CN
- Hierarchical porous framework of Si-based electrodes for minimal volumetric expansion.
Hierarchical porous framework of Si-based electrodes for minimal volumetric expansion.
Advanced materials (Deerfield Beach, Fla.) (2014-03-14)
Daniela Molina Piper, Jae Ha Woo, Seoung-Bum Son, Seul Cham Kim, Kyu Hwan Oh, Se-Hee Lee
PMID24623468
ABSTRACT
A tunable hierarchical porous framework is fabricated to house the volumetric changes outputted by Si. The nSi@cPAN/cPAN electrodes only expand by 14.3% at full initial lithiation and remain within 23% expansion from its uncycled state after 20 cycles with remarkable cycling stability and high coulombic efficiencies in excess of 99.5%.