通过分子层沉积实现的用于锂离子电池的可逆高容量硅纳米复合材料负极
Reversible high-capacity Si nanocomposite anodes for lithium-ion batteries enabled by molecular layer deposition.
机构信息
Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO, 80309, USA; National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO, 80401, USA.
出版信息
Adv Mater. 2014 Mar 12;26(10):1596-601. doi: 10.1002/adma.201304714. Epub 2013 Dec 18.
The molecular-layer deposition of a flexible coating onto Si electrodes produces high-capacity Si nanocomposite anodes. Using a reaction cascade based on inorganic trimethylaluminum and organic glycerol precursors, conventional nano-Si electrodes undergo surface modifications, resulting in anodes that can be cycled over 100 times with capacities of nearly 900 mA h g(-1) and Coulombic efficiencies in excess of 99%.
在 Si 电极上沉积一层柔性涂层会产生高容量的 Si 纳米复合材料负极。使用基于无机三甲基铝和有机甘油前体的反应级联，传统的纳米-Si 电极进行表面改性，得到的负极可以循环 100 多次，容量接近 900 mA h g(-1)，库仑效率超过 99%。
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