Raspberry-like Nanostructured Silicon Composite Anode for High-Performance Lithium-Ion Batteries

Raspberry-like Nanostructured Silicon Composite Anode for High-Performance Lithium-Ion Batteries

TitleRaspberry-like Nanostructured Silicon Composite Anode for High-Performance Lithium-Ion Batteries
Publication TypeJournal Article
Year of Publication2017
AuthorsShan Fang, Zhenkun Tong, Ping Nie, Gao Liu, Xiaogang Zhang
JournalACS Applied Materials & Interfaces
Volume9
Issue22
Pagination18766 - 18773
Date Published05/2017
ISSN1944-8244
Abstract

Adjusting the particle size and nanostructure or applying carbon materials as the coating layers is a promising method to hold the volume expansion of Si for its practical application in lithium-ion batteries (LIBs). Herein, the mild carbon coating combined with a molten salt reduction is precisely designed to synthesize raspberry-like hollow silicon spheres coated with carbon shells ([email protected]) as the anode materials for LIBs. The [email protected] exhibits a remarkable electrochemical performance; a high reversible specific capacity of 886.2 mAh g–1 at a current density of 0.5 A g–1 after 200 cycles is achieved. Moreover, even after 500 cycles at a current density of 2.0 A g–1, a stable capacity of 516.7 mAh g–1 still can be obtained.

DOI10.1021/acsami.7b03157
Short TitleACS Appl. Mater. Interfaces
Refereed DesignationRefereed