Degradation of Li3V2(PO4)3-based full-cells containing Li4Ti5O12 or Li3.2V0.8Si0.2O4 anodes modeled by charge-discharge cycling simulations

Co-substitution Strategy for Boosting Rate-Capability of Lithium-Superionic-Conductor (LISICON)-Type Anode Materials in γ-Li3VO4–Li4GeO4–Li3PO4 Quasi-Ternary-System

“…30 The crystal structure of γ-LVO, an analogue of γ-Li 3 PO 4 , consists of a three-dimensional corner-shared network of LiO 4 and VO 4 tetrahedra with interstitial (vacant) octahedral sites, showing a high Li + conductivity (10 -7 -10 -5 S cm -1 ) [31][32][33] owing to weakened Li-O bonds. 34 Theoretical capacity for LVO is 394 mAh g -1 based on the two-electron reaction of vanadium (V 5+ /V 3+ ) 29 with an optimal reaction potential (0.4-1.3 V vs Li/Li + ), 30,35 leading to a relatively high cell voltage while maintaining a sufficient margin for Li-metal deposition at 0 V vs Li/Li + . In such potetial range, Li + insertion/desertion within γ-LVO materials smoothly proceeds with a negligible volume change during charge/discharge cycles, leading to high rate and high-cycle performances.…”

Designing strategies of advanced electrode materials for high-rate rechargeable batteries

“…97,98 Most importantly, they possess a high lithium insertion potential over 1.5 V and sodium insertion voltage of 0.6 V, which effectively compensate the poor safety of the Li/Na dendrite formation, and greatly improves the safety performance of the batteries. 99–101…”

“…97,98 Most importantly, they possess a high lithium insertion potential over 1.5 V and sodium insertion voltage of 0.6 V, which effectively compensate the poor safety of the Li/Na dendrite formation, and greatly improves the safety performance of the batteries. [99][100][101] Firstly, understanding the rapid lithium ions transfer in lithium titanate can help in understanding its limitation. Wang et al 102 investigated the rapid kinetic pathway of Li + ions in the fast-charging Li (16C) , suggesting that the rapid lithium-ion migration occurs at the two-phase interface containing facesharing Li polyhedra with a low activation barrier.…”

Enhancing the Phase Stability of γ-Phase Li3VO4 for High-Performance Hybrid Supercapacitors: Investigating Influential Factors and Mechanistic Insights

“…However, the challenging preparation process of this crystal structure limits its feasibility for large-scale production. To address these challenges, researchers have explored the substitution of vanadium ions (V 5+ ) in LVO with various transition metal ions (M 4+ ), resulting in the formation of different polymorphs. ,− Among the various potential polymorphs and solid-solution systems, particular attention has been drawn to the γ-phase of LVO (γ-LVO). This interest arises from its exceptional ionic conductivity, stemming from the LISICON (Lithium Super Ionic CONductor) structure. − γ-LVO exhibits pseudocapacitive charge/discharge behavior along with high-power and high-cycle properties, comparable to the cation-disordered LVO .…”