A Pentafluorophenylboron Oxalate Additive in Non-aqueous Electrolytes 3 for Lithium Batteries
A novel compound named pentafluorophenylboron oxalate (PFPBO) has been synthesized. PFPBO has a unique molecular structure containing a boron atom center with electron deficiency and an oxalate group. It is found that when PFPBO is used as additive, the solubility of lithium fluoride (LiF) or lithium oxide (Li{sub 2}O, Li{sub 2}O{sub 2}) in propylene carbonate (PC) and dimethyl carbonate (DMC) solvents can be increased dramatically. The new electrolytes show high ionic conductivity, high lithium ion transference number and good compatibility with LiMn{sub 2}O{sub 4} cathode and MCMB anode. PFPBO was synthesized with the designed structure to act as a bi-functional additive: boron-based anion receptor (BBAR) additive and stable solid electrolyte interphase (SEI) formation additive in PC-based electrolytes. The results show it does possess these two desired functionalities.
- Research Organization:
- Brookhaven National Laboratory (BNL) National Synchrotron Light Source
- Sponsoring Organization:
- DOE/Office Of Energy Efficiency & Renewable Energy
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 1004642
- Report Number(s):
- BNL--90619-2011-JA; VT0301010
- Journal Information:
- Electrochemistry Communications, Journal Name: Electrochemistry Communications Journal Issue: 12 Vol. 11; ISSN 1388-2481
- Country of Publication:
- United States
- Language:
- English
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