Ultrahigh Nitrogen Content Carbon Nanosheets for High Stable Sodium Metal Anodes.

ABSTRACT: Sodium metal, with a high theoretical specific capacity of 1165 mAh g^-1 , is the ultimate anode for sodium batteries, yet how to deal with the inhomogeneous and dendritic sodium deposition and the infinite relative dimension change of sodium metal anodes during sodium depositing/stripping is still challenging. Here, a facile fabricated sodiuphilic 2D N-doped carbon nanosheets (N-CSs) are proposed as sodium host material for sodium metal batteries (SMBs) to prevent dendrite formation and eliminate volume change during cycling. Revealing from combined in situ characterization analyses and theoretical simulations, the high nitrogen content and porous nanoscale interlayer gaps of the 2D N-CSs can not only concede dendrite-free sodium stripping/depositing but also accommodate the inf

SUBMITTER: Huang B 

PROVIDER: S-EPMC10104674 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature