초록 |
To meet the demand for the high-energy-density rechargeable batteries, lithium (Li) metal anode, among various electrode materials, is often regarded as the “Holy grail” electrode because of its high theoretical capacity (3860 mA h g-1) and the lowest electrochemical potential (-3.040 V vs. standard hydrogen electrode). Nevertheless, there are difficulty in using lithium metal as anode due to intrinsic problems such as unstable solid electrolyte interphase (SEI) and uncontrolled lithium dendrite growth. Various investigations have been conducted to solve these problems, however, there is a lack of fundamental insight into physical and chemical characteristics of Li anode. In this work, we fabricated two different shapes of 10 um deep surface reliefs (continuous and discontinuous type) on lithium metal anode for the understanding of physical characteristics of Li surface in cycling behavior of Li anode. |