title: Hierarchical porous framework of Si-based electrodes for minimal volumetric expansion.
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%.
authors.affiliation: Department of Mechanical Engineering, University of Colorado at Boulder, 80309, USA.
authors.forename: Daniela Molina
authors.initials: DM
authors.lastname: Piper
authors.forename: Jae Ha
authors.initials: JH
authors.lastname: Woo
authors.forename: Seoung-Bum
authors.initials: SB
authors.lastname: Son
authors.forename: Seul Cham
authors.initials: SC
authors.lastname: Kim
authors.forename: Kyu Hwan
authors.initials: KH
authors.lastname: Oh
authors.forename: Se-Hee
authors.initials: SH
authors.lastname: Lee
keywords: cyclization; electrospinning; fibers; polyacrylonitrile; silicon