Abstract
Newhigh surface area nano-architectured copper current collectors have been designed based on simpleelectrodeposition method. The nano-architectured electrode design not only increases the effective surfacearea of the electrode but it is also very suitable for sustaining the mechanical and structural strainduring electrochemical reaction. In this work, a nano-architectured Sn anode for Li-ion battery, based onLi–Sn alloying reaction, delivers very high cycle life and good power performance compared to planar tinfilms. This electrode could be successfully used in the field of 3D microbatteries.