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Li–Si thin films for battery applications produced by ion-beam co-sputtering

机译:Li-Si薄膜用于离子束共溅射产生的电池应用

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Amorphous lithium–silicon compounds are promising materials in order to improve pure silicon as a high-capacity anode material in lithium-ion batteries. We demonstrated that it is possible to produce amorphous Li _( x ) Si ( x ≈ 0.4) thin films by reactive ion-beam co-sputtering of a segmented solid state target composed of metallic lithium and elemental silicon. At the surface a graded Li _( x ) SiO _( y ) layer of some nanometer thickness is formed by contact with air which seems to prevent decomposition of the Li _( x ) Si.
机译:非晶锂 - 硅化合物是有前途的材料,以改善纯硅作为锂离子电池中的高容量阳极材料。我们证明,通过由金属锂和元素硅组成的分段固态靶的反应离子束共溅射,可以生产无定形Li _(x)Si(x≈0.04)薄膜。在表面处,通过​​与空气接触形成一些纳米厚度的分级Li _(x)SiO _(Y)层,该空气似乎防止了Li _(x)Si的分解。

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