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A new class of electrochemically and thermally stable lithium salts for lithium battery electrolytes. 3: Synthesis and properties of some lithium organoborates

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/1.1837254· OSTI ID:428166
; ; ;  [1]
  1. Univ. Regensburg (Germany). Inst. fuer Theoretische und Physikalische Chemie
Synthesis, analysis, and purification of new lithium salts for lithium batteries, lithium bis[tetrafluoro-1,2-benzene-diolato(2-)-O,O{prime}]borate and lithium bis[2,3-naphthalenediolato(2-)-O,O{prime}]borate are described, and the results of electrochemical studies of these salts and of lithium bis[3-fluoro-1,2-benzenediolato(2-)-O,O{prime}]borate, in propylene carbonate are reported. The effect of the electron-withdrawing substituent fluorine results in an increase of the electrochemical window by 0.1 V/fluorine per one chelate ligand. The slope, which can be calculated from the linear correlation of the highest occupied molecular orbital energies with anodic oxidation potentials is {minus}3.0 eV/V, a value equal to that known for aryl borates and fluoroaryl borates.
Sponsoring Organization:
USDOE
OSTI ID:
428166
Journal Information:
Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 11 Vol. 143; ISSN 0013-4651; ISSN JESOAN
Country of Publication:
United States
Language:
English