Probing Capacity Trends in MLi₂Ti₆O₁₄ Lithium-Ion Battery Anodes Using Calorimetric Studies.

ABSTRACT: Due to higher packing density, lower working potential, and area specific impedance, the MLi₂Ti₆O₁₄ (M = 2Na, Sr, Ba, and Pb) titanate family is a potential alternative to zero-strain Li₄Ti₅O₁₂ anodes used commercially in Li-ion batteries. However, the exact lithiation mechanism in these compounds remains unclear. Despite its structural similarity, MLi₂Ti₆O₁₄ behaves differently depending on charge and size of the metal ion, hosting 1.3, 2.7, 2.9, and 4.4 Li per formula unit, giving charge capacity values from 60 to 160 mAh/g in contrast to the theoretical capacity trend. However, high-temperature oxide melt solution calorimetry measurements confirm strong correlation between thermodynamic st

SUBMITTER: Jayanthi K 

PROVIDER: S-EPMC9685767 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature