Production method of ultra-wide lithium metal ribbon

Abstract

The invention relates to a production method and a system for an ultra-wide metallic lithium strip. The production method comprises the following steps: extruding an arc-shaped lithium strip; carrying out alignment flattening on the extrude arc-shaped lithium strip to form a flat and straight lithium strip; winding the aligned and flattened flat and straight lithium strip on a spool. The system comprises an extruding machine and a winding device, wherein the extruding mechanism is provided with a mould provided with an arc-shaped extrusion cavity; the winding device is arranged behind the extruding hole of the mould and consists of an alignment roll, a flattening mechanism, a levelling roll and the spool, wherein the alignment roll, the flattening mechanism, the levelling roll and the spool are arranged along a lithium strip transmission direction in sequence; the winding device is used for aligning and flattening the arc-shaped lithium strip extruded from the mould to form the flat and straight lithium strip, and then, the flat and straight lithium strip is wound on the spool. According to the production method, on a premise that the extruding machine, other original elements and power are not changed, the production technology of the ultra-wide metallic lithium strip is finished, the research, the development and the investment of ultra-large type extruding equipment can be replaced and solved, the great potential of original equipment is extremely performed, and a new valued thought is developed, researched and initiated for a new product.

Description

technical field [0001] The invention belongs to the field of metal processing equipment and relates to a production method of an ultra-wide lithium metal strip. Background technique [0002] The production process for preparing lithium strips from metal lithium is to use an extruder to produce and process through a linear die. At present, the equipment technology and mold use form for the production of lithium strips are basically the same at home and abroad. Moreover, the width specification of the product does not exceed 200mm, and the product is completely controlled by the extrusion of the linear die. [0003] It is understood that the lithium industry is currently developing rapidly in the application range of batteries and energy storage, and the demand for ultra-wide lithium belts is also tending to be mass-produced. However, large-scale production equipment for ultra-wide lithium strips has not yet been substantially developed and rolled out. There should be no st...

AI Technical Summary

Problems solved by technology

The disadvantage is that it is difficult to achieve the ideal continuity in the production process control of this kind of splicing, and the splicing interface is in contrast to the density of other unit areas, so it is not an ideal battery and energy storage material.

Moreover, the complex process and low yield cannot meet the needs of mass production, and the production cost must be high if there are many procedures.

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