title: Li2O-Reinforced Cu Nanoclusters as Porous Structure for Dendrite-Free and Long-Lifespan Lithium Metal Anode.
abstract: A nanostructured protective structure, pillared by the copper nanoclusters and in situ filled with lithium oxide in the interspace, is constructed to efficiently improve the cyclic stability and lifetime of lithium metal electrodes. The porous structure of copper nanoclusters enables high specific surface area, locally reduced current density, and dendrite suppressing, while the filled lithium oxide leads to the structural stability and largely extends the electrode lifespan. As a result of the synergetic protection of the proposed structure, lithium metal could be fully discharged with efficiency ∼97% for more than 150 cycles in corrosive alkyl carbonate electrolytes, without dendrite formation. This approach opens a novel route to improve the cycling stability of lithium metal electrodes with the appropriate protective structure.
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China.|ShanghaiTech University , Shanghai 200031, China.
authors.forename: Zhenggang
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China.
authors.forename: Xiaoyue
authors.initials: X
authors.lastname: Xu
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China.
authors.forename: Shuwei
authors.initials: S
authors.lastname: Wang
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China.
authors.forename: Zhe
authors.initials: Z
authors.lastname: Peng
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China.
authors.forename: Meng
authors.initials: M
authors.lastname: Liu
authors.affiliation: Materials Genome Institute, Shanghai University , Shanghai 200444, China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China.
authors.forename: Cai
authors.initials: C
authors.lastname: Shen
authors.affiliation: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China.|Materials Genome Institute, Shanghai University , Shanghai 200444, China.
authors.forename: Deyu
authors.initials: D
authors.lastname: Wang
keywords: alkyl carbonate electrolyte; copper oxide nanostructure; coulombic efficiency; dendrite; lithium metal anode; solid electrolyte interphase layer