发明名称 PROCESS FOR PREPARING CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE OF CELL AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL USING SAME
摘要 A material for a negative electrode of a cell, which is prepared according to a process of the present invention, can provides a cell having a high true specific gravity, a high charging capacity and an excellent cycle characteristic. The process of the present invention comprises the steps of carbonizing an organic compound to form a carbide thereof, pulverizing said carbide to form a powder having an average particle size of 10 .mu. to 2 mm, and sintering said powder of the carbide at a temperature of 2, 000 C or higher to produce a graphite. In addition, in accordance with the present invention, there is also provided non-aqueous electrolyte secondary cell comprising a negative electrode, which is prepared by carbonizing an organic compound to form a carbide thereof, pulverizing the carbide to form a powder having an average particle size of 10 .mu.m to 2 mm, and sintering the powder of the carbide at a temperature of 2, 000.degree. C to form a graphite.
申请公布号 CA2175297(A1) 申请公布日期 1996.11.18
申请号 CA19962175297 申请日期 1996.04.29
申请人 SONY CORPORATION 发明人 NAGAMINE, MASAYUKI;OMARU, ATSUO;NAKAJIMA, NAOYUKI
分类号 C01B31/02;C01B31/04;H01M4/133;H01M4/1393;H01M4/58;H01M4/587;H01M10/05;H01M10/0525;H01M10/0566;H01M10/36 主分类号 C01B31/02
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