Abstract: A negative active material for a rechargeable lithium battery includes a core including an active material being capable of performing reversible electrochemical oxidation and reduction, and a coating layer on the surface of the core. The coating layer includes a reticular structure including —O-M-O— wherein M is selected Si, Ti, Zr, Al, or combinations thereof and an organic functional group linked to the M as a side chain. The organic functional group is selected from the group consisting of an alkyl group, a haloalkyl group, a substituted or unsubstituted aryl group, and combinations thereof. The negative active material for a rechargeable lithium battery according to the present invention can be applied along with an aqueous binder, and improve high capacity, good cycle-life, and particularly high capacity during charge and discharge at a high rate.

Abstract: A rechargeable lithium battery including: a negative electrode including lithium-vanadium-based oxide, negative active material; a positive electrode including a positive active material to intercalate and deintercalate lithium ions; and an electrolyte including a non-aqueous organic solvent, and a lithium salt. The lithium salt includes 0.7 to 1.2M of a first lithium salt including LiPF6; and 0.3 to 0.8M of a second lithium salt selected from the group consisting of LiBC2O4F2, LiB(C2O4)2, LiN(SO2C2F5)2, LiN(SO2CF3)2, LiBF4, LiClO4, and combinations thereof.

Abstract: Negative active materials, negative electrodes, and rechargeable lithium batteries are provided. A negative electrode according to one embodiment includes a non-carbon-based active material, a lithium salt having an oxalatoborate structure, and a high-strength polymer binder. The negative active material may include a non-carbon-based material and a coating layer on the non-carbon-based material. The coating layer includes a lithium salt having an oxalatoborate structure and a high-strength polymer binder. A rechargeable lithium battery including the negative electrode or negative active material has good cycle life characteristics and high capacity.

Abstract: Negative active materials, negative electrodes, and rechargeable lithium batteries are provided. A negative electrode according to one embodiment includes a non-carbon-based active material, a lithium salt having an oxalatoborate structure, and a high-strength polymer binder. The negative active material may include a non-carbon-based material and a coating layer on the non-carbon-based material. The coating layer includes a lithium salt having an oxalatoborate structure and a high-strength polymer binder. A rechargeable lithium battery including the negative electrode or negative active material has good cycle life characteristics and high capacity.

Abstract: A negative active material for a rechargeable lithium battery of the present invention includes a lithium-vanadium oxide core material being capable of performing reversible electrochemical oxidation and reduction, and an inorganic oxide coating layer disposed on the surface of the core material. The negative active material can improve stability at the interface between a negative electrode and an electrolyte, charge and discharge efficiency, and cycle-life, and can be applied along with all kinds of aqueous and non-aqueous binders.

Abstract: A rechargeable lithium battery including: a negative electrode comprising lithium-vanadium oxide having the following Formula 1 and being capable of intercalating and deintercalating lithium ions, and a carbon-based material; a positive electrode comprising a positive active material capable of intercalating and deintercalating lithium ions; and an electrolyte comprising a monomer including alkylene oxide and a reactive double bond, a lithium salt, and a non-aqueous organic solvent. LixMyVzO2+d??Chemical Formula 1 In Formula 1, 0.1?x?2.5, 0?y?0.5, 0.5?z?1.5, 0?d?0.5, and M is at least one metal selected from the group consisting of Al, Cr, Mo, Ti, W, and Zr.

Abstract: Negative active materials, negative electrodes, and rechargeable lithium batteries are provided. A negative electrode according to one embodiment includes a non-carbon-based active material, a lithium salt having an oxalatoborate structure, and a high-strength polymer binder. The negative active material may include a non-carbon-based material and a coating layer on the non-carbon-based material. The coating layer includes a lithium salt having an oxalatoborate structure and a high-strength polymer binder. A rechargeable lithium battery including the negative electrode or negative active material has good cycle life characteristics and high capacity.

Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode for a rechargeable lithium battery includes a current collector, and a negative active material layer on the current collector. The negative active material layer includes an interpenetrating network network, and a negative active material in the interpenetrating network network. The interpenetrating network is formed by cross-linking a first polymer having a hydroxyl or amine group and a second polymer having a carboxylic acid group. The negative electrode for a rechargeable lithium battery minimizes volume expansion and imparts good cycle-life characteristics and initial formation efficiency.

Abstract: Disclosed is a non-aqueous electrolyte and a lithium rechargeable battery including the same, a first lithium salt represented by the following Chemical Formula 1, and a second lithium salt excluding boron. In the above Chemical Formula 1, Ra to Rd are substituted or unsubstituted alkyl, substituted or unsubstituted alkylene, substituted or unsubstituted alkylene oxide, or a halogen, or one or more non-adjacent —CH2— in the alkyl, alkylene, and alkyleneoxide is/are replaced with —CO—. At least two of Ra to Rd may be fused to form a ring. The non-aqueous electrolyte according to one embodiment of the present invention improves the cycle-life characteristic of high capacity battery by forming a stable passivation film in the interface between the negative electrode and the non-aqueous electrolyte and increasing the concentration of lithium ion in electrolyte.

Abstract: Negative active materials, negative electrodes, and rechargeable lithium batteries are provided. A negative electrode according to one embodiment includes a non-carbon-based active material, a lithium salt having an oxalatoborate structure, and a high-strength polymer binder. The negative active material may include a non-carbon-based material and a coating layer on the non-carbon-based material. The coating layer includes a lithium salt having an oxalatoborate structure and a high-strength polymer binder. A rechargeable lithium battery including the negative electrode or negative active material has good cycle life characteristics and high capacity.

Abstract: A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode for a rechargeable lithium battery includes a current collector, and a negative active material layer on the current collector. The negative active material layer includes an interpenetrating network network, and a negative active material in the interpenetrating network network. The interpenetrating network is formed by cross-linking a first polymer having a hydroxyl or amine group and a second polymer having a carboxylic acid group. The negative electrode for a rechargeable lithium battery minimizes volume expansion and imparts good cycle-life characteristics and initial formation efficiency.

Abstract: A rechargeable lithium battery including: a negative electrode including lithium-vanadium-based oxide, negative active material; a positive electrode including a positive active material to intercalate and deintercalate lithium ions; and an electrolyte including a non-aqueous organic solvent, and a lithium salt. The lithium salt includes 0.7 to 1.2M of a first lithium salt including LiPF6; and 0.3 to 0.8M of a second lithium salt selected from the group consisting of LiBC2O4F2, LiB(C2O4)2, LiN(SO2C2F5)2, LiN(SO2CF3)2, LiBF4, LiClO4, and combinations thereof.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material that can reversely intercalate/deintercalate lithium ions, a negative electrode including a negative active material that can reversely intercalate/deintercalate lithium ions, and a non-aqueous electrolyte including includes a non-aqueous organic solvent, a lithium salt, and at least one additive including a dinitrile-based compound. The negative active material includes a compound represented by LixMyVzO2+d wherein 0.1?x?2.5, 0?y?0.5, 0.5?z?1.5, 0?d?0.5, and M is a metal selected from the group consisting of Al, Cr, Mo, Ti, W, Zr, and combinations thereof.

Abstract: A rechargeable lithium battery including: a negative electrode comprising lithium-vanadium oxide having the following Formula 1 and being capable of intercalating and deintercalating lithium ions, and a carbon-based material; a positive electrode comprising a positive active material capable of intercalating and deintercalating lithium ions; and an electrolyte comprising a monomer including alkylene oxide and a reactive double bond, a lithium salt, and a non-aqueous organic solvent. LixMyVzO2+d??Chemical Formula 1 In Formula 1, 0.1?x?2.5, 0?y?0.5, 0.5?z?1.5, 0?d?0.5, and M is at least one metal selected from the group consisting of Al, Cr, Mo, Ti, W, and Zr.

Abstract: A negative active material for a rechargeable lithium battery includes a core including an active material being capable of performing reversible electrochemical oxidation and reduction, and a coating layer on the surface of the core. The coating layer includes a reticular structure including —O-M-O— wherein M is selected Si, Ti, Zr, Al, or combinations thereof and an organic functional group linked to the M as a side chain. The organic functional group is selected from the group consisting of an alkyl group, a haloalkyl group, a substituted or unsubstituted aryl group, and combinations thereof. The negative active material for a rechargeable lithium battery according to the present invention can be applied along with an aqueous binder, and improve high capacity, good cycle-life, and particularly high capacity during charge and discharge at a high rate.

Abstract: A negative active material for a rechargeable lithium battery of the present invention includes a lithium-vanadium oxide core material being capable of performing reversible electrochemical oxidation and reduction, and an inorganic oxide coating layer disposed on the surface of the core material. The negative active material can improve stability at the interface between a negative electrode and an electrolyte, charge and discharge efficiency, and cycle-life, and can be applied along with all kinds of aqueous and non-aqueous binders.