Jump to main content
Jump to site search

Issue 82, 2016, Issue in Progress
Previous Article Next Article

Facile fabrication of stable and high-rate Si/NiSix/CNTs Li-ion anodes with a buffering interface

Author affiliations

Abstract

Silicon (Si)/carbon nanotubes (CNTs) composites are ideal anode materials for lithium ion batteries. However, due to the large volume expansion mismatch between Si and CNTs, the cycle life of conventional Si/CNTs composites fabricated by different approaches is still very limited. Here, a novel Si/nickel-Si alloy (NiSix)/CNTs composite has been successfully designed and fabricated through a chemical vapor deposition method with the assistance of uniformly embedded Ni nanoparticles. The CNTs grow up from the composite and serve as strong rivets, which greatly improves the electrical connection stability at the interface between Si and CNTs. Consequently, the corresponding discharge capacity can remain at around 550 mA h g−1 with a capacity retention of 84% for 300 cycles, while a high rate capability can be achieved with a discharge capacity of 420 mA h g−1 at 4 A g−1.

Graphical abstract: Facile fabrication of stable and high-rate Si/NiSix/CNTs Li-ion anodes with a buffering interface

Back to tab navigation

Supplementary files

Article information


Submitted
26 May 2016
Accepted
15 Aug 2016
First published
15 Aug 2016

RSC Adv., 2016,6, 78559-78563
Article type
Paper

Facile fabrication of stable and high-rate Si/NiSix/CNTs Li-ion anodes with a buffering interface

X. Fan, J. Ji, X. Jiang, W. Wang and Z. Liu, RSC Adv., 2016, 6, 78559
DOI: 10.1039/C6RA13620F

Social activity

Search articles by author

Spotlight

Advertisements