Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Double-surface-smooth ultra-thin electrolytic copper foil for lithium battery and preparation method thereof

A technology of electrolytic copper foil and lithium battery, applied in the field of copper foil, can solve problems such as unfavorable processing and production, unfavorable subsequent use, unfavorable user use, etc., and achieve the effects of favorable processing and production, convenient processing, and improved smoothness

Inactive Publication Date: 2019-09-20
贵州中鼎高精铜箔制造有限公司
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of electronic information industry, new energy vehicle industry, wind power generation, solar power generation, high-speed rail, and urban rail transit, the demand for lithium batteries will increase rapidly. High-precision lithium battery copper foil will be widely used in electric vehicles, All lithium batteries, such as handheld electronic devices and energy storage power stations, are used as current collectors for their high energy storage systems. Electronic copper foil is an irreplaceable basic material. In the rapid development of today's electronic information industry, electrolytic copper foil is known as the neural network for electronic product signal and power transmission and communication; the traditional electrolytic copper foil process is costly and complex, which is not conducive to processing and production, and the traditional electrolytic copper foil Copper foil copper raw materials react with sulfuric acid at a slow rate and low reaction intensity, which increases the production time. The cathode and anode of traditional copper foil electrolysis are made of general alloy materials, which are very easy to react with copper sulfate, resulting in many impurities in the raw foil produced by electrolysis, reducing copper. At the same time, the single-sided electroplating of traditional electrolytic copper foil is not conducive to user use, and the high thickness of copper foil is easy to bend and damage, which is not conducive to subsequent use; in view of these defects, a double-sided light ultra-thin electrolytic copper for lithium batteries is designed Foils and methods of making them are necessary

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-surface-smooth ultra-thin electrolytic copper foil for lithium battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A double-sided glossy ultra-thin electrolytic copper foil for lithium batteries, the formula includes: pure water, copper raw materials, sulfuric acid, chromate, hydrogen peroxide, silane, initiator, resin substrate, catalyst, coupling agent, the composition of each component The mass percentages are: pure water 16%, copper raw material 20%, sulfuric acid 15%, chromate 10%, hydrogen peroxide 4%, silane 20%, initiator 3%, resin substrate 10%, catalyst 1% and Coupling agent 1%.

[0037] A method for preparing double-sided light ultra-thin electrolytic copper foil for lithium batteries, comprising the following steps: Step 1, raw material selection; Step 2, raw material mixing; Step 3, electrolytic copper foil; Step 4, galvanizing processing; Step 5, Passivation treatment; Step 6, drying and winding;

[0038] Wherein the above step 1, according to the mass percentage of each component is: pure water 16%, copper raw material 20%, sulfuric acid 15%, chromate 10%, hydrogen p...

Embodiment 2

[0058] A double-sided glossy ultra-thin electrolytic copper foil for lithium batteries, the formula includes: pure water, copper raw materials, sulfuric acid, chromate, hydrogen peroxide, silane, initiator, resin substrate, catalyst, coupling agent, the composition of each component The mass percentages are: pure water 16%, copper raw material 20%, sulfuric acid 15%, chromate 15%, hydrogen peroxide 4%, silane 15%, initiator 3%, resin substrate 10%, catalyst 1% and Coupling agent 1%.

[0059] A method for preparing double-sided light ultra-thin electrolytic copper foil for lithium batteries, comprising the following steps: Step 1, raw material selection; Step 2, raw material mixing; Step 3, electrolytic copper foil; Step 4, galvanizing processing; Step 5, Passivation treatment; Step 6, drying and winding;

[0060] Wherein the above-mentioned step 1, according to the mass percent content of each component is respectively: pure water 16%, copper raw material 20%, sulfuric acid 1...

Embodiment 3

[0080] A double-sided glossy ultra-thin electrolytic copper foil for lithium batteries, the formula includes: pure water, copper raw materials, sulfuric acid, chromate, hydrogen peroxide, silane, initiator, resin substrate, catalyst, coupling agent, the composition of each component The mass percentages are: pure water 16%, copper raw material 20%, sulfuric acid 15%, chromate 20%, hydrogen peroxide 4%, silane 10%, initiator 3%, resin substrate 10%, catalyst 1% and Coupling agent 1%.

[0081] A method for preparing double-sided light ultra-thin electrolytic copper foil for lithium batteries, comprising the following steps: Step 1, raw material selection; Step 2, raw material mixing; Step 3, electrolytic copper foil; Step 4, galvanizing processing; Step 5, Passivation treatment; Step 6, drying and winding;

[0082] Wherein the above step 1, according to the mass percentage of each component is: pure water 16%, copper raw material 20%, sulfuric acid 15%, chromate 20%, hydrogen p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a double-surface-smooth ultra-thin electrolytic copper foil for a lithium battery and a preparation method thereof. The formula of the electrolytic copper foil comprises pure water, a copper raw material, sulfuric acid, chromate, hydrogen peroxide, silane, an initiator, a resin base material, a catalyst and a coupling agent, each component is in percentage by mass of 16% of the pure water, 20% of the copper raw material, 15% of the sulfuric acid, 10% of the chromate, 4% of the hydrogen peroxide, 20% of the silane, 3% of the initiator, 10% of the resin base material, 1% of the catalyst and 1% of the coupling agent; the preparation method comprises the following steps of Step 1, selecting raw material; Step 2, mixing raw material; Step 3, electrolyzing copper foil; Step 4, carrying out galvanizing; Step 5, carrying out passivation treatment; and Step 6, drying and rolling the electrolytic copper foil. According to the preparation method, the copper raw material is soaked in the hydrogen peroxide, so that the time of the copper raw material in the sulfuric acid is greatly reduced, and the preparation of copper sulfate solution is facilitated; and an electrolytic cathode roller and an anode seat adopt pure titanium raw materials and lead-antimony alloy correspondingly, so that the cathode roller and the anode base are avoided to react with copper sulfate to generate impurities, and the quality of the copper foil is improved.

Description

technical field [0001] The invention relates to the technical field of copper foil, in particular to a double-sided glossy ultra-thin electrolytic copper foil for lithium batteries and a preparation method thereof. Background technique [0002] With the development of electronic information industry, new energy vehicle industry, wind power generation, solar power generation, high-speed rail, and urban rail transit, the demand for lithium batteries will increase rapidly. High-precision lithium battery copper foil will be widely used in electric vehicles, All lithium batteries, such as handheld electronic devices and energy storage power stations, are used as current collectors for their high energy storage systems. Electronic copper foil is an irreplaceable basic material. In the rapid development of today's electronic information industry, electrolytic copper foil is known as the neural network for electronic product signal and power transmission and communication; the tradi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/04C25D3/22C25D7/06C25D5/48
CPCC25D1/04C25D3/22C25D5/48C25D7/0614
Inventor 付强付毅张宏洋
Owner 贵州中鼎高精铜箔制造有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products