公开(公告)号：US20090278082A1

公开(公告)日：2009-11-12

申请号：US11910307

申请日：2006-03-31

申请人： Hitoshi Takebayashi ,  Makoto Hongu ,  Tetsuro Tojo ,  Shinji Saito ,  Takehiko Sawai ,  Katsuyuki Negishi ,  Masahiro Kikuchi

发明人： Hitoshi Takebayashi ,  Makoto Hongu ,  Tetsuro Tojo ,  Shinji Saito ,  Takehiko Sawai ,  Katsuyuki Negishi ,  Masahiro Kikuchi

IPC分类号： H01M4/58 ,  H01M4/88

CPC分类号： H01M4/582 ,  C01G51/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/40 ,  H01M4/02 ,  H01M4/131 ,  H01M2004/021 ,  H01M2004/028

摘要： It is an object of the present invention to provide a cathode active material capable of reducing degradation in an operation voltage and capacity as compared conventionally when used for a lithium ion secondary battery, and a method for manufacturing the same. The cathode active material contains a composite oxide of lithium and a transition metal (s), wherein a reduction loss of TLC in the composite oxide is 20 to 60%. Also, the composite oxide has a particle diameter of 0.5 to 100 μm, and is preferably fluorinated. The method for manufacturing the cathode active material includes the step of fluorinating the cathode active material. The composite oxide has a particle diameter of 0.5 to 100 μm. The fluorinating step is to fluorinate the composite oxide in a reaction vessel under conditions where fluorine gas partial pressure is 1 to 200 kPa, a reaction time is 10 minutes to 10 days, and a reaction temperature is −10 to 200° C.

摘要翻译： 本发明的一个目的是提供一种阴极活性材料及其制造方法，该阴极活性材料能够降低与常规用于锂离子二次电池时相比的操作电压和容量的降低。 正极活性物质含有锂和过渡金属的复合氧化物，复合氧化物中的TLC的还原损失为20〜60％。 此外，复合氧化物的粒径为0.5〜100μm，优选为氟化。 用于制造正极活性物质的方法包括氟化正极活性物质的步骤。 复合氧化物的粒径为0.5〜100μm。 氟化步骤是在氟气分压为1〜200kPa，反应时间为10分钟〜10天，反应温度为-10〜200℃的条件下，在反应容器中氟化复合氧化物。

公开(公告)号：US20090239145A1

公开(公告)日：2009-09-24

申请号：US12092485

申请日：2006-10-06

申请人： Hitoshi Takebayashi ,  Makoto Hongu ,  Tetsuro Tojo ,  Shinji Saito ,  Takehiko Sawai ,  Katsuyuki Negishi ,  Masahiro Kikuchi

发明人： Hitoshi Takebayashi ,  Makoto Hongu ,  Tetsuro Tojo ,  Shinji Saito ,  Takehiko Sawai ,  Katsuyuki Negishi ,  Masahiro Kikuchi

IPC分类号： H01M10/26

CPC分类号： H01M10/0525 ,  H01M2/16 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/058

摘要： A high power lithium-ion secondary battery having an increased capacity and capable of maintaining high discharge voltage and repeating charging/discharging high current. A lithium-ion secondary battery having; an electrode group formed by laminating or winding a negative electrode layer and a positive electrode layer so as to interpose a separator made of synthetic resin, the negative electrode layer containing a material capable of intercalating/deintercalating lithium-ion, and a positive electrode layer including a lithium-containing metallic oxide; and a non-aqueous electrolyte containing lithium salt, where the electrode group is immersed. The positive electrode material unit contains a fluorinated lithium-containing metallic oxide as a main material, and the separator possesses a hydrophilic group. Further, the positive electrode material preferably contains a main material including LiNixCoyMnzO2, where 0.4≦x≦1, 0≦y≦0.2, 0≦z 0.2, x+y+z=1.

摘要翻译： 一种高功率锂离子二次电池，其具有增加的容量并且能够保持高放电电压并且重复充电/放电高电流。 一种锂离子二次电池，具有： 通过层叠或卷绕负极层和正极层形成的电极组，以便插入由合成树脂制成的隔板，所述负极层含有能够嵌入/脱嵌锂离子的材料，以及包括 含锂金属氧化物; 和含有锂盐的非水电解质，浸渍电极组。 正极材料单元包含含氟的含锂金属氧化物作为主要材料，隔膜具有亲水性基团。 此外，正极材料优选含有包含LiNixCoyMnzO 2的主要材料，其中0.4≤x≤1,0<= y <= 0.2,0 <= z 0.2，x + y + z = 1。