Electrolyte formulation with silicon-containing additive for lithium-ion batteries

Abstract

A lithium-ion battery has anode active material, nickel-based cathode active material, and an electrolyte. The electrolyte has the following formulation: a carbonate-based solvent; LiPF6; vinylene carbonate; and an additive that satisfies the following: less than or equal to nine carbons; at least one unsaturated bond; a predicted oxidation potential Vox of 2.0<Vox<4.5; and a five-membered ring with a silicon heteroatom.

Dependencies are inferred from the claim text.