CN106602071A - Positive electrode slurry for sodium ion battery and preparation method for positive electrode slurry - Google Patents
Positive electrode slurry for sodium ion battery and preparation method for positive electrode slurry Download PDFInfo
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- CN106602071A CN106602071A CN201611130393.3A CN201611130393A CN106602071A CN 106602071 A CN106602071 A CN 106602071A CN 201611130393 A CN201611130393 A CN 201611130393A CN 106602071 A CN106602071 A CN 106602071A
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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
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
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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
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
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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
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Abstract
The invention provides positive electrode slurry for a sodium ion battery and a preparation method for the positive electrode slurry, and applicable to slurry preparation for the positive electrode material of the sodium ion battery with a high pH value. The slurry provided by the invention comprises a positive electrode active material, a conductive agent, a binder, a regulator and a solvent; and the regulator comprises four kinds of organic compounds, including organic acid, acid anhydride, carboxylic ester and cyclohexanone. By virtue of the added regulator, an obvious suppression effect is achieved on slurry gelatinization, so that the slurry is high in mobility and stability; and therefore, the coating effect is improved, the surface density uniformity of an electrode plate is improved, the consistency of the electrode plates is improved, and the consistency of the battery is obviously enhanced. The preparation method for the slurry provided by the invention comprises the five steps of preparing materials, preparing adhesive, preparing slurry, de-foaming and sieving, wherein the regulator is added in the slurry preparing step. According to the preparation method for the slurry provided by the invention, the optimal effect of the regulator can be played.
Description
Technical field：
The invention belongs to sodium-ion battery field, more particularly to a kind of sodium-ion battery anode sizing agent and its preparation side
Method.
Background technology：
Sodium-ion battery has the charge-discharge principle similar with lithium ion battery.For comparing lithium, sodium resource is enriched very much
And it is cheap, therefore develop sodium-ion battery technology for reduction battery cost has very important significance.
Sodium-ion battery positive active material huge number, wherein O3 facies patterns layered oxide are considered as sodium-ion battery
Most potential positive electrode.
However, most of O3 phases layered oxide is to the CO in air2And H2O is very sensitive, material make after with
Air contact, can generate NaOH and Na in particle surface2CO3, while material internal has the Na of a small amount of remnants2CO3, cause material
Material pH value is very high, easily moisture absorption.And it is mixed after slurry with conductive agent, binding agent, solvent, slurry has mobility
Difference, it is easy to the problems such as gelation occurs.Application difficulties are in turn resulted in, pole piece surface density is uneven, and battery consistency is poor.
The content of the invention：
It is an object of the invention to：Sodium-ion battery anode sizing agent poor fluidity, easy gelation are solved, to improve coating effect
Really, pole piece surface density uniformity is improved, and a kind of sodium-ion battery anode sizing agent and preparation method thereof is provided.
In order to reach object above, the technical solution used in the present invention is：
A kind of sodium-ion battery anode sizing agent, includes positive active material (1), conductive agent (2), binding agent (3), regulation
Agent (4) and solvent (5), totally 5 kinds of compositions, is characterized in that：
A. the conditioning agent (4) is including 4 kinds of organic compounds：Organic acid (41), acid anhydrides (42), carboxylate (43), and
Cyclohexanone (44), wherein：
Organic acid (41) is ethanedioic acid (411), malonic acid (412), succinic acid (413), maleic acid (414), anti-fourth
Enedioic acid (415)；
Acid anhydrides (42) is succinic anhydride (421), maleic anhydride (422)；
Carboxylate (43) is propylene diethyl phthalate (431)；
Cyclohexanone (44) is cyclohexanone；
The conditioning agent (4) is a kind in above-mentioned 4 kinds of organic compounds, or 2 kinds, or 3 kinds are mixed, to suppress
Pulp gel；
B. 5 kinds of component ratios of the anode sizing agent are as follows：
On the basis of the weight of the positive active material (1)；
The weight ratio of the conductive agent (2) is 0.1%～10%；
The weight ratio of the binding agent (3) is 0.1%～10%；
The weight ratio of the conditioning agent (4) is 0.01%～10%；
The weight ratio of the solvent (5) is 70%～100%.
The positive active material (1) is O3-Naa[CuxFeyMnzM1-x-y-z]O2Compound, wherein：M is boron (B), magnesium
(Mg), aluminium (Al), silicon (Si), titanium (Ti), chromium (Cr), zinc (Zn), molybdenum (Mo), silver-colored (Ag), barium (Ba), tungsten (W), tin (Sn), lead
(Pb) a kind of element and in antimony (Sb)；And a, x, y, z are respectively 0.6≤a≤1.0,0≤x≤0.8,0≤y≤0.8,0≤z
≤ 0.8,0≤1-x-y-z≤0.8.
The conductive agent (2) is carbon black, a kind of material in acetylene black and electrically conductive graphite；The binding agent (3) is poly- inclined
A kind of material in PVF, polytetrafluoroethylene (PTFE) or butadiene-styrene rubber；The solvent (4) is 1-METHYLPYRROLIDONE, N, N- diformazans
Base formamide, N, a kind of material in N- DEFs, dimethyl sulfoxide, tetrahydrofuran.
A kind of preparation method of sodium-ion battery anode sizing agent, including S1, S2, S3, S4, S5 totally 5 steps, wherein：
Step S1 is to get the raw materials ready, to determine the share for preparing dispensing needed for the slurry；
Step S2 is glue, and the ready binding agent of step S1 and solvent are placed in mixer, revolving round the sun 10～
100 revs/min, 500～7000 revs/min of rotation stirring 30 minutes～12 hours, are obtained glue；
Step S3 is slurrying, and the conductive agent for first preparing step S1 is added in glue prepared by step S2, to revolve round the sun
10～100 revs/min, 500～7000 revs/min of rotation stirring 30 minutes～6 hours；Then the conditioning agent for step S1 being prepared
Dissolved with solvent, add above-mentioned glue, continue to stir 10 minutes～6 hours；The positive active material of step S1 preparation is added,
Continue to stir 30 minutes～12 hours, slurry is obtained；
Step S4 is deaeration, and slurry obtained in step S3 is placed in into the ring that vacuum is -0.085MPa～-0.1MPa
10 minutes～6 hours in border；
The slurry processed through step S4 is crossed 50～500 mesh sieves by step S5 to sieve, and required sodium ion is obtained
Battery anode slurry.
The sodium-ion battery anode sizing agent that the present invention is provided substantially presses down due to adding conditioning agent for pulp gel has
Make and use, slurry fluidity is good, stability is strong, so as to improve Painting effect, improve pole piece surface density uniformity, improve pole piece
Uniformity, and make battery with two side terminals be significantly improved.The present invention provide slurry preparation method include get the raw materials ready, glue, system
Slurry, deaeration, five steps of sieving, wherein, conditioning agent is added in pulping stage.According to the slurry preparation method that the present invention is provided,
Conditioning agent can play optimum efficiency.
Description of the drawings：
Fig. 1 is the process chart of the present invention；
Fig. 2 is the cycle performance test curve of embodiment 1 (battery A1).
Specific embodiment：
Fig. 1 and Fig. 2 is referred to, is the specific embodiment of the invention.
A kind of sodium-ion battery anode sizing agent, includes positive active material (1), conductive agent (2), binding agent (3), regulation
Agent (4) and solvent (5), totally 5 kinds of compositions, is characterized in that：
A. the conditioning agent (4) is including 4 kinds of organic compounds：Organic acid (41), acid anhydrides (42), carboxylate (43), and
Cyclohexanone (44), wherein：
Organic acid (41) is ethanedioic acid (411), malonic acid (412), succinic acid (413), maleic acid (414), anti-fourth
Enedioic acid (415)；
Acid anhydrides (42) is succinic anhydride (421), maleic anhydride (422)；
Carboxylate (43) is propylene diethyl phthalate (431)；
Cyclohexanone (44) is cyclohexanone；
The conditioning agent (4) is a kind in above-mentioned 4 kinds of organic compounds, or 2 kinds, or 3 kinds are mixed, to suppress
Pulp gel；
B. 5 kinds of component ratios of the anode sizing agent are as follows：
On the basis of the weight of the positive active material (1)；
The weight ratio of the conductive agent (2) is 0.1%～10%；
The weight ratio of the binding agent (3) is 0.1%～10%；
The weight ratio of the conditioning agent (4) is 0.01%～10%；
The weight ratio of the solvent (5) is 70%～100%.
The positive active material (1) is O3-Naa[CuxFeyMnzM1-x-y-z]O2Compound, wherein：M is boron (B), magnesium
(Mg), aluminium (Al), silicon (Si), titanium (Ti), chromium (Cr), zinc (Zn), molybdenum (Mo), silver-colored (Ag), barium (Ba), tungsten (W), tin (Sn), lead
(Pb) a kind of element and in antimony (Sb)；And a, x, y, z are respectively 0.6≤a≤1.0,0≤x≤0.8,0≤y≤0.8,0≤z
≤ 0.8,0≤1-x-y-z≤0.8.
The conductive agent (2) is carbon black, a kind of material in acetylene black and electrically conductive graphite；The binding agent (3) is poly- inclined
A kind of material in PVF, polytetrafluoroethylene (PTFE) or butadiene-styrene rubber；The solvent (4) is 1-METHYLPYRROLIDONE, N, N- diformazans
Base formamide, N, a kind of material in N- DEFs, dimethyl sulfoxide, tetrahydrofuran.
The preparation method of sodium-ion battery anode sizing agent of the present invention includes S1, S2, S3, S4, S5 totally 5 steps,
Wherein：
Step S1 is to get the raw materials ready, to determine the share for preparing dispensing needed for the slurry；
Step S2 is glue, and the ready binding agent of step S1 and solvent are placed in mixer, revolving round the sun 10～
100 revs/min, 500～7000 revs/min of rotation stirring 30 minutes～12 hours, are obtained glue；
Step S3 is slurrying, and the conductive agent for first preparing step S1 is added in glue prepared by step S2, to revolve round the sun
10～100 revs/min, 500～7000 revs/min of rotation stirring 30 minutes～6 hours；Then the conditioning agent for step S1 being prepared
Dissolved with solvent, add above-mentioned glue, continue to stir 10 minutes～6 hours；The positive active material of step S1 preparation is added,
Continue to stir 30 minutes～12 hours, slurry is obtained；
Step S4 is deaeration, and slurry obtained in step S3 is placed in into the ring that vacuum is -0.085MPa～-0.1MPa
10 minutes～6 hours in border；
The slurry processed through step S4 is crossed 50～500 mesh sieves by step S5 to sieve, and required sodium ion is obtained
Battery anode slurry.
Sodium-ion battery anode preparation method is that the anode sizing agent for providing the present invention is coated on a current collector, drying,
Roll pressing is obtained, and its preparation method and condition are known to those skilled in the art.
Sodium-ion battery negative pole preparation method is known to those skilled in the art.In general, negative pole includes collector
And coating and/or the negative material that is filled on collector, the negative material includes negative electrode active material and negative electrode binder
And the selective conductive agent for containing.The negative electrode active material is not particularly limited, it is possible to use this area it is conventional can be embedding
Enter to disengage the negative electrode active material of sodium ion, such as material with carbon element.The preparation method of negative pole is similar with the preparation method of positive pole, here
No longer describe in detail.
Membrane layer can be selected from the various membrane layers well known to a person skilled in the art used in sodium-ion battery, for example, gather
Alkene micro-porous film (PP), polyethylene felt (PE), glass mat or PP/PE composite membranes.
Electrolyte is the mixed solution of electrolyte sodium salt and nonaqueous solvents, it is not particularly limited, it is possible to use ability
The conventional nonaqueous electrolytic solution in domain.Such as electrolyte sodium salt is selected from sodium hexafluoro phosphate (NaPF6), sodium perchlorate, sodium tetrafluoroborate, six
One or more in fluorine natrium arsenicum, Sodium Tetrachloroaluminate.Organic solvent is from chain acid esters and ring-type acid esters mixed solution, wherein chain
Shape acid esters can for dimethyl carbonate (DMC), diethyl carbonate (DEC), methyl ethyl carbonate (EMC), methyl propyl carbonate (MPC),
Dipropyl carbonate (DPC) and other fluorine-containing, sulfur-bearings or at least one in the chain organosilane ester containing unsaturated bond, ring-type acid
Ester can be for ethylene carbonate (EC), propene carbonate (PC), vinylene carbonate (VC), sultone and other are fluorine-containing, contain
At least one in sulphur or the ring-type organosilane ester containing unsaturated bond.The concentration of electrolyte be generally 0.1～2.0 rub/liter.
The preparation method of sodium-ion battery can be with method well known for the person skilled in the art, in general, the party
Method includes stacking gradually and forming electrode group positive pole, negative pole and the barrier film between positive pole and negative pole, and electrode group is inserted into electricity
In the shell of pond, electrolyte is added, then sealed.Wherein, lamination and the method for sealing are well known to those skilled in the art.The use of electrolyte
Measure as conventional amount used.
The present invention is further described with reference to specific embodiment.
Embodiment 1
(1) preparation of positive pole
The solvent N-methyl pyrilidone (NMP) of 100 weight portions, 3 parts by weight binder is added to gather inclined fluorine in agitator
Ethene (PVDF) powder, with 30 revs/min, 3000 revs/min of the rotation stirring 2 hours of revolving round the sun；Add 4 weight portion conductive agent second
The conditioning agent ethanedioic acid of acetylene black and 0.2 weight portion, stirs 1 hour；It is subsequently adding 100 weight portion positive active material O3-Na0.9
[Cu1/3Fe1/3Mn1/3]O2Stirring 2 hours, through deaeration, crosses 200 mesh sieves, makes required sodium-ion battery anode sizing agent, compiles
Number a1.
The anode sizing agent of above-mentioned resulting sodium-ion battery is coated uniformly on into 20 microns thick aluminium by the way of slurry
On paper tinsel, drying, compressing tablet, the positive plate for being cut into 44 × 28 millimeters, every positive plate contains respectively 0.41 gram of active material.
(2) preparation of negative pole
By 100 weight portion negative electrode active material soft carbons, 3 parts by weight of binder butadiene-styrene rubber (SBR), 3 weight portion carboxymethyls
Cellulose (CMC) is added in the water of 50 weight portions, and then stirring forms stable, uniform negative pole slurry in de-airing mixer
Material.The cathode size is uniformly coated on Copper Foil, Jing 120 DEG C of drying, rollings are cut into 45 × 29 millimeters of negative plate, often
Piece negative plate contains 0.24 gram of negative electrode active material.
(3) preparation of battery
Above-mentioned positive plate, the polypropylene diaphragm of 20 microns of thickness, negative plate are stacked gradually into into electrode group, loads battery case
In, electrolyte to be injected in battery case with the amount of 9g/Ah, flexible package sodium-ion battery, numbering A1 are made in sealing.Electrolyte contains
NaPF6And nonaqueous solvents, NaPF in electrolyte6Concentration be 1 mol/L, nonaqueous solvents is ethylene carbonate (EC) and carbonic acid two
Ethyl ester (DMC) weight ratio is 1:1 mixed solution.
Embodiment 2
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter the succinic acid of 0.6 weight portion.Prepared anode sizing agent a2 and battery A2.
Embodiment 3
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter the cyclohexanone of 1.0 weight portions.Prepared anode sizing agent a3 and battery A3.
Embodiment 4
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter the succinic anhydride of 1.5 weight portions.Prepared anode sizing agent a4 and battery A4.
Embodiment 5
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter the propylene diethyl phthalate of 2 weight portions.Prepared anode sizing agent a5 and battery A5.
Embodiment 6
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter the ethanedioic acid of 0.5 weight portion and the malonic acid of 0.5 weight portion.Prepared anode sizing agent a6 and battery A6.
Embodiment 7
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter succinic acid, the succinic anhydride of 0.4 weight portion of 0.6 weight portion.Prepared anode sizing agent a7 and battery A7.
Embodiment 8
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter the cyclohexanone of the maleic acid, the maleic anhydride of 0.4 weight portion and 0.2 weight portion of 0.4 weight portion.Prepared positive pole slurry
Material a8 and battery A8.
Embodiment 9
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, is except for the difference that added in anode sizing agent
Enter the maleic acid of the ethanedioic acid, the succinic acid of 0.3 weight portion and 0.3 weight portion of 0.4 weight portion.Prepared anode sizing agent a9 and
Battery A91～A96.
Comparative example 1
Positive pole, negative pole and battery are prepared using method and steps same as Example 1, except for the difference that in anode sizing agent not
Plus conditioning agent.Prepared anode sizing agent b1 and battery B11～B16.
Performance test：
(1) anode sizing agent stability test
Slurry a1～a9 and b1 is placed in into 25 DEG C, the room of humidity 20%～30% 24 hours, occur gelation when
Between as shown in table 1.
(2) discharge capacity test
Under the conditions of 25 DEG C, it is charged in constant-current charge mode, charging current is 0.1C (100mA), final voltage is
4.0 volt；Then discharged in constant-current discharge mode again, discharge current is 0.1C (100mA), and the blanking voltage of electric discharge is 1.5
Volt, obtains battery at room temperature, with the discharge capacity first of 0.1C current discharges to 1.5 volts.As a result it is as shown in table 2.
(3) cycle performance test
Under the conditions of 25 DEG C, battery is charged to into 4.0 volts with 0.1C electric currents respectively, then shelve 5 minutes；Battery is with 0.1C
Current discharge shelves 5 minutes to 1.5 volts.Repeat above step 100 times, obtain after 100 circulations of battery 0.1C current discharges extremely
1.5 volts of capacity, calculates capacity sustainment rate before and after circulation, as a result as shown in table 2 by following formula.
Capacity sustainment rate=(the 100th cyclic discharge capacity/first cyclic discharge capacity) × 100%
Knowable to data in table 1, the time that the slurry of the present invention occurs gel phenomenon is substantially delayed, and illustrates the present invention's
Slurry has obvious inhibiting effect for gelation, and slurry fluidity is good, and stability is strong, so as to improve Painting effect, improves pole piece
Surface density uniformity, improves the uniformity of pole piece.
Understand from the data of example 9 in table 2 and comparative example 1, using the battery discharge capacity first of slurry of the present invention preparation
Uniformity, cycle performance uniformity are significantly improved.
In sum, the present invention solves sodium-ion battery anode sizing agent poor fluidity, the problem that gelation easily occurs, and enters
And improve Painting effect, and pole piece surface density uniformity is improved, improve battery consistency.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the specific embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
The anode sizing agent stability test of table 1
| Example number | Slurry is numbered | Generation gelation time |
| Example 1 | a1 | 2h |
| Example 2 | a2 | 6h |
| Example 3 | a3 | >24h |
| Example 4 | a4 | >24h |
| Example 5 | a5 | >24h |
| Example 6 | a6 | >24h |
| Example 7 | a7 | >24h |
| Example 8 | a8 | >24h |
| Example 9 | a9 | >24h |
| Comparative example 1 | b1 | 0.5h |
The electric performance test of table 2
Claims (4)
1. a kind of sodium-ion battery anode sizing agent, includes positive active material (1), conductive agent (2), binding agent (3), conditioning agent
(4) and solvent (5), totally 5 kinds of compositions, is characterized in that：
A. the conditioning agent (4) is including 4 kinds of organic compounds：Organic acid (41), acid anhydrides (42), carboxylate (43), and hexamethylene
Ketone (44), wherein：
Organic acid (41) is ethanedioic acid (411), malonic acid (412), succinic acid (413), maleic acid (414), anti-butylene two
Sour (415)；
Acid anhydrides (42) is succinic anhydride (421), maleic anhydride (422)；
Carboxylate (43) is propylene diethyl phthalate (431)；
Cyclohexanone (44) is cyclohexanone；
The conditioning agent (4) is a kind in above-mentioned 4 kinds of organic compounds, or 2 kinds, or 3 kinds are mixed, to suppress slurry
Gelation；
B. 5 kinds of component ratios of the anode sizing agent are as follows：
On the basis of the weight of the positive active material (1)；
The weight ratio of the conductive agent (2) is 0.1%～10%；
The weight ratio of the binding agent (3) is 0.1%～10%；
The weight ratio of the conditioning agent (4) is 0.01%～10%；
The weight ratio of the solvent (5) is 70%～100%.
2. sodium-ion battery anode sizing agent according to claim 1, it is characterised in that：
The positive active material (1) is O3-Naa[CuxFeyMnzM1-x-y-z]O2Compound, wherein：M be boron (B), magnesium (Mg),
Aluminium (Al), silicon (Si), titanium (Ti), chromium (Cr), zinc (Zn), molybdenum (Mo), silver-colored (Ag), barium (Ba), tungsten (W), tin (Sn), lead (Pb) and
A kind of element in antimony (Sb)；And a, x, y, z are respectively 0.6≤a≤1.0,0≤x≤0.8,0≤y≤0.8,0≤z≤0.8,0
≤1-x-y-z≤0.8。
3. sodium-ion battery anode sizing agent according to claim 1, it is characterised in that：
The conductive agent (2) is carbon black, a kind of material in acetylene black and electrically conductive graphite；The binding agent (3) is polyvinylidene fluoride
A kind of material in alkene, polytetrafluoroethylene (PTFE) or butadiene-styrene rubber；The solvent (4) is 1-METHYLPYRROLIDONE, N, N- dimethyl methyls
Acid amides, N, a kind of material in N- DEFs, dimethyl sulfoxide, tetrahydrofuran.
4. a kind of preparation method of sodium-ion battery anode sizing agent, including getting the raw materials ready, glue, slurrying, deaeration, sieves, and is divided into
S1, S2, S3, S4, S5, totally 5 steps complete, it is characterized in that：
Step S1 is to get the raw materials ready, to determine the share for preparing dispensing needed for the slurry；
Step S2 is glue, and the ready binding agent of step S1 and solvent are placed in mixer, to revolve round the sun 10～100
Rev/min, 500～7000 revs/min of rotation stir 30 minutes～12 hours, glue is obtained；
Step S3 is slurrying, and the conductive agent for first preparing step S1 is added in glue prepared by step S2, revolving round the sun 10～
100 revs/min, 500～7000 revs/min of rotation stirring 30 minutes～6 hours；Then the conditioning agent for step S1 being prepared is with molten
Agent is dissolved, and adds above-mentioned glue, continues to stir 10 minutes～6 hours；The positive active material of step S1 preparation is added, is continued
Stirring 30 minutes～12 hours, is obtained slurry；
Step S4 is deaeration, and slurry obtained in step S3 is placed in the environment that vacuum is -0.085MPa～-0.1MPa
10 minutes～6 hours；
The slurry processed through step S4 is crossed 50～500 mesh sieves by step S5 to sieve, and required sodium-ion battery is obtained
Anode sizing agent.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170957A (en) * | 2017-06-13 | 2017-09-15 | 中国电子新能源（武汉）研究院有限责任公司 | Sodium-ion battery cathode size, preparation method and cathode pole piece |
| CN107256969A (en) * | 2017-06-13 | 2017-10-17 | 中国电子新能源（武汉）研究院有限责任公司 | Sodium-ion battery cathode size and preparation method thereof |
| CN114497521A (en) * | 2021-12-27 | 2022-05-13 | 天津中电新能源研究院有限公司 | Sodium ion battery positive electrode slurry and preparation method thereof |
| CN115084522A (en) * | 2022-06-20 | 2022-09-20 | 芜湖天弋能源科技有限公司 | Additive for positive electrode slurry of sodium-ion battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107308A (en) * | 2011-11-14 | 2013-05-15 | 珠海银通新能源有限公司 | Cathode sheet and lithium ion power battery and preparation method thereof |
| CN106104872A (en) * | 2014-03-31 | 2016-11-09 | 住友化学株式会社 | Sodium rechargeable battery electrode closes material slurry, sodium rechargeable battery positive pole and sodium rechargeable battery |
-
2016
- 2016-12-09 CN CN201611130393.3A patent/CN106602071B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107308A (en) * | 2011-11-14 | 2013-05-15 | 珠海银通新能源有限公司 | Cathode sheet and lithium ion power battery and preparation method thereof |
| CN106104872A (en) * | 2014-03-31 | 2016-11-09 | 住友化学株式会社 | Sodium rechargeable battery electrode closes material slurry, sodium rechargeable battery positive pole and sodium rechargeable battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170957A (en) * | 2017-06-13 | 2017-09-15 | 中国电子新能源（武汉）研究院有限责任公司 | Sodium-ion battery cathode size, preparation method and cathode pole piece |
| CN107256969A (en) * | 2017-06-13 | 2017-10-17 | 中国电子新能源（武汉）研究院有限责任公司 | Sodium-ion battery cathode size and preparation method thereof |
| CN114497521A (en) * | 2021-12-27 | 2022-05-13 | 天津中电新能源研究院有限公司 | Sodium ion battery positive electrode slurry and preparation method thereof |
| CN115084522A (en) * | 2022-06-20 | 2022-09-20 | 芜湖天弋能源科技有限公司 | Additive for positive electrode slurry of sodium-ion battery |
| CN115084522B (en) * | 2022-06-20 | 2023-05-23 | 芜湖天弋能源科技有限公司 | Positive electrode slurry additive for sodium ion battery |
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| CN106602071B (en) | 2020-05-05 |
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