PRODUCTION PROCESS FOR CARBON-COATED SILICON MATERIAL

Provided are: a silicon material which is more preferable than conventional silicon materials; and a method for producing the silicon material. A method for producing a carbon-coated silicon material, which is characterized by comprising: a layered silicon compound production step wherein a layered...

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Bibliographische Detailangaben
Hauptverfasser:	GODA Nobuhiro, TAKAHASHI Mutsumi, SONE Hirotaka, SAEKI Akihiro, NIIMI Tomohiro, SAITO Atsushi, MOHRI Takashi, KONDO Takeshi, ABE Tomokuni, SUGIYAMA Yusuke
Format:	Patent
Sprache:	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:	Provided are: a silicon material which is more preferable than conventional silicon materials; and a method for producing the silicon material. A method for producing a carbon-coated silicon material, which is characterized by comprising: a layered silicon compound production step wherein a layered silicon compound is obtained by having CaSi2 react with an acid; a silicon material production step wherein a silicon material is obtained by heating the layered silicon compound at a temperature of 300°C or more; a coating step wherein the silicon material is coated with carbon; and a cleaning step wherein the silicon material before or after the coating step is cleaned with use of a solvent having a relative dielectric constant of 5 or more.