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| Publications [#336302] of Jie Liu
search www.chem.duke.edu.Journal Articles
- Zhang, Q; Liu, J; Wu, ZY; Li, JT; Huang, L; Sun, SG, 3D nanostructured multilayer Si/Al film with excellent cycle performance as anode material for lithium-ion battery,
Journal of Alloys and Compounds, vol. 657
(February, 2016),
pp. 559-564, Elsevier BV [doi]
(last updated on 2026/01/16)
Abstract: The practical application of Si film anode is hindered severely, due to the very low active material loading. In current study, 3-dimensional nanostructured multilayer Si/Al film (3D-MSAF) of 1 μm in total Si thickness was prepared through chemical etching, electrochemical reduction and magnetron sputtering method and served as anode material of lithium-ion battery. This 3D-MSAF anode exhibits excellent cycle performance evidenced by a capacity as high as 1015 mAh g-1 after 120 charge-discharge cycles at the current density of 4.2 A g-1. Even at a much higher current density of 10.0 A g-1, the 3D-MSAF anode can still provide a capacity of 919 mAh g-1. However, the planar multilayer Si/Al film (P-MSAF) with the same Si thickness delivers only a capacity of 336 mAh g-1 after 55 cycles at 4.2 A g-1. The enhanced electrochemical performance is mainly attributed to the unique structure of the 3D-MSAF electrode, which could effectively accommodate the volume variation and improve the electronic conductivity.
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