544
Empirical Investigations of Micro-Pattern Morphology Effect on Lithium Metal Anodes

Wednesday, 16 May 2018
Ballroom 6ABC (Washington State Convention Center)
J. Ahn, E. K. Jang, J. Im, and K. Y. Cho (Hanyang University)
Lithium ion batteries (LIBs) with higher capacity, longer life span, and improved safety have been demanded for many applications such as electric vehicles and grid-level energy storage systems. Lithium metal anode, among various electrode materials, is often regarded as the “Holy grail” electrode because of its high theoretical capacity (3860 mAhg-1) and the lowest electrochemical potential (-3.040V 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 which induce poor safety, low coulombic efficiency, and short span life of batteries. Recently, it was reported that micro-patterned lithium metal anodes can suppress the dendrite growth during lithium plating/stripping. In this work, we fabricated different shapes of pattern on lithium metal anode. We also investigated the behavior of lithium dendrite growth from different pattern morphology during lithium plating and stripping process.