Performance Comparison of Transition Metal (Cr, Mn, Fe, Co, Ni, Cu)-Fluoride Conversion Cathodes in Thin-Film Solid-State Batteries.

ABSTRACT: Transition metal fluorides (TMFs) are promising alternatives for Li battery cathode active materials as they can show specific capacities up to 619 mAh/g for CrF₃, compared to 272 mAh/g for LiNi_0.8Mn_0.1Co_0.1O₂, a commonly used intercalation cathode. TMFs are intrinsically difficult to study due to their incompatibility with typical liquid electrolytes and the need for conductive additives to ensure sufficient utilization. In this work, thin-film solid-state devices are used to compare six transition metals mixed with LiF in a 1.1:2 TM/LiF ratio (where TM = Cr, Mn, Fe, Co, Ni, or Cu) without the influence of additive and electrolyte interactions. C/10 delithiated capacities of 540, 113, 402, 407, 566, and 143 mAh/g are shown for (Cr, Mn

SUBMITTER: Casella J 

PROVIDER: S-EPMC12569967 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature