Polyfluorinated boron cluster anions for lithium electrolytes

Details Polyfluorinated boron cluster anions for lithium electrolytes Polyfluorinated boron cluster anions for lithium electrolytes

2007-12-25

2007-12-25

Yuan, Dah-Wei (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Adjuncts in combination with or for connection to an...

C429S342000, C429S199000, C429S207000

Reexamination Certificate

active

10655476

ABSTRACT:
The present invention relates to an improvement in lithium secondary batteries comprised of a negative electrode, a positive electrode, a separator, and a lithium-based electrolyte carried in an aprotic solvent and to the electrolyte compositions. The improvement resides in the use of a lithium electrolyte of the formula:in-line-formulae description="In-line Formulae" end="lead"?Li2B12FxZ12-xin-line-formulae description="In-line Formulae" end="tail"?wherein x=>5 and Z represents H, Cl, and Br. Preferably, when x is less than 12, Z is Cl.

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