Wire-in-Wire TiO₂/C Nanofibers Free-Standing Anodes for Li-Ion and K-Ion Batteries with Long Cycling Stability and High Capacity.

ABSTRACT: Wearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO₂/C nanofibers (TiO₂ ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire-in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ultimately, TiO₂ ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g^-1 at 5 A g^-1 after 6000 cycles in Li

SUBMITTER: Su D 

PROVIDER: S-EPMC8035377 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature