Comprehensive Review of Synthesis, Structure, and Electrochemical Performance of LiFePO 4

ABSTRACT Driven by the growth of the electric vehicle (EV) market, lithium‐ion batteries have gained more attention. Olivine‐structured lithium iron phosphate (LiFePO 4 , LFP) nanomaterials are the most effective cathode materials for lithium‐ion battery applications. In this paper, we review recent advances in LFP cathodes through a unified crystal structure–synthesis–performance–manufacturing framework. We discuss how precursor chemistry, synthesis routes, morphology control, carbon engineering, and doping strategies govern phase formation, charge transport, and electrochemical behavior. Particular attention is given to Fe 2+ stabilization, synthesis strategy for specific morphology and performance, and emerging recycling and regeneration technologies. We further highlight opportunities in solid‐state batteries, data‐driven materials discovery, and operation under extreme conditions, with fast charging and high‐tap‐density electrode design. By connecting fundamental materials design with industrial implementation, this review provides a roadmap for translating laboratory innovations into next‐generation LFP technologies for sustainable transportation and grid‐scale energy storage.