Preparation and electrochemical properties of nano-sized SnF2 as negative electrode for lithium-ion batteries

Titelangaben

Bouazza, Sofiane ; Saberi, Ali ; Willert-Porada, Monika:
Preparation and electrochemical properties of nano-sized SnF2 as negative electrode for lithium-ion batteries.
In: Materials Letters. Bd. 65 (2011) Heft 9 . - S. 1334-1336.
ISSN 0167-577X
DOI: https://doi.org/10.1016/j.matlet.2011.02.003

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Abstract

Nanocrystalline SnF2 was prepared via recrystallization of commercially available tin (II) fluoride. The electrochemical performance of tin fluoride as anode material for Li-ion batteries was investigated. The cyclic voltammetry of the obtained material showed occurrence of SnF2 decomposition at first and a typical reversible alloying/de-alloying process at low potentials. Furthermore, it was found that the synthesized material delivered a high reversible capacity of 1016 mAhg- 1 and a capacity retention of 54.8% after 30 cycles when the electrode was cycled at a current of 100 mA g- 1.