CN109755634A - A kind of preparation method, battery core and the lithium ion battery of anodic aluminium oxide membrane type lithium ion battery - Google Patents
A kind of preparation method, battery core and the lithium ion battery of anodic aluminium oxide membrane type lithium ion battery Download PDFInfo
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- CN109755634A CN109755634A CN201811542217.XA CN201811542217A CN109755634A CN 109755634 A CN109755634 A CN 109755634A CN 201811542217 A CN201811542217 A CN 201811542217A CN 109755634 A CN109755634 A CN 109755634A
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- lithium ion
- aluminium oxide
- ion battery
- oxide membrane
- anodic aluminium
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 253
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 65
- 239000012528 membrane Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- 239000003792 electrolyte Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000005538 encapsulation Methods 0.000 claims abstract description 4
- 230000010412 perfusion Effects 0.000 claims abstract description 4
- 238000004090 dissolution Methods 0.000 claims abstract description 3
- 239000000725 suspension Substances 0.000 claims description 30
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 10
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 9
- 229920002125 Sokalan® Polymers 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000004642 Polyimide Substances 0.000 claims description 6
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000006255 coating slurry Substances 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000004584 polyacrylic acid Substances 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 239000004697 Polyetherimide Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229920001601 polyetherimide Polymers 0.000 claims description 5
- 239000003232 water-soluble binding agent Substances 0.000 claims description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 229920001732 Lignosulfonate Polymers 0.000 claims description 3
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- CBFCDTFDPHXCNY-UHFFFAOYSA-N octyldodecane Natural products CCCCCCCCCCCCCCCCCCCC CBFCDTFDPHXCNY-UHFFFAOYSA-N 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 239000002552 dosage form Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 7
- 239000002002 slurry Substances 0.000 abstract description 7
- 230000002000 scavenging effect Effects 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000004132 cross linking Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 229910001290 LiPF6 Inorganic materials 0.000 description 4
- 229920000620 organic polymer Polymers 0.000 description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010907 mechanical stirring Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052594 sapphire Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- VOPQXYCIRQXBGE-UHFFFAOYSA-M dimethyl-bis(sulfanyl)azanium chloride Chemical compound [Cl-].S[N+](C)(C)S VOPQXYCIRQXBGE-UHFFFAOYSA-M 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention provides preparation method, battery core and the lithium ion batteries of a kind of anodic aluminium oxide membrane type lithium ion battery, the following steps are included: choosing the alumina powder of different-grain diameter, slurry is formed after mixing after dissolution with binder and dispersant solution with certain mass ratio, according to preset coated conditions, slurry is coated on the two sides of battery pole piece, winding, cut-parts, obtain compound electric pole piece after the completion of coating, compound electric pole piece is assembled with positive/negative plate again, battery core is made；Fixed wrapping, encapsulation, perfusion electrolyte and chemical conversion are carried out to battery core, lithium ion battery is made.The present invention selects alumina ceramic powder to prepare lithium ion battery, since alumina ceramic powder has scavenging effect to HF, electrode under high temperature can be prevented to be destroyed, reduce capacity attenuation, to be conducive to improve the high temperature resistance of lithium ion battery.
Description
Technical field
The present invention relates to technical field of lithium ion, in particular to a kind of anodic aluminium oxide membrane type lithium ion battery
Preparation method, battery core and lithium ion battery.
Background technique
Degree with modern life informationization constantly increases, the portable electrics such as laptop, mobile phone, video camera
Sub- equipment using more and more.Lithium ion secondary battery with the advantages such as its high-energy density, memory-less effect, environmental-friendly
Also there is huge application potential through being widely applied in portable electronic product field, and in electric car field.So
And so far, chemical property, high rate performance, cycle life, the security performance of lithium ion battery under high/low temperature etc. is still
It is insufficient for the requirement of power battery development, battery capacity is fast at higher temperature (60 DEG C) and lower temperature (- 20 DEG C)
Speed decaying, battery life are obviously shortened.
The main reason for leading to performance rapid decrease under high-temperature lithium ion battery, is from electrode material itself and electrolyte
System, especially with LiPF6It is easy to happen side reaction under the high temperature conditions for the electrolyte system of lithium salts.LiPF6Facile hydrolysis produces
Raw LiF, LiF not only consume lithium ion, cause the decaying of battery capacity, and the LiF generated is electronics and lithium ion
Insulator increases the overall impedance of battery.LiPF6Decomposition product PF5It is easy to cause carbonate based organic solvent oxidation point
Solution, accelerates the decaying of battery life.Thus, LiPF6Use many detrimental effects will be brought to the high-temperature stability of battery.
Summary of the invention
In consideration of it, the invention proposes preparation method, battery core and the lithium-ion electrics of a kind of anodic aluminium oxide membrane type lithium ion battery
Pond, it is intended to which solving the problems, such as existing lithium ion battery, capacity attenuation is serious at high temperature.
First aspect present invention proposes a kind of preparation method of anodic aluminium oxide membrane type lithium ion battery, comprising the following steps: step
(1), the aluminium oxide for weighing (1000-1200) parts by weight different-grain diameter is put into solvent, is opened agitating device, is made it dissolve, and is made
Obtain suspension；Step (2) takes (100-120) parts by weight water-soluble binder and (30-40) parts per weight dispersing agent to be added above-mentioned outstanding
In turbid, stirring obtains uniform and stable alumina coated suspension；Step (3), by the alumina coated suspension with pre-
If thickness is coated on coiled battery pole piece surface, and the battery pole piece is placed under conditions of (50-60) DEG C dry after receive
Volume, cut-parts, can be obtained electrode-supported anodic aluminium oxide membrane compound electric pole piece；Step (4), by electricity obtained in the step (3)
Pole support type anodic aluminium oxide membrane compound electric pole piece and corresponding positive plate or negative electrode tab progress is parallel assembles, are made battery core；Step
(5), fixed wrapping, encapsulation, perfusion electrolyte and chemical conversion are carried out to the battery core and lithium ion battery is made.
Further, in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, the partial size be 80 μm, 2 μm,
The mass ratio of the alumina particle of 600nm is (600 ~ 700): (100 ~ 300): (100 ~ 200)；The partial size is 3 μm, 200nm
Alumina particle mass ratio be (800 ~ 900): (100 ~ 300).
Further, in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, the binder includes polyvinyl alcohol
With the group of the composition of polyetherimide, the composition of polyacrylic acid and sodium carboxymethylcellulose, polyvinyl alcohol and polyacrylic acid
Close object or polyimide acid.
Further, in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, what the adhesive composition was formed
The mass concentration of glue is (10-50) %.
Further, in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, with the glue of polyimide acid configuration
Mass concentration be (0.1-10) %.
Further, in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, the dispersing agent is carboxymethyl cellulose
In plain sodium, lauryl sodium sulfate, lignosulfonates, cetyl trimethylammonium bromide and dimercaptodimethyl ammonium chloride
It is at least one.
Further, in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, divide in the aqueous solution of the dispersing agent
The mass concentration of powder is (1-3) %.
Further, it in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, is also wrapped before the step (3)
It includes: film forming hot test is carried out to described adhesive, the coating slurry prepared in the step (2) is coated on above foil,
And place it under conditions of (400-800) DEG C and toasted to prepare anodic aluminium oxide membrane, be then cooled to room temperature, take out it is inorganic every
Film observes the thermal contraction variation of anodic aluminium oxide membrane；If volume selects the step without any contraction distortion after diaphragm heating
(2) coating slurry prepared in carries out the operation of step (3).
Further, in the preparation method of above-mentioned anodic aluminium oxide membrane type lithium ion battery, in the step (3), the oxidation
Aluminium coats in the coating procedure of suspension, ambient humidity 40%-70%.
The preparation method of anodic aluminium oxide membrane type lithium ion battery provided by the invention, select alumina ceramic powder prepare lithium from
Sub- battery can prevent electrode under high temperature to be destroyed since alumina ceramic powder has scavenging effect to HF, reduce capacity and decline
Subtract, to be conducive to improve the high temperature resistance of lithium ion battery；By the way that cross-linked three D network binder is used for ceramic diaphragm
Preparation process in, baked test is carried out to the binder of crosslinking under 400 DEG C or more of hot environment, to determine the machine of diaphragm
Tool performance is unaffected, then the binder of the crosslinking is selected to prepare anodic aluminium oxide membrane again；Utilize the anodic aluminium oxide membrane and electrode slice shape
Have preferable high temperature resistance at the lithium ion battery being prepared again after combination electrode, preferable electricity can be kept at high temperature
Chemical property；Battery diaphragm made of applying after mixing with a small amount of organic polymer has very big safety excellent than organic barrier film
Gesture.
Second aspect of the present invention provides a kind of battery core, comprising: electrode-supported anodic aluminium oxide membrane compound electric pole piece and and its
Positive plate disposed in parallel or negative electrode tab；Wherein, the electrode-supported anodic aluminium oxide membrane compound electric pole piece by different-grain diameter oxygen
Change the alumina coated suspension that aluminium and a certain proportion of water-soluble binder are formed and coiled battery is coated on preset thickness
Pole piece and formed.Due to having used electrode-supported anodic aluminium oxide membrane compound electric pole piece, which has preferable resistance to
High-temperature behavior can keep preferable chemical property at high temperature.
Third aspect present invention provides a kind of lithium ion battery, including above-mentioned battery core.
Since battery core has above-mentioned technique effect, so also there is the lithium ion battery with the battery core corresponding technology to imitate
Fruit.
Detailed description of the invention
Fig. 1 is the preparation method flow chart of anodic aluminium oxide membrane type lithium ion battery in the embodiment of the present invention；
Fig. 2 is the anodic aluminium oxide membrane type lithium ion battery prepared in the embodiment of the present invention and is prepared using organic polymer PP diaphragm
The comparison diagram of the capacity retention ratio of lithium ion battery.
Specific embodiment
The following is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvement and modification are also considered as
Protection scope of the present invention.
Referring to Fig. 1, the invention proposes a kind of preparation methods of anodic aluminium oxide membrane type lithium ion battery, comprising the following steps:
Step S1, the aluminium oxide for weighing (1000-1200) parts by weight different-grain diameter are put into solvent, are opened agitating device, are made it
Suspension is made in dissolution.
Specifically, can screen the particulate matter of same particle size distribution when weighing aluminium oxide, different-grain diameter can also be screened
The particulate matter of distribution.When selecting different particle diameter distributions, it is preferred that the partial size is 80 μm, 2 μm, the aluminium oxide of 600nm
The mass ratio of particle is (600 ~ 700): (100 ~ 300): (100 ~ 200)；The partial size is the alumina particle of 3 μm, 200nm
Mass ratio be (800 ~ 900): (100 ~ 300).
Step S2 takes (100-120) parts by weight water-soluble binder and (30-40) parts per weight dispersing agent to be added above-mentioned suspended
In liquid, stirring obtains uniform and stable alumina coated suspension.
Specifically, the binder includes the composition, polyacrylic acid and carboxymethyl of polyvinyl alcohol and polyetherimide
The composition or polyimide acid of the composition of sodium cellulosate, polyvinyl alcohol and polyacrylic acid.Wherein, adhesive composition is formed
Glue mass concentration be (10-50) %；The mass concentration of the glue configured with polyimide acid is (0.1-10) %.Dispersing agent
For sodium carboxymethylcellulose, lauryl sodium sulfate, lignosulfonates, cetyl trimethylammonium bromide and didecyl dimethyl
At least one of ammonium chloride.In the aqueous solution of dispersing agent the mass concentration of dispersing agent be (1-3) %, preferably 1.5%.It needs
Illustrate, in the present embodiment, the weight ratio of the aluminium oxide, binder and dispersing agent can be preferably 1000:120:30.
When it is implemented, suitable quantity of water can be added into slurry adjusts solid content value to (60-70) %, the time of stirring can
Think (2-6) h, can aluminium oxide be uniformly dispersed in binder solution by adequately stirring, be conducive to be made
The alumina coated suspension of high dispersive.
The alumina coated suspension is coated on coiled battery pole piece surface with preset thickness by step S3, and will
The battery pole piece is placed under conditions of (50-60) DEG C dry after winding, cut-parts, it is multiple that electrode-supported anodic aluminium oxide membrane can be obtained
Composite electrode piece.
When it is implemented, can be with the painting of the coating humidity of 40%-70%, the application temperature of (50-70) DEG C and (1-5) m/min
Speed is covered by alumina coated suspension coated on battery pole piece surface.Battery pole piece in the present embodiment, can be on the market
Any kind can be used for the positive plate and negative electrode tab of lithium ion battery, and it can also be organic system, this reality that pole piece, which can be water-based system,
It applies example and it is not limited in any way.
The time of battery pole piece drying after coating is preferably (8-12) h.Coating thickness can be 30-60 μm, preferably
40μm。
The process of coating, which can be such that, is fed to coating by unwinding device releasing for ready coating battery pole piece in advance
Machine sets coating thickness and baking oven baking temperature, alumina coated suspension is poured into coating machine trough, apparatus for coating is pressed
Predetermined coating weight and space length segmentation according to coating pole piece carry out dual coating, winding, cut-parts after the completion of coating, as a result,
To the anodic aluminium oxide membrane and corresponding electrode of electrode-supported.
In the present embodiment before carrying out step (3), can also carry out following steps: it is high to carry out film forming to the binder
The coating slurry prepared in the step (2) is coated on above foil by temperature test, and places it in the item of (400-800) DEG C
It is toasted under part to prepare anodic aluminium oxide membrane, is then cooled to room temperature, take out anodic aluminium oxide membrane, the thermal contraction for observing anodic aluminium oxide membrane becomes
Change；If volume selects the coating slurry prepared in step (2) to carry out step (3) without any contraction distortion after diaphragm heating
Operation.
It in the step, after hot test, can learn: using self-crosslinking and the binder of co-crosslinking, be after solidification
Thermosetting plastics, under hot environment use environment, binder microstructure itself does not generate variation, mechanical strength hardly by
It influences, under ultra-high temperature use environment, so that the mechanical structure of diaphragm does not deform, can reduce due to adhesive failure
And the probability for causing battery thermal runaway to occur.
Step (4), by electrode-supported anodic aluminium oxide membrane compound electric pole piece obtained in the step (3) and corresponding anode
Piece or negative electrode tab are assembled in parallel, and battery core is made；
Step (5) carries out fixed wrapping, encapsulation, perfusion electrolyte and chemical conversion to the battery core and lithium ion battery is made.
By obtaining above, the preparation method of the anodic aluminium oxide membrane type lithium ion battery in the embodiment of the present invention selects aluminium oxide
Ceramic powders prepare lithium ion battery, since alumina ceramic powder has scavenging effect to HF, can prevent electrode under high temperature
It is destroyed, reduces capacity attenuation, to be conducive to improve the high temperature resistance of lithium ion battery；By the way that cross-linked three D network is glued
Agent is tied for carrying out baking examination to the binder of crosslinking under 400 DEG C or more of hot environment in the preparation process of ceramic diaphragm
It tests, the mechanical performance to determine diaphragm is unaffected, then the binder of the crosslinking is selected to prepare anodic aluminium oxide membrane again；Utilize the nothing
Machine diaphragm and electrode slice form the lithium ion battery being prepared again after combination electrode and have preferable high temperature resistance, can be in height
Temperature is lower to keep preferable chemical property；Battery diaphragm made of applying after mixing with a small amount of organic polymer has than organic barrier film
There are very big security advantages.
Second aspect of the present invention provides a kind of battery core, comprising: electrode-supported anodic aluminium oxide membrane compound electric pole piece and and its
Positive plate disposed in parallel or negative electrode tab；Wherein, the electrode-supported anodic aluminium oxide membrane compound electric pole piece by different-grain diameter oxygen
Change the alumina coated suspension that aluminium and a certain proportion of water-soluble binder are formed and coiled battery is coated on preset thickness
Pole piece and formed.Due to having used electrode-supported anodic aluminium oxide membrane compound electric pole piece, which has preferable resistance to
High-temperature behavior can keep preferable chemical property at high temperature.
Third aspect present invention provides a kind of lithium ion battery, including above-mentioned battery core.
Since battery core has above-mentioned technique effect, so also there is the lithium ion battery with the battery core corresponding technology to imitate
Fruit.
It is carried out below by preparation method of several specific embodiments to anodic aluminium oxide membrane type lithium ion battery of the invention
Explanation.Embodiment 1
Choose the ceramic powder α-Al of 1kg2O3, 3 μm of partial size mixed according to the ratio of 850g:150g respectively with the ceramic powder of 200nm
It closes；
It takes appropriate polyvinyl alcohol (PVA) soluble in water according to the mass ratio of 2:1 with polyacrylic acid (PAA), is configured to 120g mass
The glue that concentration is 10%；Soluble in water be sufficiently stirred of appropriate sodium carboxymethylcellulose (CMC) is taken to be configured to 34g concentration as 2%
Aqueous solution；By ceramic powder Al2O3After being mixed with above-mentioned binder with dispersant solution, adds 333g water consolidating for slurry of adjustment and contain
Magnitude after mechanical stirring 2h, obtains uniform and stable high dispersive alumina coated suspension to 60%；
High dispersive alumina coated suspension is poured into trough of coating machine, the temperature that coating machine is arranged is 60 DEG C, walking speed 2m/
Min, coating thickness be 40 μm, by alumina coated suspension be coated on coiled ternary electrode on piece, and by battery pole piece in
Under 60 DEG C and 50% humidity after dry 8h, electrode-supported anodic aluminium oxide membrane is can be obtained in winding, cut-parts；
Be coated with anodic aluminium oxide membrane ternary electrode piece it is parallel with the progress of cathode graphite pole piece assemble, be made lithium ion battery；
Electrolyte obtained is injected in battery, shelves for 24 hours, then carries out forming and capacity dividing.
Embodiment 2
Choose the ceramic powder α-Al of 1.2kg2O3, the ceramic powder of partial size 3 μm: 200m is respectively according to the ratio mixing of 900g:300g；
It takes appropriate polyvinyl alcohol (PVA) soluble in water according to the mass ratio of 1:1 with polyacrylic acid (PAA), is configured to 120g mass
The glue that concentration is 20%；Soluble in water be sufficiently stirred of appropriate sodium carboxymethylcellulose (CMC) is taken to be configured to 34g concentration as 3%
Aqueous solution；By ceramic powder α-Al2O3After mixing with above-mentioned binder with dispersant solution, consolidating for 450g water adjustment slurry is added
Content value after mechanical stirring 6h, obtains uniform and stable high dispersive alumina coated suspension to 70%；
High dispersive alumina coated suspension is poured into trough of coating machine, the temperature that coating machine is arranged is 70 DEG C, walking speed 1m/
Min, coating thickness be 20 μm, by alumina coated suspension be coated on coiled ternary electrode on piece, and by battery pole piece in
Under 60 DEG C and 70% humidity after dry 10h, electrode-supported anodic aluminium oxide membrane is can be obtained in winding, cut-parts；
Be coated with anodic aluminium oxide membrane ternary electrode piece it is parallel with the progress of cathode graphite pole piece assemble, be made lithium ion battery；
Electrolyte obtained is injected in battery, shelves for 24 hours, then carries out forming and capacity dividing.
Embodiment 3
Choose the ceramic powder α-Al of 1.1kg2O3, 80 μm of partial size, 2 μm, the ceramic powder of 600nm is respectively according to 600g:300g:
The ratio of 200g mixes；
It takes appropriate polyvinyl alcohol (PVA) and polyetherimide soluble in water according to the mass ratio of 1:1, is configured to 100g mass concentration
For 50% glue；Take appropriate dimercaptodimethyl ammonium chloride it is soluble in water be sufficiently stirred be configured to 40g concentration be 2% it is water-soluble
Liquid；By ceramic powder α-Al2O3After mixing with above-mentioned binder with dispersant solution, the solid content of 450g water adjustment slurry is added
Value after mechanical stirring 6h, obtains uniform and stable high dispersive alumina coated suspension to 70%；
High dispersive alumina coated suspension is poured into trough of coating machine, the temperature that coating machine is arranged is 60 DEG C, walking speed 5m/
Min, coating thickness be 60 μm, by alumina coated suspension be coated on coiled ternary electrode on piece, and by battery pole piece in
Under 50 DEG C and 50% humidity after dry 10h, electrode-supported anodic aluminium oxide membrane compound electric pole piece is can be obtained in winding, cut-parts；
Be coated with anodic aluminium oxide membrane ternary electrode piece it is parallel with the progress of cathode graphite pole piece assemble, be made lithium ion battery；
Electrolyte obtained is injected in battery, shelves for 24 hours, then carries out forming and capacity dividing.
Embodiment 4
Choose the ceramic powder α-Al of 1kg2O3, 3 μm of partial size, the ceramic powder of 200nm are mixed according to the ratio of 800g:200g respectively
It closes；
It takes appropriate polyetherimide amino acid soluble in water according to the mass ratio of 1:1, is configured to the glue that 110g mass concentration is 40%；
Soluble in water be sufficiently stirred of appropriate cetyl trimethylammonium bromide is taken to be configured to the aqueous solution that 34g concentration is 2.5%；It will be ceramic
Powder α-Al2O3After mixing with above-mentioned binder with dispersant solution, the solid content value of 300g water adjustment slurry is added to 70%, machine
After tool stirs 4h, uniform and stable high dispersive alumina coated suspension is obtained；
High dispersive alumina coated suspension is poured into trough of coating machine, the temperature that coating machine is arranged is 50 DEG C, walking speed 4m/
Min, coating thickness be 40 μm, by alumina coated suspension be coated on coiled ternary electrode on piece, and by battery pole piece in
Under 50 DEG C and 70% humidity after dry 10h, electrode-supported anodic aluminium oxide membrane is can be obtained in winding, cut-parts；
Be coated with anodic aluminium oxide membrane ternary electrode piece it is parallel with the progress of cathode graphite pole piece assemble, be made lithium ion battery；
Electrolyte obtained is injected in battery, shelves for 24 hours, then carries out forming and capacity dividing.
Comparative example
1) it is assembled by organic polymer PP diaphragm, by ternary electrode piece is parallel with the progress of cathode graphite pole piece, lithium-ion electric is made
Pond；
2) battery obtained is injected in battery, shelves for 24 hours, then carries out forming and capacity dividing.
Experimental example
By the battery after forming and capacity dividing in embodiment 1 and comparative example, it is respectively placed in -10 DEG C, 0 DEG C, 10 DEG C, 25 DEG C, 40 DEG C, 50
DEG C, in 60 DEG C of baking oven, carry out the electrochemistry cycle performance test under different temperatures, and record experimental result as shown in Fig. 2, can
To find out: its capacity plays and holds the lithium ion battery of preparation of the embodiment of the present invention under especially 60 DEG C of superhigh temperature at high temperature
Amount conservation rate is substantially better than traditional PP diaphragm cell.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (11)
1. a kind of preparation method of anodic aluminium oxide membrane type lithium ion battery, which comprises the following steps:
Step (1), the aluminium oxide for weighing (1000-1200) parts by weight different-grain diameter are put into solvent, are opened agitating device, are made it
Suspension is made in dissolution；
Step (2) takes (100-120) parts by weight water-soluble binder and (30-40) parts per weight dispersing agent that above-mentioned suspension is added
In, stirring obtains uniform and stable alumina coated suspension；
The alumina coated suspension is coated on coiled battery pole piece surface with preset thickness by step (3), and will be described
Battery pole piece is placed under conditions of (50-60) DEG C dry after winding, cut-parts, electrode-supported anodic aluminium oxide membrane compound electric can be obtained
Pole piece；
Step (4), by electrode-supported anodic aluminium oxide membrane compound electric pole piece obtained in the step (3) and corresponding positive plate or
Negative electrode tab is assembled in parallel, and battery core is made；
Step (5) carries out fixed wrapping, encapsulation, perfusion electrolyte and chemical conversion to the battery core and lithium ion battery is made.
2. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 1, which is characterized in that the partial size is
80 μm, 2 μm, the mass ratio of the alumina particle of 600nm be (600 ~ 700): (100 ~ 300): (100 ~ 200)；The partial size
Mass ratio for 3 μm, the alumina particle of 200nm is (800 ~ 900): (100 ~ 300).
3. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 1 or 2, which is characterized in that described viscous
Tying agent includes the composition of polyvinyl alcohol and polyetherimide, the composition of polyacrylic acid and sodium carboxymethylcellulose, polyethylene
The composition or polyimide acid of alcohol and polyacrylic acid.
4. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 3, which is characterized in that the binder
The mass concentration for the glue that composition is formed is (10-50) %.
5. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 3, which is characterized in that use polyimides
The mass concentration of the glue of acid configuration is (0.1-10) %.
6. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 1 or 2, which is characterized in that described point
Powder is sodium carboxymethylcellulose, lauryl sodium sulfate, lignosulfonates, cetyl trimethylammonium bromide and didecyl
At least one of alkyl dimethyl ammonium chloride.
7. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 1 or 2, which is characterized in that described point
The mass concentration of dispersing agent is (1-3) % in the aqueous solution of powder.
8. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 1 or 2, which is characterized in that described
Before step (3) further include: carry out film forming hot test to described adhesive, the coating slurry that will be prepared in the step (2)
It above foil, and places it under conditions of (400-800) DEG C and is toasted to prepare anodic aluminium oxide membrane, be then cooled to
Room temperature takes out anodic aluminium oxide membrane, observes the thermal contraction variation of anodic aluminium oxide membrane；If volume is without any contraction distortion after diaphragm heating,
The coating slurry prepared in the step (2) is then selected to carry out the operation of step (3).
9. the preparation method of anodic aluminium oxide membrane type lithium ion battery according to claim 1 or 2, which is characterized in that the step
Suddenly in (3), in the coating procedure of the alumina coated suspension, ambient humidity 40%-70%.
10. a kind of battery core is it is characterised by comprising: electrode-supported anodic aluminium oxide membrane compound electric pole piece and setting in parallel
Positive plate or negative electrode tab；Wherein,
Aluminium oxide and a certain proportion of water-soluble bonding of the electrode-supported anodic aluminium oxide membrane compound electric pole piece by different-grain diameter
Dosage form at alumina coated suspension with preset thickness coated on coiled battery pole piece surface and formed.
11. a kind of lithium ion battery, which is characterized in that including battery core as claimed in claim 10.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544761A (en) * | 2019-09-09 | 2019-12-06 | 广州鹏辉能源科技股份有限公司 | Preparation and evaluation methods of electrode plate, flexible porous positive plate and preparation method thereof, battery cell and lithium battery |
| CN110970589A (en) * | 2019-11-28 | 2020-04-07 | 中国电力科学研究院有限公司 | Sodium ion battery diaphragm, preparation method and sodium ion battery |
| CN113178547A (en) * | 2021-03-10 | 2021-07-27 | 武汉力兴(火炬)电源有限公司 | Preparation method of high-safety inorganic diaphragm composite electrode and composite electrode prepared by same |
| CN114221039A (en) * | 2021-12-14 | 2022-03-22 | 国网内蒙古东部电力有限公司电力科学研究院 | Lithium ion battery body used in ultralow temperature environment and preparation method thereof |
| CN115207568A (en) * | 2021-04-14 | 2022-10-18 | 苹果公司 | Low resistance separator design in battery cells |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531936A (en) * | 2016-12-27 | 2017-03-22 | 深圳中兴创新材料技术有限公司 | Ceramic diaphragm for lithium ion battery and preparation method of ceramic diaphragm |
| CN109004152A (en) * | 2018-06-28 | 2018-12-14 | 中国电力科学研究院有限公司 | Electrode-supported anodic aluminium oxide membrane and preparation method thereof |
-
2018
- 2018-12-17 CN CN201811542217.XA patent/CN109755634A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531936A (en) * | 2016-12-27 | 2017-03-22 | 深圳中兴创新材料技术有限公司 | Ceramic diaphragm for lithium ion battery and preparation method of ceramic diaphragm |
| CN109004152A (en) * | 2018-06-28 | 2018-12-14 | 中国电力科学研究院有限公司 | Electrode-supported anodic aluminium oxide membrane and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544761A (en) * | 2019-09-09 | 2019-12-06 | 广州鹏辉能源科技股份有限公司 | Preparation and evaluation methods of electrode plate, flexible porous positive plate and preparation method thereof, battery cell and lithium battery |
| CN110544761B (en) * | 2019-09-09 | 2021-03-09 | 广州鹏辉能源科技股份有限公司 | Preparation and evaluation methods of electrode slice and preparation method of flexible porous positive plate |
| CN110970589A (en) * | 2019-11-28 | 2020-04-07 | 中国电力科学研究院有限公司 | Sodium ion battery diaphragm, preparation method and sodium ion battery |
| CN113178547A (en) * | 2021-03-10 | 2021-07-27 | 武汉力兴(火炬)电源有限公司 | Preparation method of high-safety inorganic diaphragm composite electrode and composite electrode prepared by same |
| CN113178547B (en) * | 2021-03-10 | 2023-04-28 | 武汉力兴(火炬)电源有限公司 | Preparation method of inorganic diaphragm composite electrode and composite electrode prepared by same |
| CN115207568A (en) * | 2021-04-14 | 2022-10-18 | 苹果公司 | Low resistance separator design in battery cells |
| CN114221039A (en) * | 2021-12-14 | 2022-03-22 | 国网内蒙古东部电力有限公司电力科学研究院 | Lithium ion battery body used in ultralow temperature environment and preparation method thereof |
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