skip to main content

SciTech ConnectSciTech Connect

Title: Controlling SEI Formation on SnSb-Porous Carbon Nanofibers for Improved Na Ion Storage

Porous carbon nanofiber (CNF)-supported tin-antimony (SnSb) alloys is synthesized and applied as sodium ion battery anode. The chemistry and morphology of the solid electrolyte interphase (SEI) film and its correlation with the electrode performance are studied. The addition of fluoroethylene carbonate (FEC) in electrolyte significantly reduces electrolyte decomposition and creates a very thin and uniform SEI layer on the cycled electrode surface which could promote the kinetics of Na-ion migration/transportation, leading to excellent electrochemical performance.
Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
1158976
Report Number(s):
PNNL-SA-98915
47476; KC0203020
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Advanced Materials, 26(18):2901-2908
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
Na-ion battery; solid electrolyte interphase (SEI) layer; fluoroethylene carbonate (FEC); electrochemical performance; Environmental Molecular Sciences Laboratory