P1-2360Li Metal Anode for High Energy Density BatteryKey Words: Li metal, rechargeable batteryLarge capacity energy storage devices are necessary to establish next-generation energy system. Li metal is very attractive material for negative electrode for batteries. Howeverthe dendrite growth during cycles is severe problem. We have tounderstand the mechanism of dendrite growth of Li metal and control the morphological variation of Li metal anode.⚫Ultra-micro-electrode is useful as a standard tool for comparison of morphology. ⚫Ultra-micro-electrode has high compatibility with cryo-STEM observation technique.ConclusionMorphological VariationsSurface Analysis⚫Not only deposited morphology but also cycled morphology of Li metal anode⚫Analysis for crystallinity⚫Nucleation and growth mechanism depending on the electrolytesFuture PlanIntroductionLi metal is very reactive material,it is necessary to avoid air-exposure and heat damage during some analysis. Additionally, the morphology of electrodeposited Li metal is not uniform. In this study, ultra-micro-electrode, air-tight vessels, and cryogenic technique were utilized to discuss the intrinsic properties of electrodeposited Li metal.Theme underDiscussionRechargeable Battery Materials Group, GREEN Kei NishikawaE-mail：： NISHIKAWA.Kei@nims.go.jp□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□（□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□→□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□→□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□：□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□
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