Thickness-independent scalable high-performance Li-S batteries with high areal sulfur loading via electron-enriched carbon framework.

ABSTRACT: Increasing the energy density of lithium-sulfur batteries necessitates the maximization of their areal capacity, calling for thick electrodes with high sulfur loading and content. However, traditional thick electrodes often lead to sluggish ion transfer kinetics as well as decreased electronic conductivity and mechanical stability, leading to their thickness-dependent electrochemical performance. Here, free-standing and low-tortuosity N, O co-doped wood-like carbon frameworks decorated with carbon nanotubes forest (WLC-CNTs) are synthesized and used as host for enabling scalable high-performance Li-sulfur batteries. EIS-symmetric cell examinations demonstrate that the ionic resistance and charge-transfer resistance per unit electro-active surface area of S@WLC-CNTs do not change with the v

SUBMITTER: Wang N 

PROVIDER: S-EPMC8313709 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature