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Conductive metal oxide current collector coating for aluminium ion battery

An aluminum ion battery, current collector coating technology, applied in battery electrodes, secondary batteries, electrochemical generators, etc., can solve problems such as high cost and instability, reduce production and use costs, and achieve good corrosion resistance. , the effect of good electrochemical performance

Inactive Publication Date: 2019-04-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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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 solve the problem of unstable chemical and electrochemical properties and high cost caused by other precious metals caused by the use of low-cost current collectors in the existing aluminum-ion battery system, and to provide a conductive metal oxide for aluminum-ion batteries Current collector coating

Method used

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  • Conductive metal oxide current collector coating for aluminium ion battery
  • Conductive metal oxide current collector coating for aluminium ion battery
  • Conductive metal oxide current collector coating for aluminium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In this embodiment, the preliminary verification of the current collector anti-corrosion coating of the aluminum ion battery can be carried out by the following method: the purchased pure indium tin oxide target is wire-cut into pieces with a size of 10mm*3mm for electrochemical testing;

[0030] Clean the surface of the cut pure indium tin oxide target sheet ultrasonically for 5 minutes; select the prepared pure indium tin oxide target sheet as the working electrode, the metal aluminum sheet as the counter electrode, and the metal platinum sheet as the reference electrode for electrochemical three-electrode test.

[0031] The test steps include:

[0032] 1) Preparation of the imidazole system electrolyte for aluminum ion batteries. The aluminum ion-containing non-aqueous ionic electrolyte required for the configuration system, the material was dried in a vacuum oven before the preparation, and moved to the glove box, with AlCl 3 : [EMIm]Cl=1.3 (molar ratio) mixed in ...

Embodiment 2

[0038] The preparation method of the aluminum ion battery current collector of the present embodiment is as follows: 1) select transparent glass with a thickness of 0.5mm as the current collector substrate, and ultrasonically clean it for 10 minutes; Sputtering chamber; 3) Set sputtering parameters: substrate temperature is room temperature, power 70w, DC sputtering, air pressure 3mtorr, sputtering time on one side is 70+-10min; 4) After sputtering, sampling, sputtering thickness 350nm+-10nm; 5) Take out the sputtered sample and cut it into a fixed size (5*10mm) for use.

[0039] Clean the surface of the cut glass sputtered with indium tin oxide coating, and wipe it with alcohol cotton; select the sputtered indium tin oxide current collector on the prepared glass substrate as the working electrode, the metal aluminum sheet as the counter electrode, and the metal platinum sheet as the reference electrode. Electrochemical three-electrode tests were performed with specific electr...

Embodiment 3

[0047] The preparation method of the aluminum ion battery current collector of the present embodiment is as follows: 1) select a polyethylene terephthalate polymer film with a thickness of 0.025 mm as the current collector substrate; 2) make polyethylene terephthalate Move the ester polymer film substrate to the magnetron sputtering chamber; 3) Set the sputtering parameters: the substrate temperature is room temperature, the power is 70w, DC sputtering, the air pressure is 3mtorr, and the sputtering time on one side is 70+-10min; 4 ) Sampling after sputtering, the sputtering thickness is 350nm+-10nm; 5) Take out the sputtered sample and cut it into the required size (5*10mm) for use.

[0048] Clean the surface of the cut and sputtered polyethylene terephthalate polymer film coated with indium tin oxide, and wipe it with alcohol cotton; select the prepared polyethylene terephthalate polymer film substrate to sputter Indium tin oxide current collector is used as working electrod...

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Abstract

The invention relates to a conductive metal oxide current collector coating, and specifically relates to a conductive metal oxide current collector coating for an aluminium ion battery, belonging to the battery field. The conductive metal oxide current collector coating for an aluminium ion battery sputters indium tin oxide, fluorine-doped tin oxide or LaNiO3 coating to a piece of transparent glass, a tinsel or a polymer film to prepare a current collector. The current collector has good chemical stability and electrochemical stability under a wide electrochemical window (0-3.0V / 0-2.5V (vs Al)). The conductive metal oxide current collector coating for an aluminium ion battery has the advantages of guaranteeing good effect of the current collector while effectively reducing the production and use cost of the current collector, and being wider in the application range as the current collector has a certain degree of flexibility.

Description

technical field [0001] The invention relates to a conductive metal oxide current collector coating, in particular to a conductive metal oxide current collector coating for an aluminum ion battery, and belongs to the field of batteries. Background technique [0002] In recent years, the emerging aluminum-ion battery has received extensive attention due to its advantages. Its main advantages include the abundant storage of aluminum on the surface, solving the problem of resource scarcity, using non-flammable and electrochemically stable ionic liquid electrolyte, and solving safety problems. , the aluminum metal negative electrode has a high theoretical specific capacity (2978mAh g -1 and 8034mAh L -1 ). However, the aluminum-ion batteries currently under development also face problems that need to be solved, including the current collector problem, the corrosion problem of the aluminum negative electrode, and the high cost of the electrolyte. Among them, current collectors ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/66H01M10/054
CPCH01M4/667H01M10/054Y02E60/10
Inventor 宋维力陈浩森陈丽丽焦树强方岱宁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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