Title:
LITHIUM IRON MANGANESE PHOSPHATE POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/082539
Kind Code:
A1
Abstract:
Disclosed in the present invention are a lithium iron manganese phosphate positive electrode material and a preparation method therefor and a use thereof. The preparation method comprises the following steps: (1) mixing manganese acetylacetonate, iron acetylacetonate, a phosphorus source and an organic solvent to obtain an organic solution, wherein manganese in manganese acetylacetonate is trivalent manganese, and iron in iron acetylacetonate is trivalent iron; (2) heating the organic solution obtained in step (1) and then evaporating to dryness to obtain a solid gel; and (3) mixing a lithium source, a carbon source, water and the solid gel obtained in step (2), drying, calcining under an inert gas, and cooling to obtain the lithium iron manganese phosphate positive electrode material. According to the method, the lithium iron manganese phosphate positive electrode material in which iron and manganese are uniformly mixed can be prepared, and the positive electrode material has relatively high specific capacity and cycle performance.
More Like This:
Inventors:
YU HAIJUN (CN)
WANG TAO (CN)
XIE YINGHAO (CN)
LI AIXIA (CN)
ZHANG XUEMEI (CN)
LI CHANGDONG (CN)
WANG TAO (CN)
XIE YINGHAO (CN)
LI AIXIA (CN)
ZHANG XUEMEI (CN)
LI CHANGDONG (CN)
Application Number:
PCT/CN2023/082867
Publication Date:
April 25, 2024
Filing Date:
March 21, 2023
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
International Classes:
C01B25/45; H01M4/58; H01M10/0525
Domestic Patent References:
| WO2015003568A1 | 2015-01-15 |
Foreign References:
| CN104752718A | 2015-07-01 | |||
| CN103702934A | 2014-04-02 | |||
| CN115072695A | 2022-09-20 | |||
| JP2015032345A | 2015-02-16 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
Download PDF: