公开(公告)号：EP2314545A4

公开(公告)日：2014-09-17

申请号：EP09725552

申请日：2009-03-26

申请人： TODA KOGYO CORP

发明人： KOBINO MASASHI ,  FUJITA KATSUHIRO ,  OKAZAKI SEIJI ,  HONDA TOMOHIRO ,  NISHIO TAKAHISA ,  FUJIMOTO RYOTA ,  HIRAMOTO TOSHIAKI ,  SATO KOUTA ,  ITO AKINO ,  OKINAKA KENJI ,  FUJINO SHOICHI ,  NISHIMOTO KAZUSHI ,  UEGAMI MASAYUKI ,  MORITA DAISUKE ,  KAJIYAMA AKIHISA

IPC分类号： C01G51/04 ,  H01M4/48 ,  H01M4/52 ,  H01M10/36

CPC分类号： C01G51/04 ,  C01G51/42 ,  C01P2002/52 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052

摘要： The present invention relates to cobalt oxyhydroxide particles and lithium cobaltate particles which have a high density and a uniformly grown crystal structure. These objects of the present invention can be achieved by cobalt oxyhydroxide particles having an average secondary particle diameter (D50) of 3.0 to 25.0 µm, a BET specific surface area (BET) of 0.1 to 20.0 m 2 /g, a tap density (TD) of 1.0 to 3.5 g/cm 3 in which the average secondary particle diameter (D50) and the BET specific surface area (BET) of the cobalt oxyhydroxide particles satisfy the relational formula; and by lithium cobaltate particles having an average secondary particle diameter (D50) of 15.0 to 25.0 µm, a specific surface area (BET) of 0.10 to 0.30 m 2 /g, a compressed density (CD; as measured by applying a pressure of 2.5 t/cm 2 thereto) of 3.65 to 4.00 g/cm 3 . The cobalt oxyhydroxide particles are useful as a precursor of a positive electrode active substance (lithium cobaltate particles) used in a non-aqueous electrolyte secondary battery, and the lithium cobaltate particles are useful as a the positive electrode active substance used in a non-aqueous electrolyte secondary battery.

公开(公告)号：EP2492243A4

公开(公告)日：2015-01-21

申请号：EP10825034

申请日：2010-10-21

申请人： TODA KOGYO CORP

发明人： KOBINO MASASHI ,  FUJITA KATSUHIRO ,  FUJINO SHOICHI ,  KAJIYAMA AKIHISA ,  MASAKI RYUTA ,  MORITA DAISUKE ,  YAMAMURA TAKAYUKI ,  KODAIRA TETSUYA ,  YAMASAKI MINORU ,  OKAZAKI SEIJI ,  HIRAMOTO TOSHIAKI ,  ITO AKINO ,  ODA WATARU ,  OKINAKA KENJI

IPC分类号： C01G53/00 ,  H01M4/505 ,  H01M4/525

CPC分类号： C01G45/006 ,  C01G45/1221 ,  C01G51/006 ,  C01G51/44 ,  C01G53/006 ,  C01G53/42 ,  C01G53/44 ,  C01P2002/52 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y10T428/2982

摘要： The present invention relates to nickel-cobalt-manganese-based compound particles which have a volume-based average secondary particle diameter (D50) of 3.0 to 25.0 µm, wherein the volume-based average secondary particle diameter (D50) and a half value width (W) of the peak in volume-based particle size distribution of secondary particles thereof satisfy the relational formula: W ‰¤ 0.4 x D50, and can be produced by dropping a metal salt-containing solution and an alkali solution to an alkali solution at the same time, followed by subjecting the obtained reaction solution to neutralization and precipitation reaction. The nickel-cobalt-manganese-based compound particles according to the present invention have a uniform particle size, a less content of very fine particles, a high crystallinity and a large primary particle diameter, and therefore are useful as a precursor of a positive electrode active substance used in a non-aqueous electrolyte secondary battery.

摘要翻译： 本发明涉及一种具有3.0至25.0微米的基于体积的平均二次粒径（D50）的镍 - 钴 - 锰类化合物颗粒，worin体积基准的平均二次粒径（D50）和半值宽度 在二次粒子的体积基准的粒径分布中的峰的（W）满足关系式：W‰¤0.4×D50，并且可以通过在在碱性溶液中滴下含金属盐的溶液和在碱性溶液中要生产 在Sametime，接着进行将所得到的反应溶液中以中和和沉淀反应。 所述基于镍 - 钴 - 锰化合物颗粒雅丁到本发明具有均匀的颗粒尺寸，非常细的颗粒的含量少，高结晶度和大的一次粒径，并且因此作为正极的前体是有用 在非水电解质二次电池中使用的活性物质。