祝贺仝云霄同学论文“Hydrated Lithium Ions Intercalated V2O5 with Dual-ion Synergistic Insertion
Mechanism for High-performance Aqueous Zinc-Ion Batteries”被《Journal of Colloid and Interface
Science》，（2020 IF: 8.128）期刊接受。
Highlights
- •
-
The hydrated lithium ions act as intercalated guest species to pillar V2O5 for aqueous zinc-ion batteries.
- •
-
The Li0.45V2O5·0.89H2O cathode exhibits excellent electrochemical performance.
- •
-
The Li0.45V2O5·0.89H2O cathode possess a synergistic insertion mechanism of Zn2+ and H+.
Abstract
Li0.45V2O5·0.89H2O (LVO) was successfully synthesized by wet-mixing of LiOH·H2O and V2O5, with
subsequent hydrothermal method for the first time. The hydrated lithium ions as the intercalated guest species were
inserted into the V2O5 interlayer. The as-obtained LVO with a stable lamellar structure, enlarged interlayer space, weak
interlayer repulsive force and low molecular weight, which shows a specific capacitance of 403 mAh g-1 at 0.1 A g-1,
excellent rate capability and longlifespan with capacity retention of 86% over 1000 cycles at 10 A g-1. Furthermore, the
LVO-based AZIBs possess a synergistic insertion mechanism of Zn2+ and H+, that is the reason for its superior
performance. This work provides an efficient design strategy for synthesizing advanced cathode materials for the high-
performance Zn2+ energy storage system.
