| 摘要 |
The invention relates to surface modified carbon-coated redox LiFePO4, reversible to lithium ion, and to battery cathode coating obtained from. In view to improve properties of carbon-coated lithium iron phosphate, inventors, after intensive R&D activities, discovered that its usage value could be efficiently improved, by taking advantage of carbon functionalities (such as but not limited to -COOH, -OH, -COR) present on the carbon surface from the C-LiFePO4 synthesis or post- treatment to induce carbon surface modification by grafting of various chemical functionalities on carbon surface (designed as "SMC-LiFePO4"), such as a better cathode powder wettability and a better adhesion between cathode particles and the binder. |
