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High-performance sodium ion batteries based on a 3D anode from nitrogen-doped graphene foams.

Authors :
Xu J
Wang M
Wickramaratne NP
Jaroniec M
Dou S
Dai L
Source :
Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2015 Mar 25; Vol. 27 (12), pp. 2042-8. Date of Electronic Publication: 2015 Feb 16.
Publication Year :
2015

Abstract

A 3D N-doped graphene foam with a 6.8 at% nitrogen content is prepared by annealing a freeze-dried graphene oxide foam in ammonia. It is used as an anode in sodium ion batteries to deliver a high initial reversible capacity of 852.6 mA h g(-1) at 1 C between 0.02 and 3 V with a long-term retention of 69.7% after 150 cycles.<br /> (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Details

Language :
English
ISSN :
1521-4095
Volume :
27
Issue :
12
Database :
MEDLINE
Journal :
Advanced materials (Deerfield Beach, Fla.)
Publication Type :
Academic Journal
Accession number :
25689053
Full Text :
https://doi.org/10.1002/adma.201405370