From theory to practice: Optimizing Mg2+ ratios in spinel MgV2O4 for elevated performance cathode in aqueous zinc-ion batteries

Wang, Zhiwen; Zhang, Yu; Ye, Hang; Cheng, Huanhuan; Cai, Xuanxuan; Wei, Mengdong; Gu, Yaoyu; Liu, Chunsheng; Pan, Yanliang; Jia, Dianzeng; Lin, He

doi:10.1016/j.est.2024.110622

Cited by 3 publications

(1 citation statement)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their superior zinc storage capacities and remarkable cyclability position them as compelling candidates in the quest for high-performance energy storage solutions [24,25]. Despite these advantages, a critical bottleneck in the deployment of these materials is the electrostatic attraction between Zn 2+ ions and vanadium oxide layers.…”

Section: Introductionmentioning

confidence: 99%

Zinc Storage Performance of Oxygen-Deficient NH4V3O8: Theoretical and Experimental Study

Lin,

Cai,

Zhang

2024

Inorganics

Self Cite

View full text Add to dashboard Cite

Using density functional theory (DFT), the density of states of NH4V3O8 (NVO) was analyzed pre- and post-oxygen defect (Od) formation. The findings revealed a reduced bandgap in NVO after Od introduction, emphasizing the role of Od in enhancing conductivity of the material, thus improving its electrochemical attributes. Through the water bath method, both NVO and its oxygen-deficient counterpart, (NH4)2V10O25·8H2O (NVOd), were synthesized as potential cathode materials for aqueous zinc-ion batteries (AZIBs). Experimental outcomes resonated with DFT predictions, highlighting the beneficial role of oxygen defects in boosting electrical conductivity. Notably, the refined material displayed a remarkable capacity of 479.3 mAh g−1 at 0.1 A g−1, underscoring its promise for advanced energy storage solutions.

show abstract

Section: Introductionmentioning

confidence: 99%