to form homogeneous powder mixture；With 0.32 gram of ammonium fluoride and 0.12 gram of dissolving oxalic acid in 66 grams of deionizations
In water, stirs 20 minutes, 1.45 grams of carboxymethyl celluloses (CMC) (Carboxymethyl cellulose) are then added
(MAC350HC, NIPPON PAPER INDUSTRIES CO., LTD.) is stirred overnight, and forms the water of CMC- aqueous solutions.Then will
Positive electrode mixture of powders is added to CMC- aqueous solutions, and it is mixed that 1 milliliter of NMP (N-Methyl pyrrolidone) (MTI companies) is added
8 hours are closed to form slurries, 4.23 grams of butadiene-styrene rubber suspension SBR (Styrene Butadiene Rubber) are added
(TRD202A, 40% suspension, JSR companies), and stir 1 hour.Slurry is applied to aluminium foil collector with knife type coater,
To form a thin wet film.The electrode of coating dries 6 hours to remove moisture content under 100 DEG C of vacuum.
Other conditions and step are constant, and the dosage of oxalic acid and ammonium fluoride is only changed to 0 and 0.14% respectively, and
0.05% and 1%, to obtain other two aqueous positive-pole.
Embodiment 4
Based on NMP anode coating process
25 grams of positive electrode (Li1+NiaCobMncWeO2) and 1.20 grams of conductive carbon powders (superP, Imerys
Graphite＆carbon mixing) is to form homogeneous powder mixture.1.085 grams of polyvinylidene fluoride PVDF (MTI companies) with
25 milliliters of NMP (N-Methyl pyrrolidone) (MTI companies) mixing, and be stirred overnight, to form PVDF-NMP solution.Then by powder
Last mixture is added in PVDF-NMP solution and mixes 8 hours to form slurry.Slurry is applied to aluminium with knife type coater
Foil collector, to form a thin wet film.The electrode of coating dries 6 hours to remove NMP under 120 DEG C of vacuum.
Embodiment 5
It is prepared by negative material
By 80 grams of negative materials (B818, Bei Terui company) and 1.26 grams of conductive carbon powders (superP, Imerys
Graphite＆carbon) mixing is to form homogeneous powder mixture；By 1.0 grams of carboxyl methyl cellulose (Carboxymethyl
Cellulose) (MAC350HC, NIPPON PAPER INDUSTRIES CO., LTD.) is dissolved in 66 grams of deionized waters, and
It is stirred overnight, forms CMC- aqueous solutions.Then cathode mixture of powders is added to CMC- aqueous solutions and mixes 8 hours to be formed
Slurries, 3.6 grams of butadiene-styrene rubber suspension SBR (Styrene Butadiene Rubber) of addition (TRD202A, 40% suspension,
JSR companies), and stir 1 hour.The slurry is coated to copper foil collector with knife type coater, to form a thin wet film.
The electrode of coating dries 6 hours to remove moisture content under 100 DEG C of vacuum.
Embodiment 6-8
Encapsulate battery
NMP anodes made from aqueous positive-pole made from embodiment 1-3 and embodiment 4 are born with made from embodiment 3 respectively
Pole and diaphragm (MTI companies) are wound into a roll, and are assembled in 18650 battery cases.By the battery assembled in vacuum and 80
It is 24 hours dry at DEG C.It is then transferred in the glove box full of argon gas.The LiPF 6 of 1M is dissolved in 1 ethylene carbonate, carbonic acid
In the solution of diethylester and dimethyl carbonate：1：1 volume ratio is added in 18650 batteries under vacuum.Then encapsulation electricity
Pond.
Embodiment 9
Loop test
Test result is shown in attached drawing 1 and table 1.
Table 1 uses the coating sizing-agent of the additive of different content
Fig. 1's the result shows that, the electrode with the processing of aqueous process is recycled to discharge 516 in 0.33C chargings/1C and follow
Ring, only 5% capacity attenuation.
Table 1 the result shows that, the dosage of ammonium fluoride and oxalic acid can influence the performance of positive electrode specific capacity, can also influence to follow
The ring service life.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limited to the substantial technological content model of the present invention
It encloses, substantial technological content of the invention is broadly to be defined in the right of application, any technology that other people complete
Entity or method also or a kind of equivalent change, will if identical with defined in the right of application
It is considered as being covered by among the right.
Claims (9)
1. a kind of lithium battery anode slurry, which is characterized in that the slurry is made by the raw material including following substances：Anode is living
Property material, conductive carbon powder, oxalic acid, ammonium fluoride, butadiene rubber (SBR) and carboxymethyl cellulose (CMC).
2. anode sizing agent as described in claim 1, which is characterized in that with positive electrode active materials, conductive carbon powder, oxalic acid, fluorination
The dosage of the solid masses meter of ammonium, butadiene rubber (SBR) and carboxymethyl cellulose (CMC), the positive electrode active materials is 80-
99%, the dosage of oxalic acid is 0.05-1%, and the dosage of ammonium fluoride is 0.1-2%, and the dosage of butadiene rubber is 0.5-5%, carboxylic
The dosage of methylcellulose is 0.5-5%.
3. anode sizing agent as claimed in claim 1 or 2, which is characterized in that the positive electrode is the high manganese anode material of rich lithium.
4. anode sizing agent as claimed in claim 3, which is characterized in that the positive electrode is Li1+NiaCobMncWeO2, wherein
δ ranges are 0 to 0.2；
A ranges are 0.05 to 0.3；
B ranges are 0.05 to 0.3；
C ranges are 0.33 to 0.6；
E ranges are 0 to 0.10.
5. a kind of preparation method of anode sizing agent according to any one of claims 1-4, which is characterized in that the method includes
Step：Butadiene rubber is added after mixture containing positive electrode active materials is mixed with carboxymethyl cellulose-aqueous solution to be formed
Anode sizing agent according to any one of claims 1-4；Contain conductive carbon powder in the mixture containing positive electrode active materials；
Carboxymethyl cellulose-the aqueous solution is to be mixed to form ammonium fluoride, oxalic acid and carboxymethyl cellulose.
6. preparation method as claimed in claim 5, which is characterized in that the mixture containing positive electrode active materials is fine with carboxymethyl
Butadiene rubber is added after N-Methyl pyrrolidone is added after dimension element-aqueous solution mixing.
7. preparation method as claimed in claim 5, which is characterized in that the mixture is powdered.
8. a kind of processing method of lithium battery anode, which is characterized in that the method includes the steps：It will appoint such as claim 1-4
Anode sizing agent described in one is coated on aluminium foil collector.
9. processing method as claimed in claim 8, which is characterized in that the method includes the steps：
(i) anode sizing agent is coated on aluminium foil collector and forms wet film；
(ii) electrode of coating is made to remove moisture content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141105.2A CN108574088A (en) | 2017-03-10 | 2017-03-10 | A kind of anode sizing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141105.2A CN108574088A (en) | 2017-03-10 | 2017-03-10 | A kind of anode sizing agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108574088A true CN108574088A (en) | 2018-09-25 |
Family
ID=63577904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710141105.2A Pending CN108574088A (en) | 2017-03-10 | 2017-03-10 | A kind of anode sizing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108574088A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981730A (en) * | 2008-02-04 | 2011-02-23 | 蒂艾克思股份有限公司 | Method for improving environmental stability of cathode materials for lithium batteries |
| CN102082259A (en) * | 2010-12-30 | 2011-06-01 | 常州华科新能源科技有限公司 | Lithium secondary battery electrodes and production method thereof |
| CN102386378A (en) * | 2011-09-13 | 2012-03-21 | 东莞新能源科技有限公司 | Preparation method for electrode slurry of lithium ion batteries |
| CN103915607A (en) * | 2014-04-29 | 2014-07-09 | 唐山金能电子科技有限公司 | Preparation method and application method of lithium ion battery |
| CN104022278A (en) * | 2014-06-19 | 2014-09-03 | 广西卓能新能源科技有限公司 | Cylindrical lithium-ion battery cell and preparation method thereof |
| CN104157877A (en) * | 2014-08-20 | 2014-11-19 | 广西卓能新能源科技有限公司 | Lithium ion battery electrical core and preparation method thereof |
| CN106450199A (en) * | 2016-10-24 | 2017-02-22 | 东莞市联洲知识产权运营管理有限公司 | Preparation method of safe and environment-friendly high-rate lithium-ion battery |
-
2017
- 2017-03-10 CN CN201710141105.2A patent/CN108574088A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981730A (en) * | 2008-02-04 | 2011-02-23 | 蒂艾克思股份有限公司 | Method for improving environmental stability of cathode materials for lithium batteries |
| CN102082259A (en) * | 2010-12-30 | 2011-06-01 | 常州华科新能源科技有限公司 | Lithium secondary battery electrodes and production method thereof |
| CN102386378A (en) * | 2011-09-13 | 2012-03-21 | 东莞新能源科技有限公司 | Preparation method for electrode slurry of lithium ion batteries |
| CN103915607A (en) * | 2014-04-29 | 2014-07-09 | 唐山金能电子科技有限公司 | Preparation method and application method of lithium ion battery |
| CN104022278A (en) * | 2014-06-19 | 2014-09-03 | 广西卓能新能源科技有限公司 | Cylindrical lithium-ion battery cell and preparation method thereof |
| CN104157877A (en) * | 2014-08-20 | 2014-11-19 | 广西卓能新能源科技有限公司 | Lithium ion battery electrical core and preparation method thereof |
| CN106450199A (en) * | 2016-10-24 | 2017-02-22 | 东莞市联洲知识产权运营管理有限公司 | Preparation method of safe and environment-friendly high-rate lithium-ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2020064866A (en) | Aqueous slurry for battery electrode | |
| Shi et al. | Robust solid/electrolyte interphase on graphite anode to suppress lithium inventory loss in lithium-ion batteries | |
| Böckenfeld et al. | Composite LiFePO4/AC high rate performance electrodes for Li-ion capacitors | |
| CN112234163A (en) | Negative plate and lithium ion battery | |
| Wu et al. | Investigations on high energy lithium-ion batteries with aqueous binder | |
| TWI521777B (en) | Water-based cathode slurry for a lithium ion battery | |
| Wang et al. | Enhancing electrochemical properties of graphite anode by using poly (methylmethacrylate)–poly (vinylidene fluoride) composite binder | |
| WO2009087731A1 (en) | Nonaqueous electrolyte secondary battery and method for manufacturing the same | |
| CN110611076A (en) | Lithium ion battery positive pole piece and preparation method thereof | |
| Jantke et al. | Silicon-dominant anodes based on microscale silicon particles under partial lithiation with high capacity and cycle stability | |
| CN107195861A (en) | A kind of negative electrode of lithium ion battery electrocondution slurry, preparation method, negative pole and battery | |
| JP2010080297A (en) | Negative electrode for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery, and method for manufacturing negative electrode for nonaqueous electrolyte secondary battery | |
| JP2009043641A (en) | Nonaqueous electrolyte battery and negative electrode used for the same | |
| KR20150027026A (en) | Electrode for lithium ion secondary cell, method for preparing paste for said electrode and method for manufacturing said electrode | |
| JP2010165493A (en) | Negative electrode for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery, and method of manufacturing negative electrode for non-aqueous electrolyte secondary battery | |
| JP5230278B2 (en) | Negative electrode for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery including the same, and method for producing negative electrode for nonaqueous electrolyte secondary battery | |
| CN114122368A (en) | Lithium supplement material, manufacturing method thereof, negative pole piece and battery | |
| BR102018074749A2 (en) | METHOD FOR PRODUCING A SULFET SOLID STATE BATTERY | |
| CN114566650A (en) | Sodium supplement additive and method for positive electrode of sodium ion battery, positive electrode and flexible electrode | |
| Zarei-Jelyani et al. | Unraveling the role of binder concentration on the electrochemical behavior of mesocarbon microbead anode in lithium–ion batteries: understanding the formation of the solid electrolyte interphase | |
| US20180226635A1 (en) | Lithium ion battery positive electrode composition and preparation method thereof | |
| CN114497549B (en) | Method for electrochemically preparing positive electrode lithium supplement material, lithium supplement material and lithium supplement slurry | |
| US20210175494A1 (en) | Sulfur-based positive electrode active material for use in solid-state battery, preparation for material, and applications thereof | |
| CN104752683A (en) | Composition and slurry for anode material and preparation method, anode material, anode and production method as well as lithium ion battery | |
| CN114335419A (en) | Lithium battery negative pole piece and lithium battery |
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: 20180925 |
|
| RJ01 | Rejection of invention patent application after publication |