Published online in Energy Storage Materials
Article on "Analysis on Electrochemical Reaction of Lithium Titanium Oxide Li4Ti5O12" by Kazuhiko Mukai et al., was published in Energy Storage Materials.
Zero-strain insertion material, Li4Ti5O12, has garnered significant attention as an ideal electrode material for long cycle-life lithium-ion batteries, owing to its negligible volume change during the electrochemical reactions. However, this same characteristic hinders in-depth understanding of the reaction mechanism for more than 30 years, restricting widespread applications to electric and hybrid electric vehicles. We thus employed the recently developed operando X-ray absorption and X-ray diffraction techniques in Toyota beamline at the synchrotron radiation facility, SPring-8, and revealed detailed structural variations at the atomic and microscopic scale. The obtained results are useful for all-solid-state lithium-ion batteries, in which robust interfaces between electrodes and electrolyte are required.
Title: Unveiling Scale Differences in the Two-phase Transformation of Li4Ti5O12 via Operando X-ray Absorption and Diffraction Studies
Authors:Kazuhiko Mukai, Takamasa Nonaka, and Takeshi Uyama
Journal Name: Energy Storage Materials
Published: 12 November 2021
https://doi.org/10.1016/j.ensm.2021.11.013