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A three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device

A production device and stage evaporation technology, which is applied in the field of three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production equipment, can solve the problems of small heat capacity of the coating substrate, material vapor cannot be attached to the coating, and rapid temperature rise of the substrate substrate. Achieve the effects of improving high temperature phenomena, improving uneven deposition, and improving raw material utilization

Active Publication Date: 2022-06-24
复阳固态储能科技(溧阳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small heat capacity of the coating substrate, the evaporated metal material will cause a rapid temperature rise of the substrate; if the temperature of the substrate is higher than or close to the melting point of the material, it will cause the material vapor to be unable to attach to the substrate.

Method used

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  • A three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device
  • A three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device
  • A three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device

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Experimental program
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Effect test

Embodiment 1

[0049] like figure 1 shown,

[0050] A three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device includes a frame, the frame is made of stainless steel, and the frame is provided with a first separator and a second separator, the first separator and the second separator The partitions are arranged longitudinally, the first partition and the second partition are provided with a window corresponding to the position, the window is rectangular, parallel to the axis of the cooling roll, and its length is slightly larger than the width of the base film, The length of the passing window is selected to be greater than the width of the base film by 6m, and the first and second partitions separate the inside of the frame into an unwinding cavity, a first coating cavity, a rewinding cavity, and the base film. Pass through the unwinding cavity to the rewinding cavity through the window;

[0051] The first coating chamber is provided with a three-stage ev...

Embodiment 2

[0069] A three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device includes a frame, the frame is made of stainless steel, and the frame is provided with a first separator and a second separator, the first separator and the second separator The partitions are arranged longitudinally, the first partition and the second partition are provided with a window corresponding to the position, the window is rectangular, parallel to the axis of the cooling roll, and its length is slightly larger than the width of the base film, The length of the passing window is selected to be greater than the width of the base film by 6m, and the first and second partitions separate the inside of the frame into an unwinding cavity, a first coating cavity, a rewinding cavity, and the base film. Pass through the unwinding cavity to the rewinding cavity through the window;

[0070] The first coating chamber is provided with a three-stage evaporation mechanism, and the thr...

Embodiment 3

[0089] A three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device includes a frame, the frame is made of stainless steel, and the frame is provided with a first separator and a second separator, the first separator and the second separator The partitions are arranged longitudinally, the first partition and the second partition are provided with a window corresponding to the position, the window is rectangular, parallel to the axis of the cooling roll, and its length is slightly larger than the width of the base film, The length of the passing window is selected to be greater than the width of the base film by 6m, and the first and second partitions separate the inside of the frame into an unwinding cavity, a first coating cavity, a rewinding cavity, and the base film. Pass through the unwinding cavity to the rewinding cavity through the window;

[0090] The first coating chamber is provided with a three-stage evaporation mechanism, and the thr...

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Abstract

The invention provides a three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device, which includes a frame, a first separator and a second separator are arranged in the frame, and the first separator and the second separator are arranged in the frame. are arranged vertically, and the first partition and the second partition are provided with a corresponding window, and the first partition and the second partition divide the inside of the frame into The unwinding chamber, the first coating chamber, and the winding chamber, the base film passes through the window from the unwinding chamber to the winding chamber. The three-stage evaporation high-speed roll-to-roll vacuum lithium film production device of the present invention completes the transportation and evaporation of lithium through the evaporation system of the three-stage evaporation structure, and improves the high temperature phenomenon and the uniformity of the deposited lithium film.

Description

technical field [0001] The invention belongs to the field of lithium ion batteries, in particular to a three-stage evaporation high-speed roll-to-roll vacuum lithium thin film production device. Background technique [0002] With the increasing demand for high-energy-density chemical power sources such as smartphones, computers, and electric vehicles, the specific capacity requirements for lithium-ion secondary batteries are also gradually increasing. However, in the existing commercial battery system, due to the limitation of the nature of the electrode itself, the improvement of specific capacity is limited, so new systems continue to be developed. Due to its large weight specific capacity (3860mAh / g) and low electrode potential (-3.04V), metal lithium will significantly improve the energy density of the battery as a negative electrode, and lithium metal battery systems developed based on this, such as: lithium-sulfur batteries, lithium Air batteries and lithium metal all...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/14C23C14/24C23C14/56C23C14/54
CPCC23C14/14C23C14/24C23C14/562C23C14/246C23C14/54
Inventor 李立飞
Owner 复阳固态储能科技(溧阳)有限公司