CN109659508A - A kind of lithium ion battery anode glue size and preparation method thereof - Google Patents
A kind of lithium ion battery anode glue size and preparation method thereof Download PDFInfo
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- CN109659508A CN109659508A CN201711392605.XA CN201711392605A CN109659508A CN 109659508 A CN109659508 A CN 109659508A CN 201711392605 A CN201711392605 A CN 201711392605A CN 109659508 A CN109659508 A CN 109659508A
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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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
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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
- 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
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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
- H01M4/36—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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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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
- H01M4/36—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
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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
- H01M4/36—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
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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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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- 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 lithium ion battery anode glue size and preparation method thereof, the lithium ion battery anode glue size, including positive electrode active materials, conductive agent, binder and solvent；The binder includes first binder, and the first binder is acrylate copolymer.Lithium ion battery anode glue size of the invention is using the mixture of acrylate copolymer or acrylate copolymer and other binders as binder, the lithium ion battery anode glue size made be able to maintain for a long time it is not stratified, without precipitating and stable viscosity, substantially increase the stability of lithium ion battery anode glue size.
Description
Technical field
The present invention relates to technical field of lithium ion, in particular to a kind of lithium ion battery anode glue size and its
Preparation method.
Background technique
Lithium ion battery due to specific energy is big, operating voltage is high, service life cycle is long, memory-less effect, self discharge are small,
Pollution free green environment protection, the advantages that having extended cycle life, have been widely used in Portable mobile electronic device such as mobile phone, have taken the photograph
Camera, laptop etc. are also listed in the candidate power supply of electric car, space flight, military affairs and large-scale energy storage device.With lithium from
The development of sub- battery, the capacity, high and low temperature resistance and cycle life etc. of battery are required it is higher and higher, and cell size stir
This process plays a crucial role in battery manufacturing process.The stability of slurry directly affects the matter of slurry coating
Amount, and then the performances such as cycle life for influencing battery.
For traditional anode sizing agent using PVDF as binder, the stability of slurry is poor, sinks after shelving 12 hours
It forms sediment, the bad phenomenons such as viscosity decline of slurry are unfavorable for slurry storage and are used to prepare the positive plate of high quality.
Summary of the invention
In view of this, a kind of preparation method of lithium ion battery anode glue size provided by the invention, preferably overcomes
Problem and defect of the existing technology are stated, lithium ion battery anode glue size of the invention uses acrylate copolymer or acrylic acid
As binder, the lithium ion battery anode glue size made is able to maintain for a long time the mixture of polymer and other binders
It is not stratified, without precipitating and stable viscosity, substantially increase the stability of lithium ion battery anode glue size；In addition the lithium-ion electric
The preparation method of pond anode sizing agent is simple, and cost is relatively low, is suitble to large-scale industrial production, and high production efficiency.
A kind of lithium ion battery anode glue size, including positive electrode active materials, conductive agent, binder and solvent；The bonding
Agent includes first binder, and the first binder is acrylate copolymer.
Further, the positive electrode active materials, conductive agent, binder quality account for respectively the positive electrode active materials,
70~98.9%, 0.5~5% and the 0.6~25% of the gross mass of conductive agent and binder.
Further, the binder further includes the second binder, and second binder is butadiene-styrene rubber, carboxymethyl fibre
Tie up element, Kynoar, polytetrafluoroethylene (PTFE), hydroxypropyl methyl cellulose, polyvinyl alcohol, polyacrylamide, perfluoro propyl perfluor
One of the copolymer of vinyl ethers and polytetrafluoroethylene (PTFE), acrylonitrile multiple copolymer, sodium alginate and chitosan derivatives
Or it is a variety of.
Further, the acrylate copolymer is carbomer 934, Acritamer 940, Carbopol 941, Carbopol, card
Wave nurse 981, carbomer934, carbomer 1382, carbomer TR-1, carbomer TR-2, carbomer ETD2001, carbomer
ETD2020, carbomer ETD2050, carbomer ultrez10, carbomer ultrez20, carbomer ultrez21, carbomer Aqua
One of CC, carbomer Aqua SF-1, carbomer L10, carbomer EC-2 and carbomer EZ-4U or a variety of.
Further, the conductive agent is one in conductive black, electrically conductive graphite, carbon fiber, carbon nanotube and graphene
Kind is a variety of.
Further, the positive electrode active materials are cobalt acid lithium, LiMn2O4, lithium nickelate, LiFePO4, phosphoric acid vanadium lithium, phosphorus
One of sour manganese lithium, nickel cobalt manganese oxidate for lithium and nickel cobalt aluminium oxidate for lithium are a variety of.
Further, the solvent is water.
Further, the quality of the solvent accounts for the 20~50% of the gross mass of the anode sizing agent.
The present invention also provides a kind of preparation method of lithium ion battery anode glue size, the lithium ion battery anode glue size
For above-mentioned lithium ion battery anode glue size, the preparation method includes: by positive electrode active materials, conductive agent, binder and molten
Agent is uniformly mixed.
Further, the preparation method includes:
First positive electrode active materials and conductive agent are stirred, add solvent and binder, are uniformly mixed.
Further, the stirring rate is 1200~1800r/min.
Compared with prior art, a kind of beneficial effect of the preparation method of lithium ion battery anode glue size of the invention is:
(1) lithium ion battery anode glue size of the invention is using acrylate copolymer or acrylate copolymer and other bondings
The mixture of agent as binder, the lithium ion battery anode glue size made be able to maintain for a long time it is not stratified, without precipitating and
Stable viscosity substantially increases the stability of lithium ion battery anode glue size.
(2) preparation method of lithium ion battery anode glue size of the invention is simple, and cost is relatively low, is suitble to large-scale industry raw
It produces, and high production efficiency.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, makees detailed
It is described as follows.
Specific embodiment
To facilitate the understanding of the present invention, it elaborates below with reference to the mode of embodiment to technical solution of the present invention,
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention.
But the invention can be embodied in many other ways as described herein, those skilled in the art can be with
Similar improvement is done without violating the connotation of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention
The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail.
Term as used herein:
" by ... preparation " it is synonymous with "comprising".Term "comprising" used herein, " comprising ", " having ", " containing "
Or its any other deformation, it is intended that cover non-exclusionism includes.For example, composition, step, method comprising listed elements,
Product or device are not necessarily limited to those elements, but may include not expressly listed other elements or such composition, step
Suddenly, method, product or the intrinsic element of device.
Conjunction " by ... form " exclude any element that do not point out, step or component.If in claim,
This phrase will make claim closed, so that it is not included the material in addition to the material of those descriptions, but relative
Except customary impurities.When phrase " by ... form " be rather than immediately following theme in the clause that appears in claim main body after
When, only it is limited to element described in the clause；Other elements be not excluded the claim as a whole it
Outside.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1~5 ", described range should be interpreted as including range " 1~4 ", " 1~3 ", " 1~2 ", " 1~2 and 4~
5 ", " 1~3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to include its end
Value and all integers and score in the range.
"and/or" is used to indicate that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B).
The present invention provides a kind of lithium ion battery anode glue size, including positive electrode active materials, conductive agent, binder and molten
Agent；The binder includes first binder, and the first binder is acrylate copolymer.
Preferably, the positive electrode active materials, conductive agent, binder quality account for the positive electrode active materials respectively, lead
70~98.9%, the 0.5~5% and 0.6~25% of the gross mass of electric agent and binder；I.e. with the positive electrode active materials, institute
The gross mass for stating conductive agent and the binder is 100% meter, and the content of the positive electrode active materials is 70~98.9% such as
70%, 75%, 80%, 85%, 90%, 95% or 98.9% etc.；The content of the conductive agent be 0.5~5% such as 0.5%,
1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5% etc.；The content of the binder is 0.6~25% such as
0.6%, 5%, 8%, 10%, 12%, 15%, 18%, 20%, 22% or 25% etc..
Preferably, the binder further includes the second binder, and second binder is butadiene-styrene rubber (SBR), carboxylic first
Base cellulose (CMC), Kynoar (PVDF), polytetrafluoroethylene (PTFE) (PTFE), hydroxypropyl methyl cellulose (HPMC), polyethylene
Alcohol (PVA), polyacrylamide (PAM), perfluoro propyl perfluoroalkyl vinyl ether and the copolymer (PFA) of polytetrafluoroethylene (PTFE), acrylonitrile
One of multiple copolymer, sodium alginate and chitosan derivatives etc. are a variety of.
Above-mentioned acrylonitrile multiple copolymer can be enumerated as one of LA132, LA133 and LA135 or a variety of.
Preferably, the acrylate copolymer is carbomer 934, Acritamer 940, Carbopol 941, Carbopol, card wave
Nurse 981, carbomer934, carbomer 1382, carbomer TR-1, carbomer TR-2, carbomer ETD2001, carbomer
ETD2020, carbomer ETD2050, carbomer ultrez10, carbomer ultrez20, carbomer ultrez21, carbomer Aqua
One of CC, carbomer Aqua SF-1, carbomer L10, carbomer EC-2 and carbomer EZ-4U or a variety of.
Preferably, the conductive agent is one of conductive black, electrically conductive graphite, carbon fiber, carbon nanotube and graphene
Or it is a variety of.Wherein, conductive black can be enumerated as Super P or acetylene black etc.；Electrically conductive graphite can be enumerated as graphite KS6 etc..
Preferably, the positive electrode active materials are cobalt acid lithium, LiMn2O4, lithium nickelate, LiFePO4, phosphoric acid vanadium lithium, phosphoric acid
One of manganese lithium, nickel cobalt manganese oxidate for lithium and nickel cobalt aluminium oxidate for lithium are a variety of.
Preferably, the solvent is water.
It should be noted that the solvent of traditional anode sizing agent using having virose NMP, not only make production cost compared with
Height, while keeping production environment severe, there is also pollution surrounding enviroment, damage the hidden danger of human health.
The present invention is more environmentally friendly using the lithium ion battery anode glue size that water especially deionization water as solvent obtains, and cost
It is lower.Certainly, the solvent can be also one or more of water and N-Methyl pyrrolidone (NMP), ethyl alcohol and isopropanol
Mixture.
Preferably, the quality of the solvent accounts for the 20~50% of the gross mass of the anode sizing agent；I.e. with the anode slurry
The gross mass of material is 100% meter, the content of the solvent be 20~50% such as 20%, 25%, 30%, 35%, 40%, 45% or
50% etc..
Lithium ion battery anode glue size of the invention is using acrylate copolymer or acrylate copolymer and other binders
Mixture as binder, the lithium ion battery anode glue size made be able to maintain it is not stratified for a long time, without precipitating and steady
Fixed viscosity substantially increases the stability of lithium ion battery anode glue size.
The present invention also provides a kind of preparation method of lithium ion battery anode glue size, the lithium ion battery anode glue size
For above-mentioned lithium ion battery anode glue size, the preparation method includes: by positive electrode active materials, conductive agent, binder and molten
Agent is uniformly mixed.
Preferably, the preparation method includes:
First positive electrode active materials and conductive agent are stirred, add solvent and binder, are uniformly mixed.
Preferably, the stirring rate be 1200~1800r/min such as 1200r/min, 1300r/min, 1400r/min,
1500r/min, 1600r/min, 1700r/min or 1800r/min etc..
The mixed preparing of above-mentioned slurry can be enumerated as being stirred to obtain using common blender, can also be enumerated as using
Ultrasonic stirrer is stirred by ultrasonic to obtain.
The preparation method of lithium ion battery anode glue size of the invention is simple, and cost is relatively low, is suitble to large-scale industrial production,
And high production efficiency.
To facilitate the understanding of the present invention, below with reference to embodiment to further illustrate the technical scheme of the present invention.Applicant
Statement, the present invention illustrate detailed process equipment and process flow of the invention by following embodiments, but the present invention not office
It is limited to above-mentioned detailed process equipment and process flow, that is, does not mean that the present invention should rely on following detailed process equipments and technique stream
Cheng Caineng is implemented.It should be clear to those skilled in the art, any improvement in the present invention, to each original of product of the present invention
The equivalence replacement of material and addition, the selection of concrete mode of auxiliary element etc. all fall within protection scope of the present invention and open model
Within enclosing.
Embodiment 1
A kind of lithium ion battery anode glue size includes following raw material:
Positive electrode binder: carbomer ultrez20
Positive conductive agent: acetylene black
Positive electrode active materials: nickle cobalt lithium manganate
Positive solvent: water
The preparation method of the lithium ion battery anode glue size the following steps are included:
(1) after taking 95.5kg nickle cobalt lithium manganate and 2.5kg acetylene black to be added in agitator tank, with the stirring of 1200r/min
Rate stirs dry-mixed 30min.
(2) be added 150kg water and 2kg carbomer ultrez20 to it is above-mentioned it is dry-mixed after mixture in, with 1200r/min's
Stirring rate stirs 2h.
(3) by slurry collection obtained above into collecting tank.
Embodiment 2
A kind of lithium ion battery anode glue size includes following raw material:
Positive electrode binder: carbomer ETD2050, acrylonitrile multiple copolymer LA132
Positive conductive agent: acetylene black, graphite KS6
Positive electrode active materials: nickle cobalt lithium manganate, LiMn2O4
Positive solvent: water
The preparation method of the lithium ion battery anode glue size the following steps are included:
(1) 70kg nickle cobalt lithium manganate, 26kg LiMn2O4,1.5kg acetylene black and 1kg graphite KS6 is taken to be added in agitator tank
Afterwards, dry-mixed 1h is stirred with the stirring rate of 1300r/min.
(2) 100kg water, 0.5kg carbomer ETD2050 and 1kg acrylonitrile multiple copolymer LA132 is added to above-mentioned dry-mixed
In mixture afterwards, 2h is stirred with the stirring rate of 1300r/min.
(3) by slurry collection obtained above into collecting tank.
Embodiment 3
A kind of lithium ion battery anode glue size includes following raw material:
Positive electrode binder: carbomer Aqua SF-1, butadiene-styrene rubber
Positive conductive agent: acetylene black, graphite KS6
Positive electrode active materials: nickel cobalt lithium aluminate
Positive solvent: water
The preparation method of the lithium ion battery anode glue size the following steps are included:
(1) after taking 95.9kg nickel cobalt lithium aluminate, 1.5kg acetylene black and 1kg graphite KS6 to be added in agitator tank, with
The stirring rate of 1500r/min stirs dry-mixed 45min.
(2) be added 42.9kg water, 0.8kg carbomer Aqua SF-1 and 0.8kg butadiene-styrene rubber to it is above-mentioned it is dry-mixed after mixing
In object, 2.5h is stirred with the stirring rate of 1500r/min.
(3) by slurry collection obtained above into collecting tank.
Embodiment 4
A kind of lithium ion battery anode glue size includes following raw material:
Positive electrode binder: carbomer EC-2, carboxymethyl cellulose
Positive conductive agent: acetylene black, graphite KS6
Positive electrode active materials: LiFePO4
Positive solvent: water
The preparation method of the lithium ion battery anode glue size the following steps are included:
(1) after taking 96kg LiFePO4,1.5kg acetylene black and 1kg graphite KS6 to be added in agitator tank, with 1600r/min
Stirring rate stir dry-mixed 45min.
(2) be added 66.7kg water, 0.9kg carbomer EC-2 and 0.6kg carboxymethyl cellulose to it is above-mentioned it is dry-mixed after mixing
In object, 2.5h is stirred with the stirring rate of 1600r/min.
(3) by slurry collection obtained above into collecting tank.
Embodiment 5
A kind of lithium ion battery anode glue size includes following raw material:
Positive electrode binder: carbomer 934
Positive conductive agent: carbon nanotube, graphite KS6
Positive electrode active materials: LiMn2O4
Positive solvent: water
The preparation method of the lithium ion battery anode glue size the following steps are included:
(1) after taking 96kg LiMn2O4,0.5kg carbon nanotube and 1kg graphite KS6 to be added in agitator tank, with 1800r/min
Stirring rate stir dry-mixed 45min.
(2) be added 100kg water and 2.5kg carbomer 934 to it is above-mentioned it is dry-mixed after mixture in, with stirring for 1800r/min
Mix rate stirring 2.5h.
(3) by slurry collection obtained above into collecting tank.
Comparative example 1
A kind of lithium ion battery anode glue size includes following raw material:
Binder: Kynoar
Conductive agent: carbon nanotube, graphite KS6
Positive electrode active materials: nickle cobalt lithium manganate
Solvent: N-Methyl pyrrolidone
The preparation method of the lithium ion battery anode glue size the following steps are included:
(1) 1kg Kynoar is taken to be added in 100kg N-Methyl pyrrolidone, with the stirring rate of 1500r/min
Stirring is until be completely dissolved.
(2) 96kg nickle cobalt lithium manganate, 1kg carbon nanotube and 2kg graphite KS6 is added into said mixture, with 1500r/
The stirring rate of min stirs 2h.
(3) by slurry collection obtained above into collecting tank.
The lithium ion battery anode glue size of above-described embodiment 1~5 and comparative example 1 is carried out shelving storage, observes fresh slurry
The stable case of material and storage 12h, slurry for 24 hours and after 48h, the results are shown in Table 1.
Table 1
Can be obtained by above-mentioned table 1, lithium ion battery anode glue size of the invention place for a long time it is not stratified and without precipitating, and
The lithium ion battery anode glue size of comparative example 1 then will appear layering and precipitating after placing a period of time, be unfavorable for the storage of slurry.
In conclusion lithium ion battery anode glue size of the invention is using acrylate copolymer or acrylate copolymer and its
For the mixture of its binder as binder, the lithium ion battery anode glue size made is able to maintain not stratified, nothing for a long time
Precipitating and stable viscosity, substantially increase the stability of lithium ion battery anode glue size.
The above is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, inventive formulation and preparation process can have various modifications and variations.All within the spirits and principles of the present invention, institute
Any modification, equivalent substitution, improvement and etc. of work, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of lithium ion battery anode glue size, it is characterised in that: including positive electrode active materials, conductive agent, binder and solvent；
The binder includes first binder, and the first binder is acrylate copolymer.
2. lithium ion battery anode glue size according to claim 1, it is characterised in that: the positive electrode active materials, conduction
Agent, binder quality account for respectively the positive electrode active materials, conductive agent and binder gross mass 70~98.9%, 0.5
~5% and 0.6~25%.
3. lithium ion battery anode glue size according to claim 1, it is characterised in that: the binder further includes second viscous
Agent is tied, second binder is butadiene-styrene rubber, carboxymethyl cellulose, Kynoar, polytetrafluoroethylene (PTFE), hydroxypropyl methyl fibre
It is polynary to tie up element, polyvinyl alcohol, polyacrylamide, perfluoro propyl perfluoroalkyl vinyl ether and the copolymer of polytetrafluoroethylene (PTFE), acrylonitrile
One of copolymer, sodium alginate and chitosan derivatives are a variety of.
4. lithium ion battery anode glue size according to claim 1, it is characterised in that: the acrylate copolymer is card wave
Nurse 934, Acritamer 940, Carbopol 941, Carbopol, Carbomer981, carbomer934, carbomer 1382, carbomer TR-
1, carbomer TR-2, carbomer ETD2001, carbomer ETD2020, carbomer ETD2050, carbomer ultrez10, carbomer
Ultrez20, carbomer ultrez21, carbomer Aqua CC, carbomer Aqua SF-1, carbomer L10, carbomer EC-2 and
One of carbomer EZ-4U or a variety of.
5. lithium ion battery anode glue size according to claim 1, it is characterised in that: the conductive agent be conductive black,
One of electrically conductive graphite, carbon fiber, carbon nanotube and graphene are a variety of.
6. lithium ion battery anode glue size according to claim 1, it is characterised in that: the positive electrode active materials are cobalt acid
In lithium, LiMn2O4, lithium nickelate, LiFePO4, phosphoric acid vanadium lithium, lithium manganese phosphate, nickel cobalt manganese oxidate for lithium and nickel cobalt aluminium oxidate for lithium
It is one or more.
7. lithium ion battery anode glue size according to claim 1, it is characterised in that: the solvent is water.
8. lithium ion battery anode glue size according to claim 1, it is characterised in that: the quality of the solvent account for it is described just
The 20~50% of the gross mass of pole slurry.
9. a kind of preparation method of lithium ion battery anode glue size, it is characterised in that: the lithium ion battery anode glue size is power
Benefit require any one of 1~8 described in lithium ion battery anode glue size, the preparation method includes: by positive electrode active materials, leads
Electric agent, binder and solvent are uniformly mixed.
10. the preparation method of lithium ion battery anode glue size according to claim 9, it is characterised in that: the preparation side
Method includes:
First positive electrode active materials and conductive agent are stirred, add solvent and binder, are uniformly mixed.
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| CN201711392605.XA CN109659508A (en) | 2017-12-21 | 2017-12-21 | A kind of lithium ion battery anode glue size and preparation method thereof |
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| CN201711392605.XA CN109659508A (en) | 2017-12-21 | 2017-12-21 | A kind of lithium ion battery anode glue size and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133910A (en) * | 2020-09-27 | 2020-12-25 | 江西安驰新能源科技有限公司 | Positive electrode slurry of water-based lithium iron phosphate battery and preparation method thereof |
| CN113372482A (en) * | 2021-08-16 | 2021-09-10 | 江苏卓高新材料科技有限公司 | Acrylic acid multipolymer, preparation method thereof and application thereof in positive pole piece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113372482A (en) * | 2021-08-16 | 2021-09-10 | 江苏卓高新材料科技有限公司 | Acrylic acid multipolymer, preparation method thereof and application thereof in positive pole piece |
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Application publication date: 20190419 |