Issue 3, 2012

Ultrathin Na1.08V3O8 nanosheets—a novel cathode material with superior rate capability and cycling stability for Li-ion batteries

Abstract

A novel two-step approach was developed to fabricate well-dispersed Na1.08V3O8nanosheets, which consist of ultra-thin monolayer sheets with a thickness of ca. 10 nm. The formation mechanism of nanosheets involves the fusion and conversion of nanorods. When used as a cathode material for Li-ion batteries, the nanosheets show superior rate capability, with discharge capacities of ca. 200.0, 131.3, 109.9, 94.2 and 72.5 mA h g−1 at 0.4, 10, 20, 30 and 50 C, respectively. Excellent cycling stability without considerable capacity loss over 200 cycles is observed at 600 and 1000 mA g−1. It is believed that the unique nanosheet morphology as well as its intrinsic structural features greatly facilitate the kinetics of Li-ion diffusion and excellent structure stability, thus resulting in superior electrochemical performance.

Graphical abstract: Ultrathin Na1.08V3O8 nanosheets—a novel cathode material with superior rate capability and cycling stability for Li-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
18 Nov 2011
Accepted
10 Jan 2012
First published
11 Jan 2012

Energy Environ. Sci., 2012,5, 6173-6179

Ultrathin Na1.08V3O8 nanosheets—a novel cathode material with superior rate capability and cycling stability for Li-ion batteries

H. Wang, S. Liu, Y. Ren, W. Wang and A. Tang, Energy Environ. Sci., 2012, 5, 6173 DOI: 10.1039/C2EE03215E

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