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2 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
2 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
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机译：2磷酸铁水合物颗粒粉末及其生产方法橄榄型磷酸铁锂颗粒粉末及其生产方法和非水电解质二次电池
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摘要
The present invention is a precursor of an olivine-type iron phosphate lithium particle powder, wherein the crystal structure is at least one of a strutstone structure and a metastestric structure, the Na content is 100 ppm or less, and the molar ratio of phosphorus / iron is 0.9 or more and 1.1 or less And more particularly to a ferric phosphate hydrate powder. The ferric phosphate hydrate powder of the present invention is preferably used as a precursor of the olivine-type lithium iron phosphate powder for a non-aqueous electrolyte secondary battery positive electrode active material, and is fine and has very few impurities.
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