Issue 16, 2014

Synthesis and electrochemical properties of NaV3O8 nanoflakes as high-performance cathode for Li-ion battery

Abstract

In the current work, NaV3O8 nanoflakes were fabricated by a novel two-step approach using VO2(B) nanoflakes as a sacrificial template. The as-prepared NaV3O8 was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that NaV3O8 sintered at 400 °C had a suitable degree of crystallinity and demonstrated uniform nanoflake morphology, 100–200 nm in width, 500–800 nm in length and 30–50 nm in thickness. When used as a cathode material for Li-ion batteries, it showed good cyclic performance (a discharge capacity of 210 mA h g−1 remained after 30 cycles at 30 mA g−1 and no capacity fading occurred over 100 cycles at 150 mA g−1). The rate capability was 113.4 mA h g−1 and 91.5 mA h g−1 in 6 C and 10 C, respectively. XRD patterns of NaV3O8 electrodes at different voltages revealed a single-phase reaction mechanism and small crystal volume change (∼3%) during the lithium intercalation/deintercalation processes.

Graphical abstract: Synthesis and electrochemical properties of NaV3O8 nanoflakes as high-performance cathode for Li-ion battery

Article information

Article type
Paper
Submitted
29 Aug 2013
Accepted
21 Nov 2013
First published
27 Nov 2013

RSC Adv., 2014,4, 8328-8334

Synthesis and electrochemical properties of NaV3O8 nanoflakes as high-performance cathode for Li-ion battery

Y. Tang, D. Sun, H. Wang, X. Huang, H. Zhang, S. Liu and Y. Liu, RSC Adv., 2014, 4, 8328 DOI: 10.1039/C3RA44733B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements