Lithium (Li) metal is strongly regarded as a promising anode for next‐generation secondary batteries. However, the nonuniform plating/stripping and volume fluctuation of the Li metal anode give rise to low Coulombic efficiency and short lifespan of Li metal batteries, which hinder practical applications of the Li metal anode. A composite Li metal anode that employs a stable porous host has been proposed as a promising strategy to regulate the behaviors of Li plating/stripping and relieve volume fluctuation. In a porous host, the basic building block is a pore. The pore structure affects the distribution of electric and Li‐ion concentration fields during Li plating/stripping, thus regulating Li plating/stripping and the lifespan of the composite Li metal anode. Therefore, herein, the recent progress in investigating the behavior of Li plating/stripping in a pore based on liquid electrolytes is summarized from the aspects of pore diameter, depth, and tortuosity. Furthermore, the perspectives of rational design of the pore structure for a composite Li metal anode are presented to promote the development of Li metal anodes.

中文翻译：

---

多孔主体中锂金属电镀/剥离的见解：进展和观点

金属锂（​​Li）被强烈认为是下一代二次电池的有希望的阳极。然而，锂金属阳极的不均匀电镀/剥落和体积波动导致锂金属电池的库仑效率低和寿命短，这阻碍了锂金属阳极的实际应用。已经提出了采用稳定的多孔基质的复合锂金属阳极作为一种有前途的策略，以调节锂电镀/剥离的行为并缓解体积波动。在多孔主体中，基本构件是孔。孔结构会影响锂镀/剥离过程中电和锂离子浓度场的分布，从而调节锂镀/剥离和复合锂金属阳极的寿命。因此，在这里，从孔的直径，深度和曲折度的角度总结了研究基于液体电解质的孔中锂电镀/剥离行为的最新进展。此外，提出了合理设计复合锂金属阳极孔结构的观点，以促进锂金属阳极的发展。