title: Sandwich nanoarchitecture of Si/reduced graphene oxide bilayer nanomembranes for Li-ion batteries with long cycle life.
abstract: The large capacity loss and huge volume change of silicon anodes severely restricts their practical applications in lithium ion batteries. In this contribution, the sandwich nanoarchitecture of rolled-up Si/reduced graphene oxide bilayer nanomembranes was designed via a strain released strategy. Within this nanoarchitecture, the inner void space and the mechanical feature of nanomembranes can help to buffer the strain during lithiation/delithiation; the alternately stacked conductive rGO layers can protect the Si layers from excessive formation of SEI layers. As anodes for lithium-ion batteries, the sandwiched Si/rGO nanoarchitecture demonstrates long cycling life of 2000 cycles at 3 A g(-1) with a capacity degradation of only 3.3% per 100 cycles.
authors: Institute for Integrative Nanosciences, IFW-Dresden , Helmholtzstrasse 20, 01069 Dresden, Germany.
authors: Xianghong
authors: X
authors: Liu
authors: Jun
authors: J
authors: Zhang
authors: Wenping
authors: W
authors: Si
authors: Lixia
authors: L
authors: Xi
authors: Barbara
authors: B
authors: Eichler
authors: Chenglin
authors: C
authors: Yan
authors: Oliver G
authors: OG
authors: Schmidt
keywords: lithium-ion batteries; nanoarchitecture; nanomembranes; reduced graphene oxide; silicon