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Three-stage evaporation high-speed roll-to-roll vacuum lithium 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 rapid temperature rise of the substrate, material vapor cannot be attached to the coating, and the heat capacity of the coating substrate is small. Achieve the effects of improving high temperature phenomena, improving uneven deposition, and improving raw material utilization

Active Publication Date: 2020-04-24
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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  • Three-stage evaporation high-speed roll-to-roll vacuum lithium film production device
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  • Three-stage evaporation high-speed roll-to-roll vacuum lithium film production device

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as figure 1 as shown,

[0050] A three-stage evaporation high-speed roll-to-roll vacuum lithium film production device, including a frame, the frame is made of stainless steel, a first partition and a second partition are arranged in the frame, the first partition and the second The partitions are arranged vertically, and the first partition and the second partition are provided with a corresponding window, the window is rectangular, parallel to the axis of the cooling roll, and its length is slightly greater than the width of the base film. The length of the passage window is selected to be greater than the width of the base film by 6m, and the inside of the frame is divided into the unwinding chamber, the first coating chamber, the winding chamber, and the base film by the first partition and the second partition successively. Pass through the window from the unwinding chamber to the winding chamber;

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

Embodiment 2

[0069] A three-stage evaporation high-speed roll-to-roll vacuum lithium film production device, including a frame, the frame is made of stainless steel, a first partition and a second partition are arranged in the frame, the first partition and the second The partitions are arranged vertically, and the first partition and the second partition are provided with a corresponding window, the window is rectangular, parallel to the axis of the cooling roll, and its length is slightly greater than the width of the base film. The length of the passage window is selected to be greater than the width of the base film by 6m, and the inside of the frame is divided into the unwinding chamber, the first coating chamber, the winding chamber, and the base film by the first partition and the second partition successively. Pass through the window from the unwinding chamber to the winding chamber;

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

Embodiment 3

[0089] A three-stage evaporation high-speed roll-to-roll vacuum lithium film production device, including a frame, the frame is made of stainless steel, a first partition and a second partition are arranged in the frame, the first partition and the second The partitions are arranged vertically, and the first partition and the second partition are provided with a corresponding window, the window is rectangular, parallel to the axis of the cooling roll, and its length is slightly greater than the width of the base film. The length of the passage window is selected to be greater than the width of the base film by 6m, and the inside of the frame is divided into the unwinding chamber, the first coating chamber, the winding chamber, and the base film by the first partition and the second partition successively. Pass through the window from the unwinding chamber to the winding chamber;

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

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Abstract

The invention provides a three-stage evaporation high-speed roll-to-roll vacuum lithium film production device. The device comprises a rack, wherein a first partition plate and a second partition plate are arranged in the rack, the first partition plate and the second partition plate are both longitudinally arranged, windows corresponding in positions are respectively arranged on the first partition plate and the second partition plate, the first partition plate and the second partition plate sequentially divide the inside of the rack into an unreeling cavity, a first coating cavity and a reeling cavity, and a base film passes from the unreeling cavity to the reeling cavity through the windows. According to the three-stage evaporation high-speed roll-to-roll vacuum lithium film productiondevice, lithium is conveyed and evaporated through an evaporation system with a three-stage evaporation structure, and the high-temperature phenomenon of deposited lithium films and the uniformity ofthe films are improved.

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 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, due to the limitation of the nature of the electrode itself in the existing commercial battery system, the improvement of the 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 increase the energy density of the battery as a negative electrode, and the lithium metal battery system developed based on this, such as: lithium sulfur battery, lithium Air batteries and lithium metal all...

Claims

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Application Information

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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