Ge/GeO2-Ordered Mesoporous Carbon Nanocomposite for Rechargeable Lithium-Ion Batteries with a Long-Term Cycling Performance.

摘要: Germanium-based nanostructures are receiving intense interest in lithium-ion batteries because they have ultrahigh lithium ion storage ability. However, the anodes undergo considerably large volume change during charge/discharge processes, leading to a fast capacity fade. In present work, Ge/GeO2-ordered mesoporous carbon (Ge/GeO2–OMC) nanocomposite was successfully fabricated via facile nanocasting route by using as nanoreactor, and then used an anode for batteries. Benefited from its unique three-dimensional “meso-nano” structure, Ge/GeO2–OMC exhibited reversible capacity, excellent long-time cycling stability high rate performance. For instance, of 1018 mA h g–1 obtained after 100 cycles at current density 0.1 A g–1, which might be attributed structure nanocomposite. addition, 492 can retained whe...