发明名称 |
FERRIC PHOSPHATE HYDRATE PARTICLE POWDER AND PROCESS FOR PRODUCTION THEREOF, OLIVINE-TYPE LITHIUM IRON PHOSPHATE PARTICLE POWDER AND PROCESS FOR PRODUCTION THEREOF, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY |
摘要 |
The present invention relates to ferric phosphate hydrate particles for use as a precursor of olivine type lithium iron phosphate particles, wherein the ferric phosphate hydrate particles exhibit at least one crystal structure selected from the group consisting of a strengite crystal structure and a meta-strengite (phosphosiderite) crystal structure, and have a sodium (Na) content of not more than 100 ppm and a molar ratio of phosphorus to iron (phosphorus/iron) of not less than 0.9 and not more than 1.1. The ferric phosphate hydrate particles according to the present invention are suitable as a precursor of olivine type lithium iron phosphate particles for a positive electrode substance of non-aqueous electrolyte secondary batteries, and are in the form of fine particles and have a very small content of impurities. |
申请公布号 |
KR20120079058(A) |
申请公布日期 |
2012.07.11 |
申请号 |
KR20127005889 |
申请日期 |
2010.09.08 |
申请人 |
TODA KOGYO CORP. |
发明人 |
NISHIO TAKAHISA;MISHIMA YUJI;HONDA SHINGO;YAMAMOTO HIROSHI |
分类号 |
C01B25/45;C01B25/37;H01M4/58 |
主分类号 |
C01B25/45 |
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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