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Improving Lithium‐Metal Battery Performance under the Conditions of Lean Electrolyte through MoS 2 Coating
Author(s) -
Cha Eunho,
Lee Hongkyung,
Choi Wonbong
Publication year - 2020
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201901735
Subject(s) - electrolyte , materials science , anode , lithium metal , coating , electrochemistry , battery (electricity) , metal , dendrite (mathematics) , chemical engineering , lithium (medication) , nanotechnology , metallurgy , chemistry , electrode , mathematics , quantum mechanics , endocrinology , engineering , medicine , power (physics) , physics , geometry
Abstract Although lithium‐metal‐based batteries (LMBs) offer one of the highest energy densities, the issues with Li dendrite growths and the chemical reactivity between Li and electrolytes limit their applications. To enable a stable LMB under the practical conditions of lean electrolyte, thin Li metal and high mass loading, we introduce an efficient protective coating of MoS 2 onto the Li‐metal anode and analyzed its electrochemical performance under practical condition. The MoS 2 coating successfully stabilizes the chemical activity of Li‐metal surface by preventing dendrite growth and electrolyte dry‐out, which results in the enhanced Li‐metal battery cycle life by three‐fold under the stringent conditions.