Title:
Design in-situ and ex-situ formed coatings to increase the stability of FeF3 Na-Ion cathodes
Design in-situ and ex-situ formed coatings to increase the stability of FeF3 Na-Ion cathodes
Author(s)
Sun, Zifei
Lu, Peilin
Fu, Wenbin
Wang, Baichuan
Magasinski, Alexandre
Zhang, Yawei
Yushin, Gleb
Lu, Peilin
Fu, Wenbin
Wang, Baichuan
Magasinski, Alexandre
Zhang, Yawei
Yushin, Gleb
Advisor(s)
Editor(s)
Collections
Supplementary to
Permanent Link
Abstract
Iron fluoride (FeF3) is considered as a potential cathode for sodium-ion batteries due to its high capacity and low cost. However, the dissolution of active materials during cycling limits its further development. Herein, we design thin protective films at the surface of cathode materials by in-situ and ex-situ method. In in-situ method, an electrolyte of sodium-difluoro(oxalate)borate (NaDFOB) dissolved in a ternary solvent was utilized to develop the in-situ protective films. Ex-situ formed coatings are developed by atomic layer deposition technique. Both coatings minimize the active material dissolution and significantly improved the overall electrochemical performance of FeF3 cathodes in SIBs.
Sponsor
United States. Army Research Office - W911NF-17-1-0053
Date Issued
2020-01
Extent
Resource Type
Text
Resource Subtype
Poster
Abstract
Abstract