CN103872336A - Method for modifying positive aluminum foil current collector by utilizing phosphoric acid-fluorine-dichromate - Google Patents
Method for modifying positive aluminum foil current collector by utilizing phosphoric acid-fluorine-dichromate Download PDFInfo
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- CN103872336A CN103872336A CN201410124972.1A CN201410124972A CN103872336A CN 103872336 A CN103872336 A CN 103872336A CN 201410124972 A CN201410124972 A CN 201410124972A CN 103872336 A CN103872336 A CN 103872336A
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- aluminum foil
- aluminium foil
- positive pole
- current collector
- fluorine
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Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 title abstract description 19
- 239000011888 foil Substances 0.000 title abstract description 17
- MZIANMALQOGBFR-UHFFFAOYSA-L [Cr](=O)(=O)(O)O[Cr](=O)(=O)O.[F].P(O)(O)(O)=O Chemical compound [Cr](=O)(=O)(O)O[Cr](=O)(=O)O.[F].P(O)(O)(O)=O MZIANMALQOGBFR-UHFFFAOYSA-L 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000005030 aluminium foil Substances 0.000 claims description 42
- 229910001416 lithium ion Inorganic materials 0.000 claims description 25
- 230000004048 modification Effects 0.000 claims description 25
- 238000012986 modification Methods 0.000 claims description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 24
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 20
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 18
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 10
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 9
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 9
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 9
- 235000013024 sodium fluoride Nutrition 0.000 claims description 9
- 239000011775 sodium fluoride Substances 0.000 claims description 9
- 238000007605 air drying Methods 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000005486 organic electrolyte Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229940085991 phosphate ion Drugs 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- H01M4/64—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
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/66—Current collectors
- H01G11/68—Current collectors characterised by their material
-
- 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
-
- 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
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention relates to a method for modifying a positive aluminum foil current collector by utilizing phosphoric acid-fluorine-dichromate. The method is characterized by comprising the following steps of processing an aluminum foil for 1min to 30min by utilizing processing liquid at the temperature of 35 to 78 DEG C, washing the aluminum foil by utilizing the water, and finally naturally drying the aluminum foil or drying the aluminum foil by utilizing hot air at the temperature of 70 to 180 DEG C to obtain the modified positive aluminum foil current collector. When the prepared modified positive aluminum foil current collector is applied to a battery or a supercapacitor, the aluminum foil current collector has the advantages of good bending resistance, strong cohesive force with a positive material, small impedance, excellent charging-discharging performance and the like.
Description
Technical field
The invention belongs to technical field prepared by battery electrode, be specifically related to a kind of lithium battery, lithium ion battery, polymer battery and ultracapacitor of can be used for, with the positive pole aluminium foil collector of phosphoric acid-fluorine-bichromate modification.
Technical background
Lithium ion battery has that cell voltage is high, energy density is high, memory-less effect, have extended cycle life, the advantage such as self discharge is low, the performance of positive electrode plays a part decision to the performance of lithium ion battery.At present, lithium ion battery is mainly made up of parts such as organic electrolyte (polymer dielectric), barrier film, positive pole, negative pole, collectors.Due to lithium ion battery use liquid state organic electrolyte (or polymer dielectric) conductive capability a little less than, in order to realize the high rate during charging-discharging of lithium ion battery, the positive electrode of lithium ion battery and negative material are generally all processed into Powdered, again the powder of the powder of positive electrode or negative material is bonded on collector with adhesive etc., realizes the collection of electric current.Therefore,, for lithium ion battery, contact impedance, collector surface appearance situation of change in charge and discharge process between the surface appearance of collector, collector and positive electrode and negative material have a great impact the performance of battery.For example, when charging, easily there is passivation and increase polarization of electrode in the positive pole aluminium foil collector of lithium ion battery, the charge-discharge performance of battery is obviously declined; Bonding insecure and occur the phenomenon of dry linting between the positive pole aluminium foil collector of lithium ion battery and positive electrode, affect the fail safe of charge-discharge performance and the battery of battery.
When the powder of the positive electrode of lithium ion battery and aluminum foil current collector bonding, adhesive segment is by being formed by parts such as sticky aluminium foil, adhesive and graphite agent.Wherein every part all affects adhesive property.At present, the research that bonded aluminium foil surface is processed is less, mainly by the aluminum foil current collector of lithium ion cell positive in advance graphene coated or carbon dust etc. improve the performance of aluminium foil, to realize following effect.As, suppress battery polarization, reduce thermal effect, improve high rate performance, reduce the internal resistance of cell, obviously reduce the dynamic internal resistance amplification of cyclic process; Improve the consistency of battery, increase the cycle life of battery; Improve the adhesion of active material and collector, reduce pole piece manufacturing cost; Protection collector is not corroded by electrolyte; Improve high temperature and the cryogenic property of ferric phosphate lithium cell, improve the processing characteristics of LiFePO4, lithium titanate material.But, the methods such as above-mentioned graphene coated in aluminum foil current collector, carbon dust are in advance limited for the effect that improves positive pole aluminium foil collector performance, and complicated process of preparation, cost are high, the present invention adopts simple surface-treated method to improve the surface property of lithium ion cell positive aluminum foil current collector for this reason, reduces impedance between lithium ion cell positive aluminum foil current collector and positive electrode, reduces anodal dry linting phenomenon.
Summary of the invention
For avoiding the deficiencies in the prior art, the present invention adopts simple surface-treated method to improve the surface property of lithium ion cell positive aluminum foil current collector, reduce impedance between lithium ion cell positive aluminum foil current collector and positive electrode, reduce anodal dry linting phenomenon, improve the consistency of battery, the heavy-current discharge performance of sample is obviously improved.For realizing the technical solution adopted in the present invention be:
Aluminium foil is processed to 1min～30 min with treatment fluid 35 DEG C～78 DEG C temperature ranges, and water is rinsed well, last natural drying or with the heated air drying of 70 DEG C～180 DEG C of temperature ranges, makes modification positive pole aluminium foil collector.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 10 g/L～19g/L, sodium fluoride 2 g/L～10g/L, potassium bichromate 3 g/L～6g/L, concentrated hydrochloric acid 2 g/L～6g/L.
The concentration of described concentrated hydrochloric acid is within the scope of the w.t.% of 36w.t.%～37.
In treatment fluid, hydrochloric acid and aluminium surface react, and the aluminium chloride of generation can react with potassium bichromate and generate porous skin covering of the surface.Fluorine ion in treatment fluid enters in perforated membrane, in dry run, can be fixed, and meanwhile, phosphate ion also plays a part improvement to the surface property of aluminium simultaneously.The modification positive pole aluminium foil collector of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Embodiment
Below in conjunction with embodiment, the present invention is further detailed.Embodiment further supplements and explanation of the present invention, instead of to the restriction of inventing.
Embodiment 1
Aluminium foil is processed to 5min with treatment fluid at 51 DEG C, and water is rinsed well, finally natural drying, makes modification positive pole aluminium foil collector.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 15 g/L, sodium fluoride 6 g/L, potassium bichromate 5 g/L, 36 w.t.% hydrochloric acid 4 g/L.
Be designated as 180 ° with returning back to original state after 180 ° of the positive pole aluminium foil collector doublings of phosphoric acid-fluorine-bichromate modification, then roll over 180 ° and be designated as 360 °, the rest may be inferred.Test shows, prepares modification positive pole aluminium foil and rolls over 6300 ° continuously, can not fracture.3g polyvinylidene fluoride resin is dissolved in to 29ml dimethylacetylamide Making viscose.This viscose glue is coated in aluminum foil current collector, and the peel strength after 180 DEG C of heat treated 10min reaches 0.0671 N/mm
2above.On modification positive pole aluminium foil, apply LiFePO4 sample, while discharging and recharging under 1C multiplying power electric current, the discharge capacity of circulation is higher than 140mAh/g first.And on the aluminium foil through Modified Membrane processing, not applying LiFePO4 sample under same charging and discharging currents, the discharge capacity of circulation can only reach 115 mAh/g first.
The modification positive pole aluminium foil collector of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Embodiment 2
Aluminium foil is processed to 30 min with treatment fluid at 78 DEG C, then water rinses, and finally uses the heated air drying of 180 DEG C, makes modification positive pole aluminium foil collector well.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 19g/L, sodium fluoride 10g/L, potassium bichromate 6g/L, 37 w.t.% concentrated hydrochloric acid 6g/L.
The modification positive pole aluminium foil collector of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Embodiment 3
Aluminium foil is processed to 1min with treatment fluid at 35 DEG C, then water rinses, and finally uses 70 DEG C of heated air dryings, makes modification positive pole aluminium foil collector well.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 10 g/L, sodium fluoride 2 g/L, potassium bichromate 3 g/L, 37 w.t.% concentrated hydrochloric acid 2 g/L.
The modification positive pole aluminium foil collector of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Embodiment 4
Aluminium foil is processed to 1min with treatment fluid at 78 DEG C, then water rinses, and finally uses the heated air drying of 100 DEG C, makes modification positive pole aluminium foil collector well.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 10 g/L, sodium fluoride 10g/L, potassium bichromate 6g/L, 36 w.t.% concentrated hydrochloric acid 6g/L.
The modification positive pole aluminium foil collector of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Embodiment 5
Aluminium foil is processed to 30 min with treatment fluid at 35 DEG C, then water rinses, and finally uses 180 DEG C of heated air dryings, makes modification positive pole aluminium foil collector well.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 19g/L, sodium fluoride 2 g/L, potassium bichromate 3 g/L, 37 w.t.% concentrated hydrochloric acid 2 g/L.
The modification positive pole aluminium foil collector of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Embodiment 6
Aluminium foil is processed to 25min with treatment fluid at 73 DEG C, then water rinses well, finally natural drying, make modification positive pole aluminium foil collector.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 12 g/L, sodium fluoride 5 g/L, potassium bichromate 3 g/L, 36 w.t.% concentrated hydrochloric acid 2 g/L.
The modification positive pole aluminium foil collector of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Embodiment 7
Aluminium foil is processed to 1min with treatment fluid at 35 DEG C, then water rinses, and finally uses 70 DEG C of heated air dryings, makes the positive pole aluminium foil collector of modification well.
Described treatment fluid composed as follows: sodium dihydrogen phosphate 10 g/L, sodium fluoride 10g/L, potassium bichromate 3 g/L, 36 w.t.% concentrated hydrochloric acid 3 g/L.
The positive pole aluminium foil collector of the modification of preparation during as the plus plate current-collecting body of lithium ion battery, has the advantages such as folding resistance is good, strong with the cohesive force of positive electrode, impedance is little, charge-discharge performance is excellent.
Claims (3)
1. use the method for phosphoric acid-fluorine-bichromate modification positive pole aluminium foil collector, it is characterized in that: aluminium foil treatment fluid is processed to 1min～30 min 35 DEG C～78 DEG C temperature ranges, then water is rinsed well, last natural drying or with the heated air drying of 70 DEG C～180 DEG C of temperature ranges, make modification positive pole aluminium foil collector;
Described treatment fluid composed as follows: sodium dihydrogen phosphate 10 g/L～19g/L, sodium fluoride 2 g/L～10g/L, potassium bichromate 3 g/L～6g/L, concentrated hydrochloric acid 2 g/L～6g/L.
2. the method with phosphoric acid-fluorine-bichromate modification positive pole aluminium foil collector according to claim 1, is characterized in that the concentration of described concentrated hydrochloric acid is within the scope of 36w.t.%～37w.t.%.
3. the method with phosphoric acid-fluorine-bichromate modification positive pole aluminium foil collector according to claim 1, is characterized in that described positive pole aluminium foil collector is for lithium battery, lithium ion battery, polymer battery or ultracapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124972.1A CN103872336B (en) | 2014-03-31 | 2014-03-31 | Method for modifying positive aluminum foil current collector by utilizing phosphoric acid-fluorine-dichromate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124972.1A CN103872336B (en) | 2014-03-31 | 2014-03-31 | Method for modifying positive aluminum foil current collector by utilizing phosphoric acid-fluorine-dichromate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103872336A true CN103872336A (en) | 2014-06-18 |
| CN103872336B CN103872336B (en) | 2017-01-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410124972.1A Expired - Fee Related CN103872336B (en) | 2014-03-31 | 2014-03-31 | Method for modifying positive aluminum foil current collector by utilizing phosphoric acid-fluorine-dichromate |
Country Status (1)
| Country | Link |
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| CN (1) | CN103872336B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011082A (en) * | 2017-11-20 | 2018-05-08 | 郑州天舜电子技术有限公司 | A kind of lithium ion battery negative material and preparation method thereof |
| CN109346724A (en) * | 2018-10-24 | 2019-02-15 | 遵义源创生产力促进中心有限公司 | A kind of fluoboric acid improvement positive pole aluminium foil collector performance methodology |
| CN109390550A (en) * | 2018-10-24 | 2019-02-26 | 遵义源创生产力促进中心有限公司 | A kind of positive pole aluminium foil collector performance improvement method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB632102A (en) * | 1945-06-30 | 1949-11-16 | American Chem Paint Co | Production of coatings on aluminium and its alloys |
| CN103620839A (en) * | 2011-06-21 | 2014-03-05 | 海德鲁铝业钢材有限公司 | Chemically treated current collector foil produced of aluminum or an aluminum alloy |
-
2014
- 2014-03-31 CN CN201410124972.1A patent/CN103872336B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB632102A (en) * | 1945-06-30 | 1949-11-16 | American Chem Paint Co | Production of coatings on aluminium and its alloys |
| CN103620839A (en) * | 2011-06-21 | 2014-03-05 | 海德鲁铝业钢材有限公司 | Chemically treated current collector foil produced of aluminum or an aluminum alloy |
Non-Patent Citations (1)
| Title |
|---|
| 赵春英等: "铝材磷酸-铬酸盐转化膜与聚偏二氟乙烯涂料的研究", 《电镀与精饰》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011082A (en) * | 2017-11-20 | 2018-05-08 | 郑州天舜电子技术有限公司 | A kind of lithium ion battery negative material and preparation method thereof |
| CN108011082B (en) * | 2017-11-20 | 2020-02-11 | 萝北泰东德新材料科技有限公司 | Lithium ion battery cathode material and preparation method thereof |
| CN109346724A (en) * | 2018-10-24 | 2019-02-15 | 遵义源创生产力促进中心有限公司 | A kind of fluoboric acid improvement positive pole aluminium foil collector performance methodology |
| CN109390550A (en) * | 2018-10-24 | 2019-02-26 | 遵义源创生产力促进中心有限公司 | A kind of positive pole aluminium foil collector performance improvement method |
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| Publication number | Publication date |
|---|---|
| CN103872336B (en) | 2017-01-18 |
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