Abstract: In an aspect, a negative active material for a rechargeable lithium battery including surface modified silicon oxide particles is disclosed.

Abstract: A negative active material includes a conductive unit bound in island-like form to silicon-based nanowires on a carbonaceous base. Such negative active material may improve the electrical conductivity of the silicon-based nanowires, and suppress separation of the silicon-based nanowires caused from volume expansion, and thus may improve lifetime characteristics of a lithium battery.

Abstract: An anode active material. The anode active material includes a core including SiOx (0.5?x?1.7), and a coating layer formed on the core at least partially. The coating layer includes metal unreactive toward lithium.

Abstract: A rechargeable lithium battery that includes a negative electrode including a silicon-based negative active material; a positive electrode including a positive active material being capable of intercalating and deintercalating lithium; and a non-aqueous electrolyte, wherein the silicon-based negative active material includes a SiOx (0<x<2) core including Si grains and a continuous or discontinuous coating layer including Ag, the coating layer being disposed on the core.

Abstract: Disclosed is a negative electrode for a rechargeable lithium battery that includes a current collector and a negative active material layer on the current collector, the negative active material layer having an active mass density in a range of about 1.6 g/cc to about 2.1 g/cc and including graphite and a pore-forming agent.

Abstract: A secondary particle and a lithium battery including the same are provided wherein the secondary particle includes a plurality of primary particles and each primary particle contains n polycyclic nano-sheets disposed upon one another. The polycyclic nano-sheets include hexagonal rings of six carbon atoms linked to each other, wherein a first carbon and a second carbon have a distance therebetween of L1. L2 is a distance between a third carbon and a fourth carbon, and the arrangement of the polycyclic nano-sheets is such that L1?L2. The secondary particle is used as a negative active material in the lithium battery, and the secondary particle contains pores, thereby allowing for effective intercalating and deintercalating of the lithium ions into the secondary particle to impart improved capacity and cycle lifespan.

Abstract: In an aspect, a negative electrode active material, a method of preparing the same, and a lithium secondary battery having the negative electrode including the negative electrode active material is provided. The negative electrode active material may include amorphous silicon oxide, crystalline silicon, carbon, metal silicide, spherical particles and whiskers.

Abstract: A secondary battery includes a first electrode assembly configured to include a first positive electrode plate, a first negative electrode plate, and a first separator interposed between the first positive electrode plate and the first negative electrode plate, a second electrode assembly configured to include a second positive electrode plate, a second negative electrode plate, and a second separator interposed between the second positive electrode plate and the second negative electrode plate, the second separator having a porosity greater than that of the first separator, the first electrode assembly having high capacity, as compared with second electrode assembly, and the second electrode assembly having high power, as compared with the first electrode assembly, and a case configured to accommodate the first and second electrode assemblies therein.

Abstract: A negative active material including: a composite including a matrix comprising silicon oxide, silicon carbide, and carbon and silicon particles dispersed in the matrix; and a carbon coating film formed on a surface of the composite, wherein an intensity ratio of a SiC peak to a Si peak in an X-ray diffraction spectrum is 1 or more, a method of preparing the negative active material, a negative electrode including the negative active material, and a lithium battery including the electrode.

Abstract: A spherical primary particle of a lithium titanium oxide of which average diameter is in the range of about 1 to about 20 ?m, a method of preparing the spherical primary particle of the lithium titanium oxide, and a lithium rechargeable battery including the spherical primary particle of the lithium titanium oxide.

Abstract: A negative electrode for a lithium battery and a lithium battery including the negative electrode, the negative electrode including: a matrix of a Sn grain and a metal M grain; and a carbon-based material grown on the matrix.

Abstract: A negative electrode for a lithium ion secondary battery and a lithium ion secondary battery, the negative electrode including a multilayer film, the multilayer film having three or more layers on a metal base, wherein the multilayer film includes one or more porous layers.

Abstract: A negative active material containing super-conductive nanoparticles coated with a high capacity negative material and a lithium battery including the same are provided, wherein the super-conductive nanoparticles have a structure in which polycyclic nano-sheets are stacked upon one another along a direction perpendicular to a first plane. The polycyclic nano-sheets include hexagonal rings of six carbons atoms linked to each other, wherein a first carbon and a second carbon have a distance therebetween of L1. L2 is a distance between a third carbon and a fourth carbon, and the arrangement of the polycyclic nano-sheets is such that L1?L2. The super-conductive nanoparticle is used as a negative active material in a lithium battery, and the super-conductive nanoparticle increases the capacity, thereby improving the capacity and lifespan of the lithium battery.

Abstract: A negative active material includes a conductive unit bound in island-like form to silicon-based nanowires on a carbonaceous base. Such negative active material may improve the electrical conductivity of the silicon-based nanowires, and suppress separation of the silicon-based nanowires caused from volume expansion, and thus may improve lifetime characteristics of a lithium battery.

Abstract: In an aspect, a negative electrode active material, a method of preparing the same, and a lithium secondary battery having the negative electrode including the negative electrode active material is provided. The negative electrode active material may include amorphous silicon oxide, crystalline silicon, carbon, metal silicide, spherical particles and whiskers.

Abstract: In an aspect, a negative active material for a rechargeable lithium battery including surface modified silicon oxide particles is disclosed.

Abstract: A negative active material for a rechargeable lithium battery includes a SiOx (0.5?x?1.5) compound including crystalline Si, and a SiCy, (0.5?y?1.5) compound including crystalline carbon. The negative active material may be used in a rechargeable lithium battery to achieve high capacity and good cycle-life characteristics.

Abstract: An electrode conductive material, an electrode material including the electrode conductive material, an electrode including the electrode material, and a lithium battery including the electrode material. When the electrode conductive material is used, the amount of a conductive material required is decreased, capacity of the lithium battery is improved, and a charge and discharge rate is increased.

Abstract: A negative active material, an electrode including the same, and a lithium battery including the electrode. The negative active material has no volumetric expansion and has high solubility with respect to lithium. In addition, the negative active material is in the form of spherical particles, and thus does not require a separate granulating process. Moreover, the negative active material may enhance the capacity of a lithium battery.

Abstract: A lithium titanium oxide for an anode active material of a lithium rechargeable battery, wherein a X-ray diffraction (XRD) spectrum has a first peak of Li4Ti5O12 and a second peak, and A50-55/A78-80 is in a predetermined range, as a result of XRD analysis, where A78-80 is an Area of the first peak and A50-55 is an Area of the second peak in XRD.