Three‐Sodium Ion Activity of a Hollow Spherical Na3V2(PO4)2F3 Cathode: Demonstrating High Capacity and Stability,Batteries & Supercaps

当前位置： X-MOL 学术 › Batteries Supercaps › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Three‐Sodium Ion Activity of a Hollow Spherical Na3V2(PO4)2F3 Cathode: Demonstrating High Capacity and Stability
Batteries & Supercaps ( IF 5.1 ) Pub Date : 2019-11-07 , DOI: 10.1002/batt.201900147
Ayan Mukherjee _{1,

2} , Tali Sharabani _{1,

2} , Ilana Perelshtein ₂ , Malachi Noked _{1,

2}

Affiliation

Na₃V₂(PO₄)₂F₃ (NVPF) is a promising cathode material for sodium ion batteries, owing to its high voltage and promising cycling profile. Nevertheless, most previous reports demonstrated only approximately 100 mAh g⁻¹ at limited operating voltage. Using a solvothermal synthesis route, we synthesized the NVPF cathode with a controlled architecture and spherical morphology. We used this electrode as the cathode for a sodium‐ion battery and managed to intercalate/deintercalate the third Na⁺ ion from the structure, demonstrating a high specific capacity (197 mAh g⁻¹). Long‐term stability challenges of these electrodes under a wide potential regime are also presented here in.

中文翻译：

空心球形Na3V2（PO4）2F3阴极的三钠离子活性：证明了高容量和稳定性

Na ₃ V ₂（PO ₄）₂ F ₃（NVPF）由于其高电压和有希望的循环特性而成为一种有前景的钠离子电池正极材料。然而，大多数先前的报告表明在有限的工作电压下仅约100 mAh g ^-1。使用溶剂热合成路线，我们合成了具有可控结构和球形形态的NVPF阴极。我们使用该电极作为钠离子电池的阴极，并设法从结构中嵌入/脱嵌第三个Na ⁺离子，证明了其高比容量（197 mAh g ^-1）。这些电极在宽电位范围内的长期稳定性挑战也将在此提出。

更新日期：2019-11-07

点击分享查看原文

点击收藏

阅读更多本刊最新论文