Ultra-Low-Dose Pre-Metallation Strategy Served for Commercial Metal-Ion Capacitors.

ABSTRACT:

Highlights

Interfacial bonding strategy has been successfully applied to address the high overpotential issue of sacrificial additives, which reduced the decompositon potential of Na₂C₂O₄ from 4.50 to 3.95 V. Ultra-low-dose technique assisted commercial sodium ion capacitor (AC//HC) could deliver a remarkable energy density of 118.2 Wh kg^-1 as well as excellent cycle stability. In-depth decomposition mechanism of sacrificial compound and the relative influence after pre-metallation were revealed by advanced in situ and ex situ characterization approaches. Sacrificial pre-metallation strategy could compensate for the irreversible consumption of metal ions and reduce the potential of anode, thereby elevating the cycle performance as well as

SUBMITTER: Song Z 

PROVIDER: S-EPMC8800971 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature