Next Article in Journal
Alkali and Alkaline Earth Metal Complexes Ligated by an Ethynyl Substituted Cyclopentadienyl Ligand
Next Article in Special Issue
Study of Cathode Materials for Lithium-Ion Batteries: Recent Progress and New Challenges
Previous Article in Journal
Potassium C–F Interactions and the Structural Consequences in N,N′-Bis(2,6-difluorophenyl)formamidinate Complexes
Previous Article in Special Issue
Nanotechnology of Positive Electrodes for Li-Ion Batteries
Article Menu
Issue 2 (June) cover image

Export Article

Open AccessArticle
Inorganics 2017, 5(2), 27; doi:10.3390/inorganics5020027

Pulsed Current Electrodeposition of Silicon Thin Films Anodes for Lithium Ion Battery Applications

Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15261, USA
Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
US Department of Energy, National Energy Technology Laboratory, Morgantown, WV 26507, USA
Author to whom correspondence should be addressed.
Academic Editor: Christian M. Julien
Received: 20 March 2017 / Revised: 16 April 2017 / Accepted: 17 April 2017 / Published: 20 April 2017
(This article belongs to the Special Issue Novel Lithium Battery Electrode Materials)
View Full-Text   |   Download PDF [4270 KB, uploaded 20 April 2017]   |  


Electrodeposition of amorphous silicon thin films on Cu substrate from organic ionic electrolyte using pulsed electrodeposition conditions has been studied. Scanning electron microscopy analysis shows a drastic change in the morphology of these electrodeposited silicon thin films at different frequencies of 0, 500, 1000, and 5000 Hz studied due to the change in nucleation and the growth mechanisms. These electrodeposited films, when tested in a lithium ion battery configuration, showed improvement in stability and performance with an increase in pulse current frequency during deposition. XPS analysis showed variation in the content of Si and oxygen with the change in frequency of deposition and with the change in depth of these thin films. The presence of oxygen largely due to electrolyte decomposition during Si electrodeposition and the structural instability of these films during the first discharge–charge cycle are the primary reasons contributing to the first cycle irreversible (FIR) loss observed in the pulse electrodeposited Si–O–C thin films. Nevertheless, the silicon thin films electrodeposited at a pulse current frequency of 5000 Hz show a stable capacity of ~805 mAh·g−1 with a fade in capacity of ~0.056% capacity loss per cycle (a total loss of capacity ~246 mAh·g−1) at the end of 500 cycles. View Full-Text
Keywords: silicon; nanocomposites; Li-ion battery; pulse electrodeposition; morphology silicon; nanocomposites; Li-ion battery; pulse electrodeposition; morphology

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Gattu, B.; Epur, R.; Shanti, P.M.; Jampani, P.H.; Kuruba, R.; Datta, M.K.; Manivannan, A.; Kumta, P.N. Pulsed Current Electrodeposition of Silicon Thin Films Anodes for Lithium Ion Battery Applications. Inorganics 2017, 5, 27.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Inorganics EISSN 2304-6740 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top