摘要
使用新三维(3D ) 多孔的 graphene 金属氧化物合成 microspheres 首先这里作为为 Li 离子电池(解放) 的阳极材料被介绍。3D graphene microspheres 是由 graphene 表组成的单个空 graphene nanospheres 的总数。金属氧化物 nanocrystals 一致地在 microspheres 的 graphene 表面上被散布。3D 多孔的 graphene-SnO < 潜水艇 class= “ a-plus-plus ” > 因为他们的优异电气化学的性质， 2 </sub> microspheres 为调查作为第一目标材料被选择。3D 多孔的 graphene-SnO < 潜水艇 class= “ a-plus-plus ” > 2 </sub> 和 graphene microspheres 和赤裸的 SnO < 潜水艇 class= “ a-plus-plus ” > 2 </sub> 粉末交付 1,009， 196，和 52 mAh 癯摥眠敨 ? 桴 ? 桰瑯 ' 椰嫕湐擢撃龖 ` 整 ? 湩瀠瑯獡楳浵戠牯瑡 ? 畢晦牥猠汯瑵潩 ? 瀨的分泌物能力？？
The use of new three-dimensional （3D） porous graphene-metal oxide composite microspheres as an anode material for Li-ion batteries （LIBs） is first introduced here. 3D graphene microspheres are aggregates of individual hollow graphene nanospheres composed of graphene sheets. Metal oxide nanocrystals are uniformly distributed over the graphene surface of the microspheres. The 3D porous graphene-SnO2 microspheres are selected as the first target material for investigation because of their superior electrochemical properties. The 3D porous graphene-SnO2 and graphene microspheres and bare SnO2 powders deliver discharge capacities of 1,009, 196, and 52 mAh·g^-1, respectively, after 500 cycles at a current density of 2 A·g^-1 .The 3D porous graphene-SnO2 microspheres exhibit uniquely low charge transfer resistances and high Li-ion diffusivities before and after cycling.
