A nanosized silicon thin film as high capacity anode material for Li-ion rechargeable batteries

Hong Guo; Hailei Zhao; Chaoli Yin; Weihua Qiu

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A nanosized silicon thin film as high capacity anode material for Li-ion rechargeable batteries

机译：纳米硅薄膜作为锂离子可充电电池的高容量负极材料

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摘要

Silicon thin film with thickness in range 1000-5300 A deposited on rough Cu foil by a radio frequency magnetron sputtering is used as anode materials for Li-ion rechargeable batteries. The SEM, XRD and TEM analysis reveals that the Si thin film has a floccular nano-sized multi-crystalline structure. Li ions insertion/extraction evaluation is performed mainly with constant current charge/discharge cycling and cyclic voltammetry (CV) at room temperature. The cycleability and reversible discharge capacity are found to depend on the film thickness, and thinner films give larger accommodation capacity. A 3120 A Si film provides a reversible specific capacity over 3500 mA hg~(1-) with excellent cycleability under 0.5 C charge/discharge rate.

机译：通过射频磁控溅射在粗糙的铜箔上沉积的厚度范围为1000-5300 A的硅薄膜被用作锂离子可充电电池的负极材料。 SEM，XRD和TEM分析表明Si薄膜具有絮状纳米级多晶结构。锂离子的插入/提取评估主要是在室温下通过恒流充电/放电循环和循环伏安法（CV）进行的。发现循环能力和可逆放电容量取决于薄膜厚度，而较薄的薄膜则具有较大的容纳容量。 3120 A Si膜可提供超过3500 mA hg〜（1-）的可逆比容量，并在0.5 C充电/放电速率下具有出色的循环能力。

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来源
《Materials Science and Engineering. B, Solid-State Materials for Advanced Technology》 |2006年第3期|p.173-176|共4页
作者
Hong Guo; Hailei Zhao; Chaoli Yin; Weihua Qiu;
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作者单位

School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;

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正文语种 eng
中图分类工程材料学;
关键词
silicon thin film; anode materials; li-ion batteries; radio-frequency magnetron sputtering;

机译：硅薄膜;阳极材料;锂离子电池;射频磁控溅射;

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机译：非晶硅/碳多层薄膜作为高倍率可充电锂离子电池的阳极
2. TiO2 thin films on Au/Ti/SiO2/textured Si substrates as high capacity anode materials for Li-ion batteries [J] . CERAMICS INTERNATIONAL . 2020,第8aPta1期

机译：Au / Ti / SiO2 /纹理Si基板上的TiO2薄膜作为锂离子电池的高容量阳极材料
3. Amorphous silicon thin films as a high capacity anodes for Li-ion batteries in ionic liquid electrolytes [J] . Baranchugov V, Markevich E, Pollak E, Electrochemistry communications . 2007,第4期

机译：非晶硅薄膜作为离子液体电解质中锂离子电池的高容量阳极
4. A thin film silicon anode for Li-ion batteries having a very large specific capacity and long cycle life [C] . Tsutomu Takamura, Shigeki Ohara, Junji Suzuki, International Power Sources Symposium . 2003

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5. Novel silicon and tin alloy nano-particulate materials via spark erosion for high performance and high capacity anodes in lithium ion batteries. [D] . White, Emma Marie Hamilton. 2014

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6. Substoichiometric Silicon Nitride – An Anode Material for Li-ion Batteries Promising High Stability and High Capacity [O] . Asbjørn Ulvestad, Hanne F. Andersen, Ingvild J. T. Jensen, -1

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7. Silicon nitride coated silicon thin films as anodes for Li-ion batteries [O] . Ulvestad Asbjørn, Mæhlen Jan Petter, Kirkengen Martin 2015

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A nanosized silicon thin film as high capacity anode material for Li-ion rechargeable batteries

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