CN105206790A - Preparation method for lithium battery anode slurry doped with tin powder - Google Patents
Preparation method for lithium battery anode slurry doped with tin powder Download PDFInfo
- Publication number
- CN105206790A CN105206790A CN201510524171.9A CN201510524171A CN105206790A CN 105206790 A CN105206790 A CN 105206790A CN 201510524171 A CN201510524171 A CN 201510524171A CN 105206790 A CN105206790 A CN 105206790A
- Authority
- CN
- China
- Prior art keywords
- time
- stirring
- slurry
- preparation
- minutes
- 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.)
- Withdrawn
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
- H01M4/04—Processes of manufacture in general
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a preparation method for lithium battery anode slurry doped with tin powder. By adding nanometer tin powder in the conventional anode slurry preparation process, the capacity playing performance of the material is improved, and the requirements of a lithium ion battery for the high-energy density can be met; in addition, through the steps of thickening agent solution preparing, powder body dispersing, high-viscosity stirring, low-viscosity stirring, viscosity testing, vacuum defoaming and the like, all the components, especially the nanometer tin powder, are fully dispersed in an anode system, agglomeration of the nanometer tin powder is avoided, and the cycling stability is guaranteed. The preparation method has the advantages of being short in preparation time, little in equipment wear, low in production energy consumption, good in dispersion effect and the like. The lithium battery prepared by adopting the anode slurry is low in internal resistance, high in volume energy density and good in cycling performance.
Description
Technical field
This patent relates to field of lithium ion battery, is specially a kind of preparation method of nanometer glass putty elements doped lithium battery cathode slurry.
Background technology
At present continuous deterioration with climatic environment in short supply along with global petroleum resources, human social development is faced with stern challenge.The new-energy automobile of development clean energy-saving is subject to the great attention of countries in the world.The development of new-energy automobile, crucial in its electrical source of power.Lithium ion battery has the advantages such as energy density is large, self discharge is little, memory-less effect, operating voltage range are wide, long service life, non-environmental-pollution, is the main electrical source of power of current new-energy automobile.
The develop rapidly of lithium ion battery mainly has benefited from the contribution of electrode material, the particularly progress of negative material.What current commercial Li-ion battery negative material adopted is graphite-like material with carbon element, and having lower lithium embedding/deintercalation current potential, suitable reversible capacity and aboundresources, the advantage such as cheap, is more satisfactory lithium ion battery negative material.Graphite-like material with carbon element, having lower lithium embedding/deintercalation current potential, suitable reversible capacity and aboundresources, the advantage such as cheap, is more satisfactory lithium ion battery negative material.But its theoretical specific capacity only has 372mAh/g, thus limit the further raising of lithium ion battery specific energy, the demand of growing high-energy Portable power source can not be met.
Metallic tin has the advantage such as high lithium storage content (994mAh/g) and low lithium ion deintercalation platform voltage, is the extremely potential non-carbon negative material of one.People have carried out this kind of material and have studied widely in recent years, and make some progress.But in reversible lithium storage process, metallic tin volumetric expansion is remarkable, and cause cycle performance to be deteriorated, capacity is decayed rapidly, is therefore difficult to the requirement meeting large-scale production.For this reason, by introducing the nonmetalloids such as carbon, carrying out stable metal tin in the mode of alloying or compound, slowing down the volumetric expansion of tin.
Lithium ion battery generally comprises positive plate, negative plate, is interval in barrier film between positive plate and negative plate.Anode pole piece comprises plus plate current-collecting body and is coated on the positive pole diaphragm on plus plate current-collecting body, and negative plate comprises negative current collector and is coated on the cathode membrane on negative current collector.Time prepared by electrode plates, first by active material (as cobalt acid lithium, graphite etc.), conductive agent is (as acetylene black, carbon nano-tube, carbon fiber etc.), bonding agent (as Kynoar, PVP, sodium carboxymethylcellulose, SBR emulsion etc.) and solvent (as 1-METHYLPYRROLIDONE, water etc.) make electrode slurry together, again it is coated in collection liquid surface on request, then carry out drying, obtain battery pole piece.
Wherein the performance of performance on lithium ion battery of electrode slurry has important impact.In electrode slurry, each component disperses must be more even, the processing characteristics that pole piece has just had, and electrode distribution of impedance is everywhere even, when discharge and recharge, the effect of active material can play larger, its average gram volume plays and will promote to some extent, thus promotes the performance of full battery.
In practical application, conductive agent thickener soln is carried out high-revolving double planetary dispersion by traditional cathode size preparation method, then add negative electrode active material, after carrying out the stirring of certain hour, then stirring obtains final cathode size through the row short time to add binding agent.First this kind of method need long time treatment to the dispersion of conductive agent, length consuming time and dispersity is unsatisfactory, especially for adopting carbon nano-tube (CNT), Graphene etc. be prepared by the slurry of conductive agent; Secondly traditional handicraft needs in slurry preparation process, keeps vacuumizing state always, cause slurry system internal temperature easily to raise to stirring system, adds recirculated water again simultaneously cool in outside, therefore all very high with wearing and tearing to the requirement of equipment.More than cause that slurry preparation efficiency is low, poor stability, effect are undesirable, all can impact the preparation of follow-up pole piece, the performance of lithium battery.
Summary of the invention
In order to overcome problems of the prior art, the object of this invention is to provide a kind of preparation method of glass putty elements doped lithium battery cathode slurry, to realize within a short period of time to each component of slurry, especially nanometer glass putty is dispersed, its slurry uniformity prepared is good, excellent in stability, its battery pole piece adhesion prepared and gram volume are improved simultaneously, and therefore improve energy density and the cyclical stability of battery.
In order to realize foregoing invention object, the present invention adopts technical scheme as described below:
1, thickener soln preparation: added by a certain percentage in deionized water solvent by thickener sodium carboxymethylcellulose (CMC), be uniformly dissolved with mixer, take out for subsequent use, the time is 60 ~ 100 minutes;
2, dispersion powder: negative electrode active material, nanometer glass putty, conductive agent are added agitator dispersed with stirring in proportion, the time is 30 ~ 40 minutes, and time 1/2 and at the end of, scrape the powder on paddle and staving;
3, high-viscosity stirring: add in 55% ~ 60% powder after above-mentioned stirring of thickener soln total amount, dispersed with stirring, the time is 60 ~ 70 minutes, and the time 1/3,2/3 and at the end of, scrape the slurry on paddle and staving, slurry temperature controls between 25 ~ 35 DEG C;
4, low viscosity stirs: add in 35 ~ 30% slurries after above-mentioned high-viscosity stirring of thickener soln total amount, dispersed with stirring, the time is 60 ~ 70 minutes, and the time 1/3,2/3 and at the end of, scrape the slurry on paddle and staving, slurry temperature controls between 25 ~ 35 DEG C;
5, viscosity test: the slurry viscosity that above-mentioned steps low viscosity stirs is carried out viscosity test, as at normal range (NR) 2000 ~ 5000MpaS, directly enters next step; As exceeded above-mentioned scope, then add 5% ~ 10% of thickener soln total amount, then dispersed with stirring, time is 30 ~ 40 minutes, and time 1/2 and at the end of, scrape the slurry on paddle and staving, detect a slurry viscosity again, reaching range of viscosities requirement can enter next step;
6, binding agent adds: add binding agent SBR, dispersed with stirring, the time is 10 ~ 30 minutes;
7, vacuum froth breaking: under stirring at low speed state, vacuumize staving, vacuum degree is-0.09 ~-0.1MPa, and the time is 15 ~ 30 minutes, namely obtains the cathode size prepared by the inventive method.
In above-mentioned steps 2, negative electrode active material is one or more mixtures in Delanium, native graphite, lithium titanate, hard carbon, carbonaceous mesophase spherules.
In above-mentioned steps 2, the particle diameter of nanometer glass putty is not more than 70nm.
In above-mentioned steps 2, conductive agent is one or more mixtures in conductive black, electrically conductive graphite, carbon nano-tube, carbon fiber, Graphene.
In above-mentioned steps 1, step 2 and step 6, the mass ratio of negative electrode active material, nanometer glass putty, conductive agent, thickener, each component of binding agent is followed successively by (90-97): (1-10): (1-4): (1-5): (1-3), and solvent is 80% ~ 120% of above-mentioned each component total amount.
In above steps, mixing plant is double-planet de-airing mixer, and slurry temperature is that the method that utilization passes into the thermostatical circulating water of relevant temperature to planet stirring bucket controls.
Secondly, the present invention also has following characteristics:
1, gram specific capacity is high: the present invention is because of in traditional cathode size, add nanometer glass putty, the capacity that improve material plays performance, the requirement of lithium ion battery to high-energy-density can be met, and nanometer glass putty has fully disperseed in negative pole system, avoid the reunion of nanometer glass putty, ensure cyclical stability;
2, preparation time is short: cathode size preparation time whole process of the present invention is about 265 ~ 380 minutes, and in subsequent preparation process, by the accumulation of practical experience several times, viscosity test step can be omitted, directly enter last vacuum defoaming process, 30 ~ 40 minutes can be saved thus, first thickener soln is prepared if any multiple devices, 60 ~ 100 minutes can be saved again, compare the conventional anode blank preparation technics time of about 7 ~ 9 hours, substantially increase production efficiency;
3, equipment attrition is little: the present invention only in the end just needs to vacuumize staving in vacuum defoaming process, compare traditional handicraft to need in slurry preparation process, keep vacuumizing state to stirring system always, heat difficulty in whipping process is caused to distribute, the drawback that slurry temperature easily raises, have substance and improve effect, the short time vacuumizes process and reduces facility load, reduces equipment attrition;
4, energy consumption is low: the cathode size solid content obtained by the present invention is about 45 ~ 55%, compare conventional fabrication process, there is high solids content, low viscous feature, the ratio also corresponding minimizing of the water therefore used, reduce in subsequent coating processes the energy consumption needed for moisture evaporation.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1
Take Delanium as negative electrode active material, SP is conductive agent, and nanometer Sn particle diameter is 50nm, by graphite: the mass ratio of Sn:CMC:SBR=94.0:3.0:1.5:2.0:2.5, and solvent deionized water is 100% of above-mentioned each component total amount.Preparation process is as follows:
1, add in deionized water solvent by thickener CMC, be uniformly dissolved with mixer, take out for subsequent use, the time is 60 minutes;
2, negative electrode active material, nanometer tin, conductive agent are added agitator dispersed with stirring, the time is 30 minutes, and when 15 minutes time and 30 minutes, scrapes the powder on paddle and staving;
3, add in 55% powder after above-mentioned stirring of thickener soln total amount, dispersed with stirring, the time is 60 minutes, and when 20 minutes time, 40 minutes and 60 minutes, scrapes the slurry on paddle and staving, and slurry temperature controls between 25 ~ 35 DEG C;
4, add in 35% slurry after above-mentioned high-viscosity stirring of thickener soln total amount, dispersed with stirring, the time is 60 minutes, and when 20 minutes time, 40 minutes and 60 minutes, scrapes the slurry on paddle and staving, and slurry temperature controls between 25 ~ 35 DEG C;
5, the slurry viscosity that above-mentioned steps low viscosity stirs is carried out viscosity test, test result is 5332MpaS, super normal range value, adds 5% of solvent total amount, then dispersed with stirring, time is 30 minutes, and when 15 minutes time and 30 minutes, scrape the slurry on paddle and staving, then detect a slurry viscosity, test result is 4215MpaS, reaches range of viscosities requirement;
6, add binding agent SBR, dispersed with stirring, the time is 10 minutes;
7, under stirring at low speed state, vacuumize staving, vacuum degree is-0.09 ~-0.1MPa, and the time is 15 minutes, namely obtains the cathode size prepared by the inventive method, about 265 minutes consuming time altogether.
According to lithium battery conventional production process, by cathode size through coating, dry, roll film, point cut into negative plate, then be assembled into iron phosphate lithium positive pole sheet, barrier film, electrolyte, battery case, obtained 18650 type cylinder ferric phosphate lithium cells after discharge and recharge activation.
Comparative example 1
Artificial plumbago negative pole slurry production process conveniently, prepares about 7 hours consuming time, according to lithium battery conventional production process, and obtained 18650 type cylinder ferric phosphate lithium cells.
Carry out electrical performance testing to 18650 type cylinder ferric phosphate lithium cells obtained by embodiment 1 and comparative example 1, the total capacity of battery, volume energy density, 500 circulation conservation rates and internal resistance of cell test comparison result are as shown in table 1.
Embodiment 2
Take native graphite as negative electrode active material, SP is conductive agent, and nanometer Sn particle diameter is 50nm, by graphite: the mass ratio of Sn:SP:CMC:SBR=94.5:7.0:2.0:1.6:1.9, and solvent deionized water is 80% of above-mentioned each component total amount.Preparation process is as follows:
1, add in deionized water solvent by thickener CMC, be uniformly dissolved with mixer, take out for subsequent use, the time is 120 minutes;
2, negative electrode active material, nanometer tin, conductive agent are added agitator dispersed with stirring, the time is 40 minutes, and when 20 minutes time and 40 minutes, scrapes the powder on paddle and staving;
3, add in 60% powder after above-mentioned stirring of thickener soln total amount, dispersed with stirring, the time is 70 minutes, and when 23 minutes time, 46 minutes and 70 minutes, scrapes the slurry on paddle and staving, and slurry temperature controls between 25 ~ 35 DEG C;
4, add in 35% slurry after above-mentioned high-viscosity stirring of thickener soln total amount, dispersed with stirring, the time is 70 minutes, and when 23 minutes time, 46 minutes and 70 minutes, scrapes the slurry on paddle and staving, and slurry temperature controls between 25 ~ 35 DEG C;
5, the slurry viscosity that above-mentioned steps low viscosity stirs is carried out viscosity test, test result is 4578MpaS, belongs to normal range value, reaches requirement;
6, add binding agent SBR, dispersed with stirring, the time is 30 minutes;
7, under stirring at low speed state, vacuumize staving, vacuum degree is-0.09 ~-0.1MPa, and the time is 30 minutes, namely obtains the cathode size prepared by the inventive method, about 360 minutes consuming time altogether.
According to lithium battery conventional production process, by cathode size through coating, dry, roll film, point cut into negative plate, then be assembled into lithium cobaltate cathode sheet, barrier film, electrolyte, battery case, the obtained stacked soft-package battery of 4244130 type after discharge and recharge activation.
Comparative example 2
Natural graphite cathode slurry production process conveniently, prepares about 7.5 hours consuming time, according to lithium battery conventional production process, and the obtained stacked soft-package battery of 4244130 type.
Carry out electrical performance testing to the stacked soft-package battery of 4244130 type obtained by embodiment 2 and comparative example 2, the total capacity of battery, volume energy density, 500 circulation conservation rates and internal resistance of cell test comparison result are as shown in table 1.
The circulation of each embodiment of table 1. and comparative example, multiplying power discharging and inner walkway comparing result
As can be seen from the above table, adopt the lithium battery obtained by cathode size prepared by the inventive method, all lower than the lithium battery obtained by conventional anode slurry production process in internal resistance, all higher than the lithium battery obtained by conventional anode slurry production process in battery capacity and volume energy density, 500 circulation volume conservation rates are lower than conventional anode, still there is the problem of decay mainly due to glass putty, but compare the behavior pattern of single glass putty, tool has greatly improved and improves.
Claims (6)
1. a preparation method for glass putty elements doped lithium battery cathode slurry, its by the following technical solutions:,
(1) thickener soln preparation: added by a certain percentage in deionized water solvent by thickener sodium carboxymethylcellulose (CMC), be uniformly dissolved with mixer, take out for subsequent use, the time is 60 ~ 100 minutes;
(2) dispersion powder: negative electrode active material, nanometer glass putty, conductive agent are added agitator dispersed with stirring in proportion, the time is 30 ~ 40 minutes, and time 1/2 and at the end of, scrape the powder on paddle and staving;
(3) high-viscosity stirring: add in 55% ~ 60% powder after above-mentioned stirring of thickener soln total amount, dispersed with stirring, the time is 60 ~ 70 minutes, and the time 1/3,2/3 and at the end of, scrape the slurry on paddle and staving, slurry temperature controls between 25 ~ 35 DEG C;
(4) low viscosity stirs: add in 35 ~ 30% slurries after above-mentioned high-viscosity stirring of thickener soln total amount, dispersed with stirring, the time is 60 ~ 70 minutes, and the time 1/3,2/3 and at the end of, scrape the slurry on paddle and staving, slurry temperature controls between 25 ~ 35 DEG C;
(5) viscosity test: the slurry viscosity that above-mentioned steps low viscosity stirs is carried out viscosity test, as at normal range (NR) 2000 ~ 5000MpaS, directly enters next step; As exceeded above-mentioned scope, then add 5% ~ 10% of thickener soln total amount, then dispersed with stirring, time is 30 ~ 40 minutes, and time 1/2 and at the end of, scrape the slurry on paddle and staving, detect a slurry viscosity again, reaching range of viscosities requirement can enter next step;
(6) binding agent adds: add binding agent SBR, dispersed with stirring, the time is 10 ~ 30 minutes;
(7) vacuum froth breaking: under stirring at low speed state, vacuumize staving, vacuum degree is-0.09 ~-0.1MPa, and the time is 15 ~ 30 minutes, namely obtains the cathode size prepared by the inventive method.
2. the preparation method of a kind of glass putty elements doped lithium battery cathode slurry according to claim 1, it is characterized in that, in above-mentioned steps (2), negative electrode active material is one or more mixtures in Delanium, native graphite, lithium titanate, hard carbon, carbonaceous mesophase spherules.
3. the preparation method of a kind of glass putty elements doped lithium battery cathode slurry according to claim 1, is characterized in that, in above-mentioned steps (2), the particle diameter of nanometer glass putty is not more than 70nm.
4. the preparation method of a kind of glass putty elements doped lithium battery cathode slurry according to claim 1, is characterized in that, in above-mentioned steps (2), conductive agent is one or more mixtures in conductive black, electrically conductive graphite, carbon nano-tube, carbon fiber, Graphene.
5. the preparation method of a kind of glass putty elements doped lithium battery cathode slurry according to claim 1, it is characterized in that, in above-mentioned steps (1), step (2), step (6), the mass ratio of negative electrode active material, nanometer glass putty, conductive agent, thickener, each component of binding agent is followed successively by (90-97): (1-10): (1-4): (1-5): (1-3), and solvent is 80% ~ 120% of above-mentioned each component total amount.
6. the preparation method of a kind of glass putty elements doped lithium battery cathode slurry according to claim 1, it is characterized in that, in above steps, mixing plant is double-planet de-airing mixer, and slurry temperature is that the method that utilization passes into the thermostatical circulating water of relevant temperature to planet stirring bucket controls.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524171.9A CN105206790A (en) | 2015-08-25 | 2015-08-25 | Preparation method for lithium battery anode slurry doped with tin powder |
| PCT/CN2016/087171 WO2017032166A1 (en) | 2015-08-25 | 2016-06-25 | Preparation method for lithium battery negative-electrode slurry doped with tin powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524171.9A CN105206790A (en) | 2015-08-25 | 2015-08-25 | Preparation method for lithium battery anode slurry doped with tin powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105206790A true CN105206790A (en) | 2015-12-30 |
Family
ID=54954333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510524171.9A Withdrawn CN105206790A (en) | 2015-08-25 | 2015-08-25 | Preparation method for lithium battery anode slurry doped with tin powder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105206790A (en) |
| WO (1) | WO2017032166A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895923A (en) * | 2016-05-18 | 2016-08-24 | 河南田园新能源科技有限公司 | Preparation method of primer used for coating cathode piece of copper foil current collector |
| CN106299272A (en) * | 2016-08-22 | 2017-01-04 | 浙江金开来新能源科技有限公司 | A kind of preparation method of silica flour doped lithium ion power battery cathode slurry |
| WO2017032166A1 (en) * | 2015-08-25 | 2017-03-02 | 田东 | Preparation method for lithium battery negative-electrode slurry doped with tin powder |
| CN106602051A (en) * | 2016-12-23 | 2017-04-26 | 山东精工电子科技有限公司 | Preparation method of negative electrode slurry for lithium titanate battery |
| CN110265648A (en) * | 2019-06-27 | 2019-09-20 | 郑州比克电池有限公司 | A kind of negative electrode slurry and preparation method of Soft Roll poly-lithium battery |
| CN112563478A (en) * | 2020-12-10 | 2021-03-26 | 深圳中科瑞能实业有限公司 | Alloy type negative electrode slurry based on modification, preparation method and secondary battery |
| CN112687835A (en) * | 2020-12-25 | 2021-04-20 | 惠州亿纬创能电池有限公司 | Preparation method of negative electrode slurry |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823762B (en) * | 2021-09-16 | 2023-07-28 | 湖北亿纬动力有限公司 | Mixing method of negative electrode slurry, battery preparation method and application |
| CN114300643B (en) * | 2022-01-17 | 2022-08-30 | 深圳光宇电源科技有限公司 | Method for removing bubbles of negative electrode of lithium battery and improving coating dark spots and exposed foil of negative electrode |
| CN114464872B (en) * | 2022-01-24 | 2023-08-29 | 西安交通大学 | Application of antimony nanosheets doped with halogen on surface in lithium ion battery |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103137951B (en) * | 2011-11-22 | 2016-08-31 | 宁波杉杉新材料科技有限公司 | A kind of tin-based composite anode materials for lithium-ion batteries and preparation method thereof |
| CN104681785A (en) * | 2015-02-12 | 2015-06-03 | 山东精工电子科技有限公司 | Lithium ion battery anode coating material and preparation method thereof |
| CN105206790A (en) * | 2015-08-25 | 2015-12-30 | 田东 | Preparation method for lithium battery anode slurry doped with tin powder |
-
2015
- 2015-08-25 CN CN201510524171.9A patent/CN105206790A/en not_active Withdrawn
-
2016
- 2016-06-25 WO PCT/CN2016/087171 patent/WO2017032166A1/en not_active Application Discontinuation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017032166A1 (en) * | 2015-08-25 | 2017-03-02 | 田东 | Preparation method for lithium battery negative-electrode slurry doped with tin powder |
| CN105895923A (en) * | 2016-05-18 | 2016-08-24 | 河南田园新能源科技有限公司 | Preparation method of primer used for coating cathode piece of copper foil current collector |
| CN106299272A (en) * | 2016-08-22 | 2017-01-04 | 浙江金开来新能源科技有限公司 | A kind of preparation method of silica flour doped lithium ion power battery cathode slurry |
| CN106602051A (en) * | 2016-12-23 | 2017-04-26 | 山东精工电子科技有限公司 | Preparation method of negative electrode slurry for lithium titanate battery |
| CN110265648A (en) * | 2019-06-27 | 2019-09-20 | 郑州比克电池有限公司 | A kind of negative electrode slurry and preparation method of Soft Roll poly-lithium battery |
| CN112563478A (en) * | 2020-12-10 | 2021-03-26 | 深圳中科瑞能实业有限公司 | Alloy type negative electrode slurry based on modification, preparation method and secondary battery |
| CN112687835A (en) * | 2020-12-25 | 2021-04-20 | 惠州亿纬创能电池有限公司 | Preparation method of negative electrode slurry |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017032166A1 (en) | 2017-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105140521B (en) | A kind of preparation method of cathode of lithium battery slurry | |
| CN105024044A (en) | Preparation method of high-capacity silica-powder-doped lithium battery anode slurry | |
| CN105070915A (en) | Method for preparing lithium battery graphite cathode slurry | |
| CN105206790A (en) | Preparation method for lithium battery anode slurry doped with tin powder | |
| CN105161676A (en) | Preparation method for lithium iron phosphate cathode slurry | |
| CN107240688B (en) | A kind of silicium cathode material and preparation method thereof of sulfenyl solid electrolyte cladding | |
| CN105185951A (en) | Preparation method of lithium battery cathode slurry | |
| CN103199258B (en) | Anode material for lithium-ion batteries, anode preparation method and lithium ion battery | |
| CN105161675A (en) | Preparation method for lithium titanate negative electrode slurry of lithium battery | |
| CN105047858A (en) | Preparation method for lithium cobalt oxide cathode slurry | |
| CN109301215A (en) | A kind of high capacity silicon-carbon cathode active material and preparation method thereof and its application | |
| CN107275574A (en) | Preparation method, lithium battery anode piece and the lithium battery of positive pole aqueous slurry | |
| CN105161709A (en) | Preparation method of lithium manganate cathode slurry | |
| CN105870452A (en) | Anode material, lithium ion battery with anode material and preparation method | |
| CN109546085B (en) | Carbon-silicon negative electrode plate using high-viscosity lithium binder and preparation method thereof | |
| CN107910513A (en) | Compound negative electrode of lithium ion battery of a kind of graphene/silicon and preparation method thereof | |
| CN111517374B (en) | Fe7S8Preparation method of/C composite material | |
| CN105428614A (en) | Nitrogen-doped porous composite negative electrode material and preparation method therefor | |
| CN110993884A (en) | Lithium ion battery negative electrode slurry, preparation method, negative electrode plate and battery | |
| CN113903980A (en) | Lithium ion battery | |
| CN104766976A (en) | Lithium ion secondary battery negative pole piece and preparation method thereof | |
| CN104993110A (en) | Preparation method of composite negative electrode material for lithium ion battery | |
| CN113644271B (en) | Sodium supplement additive for negative electrode of sodium ion battery and negative electrode material | |
| CN105655590A (en) | Method for preparing spherical lithium/sodium battery negative electrode carbon material | |
| CN113285050A (en) | Li-M-X-based solid lithium battery anode and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151230 |
|
| WW01 | Invention patent application withdrawn after publication |