Polyurethane-coated lithium iron phosphate composite material as well as preparation method and application thereof
The invention relates to the technical field of lithium battery materials, and discloses a polyurethane-coated lithium iron phosphate composite material and a preparation method and application thereof, the chemical general formula of the material is LiFe1-x-yTixMgyPO4/C, x is more than or equal to...
Saved in:
Main Authors | , , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
24.10.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to the technical field of lithium battery materials, and discloses a polyurethane-coated lithium iron phosphate composite material and a preparation method and application thereof, the chemical general formula of the material is LiFe1-x-yTixMgyPO4/C, x is more than or equal to 0.01 and less than or equal to 0.05, y is more than or equal to 0.01 and less than or equal to 0.05, and x + y is more than or equal to 0.02 and less than or equal to 0.1. The preparation method comprises the following steps: step 1, carrying out hydrothermal reaction on NH4H2PO4, Fe (NO3) 3.9 H2O and a surfactant to obtain an iron phosphate precursor; step 2, mixing the iron phosphate precursor, a lithium source, a titanium source and a magnesium source to obtain LiFe < 1-x-y > Ti < x > MgyPO4; and step 3, mixing LiFe < 1-x-y > Ti < x > MgyPO4 and polyurethane or modified polyurethane, carrying out ball milling, and calcining to obtain the lithium iron phosphate composite material. According to the invention, the |
---|---|
Bibliography: | Application Number: CN202310784358 |