A Facile Surface Preservation Strategy for the Lithium Anode for High-Performance Li-O₂ Batteries.

ABSTRACT: Protecting an anode from deterioration during charging/discharging has been seen as one of the key strategies in achieving high-performance lithium (Li)-O₂ batteries and other Li-metal batteries with a high energy density. Here, we describe a facile approach to prevent the Li anode from dendritic growth and chemical corrosion by constructing a SiO₂/GO hybrid thin layer on the surface. The uniform pore-preserving layer can conduct Li ions in the stripping/plating process, leading to an effective alleviation of the dendritic growth of Li by guiding the ion flux through the microstructure. Such a preservation technique significantly enhances the cell performance by enabling the Li-O₂ cell to cycle up to 348 times at 1 A·g^-1 with a capacity of 1000 m

SUBMITTER: Luo Z 

PROVIDER: S-EPMC7303970 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature