Self-assembly of Si/honeycomb reduced graphene oxide composite film as a binder-free and flexible anode for Li-ion batteriesSi/蜂窝状还原氧化石墨烯复合膜的自组装作为锂离子电池的无粘合剂和柔性阳极JOURNAL OF MATERIALS CHEMISTRY AIF9.52014-01-01122PREAI