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Pole lug aluminum strip surface treatment passivation solution

A technology of surface treatment and passivation solution, applied in the direction of metal material coating process, etc., can solve problems such as air hazards

Active Publication Date: 2016-02-17
MAIKAIMEN ELECTRONICS TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pickling solution used at this stage contains a large amount of nitric acid, and due to the presence of nitric acid, a large amount of NO will be generated 2 and NO, thus causing serious harm to the air

Method used

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  • Pole lug aluminum strip surface treatment passivation solution
  • Pole lug aluminum strip surface treatment passivation solution
  • Pole lug aluminum strip surface treatment passivation solution

Examples

Experimental program
Comparison scheme
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Embodiment approach

[0056] As an embodiment, the R 1 Alanine, valine, leucine, isoleucine, proline, phenylalanine, tryptophan, methionine, glycine, serine, threonine, cysteine, tyrosine , one of the residues of asparagine and glutamine.

[0057] As an embodiment, the R 1 One of residues selected from serine, tyrosine, isoleucine, threonine, and aspartic acid.

[0058] As an embodiment, the passivation solution for surface treatment of tab aluminum strips further includes a copolymer of a quaternary ammonium salt monomer and an alkenoic acid compound.

[0059]As an embodiment, the quaternary ammonium salt monomer is a quaternary ammonium salt having an alkyl group with a carbon number of 1-18 and a double bond; the enoic acid compound has at least one double bond and at least one carboxyl group compound of.

[0060] As an embodiment, the quaternary ammonium salt monomer is selected from N,N,N-trimethyl-allyl quaternary ammonium salt, dodecyldimethylallyl quaternary ammonium salt, octaalkyl di ...

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Abstract

The invention discloses a pole lug aluminum strip surface treatment passivation solution. The pole lug aluminum strip surface treatment passivation solution comprises chromium trioxide, nickel nitrate hexahydrate, a pickling agent, a film formation accelerant and water. By means of the pole lug aluminum strip surface treatment passivation solution, the passivation film compactness and the salt mist can be improved, and the bonding performance between a film and pole lug glue can be improved.

Description

technical field [0001] The invention relates to the field of metal surface treatment, in particular, the invention relates to a passivation solution for the surface treatment of tab tabs of new energy power batteries. Background technique [0002] Aluminum strip tabs are widely used in various batteries, such as lithium batteries. The performance of the aluminum strip tabs fundamentally determines the performance of the battery. Therefore, in order to prevent the corrosion of the tabs of the aluminum strip, the surface is usually passivated by chromate treatment technology. The chromate passivation process passes the aluminum strip through chromate passivation to form a mixed oxide film of chromium and aluminum. The chromium ions in the film are mainly Cr 3+ and Cr 6+ exists in the form of Cr 3+ The oxide is used as the skeleton, and its mixed oxide film layer has strong oxidation and self-healing effect. [0003] Before carrying out passivation treatment on the surface...

Claims

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Application Information

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IPC IPC(8): C23C22/26
Inventor 沈明森
Owner MAIKAIMEN ELECTRONICS TECH SHANGHAI
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