Nonaqueous Electrolyte for Lithium Ion and Lithium Metal Batteries
AssigneeEnerize Corporation
InventorsElena Shembel, Irina M. Maksyuta, Volodymyr Redko, Tymofiy V. Pastushkin
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Abstract
Nonaqueous electrolyte for high energy Li-ion batteries or batteries with lithium metal anode, in which the composition of additives are introduced to increase specific characteristics of lithium batteries including stability of the parameters during cycling and security of the battery operations, when the composition of the additives comprises the compounds from the class of esters, low molecular weight silicon quaternary ammonium salts, and macromolecular polymer organosilicon quaternary ammonium salts.
Claims14
A non-aqueous electrolyte comprising:
- (a) an aprotic solvent,
- (b) a salt of an alkali metal, and
- (c) an additive composition comprising
- (i) a crown ether,
- (ii) a low molecular weight organosilicon quaternary ammonium salt, and
- (iii) a polymer comprising organosilicon quaternary ammonium salt units.
A lithium-ion battery comprising a cathode, an anode and a non-aqueous electrolyte, said electrolyte comprising:
- (a) an aprotic solvent,
- (b) a salt of an alkali metal, and
- (c) an additive composition comprising
- (i) a crown ether,
- (ii) a low molecular weight organosilicon quaternary ammonium salt, and
- (iii) a polymer comprising organosilicon quaternary ammonium salt units.
The lithium-ion battery of claim 12 wherein said anode intercalates lithium cations.
A lithium battery comprising a cathode, an anode and a non-aqueous electrolyte, said electrolyte comprising:
- (a) an aprotic solvent,
- (b) a salt of an alkali metal, and
- (c) an additive composition comprising
- (i) a crown ether,
- (ii) a low molecular weight organosilicon quaternary ammonium salt, and
- (iii) a polymer comprising organosilicon quaternary ammonium salt units.
The lithium battery of claim 14 wherein said anode comprises lithium metal or lithium alloys.
Dependencies are inferred from the claim text.