Jump to main content
Jump to site search

Issue 12, 2017
Previous Article Next Article

Sn–Co nanoalloys embedded in porous N-doped carbon microboxes as a stable anode material for lithium-ion batteries

Author affiliations

Abstract

For improving the capacity and stability of Sn-based anode materials, a novel Sn–Co nanoalloy embedded in porous N-doped carbon was synthesized using the metal–organic framework ZIF-67 as both the template and carbon source, and SnCl4 as the tin source through carbonization. This composite shows the shape of a microbox with the diameter of about 2 μm in which about 10 nm of Sn–Co nanoalloy particles were uniformly embedded. When used as the anode material for lithium-ion batteries, it exhibits a high capacity of 945 mA h g−1, and 86.6% capacity retention after 100 cycles at 100 mA g−1 as well as an excellent rate capacity of 472 mA h g−1 at a high current density of 2 A g−1. The superior electrochemical performance can be ascribed to the well-dispersed, nano-sized alloy and the buffering effect of porous N-doped carbon coating. Moreover, the uniform particles remain intact upon cycling which gives the material enhanced electrochemical stability.

Graphical abstract: Sn–Co nanoalloys embedded in porous N-doped carbon microboxes as a stable anode material for lithium-ion batteries

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 04 Jan 2017, accepted on 16 Feb 2017 and first published on 16 Feb 2017


Article type: Paper
DOI: 10.1039/C7TA00099E
Citation: J. Mater. Chem. A, 2017,5, 5873-5879
  •   Request permissions

    Sn–Co nanoalloys embedded in porous N-doped carbon microboxes as a stable anode material for lithium-ion batteries

    X. Shi, H. Song, A. Li, X. Chen, J. Zhou and Z. Ma, J. Mater. Chem. A, 2017, 5, 5873
    DOI: 10.1039/C7TA00099E

Search articles by author