公开(公告)号：EP3128587A4

公开(公告)日：2017-02-08

申请号：EP15772895

申请日：2015-03-27

申请人： KUREHA CORP

发明人： KOBAYASHI SHOTA ,  IKEYAMA YASUFUMI ,  TADA YASUHIRO ,  SONOBE NAOHIRO ,  KOMATSU MAYU

IPC分类号： H01M4/587 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0566

CPC分类号： H01M4/587 ,  C01B32/05 ,  C01P2006/10 ,  C01P2006/60 ,  C01P2006/80 ,  H01M4/364 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

摘要： A negative electrode material for a non-aqueous electrolyte secondary battery and the like with high discharge capacity relative to volume and excellent cycle characteristics are provided. The negative electrode material for a non-aqueous electrolyte secondary battery of the present invention comprises, as an active material, a carbon material mixture including a non-graphitic carbon material and a graphitic material. In this carbon material mixture, the non-graphitic carbon material has an atom ratio (H/C) of hydrogen atoms to carbon atoms determined by elemental analysis of 0.10 or less, and an average particle size (D v50 ) of from 1 to 8 µm; and the graphitic material has a true density (Á Bt ) determined by a pycnometer method using butanol of 2.15 g/cm 3 or greater. The true density (Á Bt ) of the non-graphitic carbon material is preferably 1.52 g/cm 3 or greater and less than 2.15 g/cm 3 .

摘要翻译： 提供相对于体积具有高放电容量和优异的循环特性的用于非水电解质二次电池等的负极材料。 本发明的非水电解质二次电池用负极材料含有包含非石墨质碳材料和石墨质材料的碳材料混合物作为活性物质。 在该碳材料混合物中，非石墨质碳材料通过元素分析测定的氢原子与碳原子的原子比（H / C）为0.10以下，平均粒径（D v50）为1〜8 微米; 并且石墨材料具有通过使用丁醇的比重瓶法测定的2.15g / cm 3或更大的真密度（ρBt）。 非石墨质碳材料的真密度（αBt）优选为1.52g / cm 3以上且小于2.15g / cm 3。

公开(公告)号：EP2894702A4

公开(公告)日：2016-06-01

申请号：EP13835914

申请日：2013-08-30

申请人： KUREHA CORP ,  KUREHA BATTERY MATERIALS JAPAN CO LTD

发明人： KOMATSU MAYU ,  EBIHARA YASUSHI ,  WAKAHOI TAKASHI ,  TADA YASUHIRO ,  SONOBE NAOHIRO ,  SUZUKI MAO ,  OKADA KAYOKO ,  HATAMOCHI AKITOSHI ,  IMAJI MAKOTO ,  IKEYAMA YASUFUMI ,  KOBAYASHI SHOTA

IPC分类号： H01M4/587 ,  C01B31/02 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0567

CPC分类号： H01M4/587 ,  B01D11/02 ,  C01B32/05 ,  H01M4/622 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2220/20 ,  H01M2300/0025 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

公开(公告)号：EP3139428A4

公开(公告)日：2017-03-08

申请号：EP15774285

申请日：2015-03-27

申请人： KUREHA CORP

发明人： KOBAYASHI SHOTA ,  IKEYAMA YASUFUMI ,  TADA YASUHIRO ,  SONOBE NAOHIRO ,  KOMATSU MAYU

IPC分类号： H01M4/587 ,  H01M4/36 ,  H01M10/0566

CPC分类号： H01M4/587 ,  C01B32/05 ,  C01P2006/10 ,  C01P2006/40 ,  C01P2006/80 ,  H01G11/24 ,  H01G11/38 ,  H01G11/42 ,  H01G11/50 ,  H01M4/364 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/20 ,  Y02E60/122 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

摘要： A carbonaceous material for a negative electrode of a non-aqueous electrolyte secondary battery with high energy density relative to volume and excellent cycle characteristics is provided. The negative electrode material for a non-aqueous electrolyte secondary battery of the present invention includes a carbon material mixture including, as an active material, a plurality of non-graphitic carbon materials. The carbon material mixture has a true density (Á Bt ) determined by a pycnometer method using butanol of 1.60 g/cm 3 or greater and 2.05 g/cm 3 or less, an atom ratio (H/C) of hydrogen atoms to carbon atoms determined by elemental analysis of 0.10 or less, and a discharge capacity at from 0 to 0.1 V based on a lithium reference electrode of 80 mAh/g or greater and 230 mAh/g or less.