Abstract: Disclosed are a positive active material composition for an electrochemical device, a positive electrode, and an electrochemical device including the same. The positive active material composition includes: a carbon-based additive including a hydroxyl group (—OH) and an enol group (—C?C—OH) on the surface, having a peak area ratio (OH/C?COH) of a hydroxyl group peak area and an enol group peak area of an infrared spectroscopy (FT-IR) spectrum ranging from about 0.5 to about 10, having a specific surface area of about 50 m2/g to about 3000 m2/g, and having an oxygen-containing heterogeneous element in a content of less than about 15 wt %; a positive active material; a conductive material; and a binder.

Abstract: Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector; and a positive active material layer including an additive which is LixV2O5 (1<x<4) or a composite of LixV2O5 (1<x<4) and metal oxide, and a positive active material, and being disposed on the current collector.

Abstract: A rechargeable lithium battery module includes a first rechargeable lithium battery cell combined with a second rechargeable lithium battery cell, the first rechargeable lithium battery cell being the same or different than the second rechargeable lithium battery cell, and the rechargeable lithium battery module has an output voltage of about 13.6 V to about 15.6 V.

Abstract: A battery module for a rechargeable battery. The battery module has low contact resistance and includes: a plurality of electrode assemblies incorporating a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode; a housing installed with the electrode assembly; and at least one conductive barrier inserted in the housing thereby dividing the space inside the housing, and electrically connecting the plurality of electrode assemblies.

Abstract: A positive electrode for a rechargeable lithium battery including a current collector and a positive active material layer disposed on the current collector, a method of manufacturing the positive electrode, and a rechargeable lithium battery including the positive electrode. Here, the positive active material layer includes a positive active material and a coating layer on the surface of the positive active material, wherein the coating layer is formed of a coating layer composition including carbon nano particles, polyvinylpyrrolidone, and polyvinylidene fluoride.

Abstract: Provided are A carbon-based material having a FWHM ranging from 2.5° to 6.0° at 2? ranging from 20° to 30° in a XRD pattern using CuK? ray and a peak area ratio ranging from 1.0 to 100.0 between FWHM at 2? ranging from 20° to 30° and FWHM at 2? ranging from 50° to 53°, and a method of manufacturing the carbon-based material, and a negative electrode and a rechargeable lithium battery including the same.

Abstract: A negative active material for a rechargeable lithium battery that includes a core including a compound represented by the following Chemical Formula 1, and a carbon layer disposed on the core and including low crystalline carbon. LixTiyOz ??[Chemical Formula 1] where 0.1?x?4, 1?y?5, and 2?z?12.

Abstract: A crystalline carbon material with controlled interlayer spacing and a method of manufacturing the crystalline carbon material are disclosed. The crystalline carbon material has peaks of a (002) plane at 2?=23°±5.0° and 2?=26.5°±1.0° when X-ray diffraction is measured using a CuK? ray. The peak height at 2?=23°±5.0° is higher than the one at 2?=26.5°±1.0°.

Abstract: A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material for a rechargeable lithium battery includes lithium titanium oxide (Li4Ti5O12) having a tap density of about 1.2 g/cc to 2.2 g/cc. The lithium titanium oxide is prepared by a mechano-chemical treatment and a heat treatment at a low temperature of about 650° C. to 775° C. According to the present invention, lithium titanium oxide having high crystallinity and tap density can be prepared through a simple and low-cost solid-phase method, e.g., a mechano-chemical treatment, and thus an electrode with excellent electrochemical reactivity and high energy density per volume can be fabricated.

Abstract: A crystalline carbon material with controlled interlayer spacing and a method of manufacturing the crystalline carbon material are disclosed. The crystalline carbon material has peaks of a (002) plane at 2?=23°±5.0° and 2?=26.5°±1.0° when X-ray diffraction is measured using a CuK? ray. The peak height at 2?=23°±5.0° is higher than the one at 2?=26.5°±1.0°.

Abstract: Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector; and a positive active material layer including an additive which is LixV2O5 (1<x<4) or a composite of LixV2O5 (1<x<4) and metal oxide, and a positive active material, and being disposed on the current collector.

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The active material includes a silicon-containing compound represented by the following Chemical Formula 1 where Si exists with a concentration gradient from the surface to the center of the negative active material: SiCx??[Chemical Formula 1] where 1, 0.05?x?1.5.

Abstract: Disclosed are a positive active material composition for an electrochemical device, a positive electrode, and an electrochemical device including the same. The positive active material composition includes: a carbon-based additive including a hydroxyl group (—OH) and an enol group (—C?C—OH) on the surface, having a peak area ratio (OH/C?COH) of a hydroxyl group peak area and an enol group peak area of an infrared spectroscopy (FT-IR) spectrum ranging from about 0.5 to about 10, having a specific surface area of about 50 m2/g to about 3000 m2/g, and having an oxygen-containing heterogeneous element in a content of less than about 15 wt %; a positive active material; a conductive material; and a binder.

Abstract: A negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same, the negative active material including carbon core particles; a metallic material on the carbon core particles; and a carbon thin film covering the carbon core particles and the metallic material, wherein the carbon core particles have an interplanar spacing (d002) of about 0.34 nm to about 0.40 nm at a (002) plane measured by X-ray diffraction (XRD) using a CuK? ray, and the carbon thin film has a thickness of about 1 nm to about 500 nm.

Abstract: Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material may include a metal oxide in an amount of about 20 wt % or more, and has a specific surface area of about 500 m2/g or less. The negative active material may be fiber including carbon black in which a metal oxide is internally impregnated and combined. This fiber includes only carbon black and a metal oxide internally doped. The fiber may have nanofiber having an average diameter ranging from about 50 nm to about 900 nm. In another embodiment, the fiber may have an average diameter ranging from about 150 nm to about 900 nm. When the fiber has an average diameter within these ranges, a metal oxide nanoparticle is internally well-impregnated, accomplishing excellent performance.

Abstract: An active material for a rechargeable lithium battery and a rechargeable battery, the active material including an active material core; and a thin film graphite layer on the core.

Abstract: A crystalline carbonaceous material with a controlled interlayer spacing and a method of manufacturing the same. In one embodiment, a crystalline carbonaceous material has a layered structure including a plurality of layers and where a filler is present between the layers. The layers with the filler have an interlayer spacing d002 at a (002) plane, and the interlayer spacing d002 is at or between 0.335 nm and 1 nm when its X-ray diffraction is measured using a CuK? ray.

Abstract: A positive electrode for a rechargeable lithium battery capable of providing a high voltage and a high voltage rechargeable lithium battery including the same, wherein the positive electrode includes a positive active material and a capacitor-reactive carbonaceous material having a specific surface area at or between 10 m2/g and 100 m2/g.

Abstract: A crystalline carbon material with controlled interlayer spacing and a method of manufacturing the crystalline carbon material are disclosed. The crystalline carbon material has peaks of a (002) plane at 2?=23°±5.0° and 2?=26.5°±1.0° when X-ray diffraction is measured using a CuK? ray. The peak height at 2?=23°±5.0° is higher than the one at 2?=26.5°±1.0°.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material and an activated carbon, a negative electrode including a negative active material, and a lithium salt and a non-aqueous organic solvent, wherein the non-aqueous organic solvent includes about 30 volume % to about 90 volume % of propylene carbonate.