Improving Lithium‐Metal Battery Performance under the Conditions of Lean Electrolyte through MoS₂ Coating

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.