Method for preparing GaN/conductive substrate composite material by magnetron sputtering method and application of GaN/conductive substrate composite material on lithium ion battery
A composite material and magnetron sputtering technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve problems that have not been reported
Inactive Publication Date: 2016-06-01
CHINA THREE GORGES UNIV
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Abstract
The invention relates to a method for preparing a GaN/conductive substrate composite material by a magnetron sputtering method. The composite material is GaN; the specific preparation method comprises the steps of putting a GaN target material with the purity of 99.99% and a metal substrate into a sputtering cavity separately, wherein the distance D from the target material to the substrate is 7cm; performing vacuum pumping to the cavity, wherein V is greater than or equal to 1*10<-7>Torr; heating the substrate, and keeping the temperature at 25-700 DEG C; and performing target material bombardment through magnetron sputtering, and growing GaN on the metal substrate in a depositing manner. The prepared GaN directly grows on the conductive substrate, and is tightly combined with the substrate; the GaN in the prepared sample is uniform nanoparticles with average dimensions of 40nm; and the prepared GaN can be used as a lithium ion battery negative electrode material, and has a relatively high charge-discharge capacity and a relatively low charge-discharge platform.
Application Domain
Negative electrodesSecondary cells +1
Technology Topic
Metal substrateLithium electrode +8
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