Related Experiment Video
Updated: Apr 5, 2026
10:53
Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material
Published on: February 5, 2019
9.7K
A plum-pudding like mesoporous SiO2/flake graphite nanocomposite with superior rate performance for LIB anode
Huan-Huan Li1, Lin-Lin Zhang, Chao-Ying Fan
1Faculty of Chemistry, National & Local United Engineering Laboratory for Power Batteries, Northeast Normal University, Changchun 130024, P. R. China. sunhz335@nenu.edu.cn jpzhang@nenu.edu.cn.
Physical Chemistry Chemical Physics : PCCP
|August 13, 2015
Summary
A novel plum-pudding like mesoporous SiO2 nanospheres and flake graphite nanocomposite was developed for lithium-ion batteries. This material offers high capacity and excellent rate performance, making it a promising anode material.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Lithium-ion batteries require advanced anode materials for improved performance.
- Silicon dioxide (SiO2) based materials show potential but suffer from volume expansion issues.
- Developing stable and high-capacity anode materials is crucial for next-generation energy storage.
Purpose of the Study:
- To design and fabricate a novel mesoporous SiO2 nanospheres and flake graphite nanocomposite (pp-MSNs/FG).
- To investigate the electrochemical performance of the pp-MSNs/FG nanocomposite as an anode material for lithium-ion batteries.
- To leverage the synergistic effects of the unique plum-pudding structure for enhanced lithium storage.
Main Methods:
- Facile and cost-effective hydrothermal synthesis method.
- Transmission electron microscopy (TEM) for structural analysis.
- Electrochemical testing to evaluate reversible capacity, Coulombic efficiency, and rate performance.
Main Results:
- The pp-MSNs/FG nanocomposite exhibited a unique plum-pudding like structure with MSNs anchored on FG.
- A decent reversible capacity of 702 mA h g(-1) was achieved after 100 cycles at 100 mA g(-1) with high Coulombic efficiency (>99%).
- Excellent rate capability was demonstrated, with a charge capacity of 239.6 mA h g(-1) at 5000 mA g(-1).
Conclusions:
- The pp-MSNs/FG nanocomposite demonstrates superior lithium storage properties due to its unique architecture.
- The conductive framework of FG and porous structure of MSNs effectively mitigate volume expansion and provide ample storage sites.
- This SiO2-based anode material exhibits among the best-reported performances for high-rate lithium-ion battery applications.
