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Title:
REGULAR OCTAHEDRAL IRON PHOSPHATE AND PREPARATION METHOD THEREFOR, LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE MATERIAL AND LITHIUM IRON PHOSPHATE BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/046058
Kind Code:
A1
Abstract:
The present application discloses a regular octahedral iron phosphate and a preparation method therefor, a lithium iron phosphate positive electrode material, and a lithium iron phosphate battery. The preparation method for the regular octahedral iron phosphate comprises: obtaining a mixed solution A containing a phosphate and a ferrous salt, the mixed solution A being an acidic solution; mixing the mixed solution A with an oxidizing agent, and oxidizing ferrous ions in the mixed solution A into ferric ions, to obtain a slurry A; mixing the slurry A with a phosphoric acid solution, and performing a reaction under heating conditions to obtain a slurry B; performing solid-liquid separation, washing, drying, and calcination processes to the slurry B, to obtain a regular octahedral iron phosphate.

Inventors:
TONG QIUTAO (CN)
LIU MIN (CN)
MA YUE (CN)
HOU YUTING (CN)
Application Number:
PCT/CN2023/111816
Publication Date:
March 07, 2024
Filing Date:
August 08, 2023
Export Citation:
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Assignee:
QUZHOU HUAYOU COBALT NEW MAT CO LTD (CN)
ZHEJIANG HUAYOU COBALT CO LTD (CN)
ZHEJIANG YOUSHAN NEW MATERIAL TECH CO LTD (CN)
International Classes:
C01B25/37; C01B25/45; H01M4/58
Foreign References:
CN115520845A2022-12-27
CN114644327A2022-06-21
CN102491302A2012-06-13
CN105406035A2016-03-16
DE102012100128A12013-07-11
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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