Nanoporous Si has been grown by Pulsed Laser Deposition on a free-standing carbon nanotube (CNT) paper sheet for micro-battery anodes. The Si deposition shows the conformal coverage on the CNT paper, and the Si-CNT paper anodes demonstrate high areal capacity of ~1000 uAh/cm2 at a current density of 54 uA/cm2, while, 69% of its initial capacity is preserved when the current density is increased by a factor 10. Excellent stability without capacity decay up to 1000 cycles at a current density of 1080uA/cm2 is also demonstrated. After bending along the diameter of the circular paper disc many times, the Si-CNT paper anodes preserve the same morphology, indicating that nanoporous Si-CNT paper anodes can find its application for flexible micro-batteries.

High-performance flexible nanoporous Si-carbon nanotube paper anodes for micro-battery applications

BISERNI, ERIKA;LI BASSI, ANDREA;
2016

Abstract

Nanoporous Si has been grown by Pulsed Laser Deposition on a free-standing carbon nanotube (CNT) paper sheet for micro-battery anodes. The Si deposition shows the conformal coverage on the CNT paper, and the Si-CNT paper anodes demonstrate high areal capacity of ~1000 uAh/cm2 at a current density of 54 uA/cm2, while, 69% of its initial capacity is preserved when the current density is increased by a factor 10. Excellent stability without capacity decay up to 1000 cycles at a current density of 1080uA/cm2 is also demonstrated. After bending along the diameter of the circular paper disc many times, the Si-CNT paper anodes preserve the same morphology, indicating that nanoporous Si-CNT paper anodes can find its application for flexible micro-batteries.
NANOTECHNOLOGY
File in questo prodotto:
File Dimensione Formato  
Biserni_Nanotechnology16.pdf

Accesso riservato

: Publisher’s version
Dimensione 1.47 MB
Formato Adobe PDF
1.47 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Si@CNT- nanotechnology_preprint.pdf

embargo fino al 08/03/2018

: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 722.5 kB
Formato Adobe PDF
722.5 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1000668
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 9
social impact