Lithium Iron Phosphate Composite with SiCO Coating

The patent optimizes the thickness and composition parameters of the coating layers to balance electrochemical performance and tap density. By controlling the coating layer thickness and material composition ratios, the patent achieves improved electrochemical properties while minimizing the impact on tap density.

The patent applies coating material selectively and in controlled amounts on the particle surface, creating a thin functional layer that provides electrochemical benefits without excessive mass addition that would reduce tap density.

The patent replaces expensive lithium cobalt oxide with cheaper lithium iron phosphate as the base material, achieving cost reduction. The coating layers are applied in thin, controlled amounts to provide necessary performance enhancement without excessive material cost.

The patent creates a composite structure where lithium iron phosphate serves as the cost-effective base material, enhanced by thin coating layers of carbon and oxide materials. This composite approach achieves electrochemical performance comparable to or better than lithium cobalt oxide at lower cost.

The patent replaces difficult-to-synthesize lithium nickelate with easier-to-manufacture lithium iron phosphate as the base material. The simplified synthesis process of lithium iron phosphate is maintained while adding coating layers to enhance capacity performance.

The patent creates a composite where lithium iron phosphate provides the stable base structure with easy synthesis, while the carbon and oxide coating layers contribute to enhanced capacity and electrochemical performance, achieving results comparable to lithium nickelate with simpler manufacturing.