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Method for preparing positive electrode of aluminum battery through magnetron sputtering

A technology of magnetron sputtering and aluminum batteries, applied in battery electrodes, sputtering coating, secondary batteries, etc., can solve the problems of unsatisfactory chemical properties and complicated preparation process, and achieve good electrochemical performance and simple preparation method , the effect of controlling the electrode loading

Active Publication Date: 2020-05-19
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing the positive electrode of aluminum battery by magnetron sputtering, so as to solve the problems of unsatisfactory electrochemical performance of the existing aluminum battery positive electrode material and complicated preparation process

Method used

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  • Method for preparing positive electrode of aluminum battery through magnetron sputtering
  • Method for preparing positive electrode of aluminum battery through magnetron sputtering
  • Method for preparing positive electrode of aluminum battery through magnetron sputtering

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Step 1. Cut the high-purity molybdenum sheet into 1cm×1cm slices, and then ultrasonically clean them in deionized water, acetone and absolute ethanol for 20 minutes, then take it out and blow dry with high-purity nitrogen, and place it in Process in a vacuum drying oven. Finally, stick it on the magnetron sputtering sample tray, install the tellurium target, and prepare for sputtering.

[0024] Step 2. Turn on the magnetron sputtering equipment, vacuum the cavity of the magnetron sputtering equipment, turn on the molecular pump when the resistance unit indicates 5Pa, open the restrictor valve when the composite unit indicates 0.003Pa, and turn on the gas mass flow When the composite unit reads 0.4Pa, open the target baffle. When the DC magnetron sputtering power supply is turned on, turn the current adjustment knob to make the voltage read 100V, the current read 5A, and the power 500W. The sputtering film time is 20min, and the film thickness is 500nm. Finally, the tellur...

Embodiment 2

[0027] Step 1. Cut the high-purity molybdenum sheet into 1cm×2cm slices, and then ultrasonically clean them in deionized water, acetone and absolute ethanol for 20 minutes, then take it out and blow dry with high-purity nitrogen, and place it in Process in a vacuum drying oven. Finally, stick it on the magnetron sputtering sample tray, install the tellurium target, and prepare for sputtering.

[0028] Step 2: Turn on the magnetron sputtering equipment, vacuum the cavity of the magnetron sputtering equipment, turn on the molecular pump when the resistance unit indicates 3Pa, and turn on the restrictor valve when the composite unit indicates 0.001Pa to open the gas quality For the flowmeter, open the target baffle when the composite unit reads 0.2Pa, and when the DC magnetron sputtering power supply is turned on, turn the current adjustment knob to make the voltage read 100V, the current read 8A, and the power 800W. The film sputtering time is 30min, and the film thickness is 1000...

Embodiment 3

[0031] Step 1. Cut the high-purity molybdenum sheet into 2cm×2cm slices, and then ultrasonically clean them in deionized water, acetone and absolute ethanol for 20 minutes, then take it out and blow dry with high-purity nitrogen, and place it in Process in a vacuum drying oven. Finally, stick it on the magnetron sputtering sample tray, install the tellurium target, and prepare for sputtering.

[0032] Step 2: Turn on the magnetron sputtering equipment, vacuum the cavity of the magnetron sputtering equipment, turn on the molecular pump when the resistance unit indicates 3Pa, and turn on the restrictor valve when the composite unit indicates 0.001Pa to open the gas quality For the flow meter, open the target baffle when the composite unit reads 0.2Pa, and when the DC magnetron sputtering power supply is turned on, turn the current adjusting knob to make the voltage read 100V, the current read 10A, and the power 1000W. The film sputtering time is 30 min, and the film thickness is 1...

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Abstract

The invention provides a method for preparing a positive electrode of an aluminum battery through magnetron sputtering. The method comprises the following steps: (a) adhering a pretreated aluminum battery current collector to a sample table of magnetron sputtering equipment, mounting a tellurium target material, and preparing sputtering; (b) sputtering a tellurium film on the current collector byusing a direct-current sputtering power supply under the conditions that the voltage is 100-200V, the current is 2-10A, the magnetron sputtering power is 200-2000W and the sputtering air pressure is 0.04-0.4Pa; (c) carrying out heat treatment on the obtained tellurium film in a protective atmosphere to obtain the tellurium film electrode of the aluminum battery; and (d) assembling the tellurium film electrode as a positive electrode and high-purity metal aluminum as a negative electrode in an ionic liquid electrolyte to form the aluminum secondary battery. The tellurium film electrode is freeof a conductive agent and a binder, the preparation method is simple, the electrode loading capacity is easy to control, the components are uniform, the electrochemical performance is good, and a foundation is laid for future commercial development of aluminum batteries.

Description

Technical field [0001] The invention relates to the technical field of preparation of aluminum battery anode materials, in particular to a method for preparing aluminum battery anodes by magnetron sputtering. Background technique [0002] As we all know, with the development of economy and society, with the increasing demand for energy, large-scale burning of non-renewable resources such as coal has become increasingly undesirable. On the one hand, coal and other resources are non-renewable resources, and coal reserves are stretched. On the other hand, it has an irreversible impact on the environment, and environmental problems such as smog have a profound impact on people's housing and transportation. Thanks to LiCoO 2 With the successful discovery of He C as an electrode, lithium-ion technology has become the most mature power source technology with applications ranging from portable devices to large-scale power grids. However, with the large-scale use of lithium-ion batteries...

Claims

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Application Information

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IPC IPC(8): H01M4/04H01M4/139H01M10/058H01M10/054C23C14/35C23C14/58C23C14/06
CPCH01M4/0426H01M4/139H01M10/058H01M10/054C23C14/35C23C14/5806C23C14/3407C23C14/06Y02E60/10Y02P70/50
Inventor 李战雨李笑笑杨少鹏
Owner HEBEI UNIVERSITY
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