Fabrication of double core-shell Si-based anode materials with nanostructure for lithium-ion battery.

ABSTRACT: Yolk-shell structure is considered to be a well-designed structure of silicon-based anode. However, there is only one point (point-to-point contact) in the contact region between the silicon core and the shell in this structure, which severely limits the ion transport ability of the electrode. In order to solve this problem, it is important that the core and shell of the core-shell structure are closely linked (face-to-face contact), which ensures good ion diffusion ability. Herein, a double core-shell nanostructure (Si@C@SiO₂) was designed for the first time to improve the cycling performance of the electrode by utilising the unique advantages of the SiO₂ layer and the closely contacted carbon layer. The improved cycling performance was evidenced by comparing the cyc

SUBMITTER: Wu P 

PROVIDER: S-EPMC9078599 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature