Study on the performance of primary/secondary particle artificial graphite anode materials in lithium iron phosphate batteries
XIE Jun
GAO Hang
LI Mingjiang
Abstract：In recent years,with the rapid development of the new energy industry,lithium iron phosphate(LFP)batteries,a key component of this sector,have found widespread application in automotive power,energy storage systems,and consumer electronics(3C).With the increasing demands for battery cycle life and rate performance,the study of battery materials has become particularly crucial.Among anode materials,graphite stands out due to its excellent conductivity and lithium storage capacity,making it a focal point of research and application.Compared to natural graphite,artificial graphite typically demonstrates significant advantages in cycle performance,electrolyte compatibility,energy density,processability,and application areas.In this context,this paper primarily investigates the impact of primary and secondary particle artificial graphite on the performance of LFP batteries,specifically evaluated the differences in rate performance,direct current internal resistance,and cycle stability when used as anode materials in LFP pouch batteries.The research findings indicate that,compared to primary particles graphite,secondary particles graphite exhibited superior rate performance,lower direct current internal resistance,and higher cycle capacity retention in LFP batteries.Therefore,secondary particles graphite shows greater potential for application in terms of rate performance and cycle stability,particularly in scenarios requiring higher performance standards.
Keywords：lithium iron phosphate batteryprimary particle graphitesecondary particle graphiteanode materials
Publication Date：2025-08-25
Online Publishing Date：2025-09-22(First online date of this platform, not the publication date of the document)
Pages：5( 268-272 )