Enhanced cycling performance in heat-treated tin-based composite oxide anode for lithium-ion batteries
- Authors
- Lee, Seok Hee; Jee, Seung Hyun; Lee, Kang Soo; Nam, Sang Cheol; Yoon, Young Soo
- Issue Date
- Jan-2013
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Cycling performance; Tin phosphate; Anode; Lithium-ion batteries; Electrical properties
- Citation
- ELECTROCHIMICA ACTA, v.87, pp.905 - 911
- Journal Title
- ELECTROCHIMICA ACTA
- Volume
- 87
- Start Page
- 905
- End Page
- 911
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/84820
- DOI
- 10.1016/j.electacta.2012.09.002
- ISSN
- 0013-4686
- Abstract
- SnPxOy thin films were deposited on stainless steel substrates by electron-beam evaporation for use as anodes in thin-film lithium ion batteries. The thin films were heat-treated at various temperatures for 4 h, and their composition, microstructure, and electrochemical properties were characterized by Rutherford backscattering spectroscopy (RBS), X-ray diffraction (XRD), cyclic voltammetry (CV), and AC impedance spectroscopy. The specific discharge capacity of the as-deposited SnPxOy thin film anode decreased rapidly to 12 mu Ah cm(-2)-mu m within 10 cycles. However, after heat treatment for 4h at 500 degrees C, it maintained a high specific discharge capacity of 136 mu Ah cm(-2)-mu m and excellent cyclability even after 300 cycles, in contrast to pure SnOx thin film. (C) 2012 Elsevier Ltd. All rights reserved.
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Collections - 공과대학 > 신소재공학과 > 1. Journal Articles
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