Green Phytic Acid-Assisted Synthesis of LiMn_1-xFe_xPO₄/C Cathodes for High-Performance Lithium-Ion Batteries.

ABSTRACT: As a promising cathode material, olivine-structured LiMnPO₄ holds enormous potential for lithium-ion batteries. Herein, we demonstrate a green biomass-derived phytic-acid-assisted method to synthesize a series of LiMn_1-xFe_xPO₄/C composites. The effect of Fe doping on the crystal structure and morphology of LiMnPO₄ particles is investigated. It is revealed that the optimal Fe doping amount of x = 0.2 enables a substantial enhancement of interfacial charge transfer ability and Li⁺ ion diffusion kinetics. Consequently, a large reversible capacity output of 146 mAh g^-1 at 0.05 C and a high rate capacity of 77 mAh g^-1 at 2 C were acquired by the as-optimized LiMn_0.8Fe_0.2PO₄/C

SUBMITTER: Li Y 

PROVIDER: S-EPMC11357480 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature