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J Nanosci Nanotechnol. 2018 Sep 1;18(9):6422-6426. doi: 10.1166/jnn.2018.15690.

Electrochemical Properties of Micron-Sized SnO Anode Using a Glyme-Based Electrolyte for Sodium-Ion Battery.

Author information

1
Department of Materials Engineering and Convergence Technology, RIGET, Gyeongsang National University, Jinju 52828, Republic of Korea.
2
Cosmo AM&T Co., LTD., Particulate Material R&D Team Assistant Research Engineer 315, Mokheangdong, Chungju-City, Chungbuk 380-703, Korea.
3
Jeonyoung ECP, 637-1, Sunggok-dong, Danwon-gu, Ansan, Kyunggi-do, 15410, Republic of Korea.
4
Department of Material and Energy Engineering, Gyeongwoon University, 730, Gangdong-ro, Sandong-myeon, Gumi, Gyeongbuk 39160, Republic of Korea.

Abstract

Tin monoxide (SnO) anodes are promising candidates for use in sodium-ion batteries because of their high theoretical capacities and stable cycle performance. In previous reports, electrodes with excellent performance have been prepared by using nano-sized SnO particles. However, the synthesis of nano-sized SnO particles is complex, time-consuming, and expensive. In this paper, an anode of micron-sized SnO is prepared by using commercial micron-sized SnO particles. The electrode exhibits a reversible capacity of 450 mAh g-1 in the 1st cycle at a current rate of 100 mA g-1. We used a tetraethylene glycol dimethyl ether (TEGDME)-based electrolyte, which is well known for its superior electrochemical performance in sodium-ion batteries. The mechanism of operation of the anode containing micron-sized SnO particles has been confirmed by a detailed study using X-ray diffraction (XRD), scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). During initial discharge, the SnO changed to Sn and sodium oxide, and the surface of the electrode became covered with a film. The electrode composed of micron-sized SnO is a potential candidate for use in sodium-ion batteries.

PMID:
29677807
DOI:
10.1166/jnn.2018.15690

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