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Keywords:

  • silicon;
  • carbon nanotube;
  • super-aligned;
  • anode;
  • lithium ion batteries
Thumbnail image of graphical abstract

Aligned carbon nanotube sheets provide an engineered scaffold for the deposition of a silicon active material for lithium ion battery anodes. The sheets are low-density, allowing uniform deposition of silicon thin films while the alignment allows unconstrained volumetric expansion of the silicon, facilitating stable cycling performance. The flat sheet morphology is desirable for battery construction.