Sodium-difluoro(oxalato)borate (NaDFOB): A new electrolyte salt for Na-ion batteries

Authors

Juner Chen, Chinese Academy of Sciences
Zhenguo Huang, University of WollongongFollow
Caiyun Wang, University of WollongongFollow
Spencer H. Porter, University of WollongongFollow
Baofeng Wang, University of WollongongFollow
Wilford Lie, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow

RIS ID

101417

Publication Details

Chen, J., Huang, Z., Wang, C., Porter, S., Wang, B., Lie, W. & Liu, H. (2015). Sodium-difluoro(oxalato)borate (NaDFOB): A new electrolyte salt for Na-ion batteries. Chemical Communications, 51 (48), 9809-9812.

Abstract

A new electrolyte salt, sodium-difluoro(oxalato)borate (NaDFOB), was synthesized and studied, which enables excellent reversible capacity and high rate capability when used in Na/Na_0.44MnO₂ half cells. NaDFOB has excellent compatibility with various common solvents used in Na-ion batteries, in strong contrast to the solvent dependent performances of NaClO₄ and NaPF₆. In addition, NaDFOB possesses good stability and generates no toxic or dangerous products when exposed to air and water. All these properties demonstrate that NaDFOB could be used to prepare high performance electrolytes for emerging Na-ion batteries.