Copper foil production conjoint machine and high-bonding strength copper foil technology for lithium ion battery
A conjoined machine, high bonding technology, applied in electroforming, electrolysis process, etc., can solve problems such as poor bonding force, and achieve the effect of reducing emissions, easy operation and environmental protection
Active Publication Date: 2013-06-19
FUJIAN QINGJING COPPER FOIL
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The invention discloses a copper foil production conjoint machine and a high-bonding strength copper foil technology for a lithium ion battery. The copper foil production conjoint machine comprises a foil production machine and a post-treatment machine. The post-treatment machine is connected to the back of the foil production machine. A straight-line distance between a treatment tank copper foil input roller of the post-treatment machine and a copper foil stripping roller of the foil production machine is less than or equal to 3m. A rough treatment anode plate and a curing treatment anode plate are arranged along two surfaces of copper foil in a pre-treatment tank of the post-treatment machine. A post-treatment process comprises carrying out double-surface rough treatment, curing treatment, passivation treatment and washing treatment on copper foil which is fed by the foil production machine and has double-surface roughness vales of Rz less than 1.7 micrometers and Ra less than 0.25 micrometers. Through utilization of a copper sulphate solution as a roughing solution and a curing solution, the production flow is simplified; the control process is simple and can be operated simply; and a yield is improved. The copper sulphate solution does not contain an arsenic compound, reduces pollutant discharge, is conducive to environmental protection, and has obvious economic and social benefits.
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Property | Measurement | Unit |
Diameter | 0.1 | µm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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