1, the synthetic materials are different. High-temperature solid-state synthesis usually takes ferrous oxalate as iron source and Fe2+ as iron source. Solid-state combustion method is to mix insoluble salt precursors and organic matter evenly and then burn them.
2. The purpose is different. The high-temperature solid-state method is mainly to synthesize LiFePO4, and the solid-state combustion method is mainly to synthesize ceramic powder materials.