Two phase microstructure cycling of porous silicon active materials

Two phase microstructure cycling of porous silicon active materials
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多孔硅活性材料的两相微观结构循环

DOI:
10.1016/j.egyr.2020.03.028
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发表时间:
2020
期刊:
影响因子:
5.2
通讯作者:
Entwistle J
Entwistle J
中科院分区:
工程技术4区
文献类型:
--
作者:
Entwistle J

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众所周知,硅为锂离子电池阳极的容量提供了一个台阶变化。我们提出了利用多孔硅活性材料和两相微观结构方法来控制硅在锂化过程中的体积膨胀和容量的想法。通过这种方法,硅可以通过控制体积膨胀和容量来适应特定的电池应用。初步结果表明,相对于恒流循环的对照样品,使用可控容量活化多孔硅会产生负面影响。我们强调了探索这种方法的下一步工作。
Silicon is well known to provide a step change in capacity for lithium-ion battery anodes. We present our thoughts on using porous silicon active materials and the two phase microstructure approach to control silicon volume expansion and capacity during lithiation. With this method silicon can be tailored to the specific cell application desirable by controlling the volume expansion and capacity. The initial results show a negative impact of using controlled capacity activation of porous silicon relative to the control sample which is galvanostatically cycled. We highlight our next steps in exploring this approach.
DOI: 10.1039/c9ta13633a
发表时间: 2020-03-07
影响因子: 11.9
作者:
Entwistle, Jake E.;Beaucage, Gregory;Patwardhan, Siddharth, V
通讯作者: Patwardhan, Siddharth, V