Facile and Scalable Approach To Fabricate Granadilla-like Porous-Structured Silicon-Based Anode for Lithium Ion Batteries
Author(s)
Guan, Peng
Li, Jianjiang
Lu, Taige
Guan, Tong
Ma, Zhaoli
Peng, Zhi
Zhu, Xiaoyi
Zhang, Lei
Griffith University Author(s)
Year published
2018
Metadata
Show full item recordAbstract
A porous silicon and carbon composite (PSi/C) with granadilla-like structure as an anode material for lithium-ion batteries has been easily fabricated by spray drying and subsequent pyrolysis treatments. For the PSi/C, yolk–shell-structured Si/C nanobeads are equably distributed inside the porous carbon framework. The key point of this work is the combination of the advantages of both the yolk–shell structure and porous structure in one system. The void space inside the yolk–shell Si/C nanobeads and the interconnected three-dimensional porous carbon frameworks can effectively enhance the cyclic stability and conductivity of ...
View more >A porous silicon and carbon composite (PSi/C) with granadilla-like structure as an anode material for lithium-ion batteries has been easily fabricated by spray drying and subsequent pyrolysis treatments. For the PSi/C, yolk–shell-structured Si/C nanobeads are equably distributed inside the porous carbon framework. The key point of this work is the combination of the advantages of both the yolk–shell structure and porous structure in one system. The void space inside the yolk–shell Si/C nanobeads and the interconnected three-dimensional porous carbon frameworks can effectively enhance the cyclic stability and conductivity of this composite. As expected, PSi/C with 15.4% silicon content exhibited a specific capacity as high as 1357.43 mAh g–1 and retained 933.62 mAh g–1 beyond 100 cycles at 100 mA g–1. Moreover, it showed a reversible specific capacity as high as 610.38 mAh g–1 at 1000 mA g–1, even after 3000 cycles.
View less >
View more >A porous silicon and carbon composite (PSi/C) with granadilla-like structure as an anode material for lithium-ion batteries has been easily fabricated by spray drying and subsequent pyrolysis treatments. For the PSi/C, yolk–shell-structured Si/C nanobeads are equably distributed inside the porous carbon framework. The key point of this work is the combination of the advantages of both the yolk–shell structure and porous structure in one system. The void space inside the yolk–shell Si/C nanobeads and the interconnected three-dimensional porous carbon frameworks can effectively enhance the cyclic stability and conductivity of this composite. As expected, PSi/C with 15.4% silicon content exhibited a specific capacity as high as 1357.43 mAh g–1 and retained 933.62 mAh g–1 beyond 100 cycles at 100 mA g–1. Moreover, it showed a reversible specific capacity as high as 610.38 mAh g–1 at 1000 mA g–1, even after 3000 cycles.
View less >
Journal Title
ACS Applied Materials and Interfaces
Volume
10
Issue
40
Subject
Chemical sciences
Other chemical sciences not elsewhere classified
Engineering