CN103606645A - Lithium ion battery of model airplane - Google Patents
Lithium ion battery of model airplane Download PDFInfo
- Publication number
- CN103606645A CN103606645A CN201310578334.2A CN201310578334A CN103606645A CN 103606645 A CN103606645 A CN 103606645A CN 201310578334 A CN201310578334 A CN 201310578334A CN 103606645 A CN103606645 A CN 103606645A
- Authority
- CN
- China
- Prior art keywords
- pole piece
- lithium ion
- ion battery
- positive
- base material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/80—Porous plates, e.g. sintered carriers
- H01M4/801—Sintered carriers
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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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 lithium ion battery of a model airplane. The lithium ion battery comprises a positive pole piece, a negative pole piece, and a diaphragm and electrolyte arranged between the positive pole piece and the negative pole piece; each of the positive pole piece and the negative pole piece comprises pole piece slurry and a pole piece base material; polymer carrier coatings are coated on the surfaces of the positive pole piece and the negative pole piece and pores are formed in the surfaces of the pole piece base materials. According to the lithium ion battery of the model airplane, the pores are formed in the surfaces of the pole piece base materials so as to reduce the resistance to the pole pieces and improve the performance of the lithium ion battery; the separation is generated by the polymer carrier coatings so that the diaphragm cannot be scratched and the battery is effectively prevented from being combusted or exploded.
Description
Technical field
The present invention relates to battery, the lithium ion battery of a kind of aeromodelling airplane of specific design.
Background technology
Aeromodelling airplane is the same with general manned aircraft, mainly wing, empennage, fuselage, undercarriage, engine and control system six parts, consists of.And solar panel and all kinds of battery can be used as the power resources of the model of an airplane.For the aeromodelling airplane that uses lithium ion battery, we need to consider the safety problem of lithium ion battery and the performance of lithium ion battery of aeromodelling airplane, the performance of existing lithium ion battery is not mostly very desirable, and, battery just, negative plate surface is much highly the salient point of several microns sometimes, these salient points make to use in the process of lithium ion battery at aeromodelling airplane, because extruding, vibrations, collision is just, barrier film between cathode pole piece produces and scratches or puncture, just cause, negative plate contact short circuit, and battery is most important in aeromodelling airplane is used, battery in use damages, use aeromodelling airplane that lithium ion battery the is power source that will run out of steam, probably face and crash or danger on fire.
Summary of the invention
The object of the invention is the defect for above-mentioned prior art, provide a kind of lithium ion battery of aeromodelling airplane to have advantages of that performance is strong and fail safe good.
Object of the present invention can be achieved through the following technical solutions:
A kind of lithium ion battery of aeromodelling airplane, comprise positive plate, negative plate and be placed in barrier film and the electrolyte between positive and negative plate, described positive and negative plate comprises pole piece slurry and pole piece base material, and described positive and negative plate surface-coated has polymer support coating and in the pore-creating of pole piece substrate surface.
Described polymer support coating is comprised of polymer and fire retardant, and wherein the percentage by weight of fire retardant in polymer support coating is 10%～80%, and the percentage by weight of described polymer in polymer support coating is 20%～90%.
Described polymer is a kind of to three kinds of mixing in vinylidene, vinylidene～HFC-236fa copolymer, polyacrylonitrile, polymethyl methacrylate, oxidic polyethylene.
Described fire retardant is a kind of or its mixture in magnesium oxide, alundum (Al2O3).
The making of described polymer support coating comprises the following steps:
A, 10%～40% polymer by weight, 20%～60% solvent, the fire retardant of 5%～%35.6% and 5%～20% effumability additive are hybridly prepared into coating masking liquid;
B, coating is coated on the surface of positive plate, negative plate;
C, vacuum bakeout, remove solvent and effumability additive in figure layer.
Described effumability additive is n-butanol, and described solvent is 1-METHYLPYRROLIDONE, dimethyl formamide, acetone or butanone.
Described pole piece through hole that base material is made is evenly distributed on described positive and negative plate; The cross sectional shape of described through hole is circle, ellipse, rectangle, triangle or irregular shape.
On described pole piece base material, by punching processing, Blanking punching or Blanking, draw in the net, on described pole piece base material, go out some through holes described in each the sectional area of through hole be 70um
2～5mm
2, the thickness of described positive and negative electrode plate substrate is 5um～0.2mm, its pore-creating rate is 10%～60%.
Beneficial effect of the present invention: by the pore-creating of pole piece base material, reduce the impedance of pole piece, improve the performance of lithium ion battery, by polymer support coating, produce and intercept, resistance film can not scratch, just avoid, negative pole contact and cause short circuit, in polymer support coating manufacture process, removing of solvent and volatile additive leaves a large amount of spaces, can not affect other chemical property of battery, when other reason causes that internal temperature of battery is too high, polymer molecule in polymer support coating starts to enter molten condition, just covering equably with magnesium oxide and the alundum (Al2O3) particle of scheming in layer uniformly, the whole surface of negative plate, avoided the organic bath of inside battery with just, there is violent chemical reaction in negative electrode, there is battery burning or blast.
Embodiment
A kind of lithium ion battery of aeromodelling airplane, comprise positive plate, negative plate and be placed in barrier film and the electrolyte between positive and negative plate, positive and negative plate comprises pole piece slurry and pole piece base material, and positive and negative plate surface-coated has polymer support coating and in the pore-creating of pole piece substrate surface.
The making of polymer support coating comprises the following steps:
A, 10%～40% polymer by weight, 20%～60% solvent, the fire retardant of 5%～%35.6% and 5%～20% effumability additive are hybridly prepared into coating masking liquid;
B, coating is coated on the surface of positive plate, negative plate;
C, vacuum bakeout, remove solvent and effumability additive in figure layer.
Polymer support coating is comprised of polymer and fire retardant, and wherein the percentage by weight of fire retardant in polymer support coating is 10%～80%, and the percentage by weight of polymer in polymer support coating is 20%～90%.
Polymer is a kind of to three kinds of mixing in vinylidene, vinylidene～HFC-236fa copolymer, polyacrylonitrile, polymethyl methacrylate, oxidic polyethylene.
Fire retardant is a kind of or its mixture in magnesium oxide, alundum (Al2O3).Effumability additive is n-butanol, and solvent is 1-METHYLPYRROLIDONE, dimethyl formamide, acetone or butanone.
Can apply pole piece slurry in the both side surface of lithium battery pole plate substrate, and form lithium battery pole slice.This lithium battery pole plate substrate can be used as the base material of positive plate or negative plate, selects different pole piece slurries can produce positive plate or negative plate.Lithium battery pole plate substrate can be selected Copper Foil or aluminium foil, can be made into as required positive-pole base material or base material of cathode.The thickness of the base material after moulding is 5um～0.2mm, can select as requested different thickness.On base material, by machine work, make some through holes, pole piece through hole that base material is made is evenly distributed on described positive and negative plate; The cross sectional shape of through hole is circle, ellipse, rectangle, triangle or irregular shape.These through holes connect base material both side surface, its pore-creating rate is 10%～60%, can adjust as required density, make the pole piece slurry that is coated in base material both side surface to contact conducting by through hole, thereby improved the permeability of pole piece base material, increase the volatility of pole piece slurry, can help battery capacity to improve 20%～40%.And, due to the setting of through hole, reduced the use of the material of base material, saved cost.
Can choose through hole is manhole, by punch forming, is evenly distributed on base material, and its aperture is in preparation, during lithium battery pole slice of the present invention, first to need to prepare lithium battery pole plate substrate between 8um～2mm.For the preparation of lithium battery pole plate substrate, first process the base materials such as the Copper Foil of thickness between 0.5um～1mm or aluminium foil; Then, adopt machining mode on base material, to prepare some through holes, make through hole run through base material both side surface.By punching technology, on base material, go out equally distributed some through holes.Certainly, can also, by techniques such as Blanking punching, Blanking draw in the net, on pole piece base material, process continuously equally distributed through hole.
Then after pole piece base material, be coated with superior pole piece slurry, form positive and negative plate, two-sided thickness adds the thickness of superior pole piece base material just between 100um-120um.
After getting 100 parts of polymer vinylidenes and 180 parts of dimethylformamides and mixing at 60 degree temperature stirring and dissolving, add magnesium oxide and 20 parts of effumability additive n-butanols that 1.1 parts of average diameters are 2um, high-speed stirred is uniformly dispersed fire retardant and volatile dose.With the mode of coating coating masking liquid in anodal and two pole piece upper and lower surfaces of negative pole, coating average thickness is 8um.Pole piece is placed in the vacuum oven of 90 ℃ and toasts 2 hours, dimethyl formamide and effumability additive are removed, obtaining thickness is the polymer support coating of 5um.The part by weight of MgO in polymer support coating is 1%.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technology people of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. the lithium ion battery of an aeromodelling airplane, comprise positive plate, negative plate and be placed in barrier film and the electrolyte between positive and negative plate, described positive and negative plate comprises pole piece slurry and pole piece base material, it is characterized in that: described positive and negative plate surface-coated has polymer support coating and in the pore-creating of pole piece substrate surface.
2. the lithium ion battery of a kind of aeromodelling airplane according to claim 1, it is characterized in that: described polymer support coating is comprised of polymer and fire retardant, wherein the percentage by weight of fire retardant in polymer support coating is 10%～80%, and the percentage by weight of described polymer in polymer support coating is 20%～90%.
3. the lithium ion battery of a kind of aeromodelling airplane according to claim 2, is characterized in that: described polymer is a kind of to three kinds of mixing in vinylidene, vinylidene-HFC-236fa copolymer, polyacrylonitrile, polymethyl methacrylate, oxidic polyethylene.
4. the lithium ion battery of a kind of aeromodelling airplane according to claim 3, is characterized in that: described fire retardant is a kind of or its mixture in magnesium oxide, alundum (Al2O3).
5. the lithium ion battery of a kind of aeromodelling airplane according to claim 4, is characterized in that, the making of described polymer support coating comprises the following steps:
A, 10%～40% polymer by weight, 20%～60% solvent, the fire retardant of 5%～%35.6% and 5%～20% effumability additive are hybridly prepared into coating masking liquid;
B, coating is coated on the surface of positive plate, negative plate;
C, vacuum bakeout, remove solvent and effumability additive in figure layer.
6. the lithium ion battery of a kind of aeromodelling airplane according to claim 5, is characterized in that: described effumability additive is n-butanol, and described solvent is 1-METHYLPYRROLIDONE, dimethyl formamide, acetone or butanone.
7. the lithium ion battery of a kind of aeromodelling airplane according to claim 1, is characterized in that: described pole piece through hole that base material is made is evenly distributed on described positive and negative plate; The cross sectional shape of described through hole is circle, ellipse, rectangle, triangle or irregular shape.
8. the lithium ion battery of a kind of aeromodelling airplane according to claim 7, it is characterized in that: on described pole piece base material, by punching processing, Blanking punching or Blanking, draw in the net, on described pole piece base material, go out some through holes described in each the sectional area of through hole be 70um
2～5mm
2, the thickness of described positive and negative electrode plate substrate is 5um～0.2mm, its pore-creating rate is 10%～60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578334.2A CN103606645A (en) | 2013-11-15 | 2013-11-15 | Lithium ion battery of model airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578334.2A CN103606645A (en) | 2013-11-15 | 2013-11-15 | Lithium ion battery of model airplane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103606645A true CN103606645A (en) | 2014-02-26 |
Family
ID=50124859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310578334.2A Pending CN103606645A (en) | 2013-11-15 | 2013-11-15 | Lithium ion battery of model airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103606645A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680086A (en) * | 2014-12-03 | 2016-06-15 | 纳米及先进材料研发院有限公司 | Lithium ion battery with thermal sensitive layer |
| CN105733332A (en) * | 2016-03-01 | 2016-07-06 | 天津市捷威动力工业有限公司 | Flame-retardant coating and lithium ion battery employing same |
| CN111463502A (en) * | 2020-03-18 | 2020-07-28 | 山东合泰新能源有限公司 | Structure for avoiding zinc dendrite short circuit, preparation and battery containing structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6168885B1 (en) * | 1998-08-21 | 2001-01-02 | Sri International | Fabrication of electrodes and devices containing electrodes |
| CN1725547A (en) * | 2004-07-21 | 2006-01-25 | 上海比亚迪有限公司 | Lithium ion secondary battery |
| CN202405370U (en) * | 2011-12-15 | 2012-08-29 | 罗栋 | Lithium battery pole piece base material, lithium battery pole piece and lithium battery |
-
2013
- 2013-11-15 CN CN201310578334.2A patent/CN103606645A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6168885B1 (en) * | 1998-08-21 | 2001-01-02 | Sri International | Fabrication of electrodes and devices containing electrodes |
| CN1725547A (en) * | 2004-07-21 | 2006-01-25 | 上海比亚迪有限公司 | Lithium ion secondary battery |
| CN202405370U (en) * | 2011-12-15 | 2012-08-29 | 罗栋 | Lithium battery pole piece base material, lithium battery pole piece and lithium battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680086A (en) * | 2014-12-03 | 2016-06-15 | 纳米及先进材料研发院有限公司 | Lithium ion battery with thermal sensitive layer |
| CN105733332A (en) * | 2016-03-01 | 2016-07-06 | 天津市捷威动力工业有限公司 | Flame-retardant coating and lithium ion battery employing same |
| CN111463502A (en) * | 2020-03-18 | 2020-07-28 | 山东合泰新能源有限公司 | Structure for avoiding zinc dendrite short circuit, preparation and battery containing structure |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20140226 |