发明名称 |
NICKEL-MANGANESE COMPOSITE HYDROXIDE PARTICLES, METHOD FOR PRODUCING SAME, POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, METHOD FOR PRODUCING SAID POSITIVE ELECTRODE ACTIVE MATERIAL, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY |
摘要 |
Provided are nickel manganese composite hydroxide particles that are a precursor for forming cathode active material comprising lithium nickel manganese composite oxide having hollow structure of particles having a small and uniform particle size for obtaining a non-aqueous electrolyte secondary battery having high capacity, high output and good cyclability. When obtaining the nickel manganese composite hydroxide particles from a crystallization reaction, an aqueous solution for nucleation, which includes at least a metallic compound that contains nickel and a metallic compound that contains manganese, and does not include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt, is controlled so that the temperature of the solution is 60 °C or greater, and so that the pH value that is measured at a standard solution temperature of 25 °C is 11.5 to 13.5, and after nucleation is performed, an aqueous solution for particle growth, which includes the nuclei that were formed in the nucleation step and does not substantially include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt, is controlled so that the temperature of the solution is 60 °C or greater, and so that the pH value that is measured at a standard solution temperature of 25 °C is 9.5 to 11.5, and is less than the pH value in the nucleation step. |
申请公布号 |
EP2557068(B1) |
申请公布日期 |
2014.08.13 |
申请号 |
EP20110849900 |
申请日期 |
2011.08.26 |
申请人 |
SUMITOMO METAL MINING CO., LTD. |
发明人 |
TOYA, HIROYUKI;RYOSHI, KAZUOMI;OSAKO, TOSHIYUKI |
分类号 |
C01G53/00;H01M4/131;H01M4/1391;H01M4/505;H01M4/525;H01M10/04;H01M10/052 |
主分类号 |
C01G53/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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