CN107946544A - One kind penetrates aluminium foil manufacturing process - Google Patents
One kind penetrates aluminium foil manufacturing process Download PDFInfo
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- CN107946544A CN107946544A CN201711158238.7A CN201711158238A CN107946544A CN 107946544 A CN107946544 A CN 107946544A CN 201711158238 A CN201711158238 A CN 201711158238A CN 107946544 A CN107946544 A CN 107946544A
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- Prior art keywords
- aluminium foil
- manufacturing process
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-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/061—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/065—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors sulfur-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention discloses one kind to penetrate aluminium foil manufacturing process, the present invention needs to use a large amount of binding agents (the non-conductive material of macromolecule) to solve existing aluminium foil and positive electrode conjugation, increase positive electrode resistance, and combine force difference, because resistance is big during the long-term discharge and recharge of lithium ion battery, produce temperature height and seriously affect service life, and after usage time length aluminium foil surface positive electrode the problem of coming off etc. present situation and provide and a kind of be first roughened in aluminium foil surface, again perforated material is carried out with laser, above performance can be improved after use, greatly improve lithium ion battery service life.
Description
Technical field
The present invention relates to a kind of aluminium foil corrosion line apparatus, and aluminium foil manufacturing process is penetrated more particularly, to one kind.
Background technology
It is known, existing lithium ion cell positive aluminium foil, generally using thickness in 0.015mm~0.022mm aluminium foils, aluminium
The processing of paper tinsel surface free carries out positive electrode (lithium perchlorate, LiFePO4 etc.) coating, because aluminium foil surface is smooth, in order to increase aluminium
Paper tinsel and positive electrode conjugation need to use a large amount of binding agents (the non-conductive material of macromolecule), increase positive electrode resistance, and combine
Force difference, because resistance is big during the long-term discharge and recharge of lithium ion battery, produces temperature height and seriously affects service life, and usage time is grown
Aluminium foil surface positive electrode comes off afterwards.
The content of the invention
The present invention needs to use a large amount of binding agents (non-conductive thing of macromolecule to solve existing aluminium foil and positive electrode conjugation
Matter), increase positive electrode resistance, and combine force difference, because resistance is big during the long-term discharge and recharge of lithium ion battery, produce the high serious shadow of temperature
Ring service life, and after usage time length aluminium foil surface positive electrode the problem of coming off etc. present situation and provide one kind in aluminium foil table
Face is first roughened, then carries out perforated material with laser, can improve after use and not measure above, greatly improve lithium ion battery and use the longevity
Life.
The present invention is that concrete technical scheme is used by solving above-mentioned technical problem：One kind penetrates aluminium foil manufacturing process,
Include the following steps：
Step 1：The aluminium foil oil removing stage, particularly by aluminium foil concentration be 0.2-1.0% sodium hydroxide NaOH, 40
The oil removing of 5-20 seconds is carried out under conditions of~50 DEG C to aluminium foil；
Step 2：Aluminium foil is roughened the stage, and the aluminium foil after particularly step 1 is handled is in the hydrochloric acid that concentration is 8%~12%
HCl temperature is roughened 5-20 seconds under conditions of being 90~95 DEG C；
Step 3：The aluminium foil after step 2 processing is toasted under conditions of 250 DEG C~400 DEG C；
Step 4：In the laser beam perforation stage, the aluminium foil after particularly step 3 is handled is under normal temperature, according to default aperture
Size and hole distribution density carry out laser beam perforation；
Step 5：Wash phase particularly step 4 is handled after aluminium foil temperature be 80~85 DEG C under conditions of, it is dense
Spend to carry out reaction 10-30 seconds under the action of 8%~12% hydrochloric acid HCl and corrosion inhibiter；
Step 6：Secondary baking is carried out to the aluminium foil after step 4 processing under conditions of 250 DEG C~300 DEG C；
Step 7：Winding；
Step 8：Shipment is coated with.
Further, the aluminium foil oil removing stage, particularly by aluminium foil in the sodium hydroxide that concentration is 0.5%
NaOH, carries out aluminium foil under conditions of 40~50 DEG C the oil removing of 10 seconds.
Further, the described aluminium foil roughening stage, aluminium foil after particularly step 1 is handled concentration for 8%~
12% hydrochloric acid HCl temperature is roughened 10 seconds under conditions of being 90~95 DEG C.
Further, the laser beam perforation stage, the aluminium foil after particularly step 3 is handled is under normal temperature, root
Laser beam perforation is carried out according to design pore size and hole distribution density, aperture is 0.01~0.10mm；
Further, the corrosion inhibiter is thiocarbamide and the mixture of benzotriazole.
Further, the concentration of the corrosion inhibiter is 0.1%；Corrosion inhibiter is directly added into hydrochloric acid, during use
Directly it is watered, circulation stirring about 60 minutes, ensures that the valid density of corrosion inhibiter cannot be below 0.1%.
The beneficial effects of the invention are as follows：
(1) the roughening of current collector aluminum foil surface makes anode material of lithium battery be combined when being coated with collector closer, while can subtract
Few consumption of binder can reduce lithium battery anode resistance；
(2) collection liquid surface is porous can shorten lithium ion range ability in charging and discharging lithium battery, reduce energy expenditure, increase
Add charging and discharging lithium battery number, improve service life of lithium battery.
Brief description of the drawings
Fig. 1 is the aluminium foil structure schematic diagram of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description:
One kind penetrates aluminium foil manufacturing process, includes the following steps：
Step 1：The aluminium foil oil removing stage, particularly by aluminium foil concentration be 0.2-1.0% sodium hydroxide NaOH, 40
The oil removing of 5-20 seconds is carried out under conditions of~50 DEG C to aluminium foil；
Step 2：Aluminium foil is roughened the stage, and the aluminium foil after particularly step 1 is handled is in the hydrochloric acid that concentration is 8%~12%
HCl temperature is roughened 5-20 seconds under conditions of being 90~95 DEG C；
Step 3：The aluminium foil after step 2 processing is toasted under conditions of 250 DEG C~400 DEG C；
Step 4：In the laser beam perforation stage, the aluminium foil after particularly step 3 is handled is under normal temperature, according to default aperture
Size and hole distribution density carry out laser beam perforation；
Step 5：Wash phase particularly step 4 is handled after aluminium foil temperature be 80~85 DEG C under conditions of, it is dense
Spend to carry out reaction 10-30 seconds under the action of 8%~12% hydrochloric acid HCl and corrosion inhibiter；
Step 6：Secondary baking is carried out to the aluminium foil after step 4 processing under conditions of 250 DEG C~300 DEG C；
Step 7：Winding；
Step 8：Shipment is coated with.
Further, the aluminium foil oil removing stage, particularly by aluminium foil in the sodium hydroxide that concentration is 0.5%
NaOH, carries out aluminium foil under conditions of 40~50 DEG C the oil removing of 10 seconds.
Further, the described aluminium foil roughening stage, aluminium foil after particularly step 1 is handled concentration for 8%~
12% hydrochloric acid HCl temperature is roughened 10 seconds under conditions of being 90~95 DEG C.
Further, the laser beam perforation stage, the aluminium foil after particularly step 3 is handled is under normal temperature, root
Laser beam perforation is carried out according to design pore size and hole distribution density, aperture is 0.01~0.10mm；
Further, the corrosion inhibiter is thiocarbamide and the mixture of benzotriazole.
Further, the concentration of the corrosion inhibiter is 0.1%；Corrosion inhibiter is directly added into hydrochloric acid, during use
Directly it is watered, circulation stirring about 60 minutes, ensures that the valid density of corrosion inhibiter cannot be below 0.1%.
Basic principle, main feature and the advantages of the present invention of above content and structure the invention has been described product, one's own profession
The technical staff of industry should be recognized that.Merely illustrating the principles of the invention described in examples detailed above and specification, is not departing from this
On the premise of spirit and scope, various changes and modifications of the present invention are possible, these changes and improvements belong to requirement and protect
Within the scope of the invention of shield.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (6)
1. one kind penetrates aluminium foil manufacturing process, it is characterised in that：Include the following steps：
Step 1：The aluminium foil oil removing stage, particularly by aluminium foil concentration be 0.2-1.0% sodium hydroxide NaOH, 40~50
The oil removing of 5-20 seconds is carried out under conditions of DEG C to aluminium foil；
Step 2：Aluminium foil is roughened the stage, and the aluminium foil after particularly step 1 is handled is in the hydrochloric acid HCl that concentration is 8%~12%
Temperature is roughened 5-20 seconds under conditions of being 90~95 DEG C；
Step 3：The aluminium foil after step 2 processing is toasted under conditions of 250 DEG C~400 DEG C；
Step 4：In the laser beam perforation stage, the aluminium foil after particularly step 3 is handled is under normal temperature, according to default pore size
Laser beam perforation is carried out with hole distribution density；
Step 5：Wash phase particularly step 4 is handled after aluminium foil temperature be 80~85 DEG C under conditions of, concentration is
Reaction 10-30 seconds is carried out under the action of 8%~12% hydrochloric acid HCl and corrosion inhibiter；
Step 6：Secondary baking is carried out to the aluminium foil after step 4 processing under conditions of 250 DEG C~300 DEG C；
Step 7：Winding；
Step 8：Shipment is coated with.
2. one kind according to claim 1 penetrates aluminium foil manufacturing process, it is characterised in that：The aluminium foil oil removing stage,
It is particularly 0.5% sodium hydroxide NaOH in concentration by aluminium foil, aluminium foil is carried out 10 seconds under conditions of 40~50 DEG C
Oil removing.
3. one kind according to claim 1 penetrates aluminium foil manufacturing process, it is characterised in that：The aluminium foil roughening stage,
Aluminium foil after particularly step 1 is handled is thick under conditions of being 90~95 DEG C in the hydrochloric acid HCl temperature that concentration is 8%~12%
Change 10 seconds.
4. one kind according to claim 1 penetrates aluminium foil manufacturing process, it is characterised in that：The laser beam perforation stage,
Aluminium foil after particularly step 3 is handled carries out laser under normal temperature, according to design pore size and hole distribution density
Perforation, aperture is 0.01~0.10mm.
5. one kind according to claim 1 penetrates aluminium foil manufacturing process, it is characterised in that：The corrosion inhibiter for thiocarbamide and
The mixture of benzotriazole.
6. one kind according to claim 5 penetrates aluminium foil manufacturing process, it is characterised in that：The use of the corrosion inhibiter is dense
Spend for 0.1%；Corrosion inhibiter is directly added into hydrochloric acid, when use is directly watered, circulation stirring about 60 minutes, ensures inhibition
The valid density of agent cannot be below 0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158238.7A CN107946544A (en) | 2017-11-20 | 2017-11-20 | One kind penetrates aluminium foil manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158238.7A CN107946544A (en) | 2017-11-20 | 2017-11-20 | One kind penetrates aluminium foil manufacturing process |
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| Publication Number | Publication Date |
|---|---|
| CN107946544A true CN107946544A (en) | 2018-04-20 |
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ID=61930337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711158238.7A Pending CN107946544A (en) | 2017-11-20 | 2017-11-20 | One kind penetrates aluminium foil manufacturing process |
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| Country | Link |
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| CN (1) | CN107946544A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556532A (en) * | 2018-06-01 | 2019-12-10 | 中能中科（天津）新能源科技有限公司 | reticular lithium material and preparation method and application thereof |
| CN112743243A (en) * | 2021-01-07 | 2021-05-04 | 中国科学院力学研究所 | Preparation method and device of surface roughened and perforated current collector foil |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588673A (en) * | 2004-09-03 | 2005-03-02 | 深圳市创明电池技术有限公司 | Method for producing liqium lithium ion cell for increasing product consistency and circulation life |
| CN101609747A (en) * | 2009-07-07 | 2009-12-23 | 吴江飞乐天和电子材料有限公司 | Production method of super capacitor electrode foil |
| CN103972513A (en) * | 2013-02-06 | 2014-08-06 | 永箔科技股份有限公司 | Porous current collector metal material continuous processing method |
| CN105140039A (en) * | 2015-09-07 | 2015-12-09 | 江苏国瑞科技股份有限公司 | Pre-processing technology of aluminum foil corrosion |
| CN106654289A (en) * | 2016-12-29 | 2017-05-10 | 深圳先进技术研究院 | Porous aluminum-foil cathode, preparation method of porous aluminum-foil cathode and lithium secondary battery |
| CN107346831A (en) * | 2016-05-04 | 2017-11-14 | 上海奇谋能源技术开发有限公司 | A kind of method for improving lithium ion battery service life |
-
2017
- 2017-11-20 CN CN201711158238.7A patent/CN107946544A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588673A (en) * | 2004-09-03 | 2005-03-02 | 深圳市创明电池技术有限公司 | Method for producing liqium lithium ion cell for increasing product consistency and circulation life |
| CN101609747A (en) * | 2009-07-07 | 2009-12-23 | 吴江飞乐天和电子材料有限公司 | Production method of super capacitor electrode foil |
| CN103972513A (en) * | 2013-02-06 | 2014-08-06 | 永箔科技股份有限公司 | Porous current collector metal material continuous processing method |
| CN105140039A (en) * | 2015-09-07 | 2015-12-09 | 江苏国瑞科技股份有限公司 | Pre-processing technology of aluminum foil corrosion |
| CN107346831A (en) * | 2016-05-04 | 2017-11-14 | 上海奇谋能源技术开发有限公司 | A kind of method for improving lithium ion battery service life |
| CN106654289A (en) * | 2016-12-29 | 2017-05-10 | 深圳先进技术研究院 | Porous aluminum-foil cathode, preparation method of porous aluminum-foil cathode and lithium secondary battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556532A (en) * | 2018-06-01 | 2019-12-10 | 中能中科（天津）新能源科技有限公司 | reticular lithium material and preparation method and application thereof |
| CN112743243A (en) * | 2021-01-07 | 2021-05-04 | 中国科学院力学研究所 | Preparation method and device of surface roughened and perforated current collector foil |
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Application publication date: 20180420 |