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首页> 外文期刊>Chemistry: A European journal >Assembly of Na_3V_2(PO_4)_3 Nanoparticles Confined in a One-Dimensional Carbon Sheath for Enhanced Sodium-Ion Cathode Properties
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Assembly of Na_3V_2(PO_4)_3 Nanoparticles Confined in a One-Dimensional Carbon Sheath for Enhanced Sodium-Ion Cathode Properties

机译：限制在一维碳鞘中的Na_3V_2（PO_4）_3纳米粒子的组装，用于增强钠离子阴极性能

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摘要

Structural and morphological control is an effective approach for improvement of electrochemical properties in rechargeable batteries. One-dimensionally assembled structure composed of NASICON-type Na_3V_2(PO_4)_3 nanoparticles were fabricated through an electrospinning method to meet the requirements for the development of efficient electrode materials in Na-ion batteries. High-temperature treatment of electrospun precursor fibers under an argon flow provides a nonwoven fabric of nanowires comprising crystallographically oriented nanoparticles of NASICON-type Na_3V_2(PO_4)_3 within a carbon sheath. The mesostructure comprising NASICON-type Na_3V_2(PO_4)_3 and carbon give a short sodium-ion transport pass and an efficient electron conduction pass. Electrochemical properties of NASICON-type Na_3V_2(PO_4)_3 are improved on the basis of one-dimensional nanostructures designed in the present study.
机译：结构和形态控制是改善可充电电池电化学性能的有效方法。通过静电纺丝法制备了由NASICON型Na_3V_2（PO_4）_3纳米粒子组成的一维组装结构，以满足开发Na离子电池中高效电极材料的要求。在氩气流下对电纺前体纤维进行高温处理，提供了一种纳米线无纺布，该纳米线包括在碳鞘内的NASICON型Na_3V_2（PO_4）_3晶体学取向的纳米粒子。包含NASICON型Na_3V_2（PO_4）_3和碳的介孔结构提供短的钠离子传输通道和有效的电子传导通道。在本研究设计的一维纳米结构的基础上，改善了NASICON型Na_3V_2（PO_4）_3的电化学性能。

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