Free-standingCuOnanoflakearrayscoatedCufoamforadvanced lithiumionbatteryanodes WanfengYang a ,JiaweiWang b ,WenshengMa a ,ChaoqunDong a ,GuanhuaCheng a , ZhonghuaZhang a,* a KeyLaboratoryforLiquid-SolidStructuralEvolutionandProcessingofMaterials(MinistryofEducation),SchoolofMaterialsScienceandEngineering, ...