Active oxygen enhanced homogeneous nucleation of Li‐metal on ultrathin layered double hydroxide

The development of safe lithium (Li)‐metal anode is crucial for the next‐generation rechargeable batteries. To stabilize Li metal anode, preplanting Li nucleation seeds on lithiophilic substrates is an efficient strategy to regulate initial nucleation process of Li‐metal. Herein, we first reported the activated ultrathin layered double hydroxide (U‐LDHs) as a promising lithiophilic 2D material to realize the uniform deposition of Li metal. The experimental studies and DFT calculations reveal that the active oxygen on U‐LDHs provides abundent atomic‐scale active sites for Li homogeneous nucleation and plating. Moreover, the lithiophilic property of active oxygen is also related to its coordination environments. This work opens up an opportunity to more accurate regulation and understanding of Li nucleation from atomic‐scale based on 2D ultrathin materials.

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