Jump to main content
Jump to site search

Issue 12, 2017
Previous Article Next Article

Kelp-derived hard carbons as advanced anode materials for sodium-ion batteries

Author affiliations

Abstract

Sodium-ion batteries (SIBs) have received much attention for scalable electrical energy storage because of the abundance and wide availability of sodium resources. However, it is still unclear whether carbon anodes can realize large-scale commercial application in SIBs as in lithium-ion batteries. Recently, great attention has been devoted to hard carbon which has been treated as a promising choice. Herein, we observe that the turbostratic lattice of kelp-derived hard carbon (KHC) is repeatedly expandable and shrinkable upon cycling, where the interlayer distance varies between 3.9 and 4.3 Å. Such interlayer spacing dilation is highly reversible, giving rise to high rate capability (a stable capacity of 96 mA h g−1 at 1000 mA g−1) and excellent cycling performance (205 mA h g−1 after 300 cycles at 200 mA g−1). Furthermore, kelp-derived hard carbon exhibits a good specific capacity at potentials higher than 0.05 V, which make it an essentially dendrite-free anode for SIBs.

Graphical abstract: Kelp-derived hard carbons as advanced anode materials for sodium-ion batteries

Back to tab navigation

Supplementary files

Publication details

The article was received on 19 Jan 2017, accepted on 22 Feb 2017 and first published on 22 Feb 2017


Article type: Paper
DOI: 10.1039/C7TA00639J
Citation: J. Mater. Chem. A, 2017,5, 5761-5769
  •   Request permissions

    Kelp-derived hard carbons as advanced anode materials for sodium-ion batteries

    P. Wang, X. Zhu, Q. Wang, X. Xu, X. Zhou and J. Bao, J. Mater. Chem. A, 2017, 5, 5761
    DOI: 10.1039/C7TA00639J

Search articles by author

Spotlight

Advertisements