Title:
METHOD FOR PREPARING MESOPOROUS IRON PHOSPHATE BY INDUCTION BY BLOCK COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2024/027214
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for preparing mesoporous iron phosphate by induction by a block copolymer, comprising: adding a certain mass of a dispersing agent into an iron salt solution for uniform dispersion; uniformly mixing a structure-directing agent solution and a phosphorus source solution, and then adding the mixture into the uniformly dispersed iron salt solution; adding an oxidizing agent and stirring for reaction; and after the reaction is completed, washing, drying and calcining to obtain mesoporous iron phosphate. In the present invention, the use of different dispersing agents and of acidifiers at different concentrations for treatment of structure-directing agent block copolymers can induce reactions between disodium hydrogen phosphate dihydrate and iron salt solutions to prepare mesoporous iron phosphate, so that different mesoporous iron phosphate having adjustable morphologies are produced, thereby meeting requirements for positive electrode materials for lithium-ion batteries in different application scenarios; as a precursor product of lithium iron phosphate, the mesoporous iron phosphate is environmentally friendly and has high economic added value.
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Inventors:
WANG JIE (CN)
LUO BAORUI (CN)
SHEN WEIYUN (CN)
ZHANG CHI (CN)
ZHENG LEI (CN)
TAN HAIQUAN (CN)
WANG ZUJING (CN)
WANG DONG (CN)
LUO BAORUI (CN)
SHEN WEIYUN (CN)
ZHANG CHI (CN)
ZHENG LEI (CN)
TAN HAIQUAN (CN)
WANG ZUJING (CN)
WANG DONG (CN)
Application Number:
PCT/CN2023/089802
Publication Date:
February 08, 2024
Filing Date:
April 21, 2023
Export Citation:
Assignee:
YIDU XINGFA CHEMICAL CO LTD (CN)
International Classes:
C01B25/37; B82Y30/00; B82Y40/00
Foreign References:
| CN115448275A | 2022-12-09 | |||
| CN109052358A | 2018-12-21 | |||
| CN107895796A | 2018-04-10 | |||
| CN111224103A | 2020-06-02 | |||
| CN110255521A | 2019-09-20 | |||
| US20130143123A1 | 2013-06-06 |
Attorney, Agent or Firm:
YICHANG THREE GORGES PATENT (CN)
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