Patent ID: 8883356

Claim:
An electrolyte comprising: a lithium salt; a solvent; and an additive, wherein the additive comprises substances A, B and C, wherein substance A is vinylene carbonate, wherein substance B has the chemical structure of at least one of wherein R 2 represents a straight-chain alkane having the general formula C n H 2n+1 , wherein 0≦n≦3, wherein R 3 represents a straight-chain alkane having the general formula C n H 2n , wherein 1≦n≦4, wherein R 4 represents a straight-chain alkane having the general formula C n H 2n+1−a Y a , wherein 0≦n≦4, wherein R 5 represents a straight-chain alkane having the general formula C n H 2n+1−b Z b , wherein 0≦n≦3, wherein X, Y and Z is selected from at least one of F and Cl, wherein a and b is greater than or equal to 0, but not equal to 0 at the same time, and wherein substance C includes at least 1,3 2-dioxathiane, 2-oxide, and wherein the amount of substance A can be from about 0.1% to about 10% of the electrolyte by weight, wherein the amount of substance B can be from about 0.5% to about 25% of the electrolyte by weight, and wherein the amount of substance C can be from about 1% to about 15% of the electrolyte by weight.