Nano-structured spherical porous SnO2 anodes for lithium-ion batteries

Authors

Ling Yuan, University of WollongongFollow
Zaiping Guo, University of WollongongFollow
Konstantin Konstantinov, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

14208

Publication Details

Yuan, L, Guo, Z, Konstantinov, KK, Liu, HK & Dou, SX (2006), Nano-structured spherical porous SnO2 anodes for lithium-ion batteries, Journal of Power Sources, 159(1), pp. 345-348.

Abstract

Spherical porous tin oxide was fabricated via a spray pyrolysis technique. TEM revealed that the primary SnO₂ crystals had an average size of about 5 nm. The electrochemical measurements showed that the spherical porous SnO₂ samples have excellent cyclability, which can deliver a reversible capacity of 410 mAh g⁻¹ up to 50 cycles as a negative electrode for lithium batteries. The second step of the study was to thermal treat the initial tin oxide for 3 h at 600, 800, 1000 and 1200 °C, respectively, in order to identify the particle size effect on the electrochemical performance toward lithium. It was found that the morphologies of these spherical clusters could be maintained even after thermal treatment at 1200 °C. It was also proved that finer the size of the tin oxide particles the better the electrochemical performance.