High reversible Li plating and stripping by in-situ construction a multifunctional lithium-pinned array

Pan Xu, Xiaodong Lin, Xinyu Hu, Xueyang Cui, Xiaoxiang Fan, Cui Sun, Xiaoming Xu, Jeng Kuei Chang, Jingmin Fan, Ruming Yuan, Bingwei Mao, Quanfeng Dong, Mingsen Zheng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


Lithium metal is the most promising anode candidate because of its ultrahigh theoretical specific capacity. Unfortunately, its high reactivity, uncontrolled dendrites, “dead lithium” formation, and infinite volume expansion hinder its commercial application. Herein, by in-situ constructing a multifunctional lithium-pinned array (m-LPA) endowed with functions of lithiophilicity, zoning effect and riveting effect on a surfacely phosphorized three-dimensional (3D) copper foam, a high reversible Li plating/stripping electrochemistry can be achieved. Benefiting from the m-LPA, lithium can uniformly plate/strip both on the surface and in the inner space of the 3D skeletons with improved morphology. Consequently, a high Coulombic efficiency (~98.41%) could be achieved at 1 ​mA ​cm−2 with 1 ​mA ​h cm−2 for over 600 cycles (1200 ​h). Moreover, at a higher current density of 10 ​mA ​cm−2 with 0.5 ​mA ​h cm−2, a symmetric cell with m-LPA@Li electrode could still stably cycle for 900 cycles. Finally, a full cell coupled with LiFePO4 cathode displayed excellent rate performance with a lower overpotential. The conception and strategy of m-LPA, which were first proposed here, are a promising way to realize large-scale application of Li anode.

Original languageEnglish
Pages (from-to)188-195
Number of pages8
JournalEnergy Storage Materials
StatePublished - Jun 2020


  • 3D current collector
  • High reversible Li plating/stripping
  • Lithium metal anode
  • Multifunctional lithium-pinned array (m-LPA)
  • Superior electrochemical performances


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