Discharge process of Li/PVdF/S cells at room temperature

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The Li/PVdF/S cell showed the first discharge capacity of 1268 mAh g(-1), which was about 78% utilization of theoretical value. There were two plateau regions at the first discharge curve. From the XRD, DSC results of the sulfur electrode, elemental sulfur disappeared at the upper plateau region and Li2S was formed at the low plateau region. We suggested the discharge process of Li/polymer electrolyte/S cell. The elemental sulfur changed into Li2Sn (n > 4) and subsequently changed into Li2S at a lower plateau potential region. (c) 2005 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2006
Language
English
Article Type
Article; Proceedings Paper
Keywords

LITHIUM-SULFUR BATTERY; ELECTROCHEMICAL PROPERTIES; POLYMER ELECTROLYTES; PERFORMANCE

Citation

JOURNAL OF POWER SOURCES, v.153, no.2, pp.360 - 364

ISSN
0378-7753
DOI
10.1016/j.jpowsour.2005.05.037
URI
http://hdl.handle.net/10203/86487
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