Research progress on FeF2 as a conversion-type cathode for lithium-ion batteries
RAN Yifeng
LIU Xiaoyi
ZHENG Yun
Abstract：As a critical component in lithium-ion batteries,cathode materials are critical to the performance of lithium-ion batteries,influencing both capacity and energy density.Among these,iron fluoride(FeF2)stands out due to its high theoretical specific capacity,excellent energy density,stable discharge platform,and low raw material cost,positioning it as a promising alternative to traditional cathodes like LiCoO2.This review highlights the advantages of FeF2 as a cathode material,examines its lithium storage mechanisms,and summarizes recent advancements in nanosizing and modifications through carbon or metal element coatings.Additionally,this paper assess the current research landscape and propose future directions for developing FeF2 cathode materials.
Keywords：FeF2cathode materiallithium-ion batterycathode electrolyte interphase
Publication Date：2025-12-25
Online Publishing Date：2026-01-06(First online date of this platform, not the publication date of the document)
Pages：7( 547-553 )