Back to Search
Start Over
An electrochemically roughened Cu current collector for Si-based electrode in Li-ion batteries.
- Source :
-
Journal of Power Sources . Oct2013, Vol. 239, p308-314. 7p. - Publication Year :
- 2013
-
Abstract
- Abstract: An electrochemically roughened copper foil was evaluated as a current collector for micrometric Si powder (ball-milled) based electrodes prepared by the conventional slurry-coating method. The formation of a bunch of copper nanowires on the current collector provides a rough surface, which enhances the adhesion of the Si composite electrode as confirmed from scratch tests. This produces a major decrease of the irreversible capacity associated with the electrical disconnection of the Si particles with cycling, which results in a great improvement of the electrode cycle life. With such a roughened Cu current collector, the micrometric Si-based electrode is able to maintain a discharge capacity of 1200mAhg−1 for at least 1000 cycles. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 239
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 89295792
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2013.03.108