Experimental and DFT analysis of structural, optical, and electrical properties of Li3xLa2/3-xTiO3 (3x = 0.1, 0.3 and 0.5) solid electrolyte

Transient Ruddlesden–Popper-Type Defects and Their Influence on Grain Growth and Properties of Lithium Lanthanum Titanate Solid Electrolyte

“…A band gap for Li 0.33 La 0.56 TiO 3 , Li 0.167 La 0.61 TiO 3 , and Ti- and O-deficient Li 0.33 La 0.56 TiO 3 , calculated from the density of states (DOS), were 1.67, 1.92, and 1.96 eV, respectively (Figure S11). Similar values were also obtained by Chouiekh et al (2023) …”

“…A band gap for Li 0.33 La 0.56 TiO 3 , Li 0.167 La 0.61 TiO 3 , and Ti-and O-deficient Li 0.33 La 0.56 TiO 3 , calculated from the density of states (DOS), were 1.67, 1.92, and 1.96 eV, respectively (Figure S11). Similar values were also obtained by Chouiekh et al (2023). 46 The in Figure 5), the formation of Li 2 La 2 Ti 3 O 10 phase is energetically more favorable compared to the LLTO perovskite (eqs 5−7), and therefore, microstructure development starts with the formation of grains that contain dense sequences of the layered RP-type Li 2 La 2 Ti 3 O 10 phase (Figure 2).…”

“…Similar values were also obtained by Chouiekh et al (2023). 46 The in Figure 5), the formation of Li 2 La 2 Ti 3 O 10 phase is energetically more favorable compared to the LLTO perovskite (eqs 5−7), and therefore, microstructure development starts with the formation of grains that contain dense sequences of the layered RP-type Li 2 La 2 Ti 3 O 10 phase (Figure 2). The formation of this phase is preferred in the beginning when the phase equilibrium is shifted toward the Li-and La-rich Li 2 La 2 Ti 3 O 10 phase.…”

Review on Interface Issues between a Garnet Li7La3Zr2O12 Solid Electrolyte and Li Anode: Advances and Perspectives

“…Their excellent extensibility and toughness render them highly promising in the field of flexible batteries. However, challenges such as low ionic conductivity, poor structural stability, and flammability must be addressed. , Oxide-based SEs are primarily divided into four categories: perovskite-type represented by Li 3 x La 2/3– x TiO 3 , , NASICON-type represented by Li 1+ x Al x Ti 2– x (PO 4 ) 3 , LISICON-type represented by Li 2+2 x Zn 1– x SiO 4 , and garnet-type represented by Li 7 La 3 Zr 2 O 12 (LLZO). − Oxide-based high SEs exhibit great electrical ionic conducting properties, a wide electrochemical stability window (ESW), and superior strength of machinery, making them the most hopeful cases for practical application among SEs. , …”