CN110311087A - A kind of anode material of lithium battery preparation process - Google Patents
A kind of anode material of lithium battery preparation process Download PDFInfo
- Publication number
- CN110311087A CN110311087A CN201810229036.5A CN201810229036A CN110311087A CN 110311087 A CN110311087 A CN 110311087A CN 201810229036 A CN201810229036 A CN 201810229036A CN 110311087 A CN110311087 A CN 110311087A
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- drying
- anode material
- preparation process
- battery preparation
- 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.)
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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
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of anode material of lithium battery preparation process, its packet adhesive preparation, is mixed for four times, detects the process flows such as sieving drying materials；The advantages that a kind of anode material of lithium battery preparation process of the invention has process flow simple, and production standardization facilitates operation, is convenient for industrialized production, and raw material is relatively easily obtained, and cost of manufacture is cheap, high production efficiency.
Description
Technical field
The present invention relates to electrode material of lithium battery preparation technical field, in particular to a kind of anode material of lithium battery prepares work
Skill.
Background technique
Lithium ion battery is the new generation of green high-energy battery of performance brilliance, it has also become the emphasis of hi-tech development it
One, lithium ion battery has the following characteristics that high voltage, high capacity, low consumption, memory-less effect, nuisanceless, small in size, internal resistance
It is small, self discharge is few, cycle-index is more, because of its These characteristics, lithium ion battery has application to mobile phone, laptop, takes the photograph
The various fields such as camera, digital camera.
Lithium battery is mainly made of positive electrode, negative electrode material, diaphragm and electrolyte etc., and positive electrode is in the total of lithium battery
40% or more ratio is occupied in cost, and the performance of positive electrode directly affects the performance indexes of lithium battery, so
Anode material of lithium battery occupies core status, therefore the direct shadow of efficient standardized production of anode material of lithium battery in lithium battery
It rings and arrives lithium battery yield.
Summary of the invention
The purpose of the present invention is to provide a kind of anode material of lithium battery preparation processes, make the production of anode material of lithium battery
Standardization produces more efficient.
The technical solution adopted in the present invention is as follows: a kind of anode material of lithium battery preparation process, its steps include:
(1) drying materials: conductive agent drying, positive active material are dried, and drying temperature is 120 DEG C, and the time is 240 minutes.
(2) it stirs for the first time: the conductive agent after drying and the positive active material after drying being mixed 40 minutes, stirred
Mix speed revolution 15Hz.
(3) it stirs for second: after being stirred, the adhesive prepared is added and is mixed 60 minutes, mixing speed public affairs/from
Turning speed-frequency is 25/35Hz.
(4) third time stirs: vacuum degree≤- 0.085MPa, and mixing speed public affairs/rotation speed-frequency is the feelings of 25/35Hz
Continue stirring 180 minutes under condition.
(5) the 4th stirrings: vacuum degree≤- 0.085MPa, mixing speed public affairs/rotation speed-frequency are the feelings of 15/20Hz
Under condition, mix slowly 30 minutes.
(6) it mixes slowly, measurement viscosity, granularity and solid content.
(7) after measurement is qualified, by slurry vacuum, be sieved 150 mesh, and anode material of lithium battery preparation is completed.
In a preferred embodiment of the present invention, the preparation step of described adhesive are as follows: first by PVDF(polyvinylidene fluoride
Alkene) drying；After the completion of drying, with NMP(N- methyl pyrrolidone) it is stirred under vacuum, mixing speed revolution/rotation 25/35Hz is stirred
Mixing the time is 2 hours；Tested viscosity, filtering glue, adhesive preparation are completed.
In a preferred embodiment of the present invention, the PVDF(Kynoar) drying time be two hours, drying temperature
Degree is 100 DEG C.
In a preferred embodiment of the present invention, the preparation of described adhesive can be stirred with drying materials and for the first time
It carries out simultaneously, improves the production efficiency of anode material of lithium battery.
A kind of anode material of lithium battery preparation process of the invention has process flow simple, and production standardization facilitates behaviour
The advantages that work, is convenient for industrialized production, and raw material is relatively easily obtained, and cost of manufacture is cheap, high production efficiency.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is a kind of process flow chart of anode material of lithium battery preparation process provided by the invention.
Specific embodiment
Below in conjunction with attached drawing and the preferred embodiments of the present invention will be described in detail, so that advantages and features of the invention
It can be easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1, a kind of anode material of lithium battery preparation process of the embodiment of the present invention, its steps include:
(1) drying materials: conductive agent drying, positive active material are dried, and drying temperature is 120 DEG C, and the time is 240 minutes.
(2) it stirs for the first time: the conductive agent after drying and the positive active material after drying being mixed 40 minutes, stirred
Mix speed revolution 15Hz.
(3) it stirs for second: after being stirred, the adhesive prepared is added and is mixed 60 minutes, mixing speed public affairs/from
Turning speed-frequency is 25/35Hz.
(4) third time stirs: vacuum degree≤- 0.085MPa, and mixing speed public affairs/rotation speed-frequency is the feelings of 25/35Hz
Continue stirring 180 minutes under condition.
(5) the 4th stirrings: vacuum degree≤- 0.085MPa, mixing speed public affairs/rotation speed-frequency are the feelings of 15/20Hz
Under condition, mix slowly 30 minutes.
(6) it mixes slowly, measurement viscosity, granularity and solid content.
(7) after measurement is qualified, by slurry vacuum, be sieved 150 mesh, and anode material of lithium battery preparation is completed.
Further illustrate, the preparation step of described adhesive are as follows: first by PVDF(Kynoar) drying；Drying is completed
Afterwards, with NMP(N- methyl pyrrolidone) be stirred under vacuum, mixing speed revolution/rotation 25/35Hz, mixing time be 2 hours；It surveys
Viscosity, filtering glue are tried, adhesive preparation is completed.
Further illustrate, the PVDF(Kynoar) drying time be two hours, drying temperature be 100 DEG C.
It further illustrates, the preparation of described adhesive can be with drying materials and stirring for the first time carries out simultaneously, improves
The production efficiency of anode material of lithium battery.
Compared with prior art, a kind of anode material of lithium battery preparation process provided by the invention can in the drying materials stage
With the dried material of uniform and complete；Dispersing technology is mixed in the entire production technology of lithium ion battery to the qualitative effects of product
Degree is greater than 30%, is most important link in entire production technology, stirring technique provided by the invention can preferably make liquid with
Being mutually mixed, dissolving, dispersing between liquid, liquid and solid material, and it is easy to operate；The preparation of adhesive in embodiment
It can be carried out simultaneously with drying materials and first time stirring, also improve the production efficiency of anode material of lithium battery, therefore this hair
A kind of anode material of lithium battery preparation process of bright offer has process flow simple, and production standardization facilitates operation, is convenient for work
The advantages that industry metaplasia produces, and raw material is relatively easily obtained, and cost of manufacture is cheap, high production efficiency.
Embodiment described above is only explanation of the invention, is not intended to limit the invention in any way, it is all according to the present invention
Working principle is formulated made any simple modification, change and equivalence change to above embodiments, still falls within of the invention
In protection scope.
Claims (4)
1. a kind of anode material of lithium battery preparation process, it is characterised in that: the step of the anode material of lithium battery preparation process
Include:
Drying materials: conductive agent drying, positive active material are dried, and drying temperature is 120 DEG C, and the time is 240 minutes；
It stirs: the conductive agent after drying and the positive active material after drying being mixed 40 minutes, mixing speed for the first time
Revolve 15Hz；
Second of stirring: after being stirred, being added the adhesive prepared and be mixed 60 minutes, mixing speed public affairs/rotation revolving speed
Frequency is 25/35Hz；
Third time stirs: vacuum degree≤- 0.085MPa, and mixing speed public affairs/rotation speed-frequency continues in the case where being 25/35Hz
Stirring 180 minutes；
4th stirring: vacuum degree≤- 0.085MPa, in the case that mixing speed public affairs/rotation speed-frequency is 15/20Hz, slowly
Speed stirring 30 minutes；
It mixes slowly, measurement viscosity, granularity and solid content；
After measurement is qualified, by slurry vacuum, be sieved 150 mesh, and anode material of lithium battery preparation is completed.
2. a kind of anode material of lithium battery preparation process according to claim 1, it is characterized in that: first that PVDF(is poly- inclined
Vinyl fluoride) drying；After the completion of drying, with NMP(N- methyl pyrrolidone) it is stirred under vacuum, mixing speed revolution/rotation 25/
35Hz, mixing time are 2 hours；Tested viscosity, filtering glue, adhesive preparation are completed.
3. a kind of anode material of lithium battery preparation process according to claim 1, it is characterized in that: the PVDF(gathers inclined fluorine
Ethylene) drying time be two hours, drying temperature be 100 DEG C.
4. a kind of anode material of lithium battery preparation process according to claim 1, it is characterized in that: the system of described adhesive
It is standby to be carried out simultaneously with drying materials and first time stirring, improve the production efficiency of anode material of lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229036.5A CN110311087A (en) | 2018-03-20 | 2018-03-20 | A kind of anode material of lithium battery preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229036.5A CN110311087A (en) | 2018-03-20 | 2018-03-20 | A kind of anode material of lithium battery preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110311087A true CN110311087A (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810229036.5A Pending CN110311087A (en) | 2018-03-20 | 2018-03-20 | A kind of anode material of lithium battery preparation process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780032A (en) * | 2004-11-22 | 2006-05-31 | 中国电子科技集团公司第十八研究所 | Production of composite anode with manganese lithium for lithium ion cell |
| CN101901906A (en) * | 2010-07-22 | 2010-12-01 | 东莞新能源科技有限公司 | Lithium ion secondary battery and cathode material prepared by same |
| CN102347480A (en) * | 2010-08-02 | 2012-02-08 | 陈恒龙 | Preparation method of lithium battery anode slurry |
| CN106252603A (en) * | 2016-08-31 | 2016-12-21 | 中航锂电（洛阳）有限公司 | A kind of preparation method of pulp of lithium ion battery |
| 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
- 2018-03-20 CN CN201810229036.5A patent/CN110311087A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780032A (en) * | 2004-11-22 | 2006-05-31 | 中国电子科技集团公司第十八研究所 | Production of composite anode with manganese lithium for lithium ion cell |
| CN101901906A (en) * | 2010-07-22 | 2010-12-01 | 东莞新能源科技有限公司 | Lithium ion secondary battery and cathode material prepared by same |
| CN102347480A (en) * | 2010-08-02 | 2012-02-08 | 陈恒龙 | Preparation method of lithium battery anode slurry |
| CN106252603A (en) * | 2016-08-31 | 2016-12-21 | 中航锂电（洛阳）有限公司 | A kind of preparation method of pulp of lithium ion battery |
| 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 |
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Application publication date: 20191008 |
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