METHOD FOR PREPARING LITHIUM IRON PHOSPHATE FROM FERRIC HYDROXYPHOSPHATE, AND USE THEREOF

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欧洲专利局

外文摘要：The present disclosure provides a method for preparing lithium iron phosphate from ferric hydroxyphosphate, including: purifying ferrous sulfate to form a ferrous sulfate solution, adding hydrogen peroxide, phosphoric acid, an ammonium dihydrogen phosphate solution and ammonia water into the ferrous sulfate solution and then reacting to form a mixed slurry, holding the mixed slurry at a temperature for a period of time, and then washing with water and subjecting to press filtration to form ferric hydroxyphosphate precursors with different iron-phosphorus ratios; then flash drying, sintering at a high temperature, and pulverizing to obtain ferric hydroxyphosphate precursors with different iron-phosphorus ratios and different specific surface areas.

申请号：

US20231397102

申请日：

2023-12-27

公开日：

2024-04-18

IPC分类：

C01B-25/45、C01B-25/37、H01M-4/58、H01M-10/0525

申请人：

HUBEI RT ADVANCED MATERIALS GROUP COMPANY LIMITED, Huangshi, CN

发明人：

Sun, Jie, Huangshi, CN、Yang, Ji, Huangshi, CN、Wei, Yihua, Huangshi, CN、He, Zhonglin, Huangshi, CN、He, Jianhao, Huangshi, CN、Xu, Zhongzhu, Huangshi, CN、Mei, Jing, Huangshi, CN、Cheng, Guangchun, Huangshi, CN、Lin, Shuo, Huangshi, CN、Xu, Cheng, Huangshi, CN、Li

国别省市代码：

美国(US)