Jump to main content
Jump to site search

Issue 11, 2016
Previous Article Next Article

An advanced high-energy sodium ion full battery based on nanostructured Na2Ti3O7/VOPO4 layered materials

Author affiliations

Abstract

In virtue of the abundant sodium resources, sodium ion batteries (SIBs) have been considered to be one of the promising alternatives to lithium ion batteries (LIBs). However, current research concentrates mostly on sodium ion half-cells, and the development of sodium ion full cells with high performance remains a critical challenge. Here we rationally designed a full sodium-ion battery based on nanostructured Na2Ti3O7 and VOPO4 materials as the anodes and cathodes, owing to their advantageous electrochemical features. The full cell outputs one of the highest operating voltages close to 2.9 V and delivers a large reversible capacity of 114 mA h g−1 at a rate of 0.1C. It also shows outstanding rate capability (∼74 mA h g−1 at 2C rate) and excellent cycling stability (92.4% capacity retention after 100 cycles). A high energy density of 220 W h kg−1 is achieved, which is comparable to the state-of-the-art LIBs. Moreover, the temperature-dependent charge–discharge tests indicate excellent capacity retentions in a wide temperature range of −20 to 55 °C.

Graphical abstract: An advanced high-energy sodium ion full battery based on nanostructured Na2Ti3O7/VOPO4 layered materials

Back to tab navigation

Supplementary files

Article information


Submitted
16 Mar 2016
Accepted
20 Jun 2016
First published
20 Jun 2016

Energy Environ. Sci., 2016,9, 3399-3405
Article type
Communication

An advanced high-energy sodium ion full battery based on nanostructured Na2Ti3O7/VOPO4 layered materials

H. Li, L. Peng, Y. Zhu, D. Chen, X. Zhang and G. Yu, Energy Environ. Sci., 2016, 9, 3399
DOI: 10.1039/C6EE00794E

Social activity

Search articles by author

Spotlight

Advertisements