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ACS Appl Mater Interfaces. 2017 May 24;9(20):17172-17177. doi: 10.1021/acsami.7b04561. Epub 2017 May 12.

Sn Nanoparticles Encapsulated in 3D Nanoporous Carbon Derived from a Metal-Organic Framework for Anode Material in Lithium-Ion Batteries.

Author information

1
School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore.
2
Chemical Sciences and Engineering Division, Argonne National Laboratory , Argonne, Illinois 60439, United States.
3
Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, P. R. China.

Abstract

Three-dimensional nanoporous carbon frameworks encapsulated Sn nanoparticles (Sn@3D-NPC) are developed by a facile method as an improved lithium ion battery anode. The Sn@3D-NPC delivers a reversible capacity of 740 mAh g-1 after 200 cycles at a current density of 200 mA g-1, corresponding to a capacity retention of 85% (against the second capacity) and high rate capability (300 mAh g-1 at 5 A g-1). Compared to the Sn nanoparticles (SnNPs), such improvements are attributed to the 3D porous and conductive framework. The whole structure can provide not only the high electrical conductivity that facilities the electron transfer but also the elasticity that will suppress the volume expansion and aggregation of SnNPs during the charge and discharge process. This work opens a new application of metal-organic frameworks in energy storage.

KEYWORDS:

Li-ion battery; Sn; anode; carbon framework; metal−organic framework

PMID:
28471168
DOI:
10.1021/acsami.7b04561

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