Production method of continuous casting and rolling composite metal strip

A composite metal, continuous casting and rolling technology, applied in the direction of metal rolling, metal rolling, rolling mill control devices, etc., can solve the problems of insufficient bonding force between metal lithium and metal copper, waste of materials, thick thickness, etc., and achieve improved Plasticity, improvement of product quality, effect of preventing cracks

Active Publication Date: 2021-03-05
QINGDAO NINEX NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1) It is difficult to prepare a lithium strip with a thickness of 2-20um on the surface of copper foil, that is, the thickness of metal lithium is relatively thick, which wastes materials;
[0008] 2) In the prepared negative electrode metal composite material, the binding force of metal lithium and metal copper is often not strong enough, and it is easy to fall off

Method used

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  • Production method of continuous casting and rolling composite metal strip
  • Production method of continuous casting and rolling composite metal strip
  • Production method of continuous casting and rolling composite metal strip

Examples

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Effect test

Embodiment 1

[0058] Such as figure 1 Shown is a schematic structural view of a continuous casting and rolling clad metal strip production line with the first structure applicable to the production method of continuous casting and rolling clad metal strip in Example 1 of the present invention. The continuous casting and rolling clad metal strip production line includes:

[0059] The transmission belt mechanism, the transmission belt mechanism includes a first transmission roller 11 and a second transmission roller 12 located at both ends, and a transmission belt 13 is set between the first transmission roller 11 and the second transmission roller 12;

[0060] The unwinding mechanism 30 is used to unwind the strip 1 that moves synchronously with the transmission belt 13;

[0061] Winding mechanism 40, used for winding the composite metal strip 2 obtained;

[0062] The transmission belt mechanism is provided with a control roller group for controlling the thickness of the metal material lay...

Embodiment 2

[0086] Such as Figure 11 Shown is a schematic structural view of a continuous casting and rolling clad metal strip production line with the first structure applicable to the production method of continuous casting and rolling clad metal strip of the present invention. The production line of the continuous casting and rolling composite metal strip of the present embodiment comprises:

[0087] The transmission belt mechanism, the transmission belt mechanism includes a first transmission roller 11 and a second transmission roller 12 located at both ends, and a transmission belt 13 is set between the first transmission roller 11 and the second transmission roller 12;

[0088] The unwinding mechanism 30 is used to unwind the strip 1 that moves synchronously with the transmission belt 13;

[0089] Winding mechanism 40, used for winding the composite metal strip 2 obtained;

[0090] The transmission belt mechanism is provided with a control roller group for controlling the thickness...

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Abstract

The invention discloses a production method of a continuous casting and rolling composite metal strip. The production method comprises the following steps: unwinding a strip, synchronously moving thestrip along with a transmission belt, adding liquid metal to the feeding side of a control roller set, keeping the liquid metal in a liquid state and fluidity through a high-temperature area arrangedon the feeding side of the control roller set, controlling the thickness of the liquid metal by using the control roller set, cooling and shaping the liquid metal located on the strip into a metal material layer compounded on the strip through a cooling area arranged on the discharging side of the control roller set, and obtaining the composite metal strip. According to the production method of the continuous casting and rolling composite metal strip, the thickness of the metal material layer can be accurately controlled, in other words, the thickness can be smaller so as to meet the use requirement of an energy storage electrode, and the binding force is better.

Description

technical field [0001] The invention relates to a production method of a metal strip, in particular to a production method of a continuous casting and rolling composite metal strip. Background technique [0002] The negative electrode of the lithium-ion battery is formed by mixing the negative electrode active material carbon material or non-carbon material, binder and additives, and the paste is evenly applied on both sides of the copper foil, dried and rolled. Whether lithium-ion batteries can be successfully manufactured depends on whether anode materials that can reversibly extract / intercalate lithium ions can be prepared. Generally speaking, the selection of a good anode material should follow the following principles: high specific energy; low electrode potential relative to lithium electrodes; good reversibility of charge and discharge reactions; good compatibility with electrolyte and binder; small specific surface area (<10m 2 / g), high true density (>2.0g / c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/46B21B37/16B21B45/02B21B15/00
CPCB21B1/463B21B37/165B21B45/0203B21B15/00B21B2015/0064B21B2015/0057
Inventor 辛民昌李长明吴超辛程勋
Owner QINGDAO NINEX NEW ENERGY TECH CO LTD
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