To increase lithium secondary batteries energy density, lithium metal with high theoretical specific capacities, low densities, and lowest negative values of electrochemical potential should be used for anode material. However, despite their advantages, the unpredictable lithium deposition of lithium metal anode generating low Coulombic efficiency and safety problem has limited their commercialization until now. So, in order to solve this problem, our group developed regular sized micro patterned lithium metal anode for lithium secondary batteries. This micro patterned lithium metal anode demonstrated great electrochemical performance. But, above specific current density (about 2.4 mA cm^-2) cycling, the cell with patterned lithium metal anode gradually lost their original capacity and showed low Coulombic efficiency due to forming granular lithium depositions in the micro patterned lithium metal holes. Luckily, additionally, micro pattern lithium metal anode is simply able to apply others lithium dendrite suppressed methods such as protection layer, electrolyte additive and so on. To remove these potential risk of electrochemical performance, CsPF₆ electrolyte additive was introduced in our patterned lithium metal anode. This additive was known for suppressing lithium dendrite growth due to their Self-Healing Electrostatic Shield (SHES) Mechanism. Herein, LMO/Pattern lithium metal coin cells with CsPF₆ additive in electrolytes show well protected patterned lithium metal anode surface, enhanced rate capability and extended cycling stability. This is mainly because CsPF₆ can relatively help forming dense lithium deposition in pattern lithium metal hole so that bulk electrolyte consumption was suppressed.