Assembly of Na3V2(PO4)3 Nanoparticles Confined in a One-Dimensional Carbon Sheath for Enhanced Sodium-Ion Cathode Properties

被引：75

作者：

Kajiyama, Satoshi ^{[1
]}

Kikkawa, Jun ^{[2
]}

Hoshino, Junichi ^{[1
]}

Okubo, Masashi ^{[1
]}

Hosono, Eiji ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Energy Technol Res Inst, Tsukuba, Ibaraki 3058568, Japan

[2] Natl Inst Mat Sci, Adv Key Technol Div, Tsukuba, Ibaraki 3050044, Japan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2014年 / 20卷 / 39期

关键词：

batteries; electrochemistry; nanostructures; nanowires; sodium ions; ELECTROCHEMICAL PERFORMANCE; STORAGE MECHANISM; ENERGY-STORAGE; LITHIUM; INSERTION; LIFEPO4; NANOFIBERS; ELECTRODE; BATTERY; NANOWIRES;

D O I：

10.1002/chem.201403126

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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 Na3V2(PO4)(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 Na3V2(PO4)(3) within a carbon sheath. The mesostructure comprising NASICON-type Na3V2(PO4)(3) and carbon give a short sodium-ion transport pass and an efficient electron conduction pass. Electrochemical properties of NASICON-type Na3V2(PO4)(3) are improved on the basis of one-dimensional nanostructures designed in the present study.

引用

页码：12636 / 12640

页数：5

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