Monodisperse CoSn2 and FeSn2 nanocrystals as high-performance anode materials for lithium-ion batteries
OPEN ACCESS
Loading...
Author / Producer
Date
2018-04
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
Nanostructured metal alloys show great promise as replacement materials for graphite anodes, and could improve the energy and power density of present-day lithium-ion batteries (LIBs). Herein, we report a facile colloidal synthesis of CoSn2 and FeSn2 nanocrystals (NCs) via the reaction of Co or Fe NCs and SnCl2 in oleylamine under reducing conditions. Among our pure Sn NCs and mixtures of Co or Fe and Sn NCs, monodisperse CoSn2 nanoalloys showed considerably improved cycling stability. In particular, CoSn2 delivered a stable average capacity of 650 mA h g−1 for 5000 cycles at a high current density of 1984 mA g−1, which is among the highest reported cycling stabilities for Sn-based anode materials.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
10 (15)
Pages / Article No.
6827 - 6831
Publisher
Royal Society of Chemistry
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Organisational unit
03934 - Kovalenko, Maksym / Kovalenko, Maksym
Notes
Funding
Related publications and datasets
Is part of: https://doi.org/10.3929/ethz-b-000450940