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Battery aluminum foil production method capable of increasing surface dyne value

A production method and technology of dyne value, applied in the direction of metal rolling, etc., can solve the problems of poor stability of surface dyne value and unsatisfactory dyne value of aluminum foil surface.

Active Publication Date: 2021-09-14
山东德利铝业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] patent application CN111438187A discloses a production process for preparing aluminum foil for lithium batteries with high-hardness rolls. 4 passes of intermediate rolling, 5 passes of finish rolling, slitting, corona, finished product, packaging, that is, the surface dyne value of the obtained aluminum foil is still not ideal, and the stability of the surface dyne value is also poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for producing battery aluminum foil for improving the surface dyne value, comprising the steps of:

[0035] (1) Smelting and refining;

[0036] (2) cast-rolled, cold-rolled to 0.25mm;

[0037] (3) Rough rolling: the first pass is pressed from 0.25mm to 0.10mm, and the second pass is pressed from 0.10mm to 0.059mm;

[0038] (4) Intermediate rolling: the third pass is pressed from 0.059mm to 0.030mm, and the fourth pass is pressed from 0.030mm to 0.015mm;

[0039] (5) Finish rolling: the fifth pass is pressed from 0.015mm to 0.009~0.01mm;

[0040] (6) corona treatment, heat preservation treatment;

[0041] Among them, rolling oil is used in the rough rolling, intermediate rolling and finishing rolling steps, and the rolling oil is obtained by adding additives and auxiliary agents to white oil and stirring and mixing; the mass ratio of additives, auxiliary agents and white oil is 3 : 0.9: 100; the additive is obtained by uniformly mixing n-propyl caprate and l...

Embodiment 2

[0055] A method for producing battery aluminum foil for improving the surface dyne value, comprising the steps of:

[0056] (1) Smelting and refining;

[0057] (2) cast-rolled, cold-rolled to 0.25mm;

[0058] (3) Rough rolling: the first pass is pressed from 0.25mm to 0.10mm, and the second pass is pressed from 0.10mm to 0.059mm;

[0059] (4) Intermediate rolling: the third pass is pressed from 0.059mm to 0.030mm, and the fourth pass is pressed from 0.030mm to 0.015mm;

[0060] (5) Finish rolling: the fifth pass is pressed from 0.015mm to 0.009~0.01mm;

[0061] (6) corona treatment, heat preservation treatment;

[0062] Among them, rolling oil is used in the rough rolling, intermediate rolling and finishing rolling steps. The rolling oil is obtained by adding additives and auxiliary agents to white oil and stirring and mixing; the mass ratio of additives, auxiliary agents and white oil is 5 : 0.7: 100; the additive is obtained by uniformly mixing n-propyl caprate and laury...

Embodiment 3

[0076] A method for producing battery aluminum foil for improving the surface dyne value, comprising the steps of:

[0077] (1) Smelting and refining;

[0078] (2) cast-rolled, cold-rolled to 0.25mm;

[0079] (3) Rough rolling: the first pass is pressed from 0.25mm to 0.10mm, and the second pass is pressed from 0.10mm to 0.059mm;

[0080] (4) Intermediate rolling: the third pass is pressed from 0.059mm to 0.030mm, and the fourth pass is pressed from 0.030mm to 0.015mm;

[0081] (5) Finish rolling: the fifth pass is pressed from 0.015mm to 0.009mm;

[0082] (6) corona treatment, heat preservation treatment;

[0083] Among them, rolling oil is used in the steps of rough rolling, intermediate rolling and finishing rolling. The rolling oil is obtained by adding additives and auxiliary agents to white oil and stirring and mixing; the mass ratio of additives, auxiliary agents and white oil is 4 : 0.8: 100; the additive is obtained by uniformly mixing n-propyl caprate and lauryl ...

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Abstract

The invention discloses a battery aluminum foil production method capable of increasing the surface dyne value. Battery aluminum foil is produced through smelting, refining, cast rolling, rough rolling, intermediate rolling, finish rolling, corona treatment and heat preservation treatment, rolling oil is used in the rough rolling step, the intermediate rolling step and the finish rolling step, and the rolling oil is obtained by adding an additive and an auxiliary agent into white oil and stirring and mixing evenly. The surface dyne value of the obtained battery aluminum foil is high, and the surface dyne value can keep good stability. The additive is prepared by uniformly mixing n-propyl caprate and lauryl alcohol according to a certain ratio. The auxiliary agent is prepared from the following raw materials of epoxy resin, turpentine, silicon dioxide coated nano aluminum silicate and 1-aminopropyl-3-methylimidazole bis (trifluoromethanesulfonyl) imine salt.

Description

technical field [0001] The invention relates to a production method of battery aluminum foil, in particular to a production method of battery aluminum foil which improves the surface dyne value. The invention belongs to the technical field of aluminum foil processing. Background technique [0002] Usually, ordinary packaging aluminum foil products are delivered in O state, because the finished product has been annealed, so there is almost no problem with the surface dyne value, and the battery aluminum foil is delivered in H state, so the control of the surface dyne value is It is particularly important. Generally, battery aluminum foil products require the surface dyne value to be controlled above 31dyn, because the surface dyne value of the aluminum foil will decay with storage time, so it is required that the surface dyne value reach 32dyn or above after rolling. Conventional Aluminum foil process oil is difficult to meet its production requirements. [0003] Lithium ba...

Claims

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Application Information

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IPC IPC(8): B21B1/40B21B3/00
CPCB21B1/40B21B3/00B21B2003/001Y02E60/10
Inventor 王建忠史久华隗功亮郭锋尚会强
Owner 山东德利铝业科技有限公司
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