CN109402458A - High-intensitive the lithium battery two-sided dark aluminium foil of 3003 alloys and its manufacturing method - Google Patents
High-intensitive the lithium battery two-sided dark aluminium foil of 3003 alloys and its manufacturing method Download PDFInfo
- Publication number
- CN109402458A CN109402458A CN201811512009.5A CN201811512009A CN109402458A CN 109402458 A CN109402458 A CN 109402458A CN 201811512009 A CN201811512009 A CN 201811512009A CN 109402458 A CN109402458 A CN 109402458A
- Authority
- CN
- China
- Prior art keywords
- rolling
- aluminium foil
- roll
- foil
- lithium battery
- 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.)
- Granted
Links
- 239000005030 aluminium foil Substances 0.000 title claims abstract description 92
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 38
- 239000000956 alloy Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 93
- 238000005096 rolling process Methods 0.000 claims abstract description 79
- 239000011888 foil Substances 0.000 claims abstract description 57
- 238000005097 cold rolling Methods 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 50
- 238000002844 melting Methods 0.000 claims abstract description 48
- 230000008018 melting Effects 0.000 claims abstract description 48
- 230000008569 process Effects 0.000 claims abstract description 36
- 238000005516 engineering process Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 238000007670 refining Methods 0.000 claims description 95
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 92
- 239000003921 oil Substances 0.000 claims description 46
- 238000005266 casting Methods 0.000 claims description 36
- 239000003795 chemical substances by application Substances 0.000 claims description 36
- 239000004411 aluminium Substances 0.000 claims description 26
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 24
- 239000002699 waste material Substances 0.000 claims description 24
- 239000010731 rolling oil Substances 0.000 claims description 23
- 238000000137 annealing Methods 0.000 claims description 21
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 20
- 239000002253 acid Substances 0.000 claims description 18
- 238000009966 trimming Methods 0.000 claims description 18
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 239000004615 ingredient Substances 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000003723 Smelting Methods 0.000 claims description 12
- -1 aluminum fluoride Sodium Chemical compound 0.000 claims description 12
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 claims description 12
- 230000000994 depressogenic effect Effects 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 12
- 235000011152 sodium sulphate Nutrition 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000001103 potassium chloride Substances 0.000 claims description 10
- 235000011164 potassium chloride Nutrition 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 7
- 238000007872 degassing Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 230000000881 depressing effect Effects 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000000686 essence Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- YVWVILBCUPRAIC-LKFDHHINSA-N Micropine Chemical compound CCCC\C=C\C=C\C=C\[C@@H]1CC[C@@H](O)[C@@H](CO)N1 YVWVILBCUPRAIC-LKFDHHINSA-N 0.000 description 1
- WARMWDVKZKPUTH-UHFFFAOYSA-N Micropine Natural products CCCCC=CC=CC=CC1CCC(O)C(CO)N1C WARMWDVKZKPUTH-UHFFFAOYSA-N 0.000 description 1
- 241000237509 Patinopecten sp. Species 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000020637 scallop Nutrition 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/40—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of high-intensitive the lithium battery two-sided dark aluminium foil of 3003 alloys and its manufacturing method, the two-sided dark aluminium foil of 3003 alloys includes following components: Fe, Si, Cu, Ti, Mn, Mg, Zn, Al.The present invention is regulated and controled by the element proportion to 3003 alloys, two-sided dark aluminium foil is made by melting and casting-rolling technology, cold-rolling process, foil roll process, N layers of aluminium foil are overlaped and are rolled, 3 or more aluminium foil products can be obtained, lithium battery is improved with highly conductive aluminium foil mechanical performance index simultaneously, finished material tensile strength is up to 258.64-270.21MPa, elongation percentage is up to 3.8-5.1% simultaneously, template significantly improves, production efficiency improves 50% or more, surface is without band oil, moistened surface tension >=33 dyne value.
Description
Technical field
The invention belongs to battery foil preparation technical fields, and in particular to a kind of high intensity lithium battery is two-sided dark with 3003 alloys
Aluminium foil and its manufacturing method.
Background technique
New-energy automobile industry development in China's is rapid in recent years, and lithium battery is the key that new-energy automobile development.With
More stringent requirements are proposed to lithium battery for the development of battery technology, especially new-energy automobile field, and battery industry is also to battery
It also proposed new requirement with aluminium foil.The defects of this aluminium foil desired size precision is high, surface is clean, uniform, without scuffing is wiped, plate
Type balance, thickness is very thin, and has high-tensile and elongation percentage.The trend being gradually thinned with aluminum foil for lithium battery is right
Tensile strength, elongation percentage and surface quality need also to increase accordingly.And existing aluminum foil for lithium battery is meeting aluminium content 99%
Its tensile strength and elongation percentage are not able to satisfy thinning demand simultaneously, therefore take the side of addition alloying element compared with multi-product at present
Formula improves its mechanical performance.But battery aluminium foil products are due to the particularity of its performance requirement, to tensile strength and elongation percentage
It has higher requirements.
As Chinese patent application document " a kind of aluminum foil for lithium battery " (publication number: CN105018799A) discloses a kind of lithium
Battery aluminium foil, the ingredient and its mass percent of the aluminum foil for lithium battery are as follows: Fe:0.38-0.45%；Si:0.1-0.15；
Cu:0.03-0.06%；Ti:0.015-0.02%；Mn :≤0.03%；Mg :≤0.03%；Zn :≤0.03%；Surplus be Al and
Inevitable impurity.It can be made: the heating of aluminum foil for lithium battery raw material being smelted into as follows melting, casting-rolling technology:
Aluminium alloy melt；Successively carry out refining skim, crystal grain refinement, degasification slagging-off, filtration treatment；Again by filtered aluminium alloy melt
Continuous casting and rolling is at blank；Cold-rolling process: by the cold rolling of blank elder generation, then first time annealing, roughing, double annealing processing are carried out；
The processing of foil pressure: by the aluminium foil finish rolling after annealing, finally cutting can obtain finished product aluminum foil for lithium battery finished product.But the technique is raw
Battery aluminium foil, have the following problems: (1) tensile strength and elongation percentage are insufficient, and surface wettability tension is not high；(2) bright face band
Oil influences the coating uniformity and electric conductivity of lithium battery base material；(3) in template situation, the template of 2 pack rolling is not good enough；(4)
On once production aluminium foil number, it is only capable of production 2, there is a problem of that production efficiency is low, be unfavorable for the raising of yield.
Summary of the invention
The object of the present invention is to provide a kind of high-intensitive the lithium battery two-sided dark aluminium foil of 3003 alloys and its manufacturing method, with
Solving the battery aluminium foil of existing production technology production, that there are tensile strength and elongation percentage is low, template is poor, and production efficiency is not high, adds
Upper surface band oil, will finally directly affect the actual techniques problem of coating uniformity and electric conductivity of lithium battery base material etc..
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, includes following mass percent component: Fe:0.4-
0.5%, Si :≤0.10%, Cu:0.05-0.09%, Ti:0.01-0.025%, Mn:1.0-1.1%, Mg :≤0.005%,
Zn :≤0.005%, surplus Al.
Further, the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys includes following mass percent group
Point: Fe:0.46%, Si:0.08%, Cu:0.079%, Ti:0.023%, Mn:1.04%, Mg:0.003%, Zn:0.004%,
Surplus is Al.
Further, the high-intensitive lithium battery is 0.01-0.025mm, tension with the two-sided dark aluminum foil thickness of 3003 alloys
Intensity is 258.64-270.21MPa, elongation percentage 3.8-5.1%.
The present invention also provides a kind of manufacturing methods of high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys, including following step
It is rapid:
(1) melting, casting-rolling technology
A. waste material is first put into smelting furnace, then puts into aluminium ingot and aluminum water, wherein aluminium ingot weight accounts for the 10-20% of total weight；
Parameter: solid-to-liquid ratio 3:7；
B. melting is carried out in smelting furnace, adds alloy after the completion of melting, and nitrogen is passed through after standing and refining agent carries out essence
Refining is skimmed after the completion of refining, composition adjustment and standing, examines ingredient qualified；
Parameter: the time of melting is 4-6 hours, and the temperature of melting is 730-760 DEG C, and the time stood after melting is 25-
40 minutes, refining time 15-20 minutes；
C. the feeding holding furnace of molten aluminum made from step b is subjected to down furnace, starts injection refining machine to standing after the completion of furnace
Molten aluminum addition refining agent in furnace carries out double refining and rechecks ingredient, skims after refining every time, smart at regular intervals
Refining is primary, and the time refined every time is 15-20 minutes, is skimmed after standing 5-10 minutes, and every 1.5-2 hours refining is primary；
Parameter: it is 15-20 minutes to the time that molten aluminum in standing furnace refines every time, skims after standing 5-10 minutes, often
Refining in 1.5-2 hours is primary, and 740-760 DEG C of refining temperature；
D. degasification is carried out to molten aluminum using argon gas, adjusts graphite rotator revolving speed, guarantees hydrogen content≤0.12ml/ of molten aluminum
100gAl adds Ti progress crystal grain refinements；
Parameter: the revolving speed of graphite rotator is 400-500r/min, and the Ti silk speed of addition is 200-230mm/min；
E. molten aluminum made from step d is sent into before casting and rolling machine in the chest (preceding case) for carrying molten aluminum, into after bast mouth, warp
The Casting Roller of built-in recirculated water carries out casting, then coils into cold rolling blank by devices for taking-up；
Parameter: high control is in 0.25-0.30mm in Casting Roller grinding requirement, and middle high symmetry is in 0.005-0.015mm, slightly
Rugosity is 0.8-1.0um, and roll cylindricity reaches 0.005-0.015mm；Preceding box temperature degree control is at 700-715 DEG C, preceding case liquid level
Height 10-20mm rolls section length and is set as 55-60mm, and roll casting speed control controls cooling water pressure and exist in 800-900mm/min
Between 0.3-0.4MPa；
(2) cold-rolling process
A. roll dressing parameter and rolling oil index；
Parameter: pressure roll roughness is 0.7um, and middle high 0mm, foil base passage gloss level of roll is 0.45um, middle height
0mm, rolling oil viscosity are 2.1-2.8mm2/ s, acid value≤0.15mgKOH/g, flash-point > 100 DEG C roll oil content 8-8.5%,
Oil product transmitance >=95%；
B. pressure cold rolling is carried out to cold rolling coil using cold-rolling mill, rolling 4.0-4.2mm passage thickness moves back, and is rolled to 6 altogether
It is aluminum foil stock that passage, which rolls 0.24mm,；It is rolled to technique: cold rolling (7.0mm-4.0mm)- move back-cold rolling (4.0mm-2.1mm-
1.2mm)-rewinding trimming-cold rolling (1.2mm-0.68mm-0.4mm-0.24mm)-rewinding trimming-foil rolls；
C. equal annealing process is used, and is depressed again after equal annealing process, drafts thickness, which uniformly successively decreases, rolls 0.24Mm；
Parameter: equal annealing process are as follows: be warming up to 550 DEG C of heat preservations 18-20 hours for 0 hour, then be cooled to 520 through 0.5-1 hours
DEG C heat preservation 6-7 hours, finally directly come out of the stove air-cooled；
D. rewinding trimming uses 1.2mm and 0.24mm trimming twice, and total trimming amount is in 60-70mm；
Parameter: knife-edge gap amount 0.1-0.12mm, shear velocity 300-350m/min, uncoiling tension 30-35kn；
(3) foil roll process:
A. it carries out foil to aluminium foil using shaping roll and planishing roll to roll, foil adds ROLLING OIL during rolling, the number of pressure is 4
More than secondary, the thickness depressed every time accounts for the 30-45% for depressing preceding overall thickness, and final pass is controlled in 35-38%, roughing ROLLING OIL
Viscosity is 1.8-2.5mm2/ s, acid value≤0.1mgKOH/g, flash-point > 85 DEG C, rolling oil content 5-5.5%, oil product transmitance >=
97%；It is 1.7-2.3mm that finish rolling, which rolls oil viscosity,2/ s, acid value≤0.03mgKOH/g, flash-point > 80 DEG C roll oil content <
5%, oil product transmitance >=97%；
B. close volume, finish rolling mill product thickness turned using N opening and closing volume, first by two together pairing be 2, third with
2 got togather close volume again and obtain 3, and so on can close volume N；
Parameter: speed 600-650m/nim batches tensile stress 30-35N/mm2, flatten roller pressure 3-5kg/c ㎡；
C. final pass, the N that coiling machine is closed out carry out pack rolling in finishing mill, are not exactly with the aluminium foil of roll contact
Two-sided dark aluminium foil products；
D. it cuts, the aluminium foil after the completion of finish rolling is rolled is rewinded by cutting, two-sided dark aluminium foil is poured out, then upper horizontal point
The machine of cutting can be divided into the lithium battery finished product aluminium foil of different specifications.
Further, the waste material described in melting, casting-rolling technology is level-one waste material, and level-one waste material refers to thickness >=1.0mm
Plate, coiled material, web-like side crops, casting volume header tailing, standing furnace empty block.
Further, the refining agent described in melting, casting-rolling technology step b is made of following components in weight percent: chlorine
Change potassium 40-70%, aluminium sodium fluoride 15-30%, phenyl-hexafluoride 1-10%, calcium sulfide 5-15%, sodium sulphate 5-20%.
Further, the refining agent dosage 1kg/T aluminium.
Further, the refining agent described in melting, casting-rolling technology step c is made of following components in weight percent: chlorine
Change potassium 40-70%, aluminium sodium fluoride 15-30%, phenyl-hexafluoride 1-10%, calcium sulfide 5-15%, sodium sulphate 5-20%.
Further, the refining agent dosage 2kg/T aluminium.
Further, the purity of the argon gas described in melting, casting-rolling technology step d is 99.995%.
The invention has the following advantages:
(1) present invention is regulated and controled by the element proportion to 3003 alloys, by melting and casting-rolling technology, Cold-roller
Two-sided dark aluminium foil is made in skill, foil roll process, and N layers of aluminium foil are overlaped and are rolled, and can obtain 3 or more aluminium foils and produce
Product, while lithium battery is improved with highly conductive aluminium foil mechanical performance index, finished material tensile strength is up to 258.64-
270.21MPa, while elongation percentage, up to 3.8-5.1%, template significantly improves, production efficiency improves 50% or more, and surface is without band
Oil, moistened surface tension >=33 dyne value, solve the battery aluminium foil of existing production technology production there are tensile strength and
Elongation percentage is low, template is poor, and production efficiency is not high, in addition surface band is oily, will finally directly affect the coating uniform of lithium battery base material
The actual techniques problem of property and electric conductivity etc..
(2) the high-intensitive lithium battery produced of the present invention with the two-sided dark aluminum foil thickness tolerance of 3003 alloys within ± 3%,
Width tolerance is within ± 1mm, and dyne value >=33, dark face aluminium powder has obtained effective control, no scollop, scallop, finished product service performance
It is higher with surface quality, most of battery can be suitable for.
(3) present invention adds Cu, Mn, Mg, Ti element and adjusts dosage appropriate, lead to by adjusting the ingredient of aluminium alloy
The synergistic effect changed between element is crossed, two-sided dark aluminium foil is made by melting and casting-rolling technology, cold-rolling process, foil roll process,
The performance of aluminium foil is effectively increased, the requirement for preparing battery aluminium foil can be met.
Detailed description of the invention
Fig. 1 is that the two-sided dark aluminum foil finished product thickness passage of the present invention uses 3 opening and closing volume pack rolling schematic diagram again.
Illustrate in figure: 1 is roll；2 be two-sided dark aluminium foil；3 be single side optical aluminum foil；A is and roll contact is bright face；B
It is dark face (mute face), as two-sided dark aluminium foil for discord roll contact.
Specific embodiment
To facilitate a better understanding of the present invention, it is illustrated by the following examples, these examples belong to protection of the invention
Range, but do not limit the scope of the invention.
In embodiment, the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys, includes following mass percent group
Point: Fe:0.4-0.5%, Si :≤0.10%, Cu:0.05-0.09%, Ti:0.01-0.025%, Mn:1.0-1.1%, Mg :≤
0.005%, Zn :≤0.005%, surplus Al.
The manufacturing method of the high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, comprising the following steps:
(1) melting, casting-rolling technology
A. waste material is first put into smelting furnace, then puts into aluminium ingot and aluminum water, wherein aluminium ingot weight accounts for the 10-20% of total weight,
Waste material is level-one waste material, and level-one waste material refers to thickness >=1.0mm plate, coiled material, web-like side crops, casting volume header tailing, quiet
Set fire grate sky block；
Parameter: solid-to-liquid ratio 3:7；
B. melting is carried out in smelting furnace, adds alloy after the completion of melting, and nitrogen is passed through after standing and refining agent carries out essence
Refining is skimmed after the completion of refining, composition adjustment and standing, examines ingredient qualified；
Parameter: the time of melting is 4-6 hours, and the temperature of melting is 730-760 DEG C, and the time stood after melting is 25-
40 minutes, refining time 15-20 minutes, refining agent was made of following components in weight percent: potassium chloride 40-70%, aluminum fluoride
Sodium 15-30%, phenyl-hexafluoride 1-10%, calcium sulfide 5-15%, sodium sulphate 5-20%；Refining agent dosage 1kg/T aluminium.
C. the feeding holding furnace of molten aluminum made from step b is subjected to down furnace, starts injection refining machine to standing after the completion of furnace
Molten aluminum addition refining agent in furnace carries out double refining and rechecks ingredient, skims after refining every time, smart at regular intervals
Refining is primary, and the time refined every time is 15-20 minutes, is skimmed after standing 5-10 minutes, and every 1.5-2 hours refining is primary；
Parameter: it is 15-20 minutes to the time that molten aluminum in standing furnace refines every time, skims after standing 5-10 minutes, often
Refining in 1.5-2 hours is primary, and 740-760 DEG C of refining temperature, refining agent is made of following components in weight percent: potassium chloride 40-
70%, aluminium sodium fluoride 15-30%, phenyl-hexafluoride 1-10%, calcium sulfide 5-15%, sodium sulphate 5-20%；Refining agent dosage 2kg/T
Aluminium.
D. degasification is carried out to molten aluminum using 99.995% argon gas of purity, adjusts graphite rotator revolving speed, guarantees the hydrogeneous of molten aluminum
Amount≤0.12ml/100gAl adds Ti progress crystal grain refinements；
Parameter: the revolving speed of graphite rotator is 400-500r/min, and the Ti silk speed of addition is 200-230mm/min.
E. molten aluminum made from step d is sent into before casting and rolling machine in the chest (preceding case) for carrying molten aluminum, into after bast mouth, warp
The Casting Roller of built-in recirculated water carries out casting, then coils into cold rolling blank by devices for taking-up；
Parameter: high control is in 0.25-0.30mm in Casting Roller grinding requirement, and middle high symmetry is in 0.005-0.015mm, slightly
Rugosity is 0.8-1.0um, and roll cylindricity reaches 0.005-0.015mm；Preceding box temperature degree control is at 700-715 DEG C, preceding case liquid level
Height 10-20mm rolls section length and is set as 55-60mm, and roll casting speed control controls cooling water pressure and exist in 800-900mm/min
Between 0.3-0.4MPa.
(2) cold-rolling process
A. roll dressing parameter and rolling oil index；
Parameter: pressure roll roughness is 0.7um, and middle high 0mm, foil base passage gloss level of roll is 0.45um, middle height
0mm, rolling oil viscosity are 2.1-2.8mm2/ s, acid value≤0.15mgKOH/g, flash-point > 100 DEG C roll oil content 8-8.5%,
Oil product transmitance >=95%.
B. pressure cold rolling is carried out to cold rolling coil using cold-rolling mill, rolling 4.0-4.2mm passage thickness moves back, and is rolled to 6 altogether
It is aluminum foil stock that passage, which rolls 0.24mm,.It is rolled to technique: cold rolling (7.0mm-4.0mm)- move back-cold rolling (4.0mm-2.1mm-
1.2mm)-rewinding trimming-cold rolling (1.2mm-0.68mm-0.4mm-0.24mm)-rewinding trimming-foil rolls
Rolling parameter is as shown in the table:
C. equal annealing process is used, and is depressed again after equal annealing process, drafts thickness, which uniformly successively decreases, rolls 0.24Mm；
Parameter: equal annealing process are as follows: be warming up to 550 DEG C of heat preservations 18-20 hours for 0 hour, then be cooled to 520 through 0.5-1 hours
DEG C heat preservation 6-7 hours, finally directly come out of the stove air-cooled.
D. rewinding trimming uses 1.2mm and 0.24mm trimming twice, and total trimming amount is in 60-70mm.
Parameter: knife-edge gap amount 0.1-0.12mm, shear velocity 300-350m/min, uncoiling tension 30-35kn；
(3) foil roll process:
A. it carries out foil to aluminium foil using shaping roll and planishing roll to roll, foil adds ROLLING OIL during rolling, the number of pressure is 4
More than secondary, the thickness depressed every time accounts for the 30-45% for depressing preceding overall thickness, and final pass is controlled in 35-38%.Roughing ROLLING OIL
Viscosity is 1.8-2.5mm2/ s, acid value≤0.1mgKOH/g, flash-point > 85 DEG C, rolling oil content 5-5.5%, oil product transmitance >=
97%；It is 1.7-2.3mm that finish rolling, which rolls oil viscosity,2/ s, acid value≤0.03mgKOH/g, flash-point > 80 DEG C roll oil content <
5%, oil product transmitance >=97%.
Rolling parameter is as shown in the table: by taking 0.012mm as an example
B. volume is closed, finish rolling mill product thickness is turned using N opening and closing volume.First by two together pairing be 2, third with
2 got togather close volume again and obtain 3, and so on can close volume N.
Parameter: speed 600-650m/nim batches tensile stress 30-35N/mm2, flatten roller pressure 3-5kg/cm2；
C. final pass, the N that coiling machine is closed out carry out pack rolling in finishing mill, are not exactly with the aluminium foil of roll contact
Two-sided dark aluminium foil products (shown in Fig. 1).Traditional handicraft final pass is only limited to 2 rollings, and production efficiency is low, and the present invention can be with
3,4, N mill products, yield significantly improve；
D. it cuts, the aluminium foil after the completion of finish rolling is rolled is rewinded by cutting, two-sided dark aluminium foil is poured out, then upper horizontal point
The machine of cutting can be divided into the lithium battery finished product aluminium foil of different specifications.
Embodiment 1
A kind of high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, includes following mass percent component: Fe:
0.41%, Si:0.10%, Cu:0.08%, Ti:0.01%, Mn:1.02%, Mg:0.005%, Zn:0.005%, surplus are
Al。
The manufacturing method of the high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, comprising the following steps:
(1) melting, casting-rolling technology
A. waste material is first put into smelting furnace, then puts into aluminium ingot and aluminum water, wherein aluminium ingot weight accounts for the 12% of total weight, waste material
For level-one waste material, level-one waste material refers to thickness >=1.0mm plate, coiled material, web-like side crops, casting volume header tailing, standing furnace
Empty block；
Parameter: solid-to-liquid ratio 3:7；
B. melting is carried out in smelting furnace, adds alloy after the completion of melting, and nitrogen is passed through after standing and refining agent carries out essence
Refining is skimmed after the completion of refining, composition adjustment and standing, examines ingredient qualified；
Parameter: the time of melting is 6 hours, and the temperature of melting is 730 DEG C, and the time stood after melting is 25 minutes, essence
The refining time 15 minutes, refining agent is made of following components in weight percent: potassium chloride 40%, aluminium sodium fluoride 30%, phenyl-hexafluoride
4%, calcium sulfide 6%, sodium sulphate 20%；Refining agent dosage 1kg/T aluminium.
C. the feeding holding furnace of molten aluminum made from step b is subjected to down furnace, starts injection refining machine to standing after the completion of furnace
Molten aluminum addition refining agent in furnace carries out double refining and rechecks ingredient, skims after refining every time, smart at regular intervals
Refining is primary, and the time refined every time is 15 minutes, and standing is skimmed after five minutes, and refining in every 1.5 hours is primary；
Parameter: being 15 minutes to the time that molten aluminum in standing furnace refines every time, standing is skimmed after five minutes, every 1.5 hours essences
Refining is primary, and 740 DEG C of refining temperature, refining agent is made of following components in weight percent: potassium chloride 45%, aluminium sodium fluoride 25%,
Phenyl-hexafluoride 10%, calcium sulfide 12%, sodium sulphate 8%；Refining agent dosage 2kg/T aluminium.
D. degasification is carried out to molten aluminum using 99.995% argon gas of purity, adjusts graphite rotator revolving speed, guarantees the hydrogeneous of molten aluminum
Amount is 0.12ml/100gAl, adds Ti progress crystal grain refinements；
Parameter: the revolving speed of graphite rotator is 400r/min, and the Ti silk speed of addition is 200mm/min.
E. molten aluminum made from step d is sent into before casting and rolling machine in the chest (preceding case) for carrying molten aluminum, into after bast mouth, warp
The Casting Roller of built-in recirculated water carries out casting, then coils into cold rolling blank by devices for taking-up；
Parameter: high control is in 0.25mm in Casting Roller grinding requirement, and in 0.005mm, roughness is middle high symmetry
0.8um, roll cylindricity reach 0.005mm；At 700 DEG C, preceding case liquid level 10mm rolls section length and is set as preceding box temperature degree control
55mm, roll casting speed control control cooling water pressure between 0.3MPa in 800mm/min.
(2) cold-rolling process
A. roll dressing parameter and rolling oil index；
Parameter: pressure roll roughness is 0.7um, and middle high 0mm, foil base passage gloss level of roll is 0.45um, middle height
0mm, rolling oil viscosity are 2.2mm2/ s, acid value 0.15mgKOH/g, roll oil content 8%, oil product transmitance by 112 DEG C of flash-point
It is 95%.
B. pressure cold rolling is carried out to cold rolling coil using cold-rolling mill, rolling 4.0-4.2mm passage thickness moves back, and is rolled to 6 altogether
It is aluminum foil stock that passage, which rolls 0.24mm,.It is rolled to technique: cold rolling (7.0mm-4.0mm)- move back-cold rolling (4.0mm-2.1mm-
1.2mm)-rewinding trimming-cold rolling (1.2mm-0.68mm-0.4mm-0.24mm)-rewinding trimming-foil rolls
Rolling parameter is as shown in the table:
C. equal annealing process is used, and is depressed again after equal annealing process, drafts thickness, which uniformly successively decreases, rolls 0.24Mm；
Parameter: equal annealing process are as follows: be warming up to 550 DEG C for 0 hour and keep the temperature 18 hours, then be cooled to 520 DEG C of heat preservations for 0.5 hour
It 6 hours, finally directly comes out of the stove air-cooled.
D. rewinding trimming uses 1.2mm and 0.24mm trimming twice, and total trimming amount is in 60mm.
Parameter: knife-edge gap amount 0.1mm, shear velocity 300m/min, uncoiling tension 30kn；
(3) foil roll process:
A. it carries out foil to aluminium foil using shaping roll and planishing roll to roll, foil adds ROLLING OIL during rolling, the number of pressure is 4
More than secondary, the thickness depressed every time, which accounts for, depresses the 32% of preceding overall thickness, and final pass is controlled 35%.Roughing rolls oil viscosity
1.8mm2/ s, acid value 0.1mgKOH/g, roll oil content 5%, oil product transmitance 97% by 86 DEG C of flash-point；Finish rolling rolls oil viscosity
For 1.8mm2/ s, acid value 0.03mgKOH/g, roll oil content 4.8%, oil product transmitance 97% by 82 DEG C of flash-point.
Rolling parameter is as shown in the table: by taking 0.012mm as an example
B. volume is closed, finish rolling mill product thickness is turned using N opening and closing volume.First by two together pairing be 2, third with
2 got togather close volume again and obtain 3.
Parameter: speed 620m/nim batches tensile stress 32N/mm2, flatten roller pressure 3kg/c ㎡；
C. final pass, 3 that coiling machine is closed out carry out pack rolling in finishing mill, are not exactly with the aluminium foil of roll contact
Two-sided dark aluminium foil products (shown in Fig. 1).Traditional handicraft final pass is only limited to 2 rollings, and production efficiency is low, and the present invention can be with
3 mill products, yield significantly improve；
D. it cuts, the aluminium foil after the completion of finish rolling is rolled is rewinded by cutting, two-sided dark aluminium foil is poured out, then upper horizontal point
The machine of cutting can be divided into the lithium battery finished product aluminium foil of different specifications.
Embodiment 2
A kind of high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, includes following mass percent component: Fe:
0.46%, Si:0.08%, Cu:0.079%, Ti:0.023%, Mn:1.04%, Mg:0.003%, Zn:0.004%, surplus are
Al。
The manufacturing method of the high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, comprising the following steps:
(1) melting, casting-rolling technology
A. waste material is first put into smelting furnace, then puts into aluminium ingot and aluminum water, wherein aluminium ingot weight accounts for the 16% of total weight, waste material
For level-one waste material, level-one waste material refers to thickness >=1.0mm plate, coiled material, web-like side crops, casting volume header tailing, standing furnace
Empty block；
Parameter: solid-to-liquid ratio 3:7；
B. melting is carried out in smelting furnace, adds alloy after the completion of melting, and nitrogen is passed through after standing and refining agent carries out essence
Refining is skimmed after the completion of refining, composition adjustment and standing, examines ingredient qualified；
Parameter: the time of melting is 5 hours, and the temperature of melting is 750 DEG C, and the time stood after melting is 32 minutes, essence
The refining time 18 minutes, refining agent is made of following components in weight percent: potassium chloride 60%, aluminium sodium fluoride 18%, phenyl-hexafluoride
5%, calcium sulfide 12%, sodium sulphate 5%；Refining agent dosage 1kg/T aluminium.
C. the feeding holding furnace of molten aluminum made from step b is subjected to down furnace, starts injection refining machine to standing after the completion of furnace
Molten aluminum addition refining agent in furnace carries out double refining and rechecks ingredient, skims after refining every time, smart at regular intervals
Refining is primary, and the time refined every time is 18 minutes, skims after standing 7 minutes, and refining in every 1.6 hours is primary；
Parameter: being 18 minutes to the time that molten aluminum in standing furnace refines every time, skim after standing 7 minutes, every 1.6 hours essences
Refining is primary, and 750 DEG C of refining temperature, refining agent is made of following components in weight percent: potassium chloride 48%, aluminium sodium fluoride 23%,
Phenyl-hexafluoride 7%, calcium sulfide 12%, sodium sulphate 10%；Refining agent dosage 2kg/T aluminium.
D. degasification is carried out to molten aluminum using 99.995% argon gas of purity, adjusts graphite rotator revolving speed, guarantees the hydrogeneous of molten aluminum
0.1ml/100gAl is measured, Ti progress crystal grain refinements are added；
Parameter: the revolving speed of graphite rotator is 450r/min, and the Ti silk speed of addition is 220mm/min.
E. molten aluminum made from step d is sent into before casting and rolling machine in the chest (preceding case) for carrying molten aluminum, into after bast mouth, warp
The Casting Roller of built-in recirculated water carries out casting, then coils into cold rolling blank by devices for taking-up；
Parameter: Casting Roller grinding require in high control in 0.26mm, middle high symmetry in 0.01mm, roughness 0.9um,
Roll cylindricity reaches 0.012mm；At 710 DEG C, preceding case liquid level 16mm rolls section length and is set as 58mm for preceding box temperature degree control,
Roll casting speed control controls cooling water pressure between 0.35MPa in 850mm/min.
(2) cold-rolling process
A. roll dressing parameter and rolling oil index；
Parameter: pressure roll roughness is 0.7um, and middle high 0mm, foil base passage gloss level of roll is 0.45um, middle height
0mm, rolling oil viscosity are 2.5mm2/ s, acid value 0.13mgKOH/g, roll oil content 8.3%, oil product transmitance by 110 DEG C of flash-point
95.4%.
B. pressure cold rolling is carried out to cold rolling coil using cold-rolling mill, rolling 4.0-4.2mm passage thickness moves back, and is rolled to 6 altogether
It is aluminum foil stock that passage, which rolls 0.24mm,.It is rolled to technique: cold rolling (7.0mm-4.0mm)- move back-cold rolling (4.0mm-2.1mm-
1.2mm)-rewinding trimming-cold rolling (1.2mm-0.68mm-0.4mm-0.24mm)-rewinding trimming-foil rolls
Rolling parameter is as shown in the table:
C. equal annealing process is used, and is depressed again after equal annealing process, drafts thickness, which uniformly successively decreases, rolls 0.24Mm；
Parameter: equal annealing process are as follows: be warming up to 550 DEG C for 0 hour and keep the temperature 19 hours, then be cooled to 520 DEG C of heat preservations for 0.8 hour
It 6.5 hours, finally directly comes out of the stove air-cooled.
D. rewinding trimming uses 1.2mm and 0.24mm trimming twice, and total trimming amount is in 65mm.
Parameter: knife-edge gap amount 0.1mm, shear velocity 320m/min, uncoiling tension 33kn；
(3) foil roll process:
A. it carries out foil to aluminium foil using shaping roll and planishing roll to roll, foil adds ROLLING OIL during rolling, the number of pressure is 4
More than secondary, the thickness depressed every time, which accounts for, depresses the 42% of preceding overall thickness, and final pass is controlled 36%.Roughing rolls oil viscosity
2.2mm2/ s, acid value 0.08mgKOH/g, roll oil content 5.3%, oil product transmitance 97.2% by 90 DEG C of flash-point；Finish rolling ROLLING OIL
Viscosity is 2.1mm2/ s, acid value 0.03mgKOH/g, roll oil content 4.5%, oil product transmitance 97.4% by 82 DEG C of flash-point.
Rolling parameter is as shown in the table: by taking 0.012mm as an example
B. volume is closed, finish rolling mill product thickness is turned using N opening and closing volume.First by two together pairing be 2, third with
2 got togather close volume again and obtain 3, and so on can close volume 4.
Parameter: speed 630m/nim batches tensile stress 32N/mm2, flatten roller pressure 4kg/c ㎡；
C. final pass, 4 that coiling machine is closed out carry out pack rolling in finishing mill, are not exactly with the aluminium foil of roll contact
Two-sided dark aluminium foil products.Traditional handicraft final pass is only limited to 2 rollings, and production efficiency is low, and the present invention can be rolled into 4
Product, yield significantly improve；
D. it cuts, the aluminium foil after the completion of finish rolling is rolled is rewinded by cutting, two-sided dark aluminium foil is poured out, then upper horizontal point
The machine of cutting can be divided into the lithium battery finished product aluminium foil of different specifications.
Embodiment 3
A kind of high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, includes following mass percent component: Fe:0.5%,
Si:0.07%, Cu:0.09%, Ti:0.022%, Mn:1.02%, Mg:0.002%, Zn:0.004%, surplus Al.
The manufacturing method of the high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, comprising the following steps:
(1) melting, casting-rolling technology
A. waste material is first put into smelting furnace, then puts into aluminium ingot and aluminum water, wherein aluminium ingot weight accounts for the 20% of total weight, waste material
For level-one waste material, level-one waste material refers to thickness >=1.0mm plate, coiled material, web-like side crops, casting volume header tailing, standing furnace
Empty block；
Parameter: solid-to-liquid ratio 3:7；
B. melting is carried out in smelting furnace, adds alloy after the completion of melting, and nitrogen is passed through after standing and refining agent carries out essence
Refining is skimmed after the completion of refining, composition adjustment and standing, examines ingredient qualified；
Parameter: the time of melting is 6 hours, and the temperature of melting is 730 DEG C, and the time stood after melting is 40 minutes, essence
The refining time 20 minutes, refining agent is made of following components in weight percent: potassium chloride 40%, aluminium sodium fluoride 28%, phenyl-hexafluoride
9%, calcium sulfide 15%, sodium sulphate 8%；Refining agent dosage 1kg/T aluminium.
C. the feeding holding furnace of molten aluminum made from step b is subjected to down furnace, starts injection refining machine to standing after the completion of furnace
Molten aluminum addition refining agent in furnace carries out double refining and rechecks ingredient, skims after refining every time, smart at regular intervals
Refining is primary, and the time refined every time is 20 minutes, and standing is skimmed after ten minutes, and refining in every 2 hours is primary；
Parameter: being 20 minutes to the time that molten aluminum in standing furnace refines every time, standing is skimmed after ten minutes, every 2 hours essences
Refining is primary, and 760 DEG C of refining temperature, refining agent is made of following components in weight percent: potassium chloride 45%, aluminium sodium fluoride 25%,
Phenyl-hexafluoride 10%, calcium sulfide 10%, sodium sulphate 10%；Refining agent dosage 2kg/T aluminium.
D. degasification is carried out to molten aluminum using 99.995% argon gas of purity, adjusts graphite rotator revolving speed, guarantees the hydrogeneous of molten aluminum
0.12ml/100gAl is measured, Ti progress crystal grain refinements are added；
Parameter: the revolving speed of graphite rotator is 500r/min, and the Ti silk speed of addition is 230mm/min.
E. molten aluminum made from step d is sent into before casting and rolling machine in the chest (preceding case) for carrying molten aluminum, into after bast mouth, warp
The Casting Roller of built-in recirculated water carries out casting, then coils into cold rolling blank by devices for taking-up；
Parameter: high control is in 0.30mm in Casting Roller grinding requirement, and in 0.015mm, roughness is middle high symmetry
1.0um, roll cylindricity reach 0.015mm；At 715 DEG C, preceding case liquid level 20mm rolls section length and is set as preceding box temperature degree control
60mm, roll casting speed control control cooling water pressure between 0.4MPa in 900mm/min.
(2) cold-rolling process
A. roll dressing parameter and rolling oil index；
Parameter: pressure roll roughness is 0.7um, and middle high 0mm, foil base passage gloss level of roll is 0.45um, middle height
0mm, rolling oil viscosity are 2.8mm2/ s, acid value 0.14mgKOH/g, roll oil content 8.5%, oil product transmitance by 112 DEG C of flash-point
95%.
B. pressure cold rolling is carried out to cold rolling coil using cold-rolling mill, rolling 4.0-4.2mm passage thickness moves back, and is rolled to 6 altogether
It is aluminum foil stock that passage, which rolls 0.24mm,.It is rolled to technique: cold rolling (7.0mm-4.0mm)- move back-cold rolling (4.0mm-2.1mm-
1.2mm)-rewinding trimming-cold rolling (1.2mm-0.68mm-0.4mm-0.24mm)-rewinding trimming-foil rolls
Rolling parameter is as shown in the table:
C. equal annealing process is used, and is depressed again after equal annealing process, drafts thickness, which uniformly successively decreases, rolls 0.24Mm；
Parameter: equal annealing process are as follows: be warming up to 550 DEG C for 0 hour and keep the temperature 20 hours, then be cooled to 520 DEG C of heat preservations 7 for 1 hour
Hour, it finally directly comes out of the stove air-cooled.
D. rewinding trimming uses 1.2mm and 0.24mm trimming twice, and total trimming amount is in 70mm.
Parameter: knife-edge gap amount 0.12mm, shear velocity 350m/min, uncoiling tension 35kn；
(3) foil roll process:
A. it carries out foil to aluminium foil using shaping roll and planishing roll to roll, foil adds ROLLING OIL during rolling, the number of pressure is 4
More than secondary, the thickness depressed every time, which accounts for, depresses the 45% of preceding overall thickness, and final pass is controlled 38%.Roughing rolls oil viscosity
2.5mm2/ s, acid value 0.1mgKOH/g, roll oil content 5.2%, oil product transmitance 97% by 88 DEG C of flash-point；Finish rolling ROLLING OIL is viscous
Degree is 2.2mm2/ s, acid value 0.03mgKOH/g, roll oil content 4.3%, oil product transmitance 97.5% by 82 DEG C of flash-point.
Rolling parameter is as shown in the table: by taking 0.012mm as an example
B. volume is closed, finish rolling mill product thickness is turned using N opening and closing volume.First by two together pairing be 2, third with
2 got togather close volume again and obtain 3, and so on can close volume 5.
Parameter: speed 650m/nim batches tensile stress 35N/mm2, flatten roller pressure 5kg/cm2；
C. final pass, 5 that coiling machine is closed out carry out pack rolling in finishing mill, are not exactly with the aluminium foil of roll contact
Two-sided dark aluminium foil products.Traditional handicraft final pass is only limited to 2 rollings, and production efficiency is low, and the present invention can be rolled into 5
Product, yield significantly improve；
D. it cuts, the aluminium foil after the completion of finish rolling is rolled is rewinded by cutting, two-sided dark aluminium foil is poured out, then upper horizontal point
The machine of cutting can be divided into the lithium battery finished product aluminium foil of different specifications.
Comparative example
Using a kind of Chinese patent application document " aluminum foil for lithium battery " (publication number: CN105018799A) effect example
The technique of 1-5 prepares battery foil.
The performance test of tensile strength and elongation percentage, and test lead are carried out to aluminium foil made from embodiment 1-3 and comparative example
Face quality, foil face band oil, foil face quality, dark face bright spot, template, primary production aluminium foil number situation, as a result as shown in the table.
As seen from the above table: (1) as the data of embodiment 1-3 and comparative example as it can be seen that aluminium foil made from embodiment 1-3 is in end face
Quality, foil face quality, in dark face bright spot substantially quite；And in tensile strength, the tensile strength of aluminium foil made from embodiment 1-3
It is higher than the tensile strength of comparative example by least 43.69%；In template situation, although template made from embodiment 1-3 and comparative example
All it is the micro- pine of two ribs, but opens the template of pack rolling obviously well very than comparative example two using 3 or more pack rolling in embodiment 1-3 technique
It is more；On once production aluminium foil number, the technique of embodiment 1-3 can disposably be produced more than aluminium foil 3 opens, and comparative example is only capable of
Production 2, it is seen that aluminium foil made from embodiment 1-3 is not only more excellent in quality, but also produces more, and production efficiency improves
50% or more.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high intensity lithium battery two-sided dark aluminium foil of 3003 alloys, which is characterized in that include following mass percent component:
Fe:0.4-0.5%, Si :≤0.10%, Cu:0.05-0.09%, Ti:0.01-0.025%, Mn:1.0-1.1%, Mg :≤
0.005%, Zn :≤0.005%, surplus Al.
2. the high intensity lithium battery two-sided dark aluminium foil of 3003 alloys according to claim 1, which is characterized in that comprising following
Mass percent component: Fe:0.46%, Si:0.08%, Cu:0.079%, Ti:0.023%, Mn:1.04%, Mg:
0.003%, Zn:0.004%, surplus Al.
3. the high intensity lithium battery two-sided dark aluminium foil of 3003 alloys according to claim 1, which is characterized in that described high-strength
Spending lithium battery with the two-sided dark aluminum foil thickness of 3003 alloys is 0.01-0.025mm, and tensile strength 258.64-270.21MPa prolongs
Stretching rate is 3.8-5.1%.
4. a kind of manufacturer of any one of -3 high-intensitive lithium battery two-sided dark aluminium foils of 3003 alloys according to claim 1
Method, which comprises the following steps:
(1) melting, casting-rolling technology
A. waste material is first put into smelting furnace, then puts into aluminium ingot and aluminum water, wherein aluminium ingot weight accounts for the 10-20% of total weight；
Parameter: solid-to-liquid ratio 3:7；
B. melting is carried out in smelting furnace, adds alloy after the completion of melting, nitrogen is passed through after standing and refining agent is refined, essence
It skims after the completion of refining, composition adjustment and standing examine ingredient qualified；
Parameter: the time of melting is 4-6 hours, and the temperature of melting is 730-760 DEG C, and the time stood after melting is 25-40 points
Clock, refining time 15-20 minutes；
C. the feeding holding furnace of molten aluminum made from step b is subjected to down furnace, starts injection refining machine in standing furnace after the completion of furnace
Molten aluminum addition refining agent carry out double refining and recheck ingredient, skim after refining every time, refine one at regular intervals
Secondary, the time refined every time is 15-20 minutes, is skimmed after standing 5-10 minutes, and every 1.5-2 hours refining is primary；
Parameter: it is 15-20 minutes to the time that molten aluminum in standing furnace refines every time, skims after standing 5-10 minutes, every 1.5-2 is small
When refining it is primary, 740-760 DEG C of refining temperature；
D. degasification is carried out to molten aluminum using argon gas, adjusts graphite rotator revolving speed, guarantees hydrogen content≤0.12ml/ of molten aluminum
100gAl adds Ti progress crystal grain refinements；
Parameter: the revolving speed of graphite rotator is 400-500r/min, and the Ti silk speed of addition is 200-230mm/min；
E. molten aluminum made from step d is sent into before casting and rolling machine in the chest (preceding case) for carrying molten aluminum, into after bast mouth, through built-in
The Casting Roller of recirculated water carries out casting, then coils into cold rolling blank by devices for taking-up；
Parameter: high control is in 0.25-0.30mm in Casting Roller grinding requirement, and middle high symmetry is in 0.005-0.015mm, roughness
For 0.8-1.0um, roll cylindricity reaches 0.005-0.015mm；Preceding box temperature degree control is at 700-715 DEG C, preceding case liquid level
10-20mm rolls section length and is set as 55-60mm, and roll casting speed control controls cooling water pressure in 0.3- in 800-900mm/min
Between 0.4MPa；
(2) cold-rolling process
A. roll dressing parameter and rolling oil index；
Parameter: pressure roll roughness is 0.7um, and middle high 0mm, foil base passage gloss level of roll is 0.45um, and middle high 0mm rolls
Liquefaction viscosity is 2.1-2.8mm2/ s, acid value≤0.15mgKOH/g, flash-point > 100 DEG C roll oil content 8-8.5%, and oil product is saturating
Cross rate >=95%；
B. pressure cold rolling is carried out to cold rolling coil using cold-rolling mill, rolling 4.0-4.2mm passage thickness moves back, and is rolled to 6 passages altogether
Rolling 0.24mm is aluminum foil stock；It is rolled to technique: cold rolling (7.0mm-4.0mm)- move back-cold rolling (4.0mm-2.1mm-1.2mm)-
Rewinding trimming-cold rolling (1.2mm-0.68mm-0.4mm-0.24mm)-rewinding trimming-foil rolls；
C. equal annealing process is used, and is depressed again after equal annealing process, drafts thickness, which uniformly successively decreases, rolls 0.24Mm；
Parameter: equal annealing process are as follows: be warming up to 550 DEG C of heat preservations 18-20 hours for 0 hour, then be cooled to 520 DEG C of guarantors for 0.5-1 hours
It is 6-7 hours warm, it finally directly comes out of the stove air-cooled；
D. rewinding trimming uses 1.2mm and 0.24mm trimming twice, and total trimming amount is in 60-70mm；
Parameter: knife-edge gap amount 0.1-0.12mm, shear velocity 300-350m/min, uncoiling tension 30-35kn；
(3) foil roll process:
A. foil is carried out to aluminium foil using shaping roll and planishing roll to roll, foil adds ROLLING OIL during rolling, the number of pressure be 4 times with
On, the thickness depressed every time accounts for the 30-45% for depressing preceding overall thickness, and final pass control rolls oil viscosity in 35-38%, roughing
For 1.8-2.5mm2/ s, acid value≤0.1mgKOH/g, flash-point > 85 DEG C roll oil content 5-5.5%, oil product transmitance >=97%；
It is 1.7-2.3mm that finish rolling, which rolls oil viscosity,2/ s, acid value≤0.03mgKOH/g, flash-point > 80 DEG C roll oil content < 5%, oil product
Transmitance >=97%；
B. close volume, finish rolling mill product thickness turned using N opening and closing volume, first by two together pairing be 2, third and get togather
2 close volume again and obtain 3, and so on can close volume N；
Parameter: speed 600-650m/nim batches tensile stress 30-35N/mm2, flatten roller pressure 3-5kg/c ㎡；
C. final pass, it is not exactly two-sided with the aluminium foil of roll contact that the N that coiling machine is closed out, which carry out pack rolling in finishing mill,
Dark aluminium foil products；
D. it cuts, the aluminium foil after the completion of finish rolling is rolled is rewinded by cutting, two-sided dark aluminium foil is poured out, then upper horizontal cutting machine
It can be divided into the lithium battery finished product aluminium foil of different specifications.
5. the manufacturing method of the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys according to claim 4, which is characterized in that
The waste material described in melting, casting-rolling technology is level-one waste material, and level-one waste material refers to that thickness >=1.0mm plate, coiled material, web-like are useless
Rim charge, casting volume header tailing, standing furnace empty block.
6. the manufacturing method of the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys according to claim 4, which is characterized in that
The refining agent described in melting, casting-rolling technology step b is made of following components in weight percent: potassium chloride 40-70%, aluminum fluoride
Sodium 15-30%, phenyl-hexafluoride 1-10%, calcium sulfide 5-15%, sodium sulphate 5-20%.
7. the manufacturing method of the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys according to claim 6, which is characterized in that
The refining agent dosage 1kg/T aluminium.
8. the manufacturing method of the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys according to claim 4, which is characterized in that
The refining agent described in melting, casting-rolling technology step c is made of following components in weight percent: potassium chloride 40-70%, aluminum fluoride
Sodium 15-30%, phenyl-hexafluoride 1-10%, calcium sulfide 5-15%, sodium sulphate 5-20%.
9. the manufacturing method of the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys according to claim 8, which is characterized in that
The refining agent dosage 2kg/T aluminium.
10. the manufacturing method of the high-intensitive lithium battery two-sided dark aluminium foil of 3003 alloys, feature exist according to claim 4
In the purity of the argon gas described in melting, casting-rolling technology step d is 99.995%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512009.5A CN109402458B (en) | 2018-12-11 | 2018-12-11 | 3003 alloy double-sided dark aluminum foil for high-strength lithium battery and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512009.5A CN109402458B (en) | 2018-12-11 | 2018-12-11 | 3003 alloy double-sided dark aluminum foil for high-strength lithium battery and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109402458A true CN109402458A (en) | 2019-03-01 |
| CN109402458B CN109402458B (en) | 2020-12-04 |
Family
ID=65458486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811512009.5A Active CN109402458B (en) | 2018-12-11 | 2018-12-11 | 3003 alloy double-sided dark aluminum foil for high-strength lithium battery and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109402458B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057912A (en) * | 2020-01-19 | 2020-04-24 | 天津忠旺铝业有限公司 | Process for reducing recrystallization temperature of 3003 aluminum alloy |
| CN111254320A (en) * | 2020-03-05 | 2020-06-09 | 江苏鼎胜新能源材料股份有限公司 | High-strength material for flexible connection of new energy power battery and manufacturing method thereof |
| CN112662916A (en) * | 2020-12-30 | 2021-04-16 | 郑州金辉新能源电子材料有限公司 | Aluminum foil for power battery and preparation process thereof |
| CN114405999A (en) * | 2021-12-16 | 2022-04-29 | 安徽中基电池箔科技有限公司 | Production process of high-elongation 1060 alloy battery aluminum foil |
| CN114525432A (en) * | 2022-01-08 | 2022-05-24 | 浙江佑丰新材料股份有限公司 | High-strength and high-extension aluminum foil for new energy battery and manufacturing method thereof |
| CN115233045A (en) * | 2022-08-05 | 2022-10-25 | 厦门厦顺铝箔有限公司 | Aluminum foil for high-manganese ultrahigh-strength battery and production process |
| CN115247239A (en) * | 2021-12-30 | 2022-10-28 | 兰州理工大学 | Aluminum alloy strip for power battery shell and production method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014055359A (en) * | 2013-10-30 | 2014-03-27 | Kobe Steel Ltd | Method of manufacturing aluminum alloy hard foil for battery collector |
| CN107012370A (en) * | 2017-04-14 | 2017-08-04 | 邹平德利科技板材有限公司 | High-performance 1230A alloy lithium ion battery aluminium foils and preparation method thereof |
| CN108118195A (en) * | 2017-12-07 | 2018-06-05 | 广西百色兴和铝业有限公司 | Novel antibacterial eats aluminium foil |
-
2018
- 2018-12-11 CN CN201811512009.5A patent/CN109402458B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014055359A (en) * | 2013-10-30 | 2014-03-27 | Kobe Steel Ltd | Method of manufacturing aluminum alloy hard foil for battery collector |
| JP5667681B2 (en) * | 2013-10-30 | 2015-02-12 | 株式会社神戸製鋼所 | Method for producing aluminum alloy hard foil for battery current collector |
| CN107012370A (en) * | 2017-04-14 | 2017-08-04 | 邹平德利科技板材有限公司 | High-performance 1230A alloy lithium ion battery aluminium foils and preparation method thereof |
| CN108118195A (en) * | 2017-12-07 | 2018-06-05 | 广西百色兴和铝业有限公司 | Novel antibacterial eats aluminium foil |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057912A (en) * | 2020-01-19 | 2020-04-24 | 天津忠旺铝业有限公司 | Process for reducing recrystallization temperature of 3003 aluminum alloy |
| CN111254320A (en) * | 2020-03-05 | 2020-06-09 | 江苏鼎胜新能源材料股份有限公司 | High-strength material for flexible connection of new energy power battery and manufacturing method thereof |
| CN111254320B (en) * | 2020-03-05 | 2022-03-15 | 江苏鼎胜新能源材料股份有限公司 | High-strength material for flexible connection of new energy power battery and manufacturing method thereof |
| CN112662916A (en) * | 2020-12-30 | 2021-04-16 | 郑州金辉新能源电子材料有限公司 | Aluminum foil for power battery and preparation process thereof |
| CN114405999A (en) * | 2021-12-16 | 2022-04-29 | 安徽中基电池箔科技有限公司 | Production process of high-elongation 1060 alloy battery aluminum foil |
| CN114405999B (en) * | 2021-12-16 | 2022-11-25 | 安徽中基电池箔科技有限公司 | Production process of 1060 alloy battery aluminum foil with high elongation |
| CN115247239A (en) * | 2021-12-30 | 2022-10-28 | 兰州理工大学 | Aluminum alloy strip for power battery shell and production method thereof |
| CN115247239B (en) * | 2021-12-30 | 2023-05-26 | 兰州理工大学 | Aluminum alloy strip for power battery shell and production method thereof |
| CN114525432A (en) * | 2022-01-08 | 2022-05-24 | 浙江佑丰新材料股份有限公司 | High-strength and high-extension aluminum foil for new energy battery and manufacturing method thereof |
| CN115233045A (en) * | 2022-08-05 | 2022-10-25 | 厦门厦顺铝箔有限公司 | Aluminum foil for high-manganese ultrahigh-strength battery and production process |
| CN115233045B (en) * | 2022-08-05 | 2023-10-13 | 厦门厦顺铝箔有限公司 | Production process of aluminum foil for high-manganese ultrahigh-strength battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109402458B (en) | 2020-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109402458A (en) | High-intensitive the lithium battery two-sided dark aluminium foil of 3003 alloys and its manufacturing method | |
| CN107217175B (en) | A kind of battery high-performance aluminium foil and its production method | |
| CN104775060B (en) | A kind of production of aluminum alloy continuous casting tandem rolling base and heat treatment method | |
| CN109988948B (en) | 5182-O state aluminum alloy plate for automobile inner plate and production method thereof | |
| CN101066576B (en) | Aluminium foil base material producing process | |
| CN109972001B (en) | 1100-O state aluminum alloy strip for capacitor shell and production method thereof | |
| CN111074110B (en) | Production method of aluminum and aluminum alloy plate strip for new energy power battery case | |
| CN103276256B (en) | A kind of 8150 alloy vessel paper tinsel aluminum foil stock and production technique thereof | |
| CN102658452B (en) | Processing method of copper strip used for copper steel composites | |
| CN106119615B (en) | A kind of new energy resource power battery shell aluminium alloy strips and preparation method thereof | |
| CN107012370B (en) | High-performance 1230A alloy lithium ion battery aluminium foils and preparation method thereof | |
| CN102899531B (en) | Double zero aluminum foil with thickness of 0.004-0.0048 mm, and preparation method thereof | |
| CN106811628B (en) | A kind of method of casting and roll process production power battery case aluminium strip | |
| CN103695723A (en) | 8021 alloy double-zero aluminum foil and production technology thereof | |
| CN101956101A (en) | Aluminum foil and production method thereof | |
| CN106319292A (en) | Production method of aluminum plates and aluminum strips for cosmetic mirror surface aluminum caps | |
| CN102581039A (en) | Method for rolling pure titanium strip | |
| CN102191414B (en) | Production method of aluminum alloy cable strap material | |
| CN107022706A (en) | A kind of preparation method of low lithium high-ductility high strength magnesium lithium alloy and its sheet material | |
| CN108220692A (en) | The preparation method of drawing aluminum alloy plate materials is thinned in a kind of high intensity | |
| CN102352459A (en) | Preparation method of magnesium alloy strip for cell phone shell | |
| CN109402456B (en) | Double-sided dark battery foil and preparation method thereof | |
| CN108165832A (en) | A kind of alloying high-performance aseptic packaging material double-zero aluminum foil and its production technology | |
| CN111254322A (en) | Preparation method of aluminum foil material for thinning double-sided photocell tab | |
| CN110373560B (en) | Method for producing high-performance aluminum alloy plate strip by continuous casting and rolling of thin slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |