Issue 4, 2018

Mixed ether-based solvents provide a long cycle life with high rate capability to graphite anodes for Na-ion batteries

Abstract

Energy storage devices using sodium ions have great potential in terms of their low cost, high power, and long life. In particular, there could be a significant cost reduction, because of the abundant resource of sodium. Recently, electro-chemical sodium storage performance has been demonstrated in graphite anodes using ether-based solvents. However, the high power and long life were not compatible in the same ether solution. Here, we demonstrated using mixed ether-based solvents that a long cycle life and high rate capability can coexist in the graphite anodes for sodium-ion batteries. The cycle performance indicated that the discharge capacity retention ratio after 10 000 cycles was more than 90% and the capability of 4 A g−1/0.2 A g−1 (40C/2C) was more than 75%. These results could advance the development of sodium storage devices for practical use.

Graphical abstract: Mixed ether-based solvents provide a long cycle life with high rate capability to graphite anodes for Na-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
13 Oct 2017
Accepted
29 Nov 2017
First published
29 Nov 2017

Phys. Chem. Chem. Phys., 2018,20, 2188-2195

Mixed ether-based solvents provide a long cycle life with high rate capability to graphite anodes for Na-ion batteries

T. Kajita and T. Itoh, Phys. Chem. Chem. Phys., 2018, 20, 2188 DOI: 10.1039/C7CP06998G

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