Elucidating the Lithiation Process in Fe_3-δO₄ Nanoparticles by Correlating Magnetic and Structural Properties.

ABSTRACT: Due to their high potential energy storage, magnetite (Fe₃O₄) nanoparticles have become appealing as anode materials in lithium-ion batteries. However, the details of the lithiation process are still not completely understood. Here, we investigate chemical lithiation in 70 nm cubic-shaped magnetite nanoparticles with varying degrees of lithiation, x = 0, 0.5, 1, and 1.5. The induced changes in the structural and magnetic properties were investigated using X-ray techniques along with electron microscopy and magnetic measurements. The results indicate that a structural transformation from spinel to rock salt phase occurs above a critical limit for the lithium concentration (x_c), which is determined to be between 0.5< x_c ≤ 1 for

SUBMITTER: Ulusoy S 

PROVIDER: S-EPMC10982998 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature