Preparation method and application of high-entropy alloy modified lithium metal electrode

The invention relates to a preparation method and application of a high-entropy alloy modified lithium metal electrode, and belongs to the technical field of lithium metal battery negative electrodes. According to the method, a magnetron sputtering method is adopted, and a high-entropy alloy is used...

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Hauptverfasser:	PAN XINHUI, ZHENG LONGHONG, LUO CHONG, JIN XIAOYU, CHEN RENJIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to a preparation method and application of a high-entropy alloy modified lithium metal electrode, and belongs to the technical field of lithium metal battery negative electrodes. According to the method, a magnetron sputtering method is adopted, and a high-entropy alloy is used as a target material to be sputtered onto a lithium metal substrate. The high-entropy alloy modified lithium metal electrode is used as a battery negative electrode, a total battery assembled by matching with LFP still keeps high specific discharge capacity of 130mAh g after 300 cycles of charge and discharge at the rate of 1C, and the capacity retention ratio is 88%. 本发明涉及一种高熵合金改性的锂金属电极的制备方法及其应用，属于锂金属电池负极技术领域。所述方法采用磁控溅射法，将高熵合金作为靶材溅射到锂金属基底上。以所述高熵合金改性的锂金属电极作为电池负极，匹配LFP组装的全电池在1C倍率下，充放电循环300周仍保持130mAh g-1的高放电比容量，容量保持率为88％。