All Carbon Dual Ion Batteries

Authors

Zhe Hu, University of WollongongFollow
Qiannan Liu, University of WollongongFollow
Kai Zhang, Dongguk University
Limin Zhou, Wuhan University of Technology
Lin Li, Nankai University
Mingzhe Chen, University of WollongongFollow
Zhanliang Tao, Nankai UniversityFollow
Yong-Mook Kang, Dongguk UniversityFollow
Liqiang Mai, Wuhan University of Technology
Shulei Chou, University of WollongongFollow
Jun Chen, University of WollongongFollow
Shi Xue Dou, University of WollongongFollow

RIS ID

131191

Publication Details

Hu, Z., Liu, Q., Zhang, K., Zhou, L., Li, L., Chen, M., Tao, Z., Kang, Y., Mai, L., Chou, S., Chen, J. & Dou, S. (2018). All Carbon Dual Ion Batteries. ACS Applied Materials and Interfaces, 10 (42), 35978-35983.

Abstract

Dual ion batteries based on Na+and PF6-received considerable attention due to their high operating voltage and the abundant Na resources. Here, cheap and easily obtained graphite that served as a cathode material for dual ion battery delivered a very high average discharge platform (4.52 V vs Na+/Na) by using sodium hexafluorophosphate in propylene carbonate as electrolyte. Moreover, the all-carbon dual ion batteries with graphite as cathode and hard carbon as anode exhibited an ultrahigh discharge voltage of 4.3 V, and a reversible capacity of 62 mAh·g-1at 40 mA·g-1. Phase changes have been investigated in detail through in situ X-ray diffraction and in situ Raman characterizations. The stable structure provides long life cycling performance, and the pseudocapacitance behavior also demonstrates its benefits to the rate capability. Thus, dual ion batteries based on sodium chemistry are very promising to find their applications in future.

Grant Number

ARC/LP120200432