Long life lithium batteries with stabilized electrodes

Details Long life lithium batteries with stabilized electrodes Long life lithium batteries with stabilized electrodes

2011-06-28

2011-06-28

Conley, Helen O (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S321000, C429S324000, C429S330000, C429S337000, C429S338000

Reexamination Certificate

active

07968235

ABSTRACT:
The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal(chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

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