CN109346677A - A kind of preparation method and lithium battery of lithium battery anode slurry - Google Patents
A kind of preparation method and lithium battery of lithium battery anode slurry Download PDFInfo
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- CN109346677A CN109346677A CN201811287018.9A CN201811287018A CN109346677A CN 109346677 A CN109346677 A CN 109346677A CN 201811287018 A CN201811287018 A CN 201811287018A CN 109346677 A CN109346677 A CN 109346677A
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- parts
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present invention provides a kind of preparation method of lithium battery anode slurry and lithium batteries, the preparation method includes: Step 1: the conductive agent of the active material of the first parts by weight and the second parts by weight to be placed in ball mill to the ball milling processing for carrying out the first scheduled duration, to obtain finely dispersed mixed powder, and then improve the chemical property of battery.
Description
Technical field
The present invention relates to battery technology fields, and in particular to a kind of preparation method and lithium battery of lithium battery anode slurry.
Background technique
Lithium ion battery has many advantages, such as that energy density is high, has extended cycle life, is environmentally friendly, therefore, not only in 3C
Digital domain is applied widely, and is also developed rapidly in electric automobiles in recent years.
Lithium ion battery generally comprises the major parts such as positive plate, negative electrode tab, diaphragm, electrolyte, wherein existing anode
The preparation process of piece is that solvent is added simultaneously into mixture after mixing active material, conductive agent, binder in the dry state
Anode sizing agent is obtained after evenly mixing, then slurry is applied to collection liquid surface, obtains positive plate after drying.It follows that
The performance of anode sizing agent has a major impact the performance of lithium ion battery, and each component in anode sizing agent disperses more uniform, just
The processing performance of pole piece is better.
But since in actual production process, the durations such as active material, conductive agent, binder occur reuniting together or disperse
Non-uniform situation, and then cause the distribution of impedance of positive plate everywhere uneven, lithium ion battery is in charge and discharge process, just
Active material on pole piece does not play its effect all, causes the capacity of lithium ion battery lower.
Summary of the invention
In view of this, one of the objects of the present invention is to provide a kind of preparation method of lithium ion battery anode glue size and lithiums
Battery, it is uneven to solve the dispersion of each component in lithium ion battery anode glue size existing in the prior art, cause lithium ion
The internal resistance of battery is larger, the problem of chemical property difference.
In order to achieve the above objectives, on the one hand, the invention adopts the following technical scheme:
A kind of preparation method of lithium battery anode slurry, the preparation method include:
It is carried out Step 1: the conductive agent of the active material of the first parts by weight and the second parts by weight is placed in ball mill
The ball milling of first scheduled duration is processed, to obtain finely dispersed mixed powder.
Preferably, first parts by weight are 23 parts to 25 parts；And/or
Second parts by weight are 1 part to 3 parts；And/or
The active material includes LiFePO4, cobalt acid lithium, LiMn2O4 and/or lithium ferric manganese phosphate；And/or
The conductive agent includes super P, acetylene black, carbon nanotube, carbon black and/or porous carbon.
Preferably, the preparation method further include:
Step 2: the NMP of third parts by weight and the PVDF of the 4th parts by weight are added in the first agitating device, and press
The stirring of the second scheduled duration is carried out according to the first mixing parametric, then, carries out third scheduled duration according to the second mixing parametric
Stirring obtains PVDF glue.
Preferably, the third parts by weight are 20 parts to 30 parts, and/or,
4th parts by weight are 1 part to 3 parts；And/or
First mixing parametric includes mixing speed, and the mixing speed is 15rpm to 30；And/or
Second scheduled duration is 30 minutes to 60 minutes；And/or
Second mixing parametric includes mixing speed and rate of dispersion, and the mixing speed is 20rpm to 40rpm, institute
Stating rate of dispersion is 500rpm to 1000rpm；And/or
The third scheduled duration is 2.5 hours to 4 hours.
Preferably, the preparation method further include:
Step 3: by the step 2 of the whole mixed powder and the 5th parts by weight that are prepared in the step 1
The PVDF glue of middle preparation is added in the second agitating device, and carries out third scheduled duration according to third mixing parametric
Stirring, cools down second agitating device while being stirred, so that the slurry in second agitating device
Temperature be in 25 DEG C to 45 DEG C between.
Preferably, the 5th parts by weight are 11 parts to 16 parts；The third mixing parametric includes mixing speed, described
Mixing speed is 15rpm to 30rpm；And/or
The third scheduled duration is 45 minutes to 90 minutes；And/or
When the agitating device is cooled down, cooled down using water-cooling pattern.
Preferably, the preparation method further include:
Step 4: moving back the slurry scraper in second agitating device in the step 3 after processing is completed to institute
It states in the first agitating device, and the PVDF glue prepared in the step 2 of the 6th parts by weight is added thereto, press
The stirring of the 4th scheduled duration is carried out according to the 4th mixing parametric, then, carries out the 5th scheduled duration according to the 5th mixing parametric
Stirring.
Preferably, the 6th parts by weight are 9 parts to 14 parts；And/or
4th mixing parametric includes mixing speed, and the mixing speed is 15rpm to 30rpm；And/or
4th scheduled duration is 15 minutes to 30 minutes；And/or
5th mixing parametric includes mixing speed and rate of dispersion, and the mixing speed is 20rpm to 40rpm, institute
Stating rate of dispersion is 700rpm to 1200rpm.
Preferably, the preparation method further include:
Step 5: carrying out the stirring of the 6th scheduled duration according to the 6th mixing parametric after completing step 4, then go true
Sky, so that the vacuum degree in first agitating device is greater than or equal to negative 90KPa.
Preferably, the 6th mixing parametric includes mixing speed, and the mixing speed is 15rpm to 25rpm；And/or
6th scheduled duration is 20 minutes to 60 minutes.
In order to achieve the above object, on the other hand, the invention adopts the following technical scheme:
A kind of lithium battery, including anode, the slurry that uses is using lithium battery anode slurry as described above on the anode
Preparation method prepared.
Active material and conductive agent are carried out ball milling by the preparation method and lithium battery of the lithium battery anode slurry in the application
Processing, so that active material and conductive agent can disperse and mix chemical property that is more uniform, and then improving battery.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the flow chart of the preparation method of the lithium battery anode slurry of specific embodiment of the invention offer.
Specific embodiment
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Attached drawing is provided to the purpose of explanation, and attached drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
As shown in Figure 1, present applicant proposes a kind of preparation methods of battery anode slurry, comprising the following steps:
It is carried out Step 1: the conductive agent of the active material of the first parts by weight and the second parts by weight is placed in ball mill
The ball milling of first scheduled duration is processed, to obtain finely dispersed mixed powder.
Wherein it is preferred to which active material includes LiFePO4, cobalt acid lithium, LiMn2O4 and/or lithium ferric manganese phosphate, conductive agent
It is 23 parts to 25 parts including super P, acetylene black, carbon nanotube, carbon black and/or the first parts by weight of porous carbon, the second weight
Number is 1 part to 3 parts, and the first scheduled duration is 25 minutes to 40 minutes, to guarantee that the mixed powder being ground is uniform.Use step
Conductive agent, can be more uniformly attached to the surface of active material by the mixed powder that a kind of rapid method obtains, and be reduced in battery
Resistance.
Step 2: the NMP of third parts by weight and the PVDF of the 4th parts by weight are added in the first agitating device, and press
The stirring of the second scheduled duration is carried out according to the first mixing parametric, then, carries out third scheduled duration according to the second mixing parametric
Stirring obtains PVDF glue.It is to be mixed slowly when being stirred according to the first mixing parametric；According to the second stirring ginseng
It is quickly to be stirred when number is stirred, to guarantee to obtain good mixing effect.Due to being prepared for glue first,
Be conducive to PVDF to be completely dissolved, and conductive agent and active material are dispersed with glue, better dispersion effect can be obtained.
Wherein, third parts by weight are 20 parts to 30 parts, and the 4th parts by weight are 1 part to 3 parts, and the first mixing parametric includes
Mixing speed, mixing speed are 15rpm to 30rpm, and the second scheduled duration is 30 minutes to 60 minutes.Second mixing parametric includes
Mixing speed and rate of dispersion, mixing speed are 20rpm to 40rpm, and rate of dispersion is 500rpm to 1000rpm, and third is predetermined
Shi Changwei 2.5 hours to 4 hours.
Step 3: the PVDF that will be prepared in the step of the whole mixed powders prepared in step 1 and five parts by weight two
Glue is added in the second agitating device, and the stirring of third scheduled duration is carried out according to third mixing parametric, is being stirred
While the second agitating device is cooled down so that the temperature of the slurry in the second agitating device be in 25 DEG C to 45 DEG C it
Between.It is relatively operate slowly, to guarantee that PVDF glue can be carried out with mixed powder when being stirred according to third mixing parametric
It is sufficiently mixed.During being stirred, the second agitating device is cooled down, is controlled with the temperature to slurry, thus
Guarantee that sizing material has preferable using effect.In carrying out cooling procedure, it is preferred to use water-cooling pattern is cooled down.In the step
It has been simply added into part PVDF glue, has been dispersed by high-viscosity stirring, the agitating paddle of the second agitating device makees the machinery of slurry
It is firmly big, better dispersion effect can be played.Wherein, agitating paddle to the mechanicals efforts of slurry include squeeze, collision and/or
Friction, the slurry in the second agitating device is dispersed and be mixed by various forms.
Preferably, the 5th parts by weight are 11 parts to 16 parts, and third mixing parametric includes mixing speed, and mixing speed is
15rpm to 30rpm, third scheduled duration are 45 minutes to 90 minutes.
It is filled Step 4: moving back the slurry scraper in the second agitating device in step 3 after processing is completed to the first stirring
In setting, and the PVDF glue for preparing in the step of six parts by weight are added thereto two, the is carried out according to the 4th mixing parametric
The stirring of four scheduled durations then carries out the stirring of the 5th scheduled duration according to the 5th mixing parametric.Join according to the 4th stirring
It is to be mixed slowly when number is stirred；It is quickly to be stirred when being stirred according to the 5th mixing parametric.At this
In step, remaining glue is added again, the viscosity of the slurry in the first agitating device is reduced, makes to starch using low viscosity stirring
Each component in material, which is thoroughly dispersed, to come, to obtain the more preferably reliable slurry of quality.
Wherein, the 6th parts by weight are 9 parts to 14 parts, and the 4th mixing parametric includes mixing speed, mixing speed 15rpm
To 30rpm, the 4th scheduled duration is 15 minutes to 30 minutes, and the 5th mixing parametric includes mixing speed and rate of dispersion, stirring
Speed is 20rpm to 40rpm, and rate of dispersion is 700rpm to 1200rpm.
Step 5: carrying out the stirring of the 6th scheduled duration according to the 6th mixing parametric after completing step 4, then go true
Sky, so that the vacuum degree in the first agitating device is greater than or equal to negative 90KPa.It is when being stirred according to the 6th mixing parametric
It is mixed slowly, to guarantee mixing effect.During long agitation, a large amount of gas can be generated in the first agitating device
Bubble, the presence of bubble are easy to cause the performance of slurry to decline, therefore carry out vacuum pumping to the first agitating device, to eliminate slurry
Bubble in material.
Wherein, the 6th mixing parametric includes mixing speed, and mixing speed is 15rpm to 25rpm, and the 6th scheduled duration is 20
Minute was to 60 minutes.The slurry prepared using the preparation method of the lithium battery anode slurry in the application, by repeatedly making
The standby and anode sizing agent fineness test discovery to preparing every time respectively, the fineness of slurry are 4um, 3um, 5um, 4um, 4um, and
According to conventional steps (it is dry-mixed, mediate, dispersion, defoaming) preparation anode sizing agent, fineness 7um, 5um, 13um, 5um, 4um,
Illustrate that the anode sizing agent prepared by step of the present invention is finer and smoother uniformly, dispersion effect is more preferable.
Present invention also provides a kind of lithium battery, battery includes anode, and the slurry used on battery uses above-mentioned lithium
It is prepared by the preparation method of battery anode slurry.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
The above is only a preferred embodiment of the present invention, is not intended to restrict the invention, to those skilled in the art,
The invention can have various changes and changes.It is all within the spirit and principles of the present invention made by any modification, equivalent replacement,
Improve etc., it should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of preparation method of lithium battery anode slurry, which is characterized in that the preparation method includes:
First is carried out Step 1: the conductive agent of the active material of the first parts by weight and the second parts by weight is placed in ball mill
The ball milling of scheduled duration is processed, to obtain finely dispersed mixed powder.
2. the preparation method of lithium battery anode slurry according to claim 1, which is characterized in that first parts by weight
It is 23 parts to 25 parts；And/or
Second parts by weight are 1 part to 3 parts；And/or
The active material includes LiFePO4, cobalt acid lithium, LiMn2O4 and/or lithium ferric manganese phosphate；And/or
The conductive agent includes super P, acetylene black, carbon nanotube, carbon black and/or porous carbon.
3. the preparation method of lithium battery anode slurry according to claim 1, which is characterized in that the preparation method is also wrapped
It includes:
Step 2: the NMP of third parts by weight and the PVDF of the 4th parts by weight are added in the first agitating device, and according to the
One mixing parametric carries out the stirring of the second scheduled duration, then, the stirring of third scheduled duration is carried out according to the second mixing parametric,
Obtain PVDF glue.
4. the preparation method of lithium battery anode slurry according to claim 3, which is characterized in that the third parts by weight
It is 20 parts to 30 parts, and/or,
4th parts by weight are 1 part to 3 parts；And/or
First mixing parametric includes mixing speed, and the mixing speed is 15rpm to 30rpm；And/or
Second scheduled duration is 30 minutes to 60 minutes；And/or
Second mixing parametric includes mixing speed and rate of dispersion, and the mixing speed is 20rpm to 40rpm, and described point
Dissipating speed is 500rpm to 1000rpm；And/or
The third scheduled duration is 2.5 hours to 4 hours.
5. the preparation method of lithium battery anode slurry according to claim 3, which is characterized in that the preparation method is also wrapped
It includes:
Step 3: by being made in the step 2 of the whole prepared in the step 1 the mixed powder and the 5th parts by weight
The standby PVDF glue is added in the second agitating device, and carries out stirring for third scheduled duration according to third mixing parametric
It mixes, second agitating device is cooled down while being stirred, so that the slurry in second agitating device
Temperature is between 25 DEG C to 45 DEG C.
6. the preparation method of lithium battery anode slurry according to claim 5, which is characterized in that the 5th parts by weight
It is 11 parts to 16 parts；The third mixing parametric includes mixing speed, and the mixing speed is 15rpm to 30rpm；And/or
The third scheduled duration is 45 minutes to 90 minutes；And/or
When the agitating device is cooled down, cooled down using water-cooling pattern.
7. the preparation method of lithium battery anode slurry according to claim 5, which is characterized in that the preparation method is also wrapped
It includes:
Step 4: moving back the slurry scraper in second agitating device in the step 3 after processing is completed to described
In one agitating device, and the PVDF glue for preparing in the step 2 of the 6th parts by weight is added thereto, according to the
Four mixing parametrics carry out the stirring of the 4th scheduled duration, then, the stirring of the 5th scheduled duration are carried out according to the 5th mixing parametric.
8. the preparation method of lithium battery anode slurry according to claim 7, which is characterized in that the 6th parts by weight
It is 9 parts to 14 parts；And/or
4th mixing parametric includes mixing speed, and the mixing speed is 15rpm to 30rpm；And/or
4th scheduled duration is 15 minutes to 30 minutes；And/or
5th mixing parametric includes mixing speed and rate of dispersion, and the mixing speed is 20rpm to 40rpm, and described point
Dissipating speed is 700rpm to 1200rpm.
9. the preparation method of lithium battery anode slurry according to claim 7, which is characterized in that the preparation method is also wrapped
It includes:
Step 5: carry out the stirring of the 6th scheduled duration according to the 6th mixing parametric after completing step 4, then go vacuum,
So that the vacuum degree in first agitating device is greater than or equal to negative 90KPa.
10. the preparation method of lithium battery anode slurry according to claim 9, which is characterized in that the 6th stirring ginseng
Number includes mixing speed, and the mixing speed is 15rpm to 25rpm；And/or
6th scheduled duration is 20 minutes to 60 minutes.
11. a kind of lithium battery, including anode, which is characterized in that the slurry used on the anode uses such as claims 1 to 10
One of described in the preparation method of lithium battery anode slurry prepared.
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| CN201811287018.9A CN109346677A (en) | 2018-10-31 | 2018-10-31 | A kind of preparation method and lithium battery of lithium battery anode slurry |
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| CN201811287018.9A CN109346677A (en) | 2018-10-31 | 2018-10-31 | A kind of preparation method and lithium battery of lithium battery anode slurry |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060041649A (en) * | 2004-02-07 | 2006-05-12 | 주식회사 엘지화학 | Organic/inorganic composite porous layer-coated electrode and electrochemical device comprising the same |
| CN101937990A (en) * | 2010-09-27 | 2011-01-05 | 彩虹集团公司 | Preparation method of nano lithium iron phosphate positive slurry |
| CN101980396A (en) * | 2010-09-08 | 2011-02-23 | 秦皇岛市芯驰光电科技有限公司 | Method for preparing lithium ion battery anode paste |
| CN102709557A (en) * | 2012-06-05 | 2012-10-03 | 无锡合志科技有限公司 | Preparation method for anode paste of lithium iron phosphate battery |
| CN102738446A (en) * | 2011-04-15 | 2012-10-17 | 比克国际(天津)有限公司 | Lithium ion battery slurry, preparation method of the lithium ion battery slurry, and lithium ion battery |
| CN103346318A (en) * | 2013-07-01 | 2013-10-09 | 彩虹集团公司 | Li-ion positive electrode slurry and preparation method thereof |
| CN105489843A (en) * | 2015-12-29 | 2016-04-13 | 湖北宇电能源科技股份有限公司 | Manufacturing method for safe lithium ion power battery positive plate |
| CN106654166A (en) * | 2016-11-17 | 2017-05-10 | 浙江超威创元实业有限公司 | Slurry-homogenizing process for positive electrode slurry of lithium ion battery, positive electrode plate and lithium ion battery |
-
2018
- 2018-10-31 CN CN201811287018.9A patent/CN109346677A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060041649A (en) * | 2004-02-07 | 2006-05-12 | 주식회사 엘지화학 | Organic/inorganic composite porous layer-coated electrode and electrochemical device comprising the same |
| CN101980396A (en) * | 2010-09-08 | 2011-02-23 | 秦皇岛市芯驰光电科技有限公司 | Method for preparing lithium ion battery anode paste |
| CN101937990A (en) * | 2010-09-27 | 2011-01-05 | 彩虹集团公司 | Preparation method of nano lithium iron phosphate positive slurry |
| CN102738446A (en) * | 2011-04-15 | 2012-10-17 | 比克国际(天津)有限公司 | Lithium ion battery slurry, preparation method of the lithium ion battery slurry, and lithium ion battery |
| CN102709557A (en) * | 2012-06-05 | 2012-10-03 | 无锡合志科技有限公司 | Preparation method for anode paste of lithium iron phosphate battery |
| CN103346318A (en) * | 2013-07-01 | 2013-10-09 | 彩虹集团公司 | Li-ion positive electrode slurry and preparation method thereof |
| CN105489843A (en) * | 2015-12-29 | 2016-04-13 | 湖北宇电能源科技股份有限公司 | Manufacturing method for safe lithium ion power battery positive plate |
| CN106654166A (en) * | 2016-11-17 | 2017-05-10 | 浙江超威创元实业有限公司 | Slurry-homogenizing process for positive electrode slurry of lithium ion battery, positive electrode plate and lithium ion battery |
Non-Patent Citations (1)
| Title |
|---|
| 徐国荣 等: "《电化学设备与工程设计》", 31 March 2018, 中国矿业大学出版社 * |
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