ID 5284
File
Authors
Keywords
Si-based anode
LaSi2/Si composite
Ionic liquid electrolyte
Thick-film electrode
Gas-deposition method
Li-ion battery
Abstract
Anode performances of LaSi2/Si composite thick-films were investigated in ionic liquids as Li-ion battery electrolytes containing cations of N-methyl-N-propylpiperidinium (PP13) or 1-ethyl-3-methylimidazolium and anions of bis(fluorosulfonyl)amide (FSA) or bis(trifluoromethanesulfonyl) amide. The LaSi2/Si electrode exhibited much better performance in PP13-FSA compared with the other electrolytes including a conventional organic solvent one: the reversible capacity at the 250th cycle and its retention were 800 mA h g−1 and 80%. The excellent performance is attributed to a higher stability of PP13 cations against a cathodic decomposition and an easier desolvation of Li ions and FSA anions at the electrode/electrolyte interface. This result offers a promising applicability of ionic liquid electrolyte to various Si-based anodes with high performances by architecture of cation and anion structures.
Publisher
Elsevier
Content Type
Journal Article
Link
ISSN・ISBN
0378-7753
NCID
AA1153408X
Journal Title
Journal of power sources
Current Journal Title
Journal of power sources
Volume
235
Start Page
29
End Page
35
Published Date
2013-08-01
Publisher-DOI
Text Version
Author
Rights
Copyright © 2013 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Citation
Journal of power sources. 2013, 135, 29-35
Department
Faculty of Engineering/Graduate School of Engineering
Language
English