Chen Juner, Huang Zhenguo, Wang Caiyun, Porter Spencer, Wang Baofeng, Lie Wilford, Liu Hua Kun
Institute for Superconducting and Electronic Materials, Innovation Campus, University of Wollongong, Squires Way, North Wollongong, NSW 2522, Australia.
Chem Commun (Camb). 2015 Jun 18;51(48):9809-12. doi: 10.1039/c5cc02901e.
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/Na0.44MnO2 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.
一种新型电解质盐，二氟（草酸根）硼酸钠（NaDFOB），被合成并进行了研究，当其用于钠/Na0.44MnO2半电池时，能实现出色的可逆容量和高倍率性能。与高氯酸钠（NaClO4）和六氟磷酸钠（NaPF6）依赖溶剂的性能形成强烈对比的是，NaDFOB与钠离子电池中使用的各种常见溶剂具有出色的兼容性。此外，NaDFOB具有良好的稳定性，暴露于空气和水时不会产生有毒或危险的产物。所有这些特性表明，NaDFOB可用于制备用于新兴钠离子电池的高性能电解质。
