CN112296087A - Method for improving surface dyne value of battery foil - Google Patents
Method for improving surface dyne value of battery foil Download PDFInfo
- Publication number
- CN112296087A CN112296087A CN202011072731.9A CN202011072731A CN112296087A CN 112296087 A CN112296087 A CN 112296087A CN 202011072731 A CN202011072731 A CN 202011072731A CN 112296087 A CN112296087 A CN 112296087A
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- China
- Prior art keywords
- rolling
- roller
- method comprises
- less
- dyne value
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000011888 foil Substances 0.000 title claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims abstract description 75
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000004321 preservation Methods 0.000 claims abstract description 13
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 230000002708 enhancing effect Effects 0.000 claims abstract description 3
- 239000000654 additive Substances 0.000 claims description 15
- 230000000996 additive effect Effects 0.000 claims description 15
- 239000002199 base oil Substances 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000084 colloidal system Substances 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 5
- 150000002632 lipids Chemical class 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000010008 shearing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- CZFMLDUNXATLOW-XKZIYDEJSA-N (5z)-5-[[3-(2-hydroxyethoxymethyl)thiophen-2-yl]methylidene]-10-methoxy-2,2,4-trimethyl-1h-chromeno[3,4-f]quinolin-9-ol Chemical compound C1=CC=2NC(C)(C)C=C(C)C=2C2=C1C=1C(OC)=C(O)C=CC=1O\C2=C/C=1SC=CC=1COCCO CZFMLDUNXATLOW-XKZIYDEJSA-N 0.000 description 1
- QQGISFDJEJMKIL-JAIQZWGSSA-N (5z)-5-[[3-(hydroxymethyl)thiophen-2-yl]methylidene]-10-methoxy-2,2,4-trimethyl-1h-chromeno[3,4-f]quinolin-9-ol Chemical compound C1=CC=2NC(C)(C)C=C(C)C=2C2=C1C=1C(OC)=C(O)C=CC=1O\C2=C/C=1SC=CC=1CO QQGISFDJEJMKIL-JAIQZWGSSA-N 0.000 description 1
- SEGBQNJGOCXIGC-FHERZECASA-N benzyl n-[(2s)-1-[(4-hydroxyoxolan-3-yl)amino]-4-methyl-1-oxopentan-2-yl]carbamate Chemical compound N([C@@H](CC(C)C)C(=O)NC1C(COC1)O)C(=O)OCC1=CC=CC=C1 SEGBQNJGOCXIGC-FHERZECASA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides a method for improving a surface dyne value of a battery foil, and mainly relates to the technical field of surface dyne values of battery foils. A method of enhancing the surface dyne value of a battery foil, comprising the steps of: rolling, material heat preservation, slitting and baking, corona of a thin shear and packaging of finished products, wherein the rolling comprises rough rolling, medium rolling and finish rolling. The invention has the beneficial effects that: the invention can improve the surface dyne value of the battery foil, further improve the surface performance of the battery and improve the product quality and market competitiveness.
Description
Technical Field
The invention mainly relates to the technical field of the surface dyne value of a battery foil, in particular to a method for improving the surface dyne value of the battery foil.
Background
With the continuous development of new energy automobiles, the battery industry which takes aluminum foil as a current collector of a positive electrode material is developed vigorously, the battery foil also becomes a product with higher added value in the aluminum processing industry, the surface dyne value of the battery foil is taken as an important index influencing the coating of the battery material, and at present, the dyne value problem of most aluminum foil factories at home and abroad is low, so that the product quality is low, the aluminum foil cannot enter the high-end power battery foil market all the time, and the development of high-end batteries is influenced.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a method for improving the surface dyne value of a battery foil, and the method can improve the surface dyne value of the battery foil, further improve the surface performance of the battery, improve the product quality and market competitiveness, open the high-end power battery foil market and bring convenience to the development of domestic high-end batteries.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a method of enhancing the surface dyne value of a battery foil, comprising the steps of: rolling, material heat preservation, slitting and baking, corona of a thin shear and packaging of finished products, wherein the rolling comprises rough rolling, medium rolling and finish rolling.
Further, oil control during rough rolling: 2-3% of alcohol, 7-9% of lipid, less than or equal to 0.1% of acid, 82# base oil with the viscosity less than 2mm2/s and the colloid less than 1000mg/100 ml; oil product control during medium rolling: 1.5-3% of alcohol, 11-15% of fat, 82# base oil with viscosity less than 1.95mm2/s and colloid
<800mg/100 ml; oil product control during finish rolling: 1.5-3% of alcohol, 11-15% of fat, 82# base oil, 2/s with viscosity less than 1.95mm and colloid less than 800mg/100 ml.
Further, in the rolling process, the roughness of a roller of a finished pass is 0.07-0.09 mu m; and the roller grinding adopts reverse grinding.
Further, in the rolling process, the rough rolling temperature is 45-55 ℃, the middle rolling temperature is 45-55 ℃, and the finish rolling temperature is 50-60 ℃.
Further, in the rolling step, the upper limit of the roughness of the roller is controlled, and the roughness of the rough rolling roller, the middle rolling roller and the finish rolling roller forms a drop height.
Further, in the material heat preservation step, the material heat preservation temperature is 60-80 ℃, the additive is an acid-free, high-fat and low-alcohol additive, and the total concentration of the additive accounts for 8-16%.
Further, in the slitting and baking step, the foil surface is baked by a baking lamp at 300-400 ℃, and the slitting speed is 300 m/min.
Further, in the thin shear corona step, in order to increase the dyne value, corona is carried out for multiple times until the dyne value reaches a proper value.
Further, in the step of packaging finished products, the finished products are packaged in vacuum within 8 hours after the thin shears are off-line, and the off-line dyne value of the finished products can be 34-35 according to the method.
Compared with the prior art, the invention has the beneficial effects that:
the invention can improve the surface dyne value of the battery foil, further improve the surface performance of the battery, improve the product quality and the market competitiveness, open the high-end power battery foil market and bring convenience to the development of domestic high-end batteries.
Detailed Description
The present invention will be further illustrated by reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Example 1:
oil product control during rough rolling: 2% of alcohol, 7% of lipid, less than or equal to 0.1% of acid, 82# base oil, 2/s with the viscosity less than 2mm and the colloid less than 1000mg/100 ml; oil product control during medium rolling: 1.5% of alcohol, 11% of fat, 82# base oil, less than 1.95mm2/s of viscosity and less than 800mg/100ml of colloid; oil product control during finish rolling: alcohol content 1.5%, fat content 11%, 82# base oil, viscosity < 1.95mm2/s, gum <800mg/100 ml.
In rolling, the roughness of a roller of a finished product pass is 0.07 mu m; and the roller grinding adopts reverse grinding.
In the rolling process, the rough rolling temperature is 45 ℃, the medium rolling temperature is 45 ℃ and the finish rolling temperature is 50 ℃.
During rolling, the upper limit of the roughness of the roller is controlled, and the roughness of the rough rolling roller, the middle rolling roller and the finish rolling roller forms a drop height.
In the material heat preservation, the material heat preservation temperature is 60 ℃, the additive adopts an acid-free, high-fat and low-alcohol additive, and the total concentration of the additive accounts for 8 percent.
In the slitting and baking process, the foil surface is baked by a baking lamp at 300-400 ℃, and the slitting speed is 300 m/min.
In the thin shear corona, corona is performed a plurality of times until the dyne value reaches a proper value.
In the finished product packaging, the finished product is vacuum-packaged within 8 hours after the thin shearing machine is off-line, and the off-line dyne value of the finished product can be realized by the method.
Example 2:
oil product control during rough rolling: 2.5 percent of alcohol, 8 percent of grease, less than or equal to 0.1 percent of acid, 82# base oil, 2/s with the viscosity less than 2mm and the colloid less than 1000mg/100 ml; oil product control during medium rolling: 2.5 percent of alcohol, 13 percent of fat, 82# base oil, 2/s with the viscosity less than 1.95mm and the colloid less than 800mg/100 ml; oil product control during finish rolling: alcohol content 2.5%, fat content 13%, 82# base oil, viscosity < 1.95mm2/s, gum <800mg/100 ml.
In rolling, the roughness of a roller of a finished product pass is 0.08 mu m; and the roller grinding adopts reverse grinding.
In the rolling process, the rough rolling temperature is 50 ℃, the intermediate rolling temperature is 50 ℃ and the finish rolling temperature is 55 ℃.
During rolling, the upper limit of the roughness of the roller is controlled, and the roughness of the rough rolling roller, the middle rolling roller and the finish rolling roller forms a drop height.
In the material heat preservation, the material heat preservation temperature is 70 ℃, the additive adopts an acid-free, high-fat and low-alcohol additive, and the total concentration of the additive accounts for 12 percent.
In the slitting and baking process, the foil surface is baked by a 350 ℃ baking lamp at a slitting speed of 300 m/min.
In the thin shear corona, corona is performed a plurality of times until the dyne value reaches a proper value.
In the finished product packaging, the finished product is vacuum-packaged within 8 hours after the thin shearing machine is off-line, and the off-line dyne value of the finished product can be 35 according to the method.
Example 3:
oil product control during rough rolling: alcohol content of 3%, lipid content of 9%, acid content of less than or equal to 0.1%, 82# base oil, viscosity of less than 2mm2/s, colloid of less than 1000mg/100 ml; oil product control during medium rolling: alcohol content 3%, lipid content 15%, 82# base oil, viscosity < 1.95mm2/s, gum <800mg/100 ml; oil product control during finish rolling: alcohol content 3%, fat content 15%, 82# base oil, viscosity < 1.95mm2/s, gum <800mg/100 ml.
In rolling, the roughness of a roller of a finished product pass is 0.09 mu m; and the roller grinding adopts reverse grinding.
In the rolling process, the rough rolling temperature is 55 ℃, the intermediate rolling temperature is 55 ℃, and the finish rolling temperature is 60 ℃.
During rolling, the upper limit of the roughness of the roller is controlled, and the roughness of the rough rolling roller, the middle rolling roller and the finish rolling roller forms a drop height.
In the material heat preservation, the material heat preservation temperature is 80 ℃, the additive adopts an acid-free, high-fat and low-alcohol additive, and the total concentration of the additive accounts for 16 percent.
In the slitting and baking process, the foil surface is baked by a baking lamp at 400 ℃ and the slitting speed is 300 m/min.
In the thin shear corona, corona is performed a plurality of times until the dyne value reaches a proper value.
In the finished product packaging, the finished product is vacuum-packaged within 8 hours after the thin shearing machine is off-line, and the off-line dyne value of the finished product can be 35 according to the method.
The invention can improve the surface dyne value of the battery foil, further improve the surface performance of the battery, improve the product quality and the market competitiveness, open the high-end power battery foil market and bring convenience to the development of domestic high-end batteries.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A method of enhancing the dyne value of a battery foil surface, characterized by: the method comprises the following steps: rolling, material heat preservation, slitting and baking, corona of a thin shear and packaging of finished products, wherein the rolling comprises rough rolling, medium rolling and finish rolling.
2. The method of claim 1, wherein the method comprises: oil product control during rough rolling: 2-3% of alcohol, 7-9% of lipid, less than or equal to 0.1% of acid, 82# base oil with the viscosity less than 2mm2/s and the colloid less than 1000mg/100 ml; oil product control during medium rolling: 1.5-3% of alcohol, 11-15% of fat, 82# base oil, 2/s with the viscosity less than 1.95mm and the colloid less than 800mg/100 ml; oil product control during finish rolling: 1.5-3% of alcohol, 11-15% of fat, 82# base oil, 2/s with viscosity less than 1.95mm and colloid less than 800mg/100 ml.
3. The method of claim 1, wherein the method comprises: in the rolling process, the roughness of a roller of a finished product pass is 0.07-0.09 mu m; and the roller grinding adopts reverse grinding.
4. The method of claim 1, wherein the method comprises: in the rolling process, the rough rolling temperature is 45-55 ℃, the middle rolling temperature is 45-55 ℃, and the finish rolling temperature is 50-60 ℃.
5. The method of claim 1, wherein the method comprises: in the rolling step, the upper limit of the roughness of the roller is controlled, and the roughness of the rough rolling roller, the middle rolling roller and the finish rolling roller forms a fall.
6. The method of claim 1, wherein the method comprises: in the material heat preservation step, the material heat preservation temperature is 60-80 ℃, the additive is an acid-free, high-fat and low-alcohol additive, and the total concentration of the additive accounts for 8-16%.
7. The method of claim 1, wherein the method comprises: in the slitting and baking step, the foil surface is baked by a baking lamp at 300-400 ℃, and the slitting speed is 300 m/min.
8. The method of claim 1, wherein the method comprises: in the thin shear corona step, in order to increase the dyne value, corona is carried out for multiple times until the dyne value reaches a proper value.
9. The method of claim 1, wherein the method comprises: in the step of packaging finished products, the finished products are packaged in vacuum within 8 hours after the thin shears are off-line, and the off-line dyne value of the finished products is 34-35 according to the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011072731.9A CN112296087A (en) | 2020-10-09 | 2020-10-09 | Method for improving surface dyne value of battery foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011072731.9A CN112296087A (en) | 2020-10-09 | 2020-10-09 | Method for improving surface dyne value of battery foil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112296087A true CN112296087A (en) | 2021-02-02 |
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|---|---|---|---|
| CN202011072731.9A Pending CN112296087A (en) | 2020-10-09 | 2020-10-09 | Method for improving surface dyne value of battery foil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338261A (en) * | 2022-06-22 | 2022-11-15 | 浙江桐昆新材料研究院有限公司 | Production method for improving surface dyne value of battery foil |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10330873A (en) * | 1997-06-04 | 1998-12-15 | Furukawa Electric Co Ltd:The | Aluminum foil for electrolytic capacitor electrode |
| JP2000309836A (en) * | 1999-04-26 | 2000-11-07 | Nippon Foil Mfg Co Ltd | Aluminum foil for electrolytic capacitor anode and its production |
| CN106623426A (en) * | 2016-10-21 | 2017-05-10 | 江苏鼎胜新能源材料股份有限公司 | Method for improving surface wetting tension of aluminum foil through multi-stage corona treatment |
| CN108315606A (en) * | 2018-05-11 | 2018-07-24 | 江苏常铝铝业股份有限公司 | A kind of lithium battery 1100 alloy aluminium foils and its manufacturing method |
| CN110218912A (en) * | 2019-06-25 | 2019-09-10 | 江苏大亚铝业有限公司 | Lithium battery 12 μm of two-sided light high performance A1235 alloy aluminium foils and its preparation process |
| CN110592501A (en) * | 2019-09-05 | 2019-12-20 | 江苏大亚铝业有限公司 | Aluminum foil for lithium battery aluminum plastic film and preparation process thereof |
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-
2020
- 2020-10-09 CN CN202011072731.9A patent/CN112296087A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| JPH10330873A (en) * | 1997-06-04 | 1998-12-15 | Furukawa Electric Co Ltd:The | Aluminum foil for electrolytic capacitor electrode |
| JP2000309836A (en) * | 1999-04-26 | 2000-11-07 | Nippon Foil Mfg Co Ltd | Aluminum foil for electrolytic capacitor anode and its production |
| CN106623426A (en) * | 2016-10-21 | 2017-05-10 | 江苏鼎胜新能源材料股份有限公司 | Method for improving surface wetting tension of aluminum foil through multi-stage corona treatment |
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| CN110218912A (en) * | 2019-06-25 | 2019-09-10 | 江苏大亚铝业有限公司 | Lithium battery 12 μm of two-sided light high performance A1235 alloy aluminium foils and its preparation process |
| CN110592501A (en) * | 2019-09-05 | 2019-12-20 | 江苏大亚铝业有限公司 | Aluminum foil for lithium battery aluminum plastic film and preparation process thereof |
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| Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338261A (en) * | 2022-06-22 | 2022-11-15 | 浙江桐昆新材料研究院有限公司 | Production method for improving surface dyne value of battery foil |
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Application publication date: 20210202 |
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