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公开(公告)号：EP2554515A4
公开(公告)日：2016-01-20
申请号：EP11765477
申请日：2011-03-28
发明人： YAMAMOTO HIROSHI , NAGATA TATSUO , NISHIHARA KATSUHIRO , NEGI NORIYUKI , YAUCHI AKIHIRO , FUJIWARA TOORU
CPC分类号： H01M4/133 , C01B32/20 , C01P2006/10 , C01P2006/11 , C01P2006/19 , H01M4/0402 , H01M4/1393 , H01M4/587
摘要： Modified natural graphite particles intended for forming a negative electrode material for a nonaqueous electrolyte secondary battery are characterized by having a circularity of at least 0.93 and at most 1.0 and a surface roughness of at most 1.5% with respect to the length of the particles. These modified natural graphite particles are obtained by a manufacturing method including a step of applying an impact force to natural graphite particles for pulverization and spheroidization to obtain intermediate particles having a circularity of at least 0.93 and at most 1.0, and a step of carrying out surface smoothing of the resulting intermediate particles by mechanical grinding treatment to obtain the modified natural graphite particles.
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2.发明公开MIXED CARBON MATERIAL AND NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY 审中-公开混合碳材料，负极的非水系二次电池
公开(公告)号：EP2416413A4
公开(公告)日：2014-10-22
申请号：EP10758555
申请日：2010-03-26
发明人： YAMAMOTO HIROSHI , NAGATA TATSUO , FUJIWARA TOORU
IPC分类号： H01M4/587 , C01B31/02 , C01B31/04 , H01M4/131 , H01M4/1393 , H01M4/36 , H01M10/0525
CPC分类号： H01M4/587 , C01B32/05 , C01B32/20 , H01M4/131 , H01M4/1393 , H01M4/364 , H01M10/0525
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公开(公告)号：EP2128086A4
公开(公告)日：2012-01-25
申请号：EP08704158
申请日：2008-01-30
发明人： FUJIWARA TOORU , YAMAMOTO HIROSHI
CPC分类号： H01M10/4235 , C01B32/05 , C01P2004/61 , C01P2006/12 , H01M4/02 , H01M4/362 , H01M4/587 , H01M10/0525 , H01M2004/021
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4.发明公开MIXED CARBON MATERIAL AND NEGATIVE ELECTRODE FOR NONAQUEOUS RECHARGEABLE BATTERY 审中-公开混合碳材料，负极的非水二次电池
公开(公告)号：EP2306560A4
公开(公告)日：2014-05-07
申请号：EP09797825
申请日：2009-07-02
发明人： YAMAMOTO HIROSHI , NAGATA TATSUO , FUJIWARA TOORU
IPC分类号： H01M4/587 , C01B31/04 , H01M4/133 , H01M4/36 , H01M10/0525
CPC分类号： H01M4/587 , C01B32/20 , H01M4/133 , H01M10/0525
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公开(公告)号：EP2695857A4
公开(公告)日：2014-09-17
申请号：EP12768047
申请日：2012-04-03
IPC分类号： C01B31/04 , H01M4/133 , H01M4/1393 , H01M4/36 , H01M4/587 , H01M4/62 , H01M4/66 , H01M10/052
CPC分类号： H01M4/587 , C01B32/20 , C01P2006/10 , C01P2006/11 , C01P2006/19 , H01M4/133 , H01M4/366 , H01M10/052
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