Shape and Size Control of LiFePO4 for High‐Performance Lithium‐Ion Batteries

Abstract Olivine‐type LiFePO 4 , which is an extensively employed cathode material in lithium‐ion batteries, has attracted much attention due to its abundance, low cost, low toxicity, and high thermal stability. However, low electronic conductivity and sluggish lithium‐ion diffusion in LiFePO 4 result in poor rate capability, which seriously limits its applications in next‐generation green and sustainable power systems. Extensive efforts have focused on exploring efficient synthetic approaches to optimize its performance by controlling the particle size and shape. In this Review, we first summarize the typical synthetic methods for LiFePO 4 and follow with a discussion of the correlation between LiFePO 4 crystal size/morphology and the associated electrochemical performance. Our overview seeks to provide insightful guidance for the design of high‐performance lithium‐ion batteries with highly efficient and cost‐effective LiFePO 4 cathode materials.