Abstract: The present invention relates to an electrolyte for a lithium secondary battery including an electrolyte, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1; and wherein an amount of the additive is 0.1 wt % to 10 wt % based on the total the electrolyte, and the lithium secondary battery has an energy density of 200 Wh/L or more: wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: The present invention relates to a lithium secondary battery including a positive electrode including a positive active material, the positive active material including a nickel-containing lithium transition metal compound; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive comprising a compound represented by Chemical Formula 1, wherein the content of Ni is 60 mol % or more based on 100 mol % of the total transition metals in the lithium transition metal compound. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4—)n, and n is an integer from 1 to 10.

Abstract: The present invention relates to a lithium secondary battery including a positive electrode including a positive active material layer, the positive active material layer including a positive active material and a carbonaceous nanostructure; a negative electrode including a negative active material; and an electrolyte. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1, wherein the amount of the carbonaceous nanostructure is about 0.5 wt % or more and less than 4 wt % based on 100 wt % of the total amount of the positive active material layer. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: Aspects of embodiments of the present disclosure provide an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and additive represented by Chemical Formula 1: In Chemical Formula 1, X1 is CH or a nitrogen atom (N), and Ra is a substituted or unsubstituted alkyl group. The additive may decompose under reducing voltages on the surface of the negative electrode to thereby form a polysulfonate-based passivation film to suppress or reduce gas generation and battery swelling.

Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte, the electrolyte including a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1: in Chemical Formula 1, R1 is a cyano group, a substituted or unsubstituted C2 to C10 alkenyl group, or a substituted or unsubstituted C2 to C10 alkynyl group.

Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte, the electrolyte including a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1: wherein, in Chemical Formula 1, R is a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C2 to C10 alkenyl group, a substituted or unsubstituted C2 to C10 alkynyl group, a substituted or unsubstituted C3 to C10 cycloalkyl group, a substituted or unsubstituted C3 to C10 cycloalkenyl group, or a substituted or unsubstituted C6 to C20 aryl group, and n is an integer of 1 to 3.

Abstract: The present invention relates to an electrolyte for a lithium secondary battery, and a lithium secondary battery including the electrolyte. The electrolyte includes a non-aqueous organic solvent; a lithium salt; a first additive including a compound represented by Chemical Formula 1; and a second additive including LiN(CxF2x+1SO2)(CyF2y+1SO2), wherein 0?x?20 and 0?y?20: wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: A rechargeable lithium battery includes a positive electrode, a negative electrode, and an electrolyte including a lithium salt, wherein at least one of the positive electrode and the negative electrode includes a current collector, an electrode tab extending from the current collector, an active material layer disposed on the current collector, and a passivation film formed on at least one of the current collector and the electrode tab. The passivation film includes a material represented by Chemical Formula 1: CuX(POF2)nY2Z,??Chemical Formula 1 wherein, in Chemical Formula 1, X is a C1 to C10 alkylene group, Y is represented by Chemical Formula 2, Z is an anion group of the lithium salt, and n is 1 or 2: NC—R1—CN, (wherein, R1 is a C1 to C10 alkylene group).

Abstract: An additive represented by Chemical Formula 1, an electrolyte for a rechargeable lithium battery including the same, and a rechargeable lithium battery, wherein, in Chemical Formula 1, R1 to R6 are each independently a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C2 to C10 alkenyl group, a substituted or unsubstituted C3 to C10 cycloalkyl group, a substituted or unsubstituted C3 to C10 cycloalkenyl group, or a substituted or unsubstituted C6 to C20 aryl group.

Abstract: An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery, the additive being represented by Chemical Formula 1:

Abstract: The present invention relates to a lithium secondary battery. The lithium secondary battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1. The negative active material includes Si at about 0.1 wt % to about 32 wt % in amount based on a total weight of the negative active material. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4—)n, and n is an integer from 1 to 10.

Abstract: Aspects of embodiments of the present disclosure provide an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a compound represented by Chemical Formula 1: The compound represented by Chemical Formula 1 and/or its oxide may participate in one or more electrochemical reactions to form a robust solid electrolyte interphase (SEI) film, and may also improve the stability of other electrolyte components against oxidative decomposition.

Abstract: An electrolyte for a rechargeable lithium battery, including a non-aqueous organic solvent, a lithium salt, and an additive is disclosed. The additive includes a compound represented by Chemical Formula 1. In Chemical Formula 1, each substituent is the same as described in the detailed description.

Abstract: An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery, the additive being represented by Chemical Formula 1:

Abstract: The present invention relates to an electrolyte for a lithium secondary battery, and a lithium secondary battery including the electrolyte. The electrolyte includes a non-aqueous organic solvent; a lithium salt; a first additive including a compound represented by Chemical Formula 1; and a second additive including LiN(CxF2x+1SO2)(CyF2y+1SO2), wherein 0?x?20 and 0?y?20: wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: The present invention relates to a lithium secondary battery including a positive electrode including a positive active material layer, the positive active material layer including a positive active material and a carbonaceous nanostructure; a negative electrode including a negative active material; and an electrolyte. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1, wherein the amount of the carbonaceous nanostructure is about 0.5 wt % or more and less than 4 wt % based on 100 wt % of the total amount of the positive active material layer. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: The present invention relates to a lithium secondary battery including a positive electrode including a positive active material, the positive active material including a nickel-containing lithium transition metal compound; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive comprising a compound represented by Chemical Formula 1, wherein the content of Ni is 60 mol % or more based on 100 mol % of the total transition metals in the lithium transition metal compound. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: The present invention relates to a lithium secondary battery including an electrolyte including a non-aqueous organic solvent, a lithium salt and an additive comprising a compound represented by Chemical Formula 1; and a battery case in which the electrolyte is housed, wherein the battery case has a shape with a width (W), a height (H), and a thickness (Th), when a maximum value among the width (W), the height (H), and the thickness (Th) is a and a minimum value among the width (W), the height (H), and the thickness (Th) is b, b/a is 0.01 or more: wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: The present invention relates to an electrolyte for a lithium secondary battery including an electrolyte, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1; and wherein an amount of the additive is 0.1 wt % to 10 wt % based on the total the electrolyte, and the lithium secondary battery has an energy density of 200 Wh/L or more: wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

Abstract: Disclosed is an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a compound represented by Chemical Formula 1. In Chemical Formula 1, each substituent is the same as in the detailed description. A rechargeable lithium battery includes: a positive electrode; a negative electrode; and the electrolyte.