| 发明名称 |
PROCESS FOR PRODUCING LITHIUM-CONTAINING COMPOSITE OXIDE |
| 摘要 |
A process for producing a lithium-containing composite oxide for the positive electrode of a lithium secondary cell, the composite oxide having a high volumetric capacitance density and high safety and excellent in durability in charge/discharge cycles and low-temperature characteristics. The process is for producing a lithium-containing composite oxide represented by the general formula Li<SUB>p</SUB>N<SUB>x</SUB>M<SUB>y</SUB>O<SUB>z</SUB>F<SUB>a</SUB> (wherein N is at least one element selected from the group consisting of Co, Mn, and Ni; M is at least one element selected from the group consisting of transition metals other than the N elements, Al, and alkaline earth metals; and 0.9=p=1.2, 0.95=x<2.00, 0<y=0.05, 1.9=z=4.2, and 0=a=0.05). It comprises burning a mixture comprising a lithium source, an N-element source, and an M-element source and optionally containing a fluorine source. The mixture comprises granules obtained by mixing an aqueous solution of the M-element source with the N-element source in a powdered or pulverized form to prepare a slurry and drying/granulating the slurry optionally after pulverization and a powder of the lithium source and optionally contains a powder of the fluorine source. It is burned at 700-1,100°C in an oxygenous atmosphere. |
| 申请公布号 |
WO2007037235(A1) |
申请公布日期 |
2007.04.05 |
| 申请号 |
WO2006JP319075 |
申请日期 |
2006.09.26 |
| 申请人 |
SEIMI CHEMICAL CO., LTD.;YAMADA, RYOJI;TATSUMI, KOJI;NAKAOKA, SHOGO;ITO, KENJI;HIRATSUKA, KAZUYA |
发明人 |
YAMADA, RYOJI;TATSUMI, KOJI;NAKAOKA, SHOGO;ITO, KENJI;HIRATSUKA, KAZUYA |
| 分类号 |
C01G51/00;C01G53/00;H01M4/02;H01M4/1391;H01M4/13915;H01M4/50;H01M4/505;H01M4/52;H01M4/525 |
主分类号 |
C01G51/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
