Research articles
ScienceAsia 52 (2026):ID 2026021 1-7 |doi:
10.2306/scienceasia1513-1874..021
FeS2
@SnO2
composite as a high-performance anode material
for lithium-ion batteries
Zekun Tu, Lijie Cao*
ABSTRACT: In this study, FeS2
nanoparticles prepared by hydrothermal synthesis were ultrasonically dispersed in
the SnO2
precursor solution. After undergoing 6-h aging at ambient conditions (25?2?C), the mixture was dried
and dehydrated to prepare FeS2
@SnO2
composite designed for high-capacity lithium-ion battery anodes. The results
reveal that the prepared FeS2
@SnO2
composite consists of flaky FeS2
nanoparticles exhibiting a size distribution
of 100?600 nm, and SnO2
nanocrystals filled the gaps between and covered the FeS2
nanoparticle substrate. The
electrochemical test results indicate that the prepared FeS2
@SnO2
composite demonstrates a superior initial capacity
(843.7 mAh/g)andenhancedcyclingstability compared to FeS2
anodes. The excellent electrochemical characteristic of
the FeS2
@SnO2
composite maybeattributed to the introduction of SnO2
, which adjusts the original electronic structure
of FeS2
, improves lithium ion transport efficiency, and effectively inhibits the structural collapse of FeS2
at the cost of
some active reaction sites, thereby endowing the FeS2
@SnO2
composite with better structural stability.
Download PDF
Downloads Views
| a |
Shanghai University of Engineering Science, Songjiang, Shanghai, China |
* Corresponding author, E-mail: 2905441071@qq.com
Received 26 Sep 2025, Accepted 17 Feb 2026
|
