公开(公告)号：US20060014077A1

公开(公告)日：2006-01-19

申请号：US11182411

申请日：2005-07-15

申请人： Michiru Hatou ,  Mitsuhiro Takeno ,  Takao Kuromiya

发明人： Michiru Hatou ,  Mitsuhiro Takeno ,  Takao Kuromiya

IPC分类号： H01M4/48 ,  B05D5/12

CPC分类号： H01M4/131 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2004/027

摘要： A process of producing a positive electrode for lithium secondary batteries, including: at least, a coating preparing step of preparing a coating for a positive electrode material that includes an active material, which is a Li-containing mixed oxide, a conductive additive, a binder and a solvent; a coating step of coating the coating for a positive electrode material onto a current collector; a drying step of removing the solvent from the coating coated on the current collector; and a rolling step, wherein in the above described coating preparing step and coating step, the ratio of the total volume of the active material and the conductive additive to the volume of the solvent in the coating is kept in the range expressed by the following equation: 0.05≦(volume of active material 1c+volume of conductive additive 1d)/volume of solvent≦1.00.

摘要翻译： 一种锂二次电池用正极的制造方法，其特征在于，至少包括：制备包含作为含Li的混合氧化物的活性物质的正极材料用涂料的导电性添加剂，导电性添加剂 粘合剂和溶剂; 将正极材料用涂料涂布在集电体上的涂布工序; 从涂布在集电体上的涂层除去溶剂的干燥工序; 和轧制步骤，其中在上述涂料制备步骤和涂布步骤中，活性材料和导电添加剂的总体积与涂料中溶剂体积的比率保持在由下式表示的范围内 ：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.05 <=（活性物质的体积+导电添加剂的体积d d）/溶剂的体积<= 1.00。 <？in-line-formula description =“In-line Formulas”end =“tail”？>