Method for manufacturing negative electrode material for secondary battery

The invention provides a manufacturing method of a negative electrode material for a secondary battery. The manufacturing method includes following steps. A silicon-containing material is provided. The alkaline treatment is performed on the silicon containing material by placing the silicon containi...

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Bibliographische Detailangaben
Hauptverfasser:	LIU WEIREN, LIU XINLI, XIE ZHENGZHE, WANG PINHAN, YE JIANYI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The invention provides a manufacturing method of a negative electrode material for a secondary battery. The manufacturing method includes following steps. A silicon-containing material is provided. The alkaline treatment is performed on the silicon containing material by placing the silicon containing material into an alkaline solution to obtain a modified silicon material. A peak intensity of the silicon-containing material at 3600 cm-1 to 3000 cm-1 in the spectrum by Fourier transform infrared spectroscopy (FTIR) is I0, and a peak intensity of the modified silicon material at 3600 cm-1 to 3000 cm-1 in the spectrum by FTIR is I1, wherein 0.9