Abstract: A rechargeable lithium battery includes a metal-containing foam current collector, and an active mass that fills in the metal-containing foam current collector, the active mass including an active material. The electrode includes a central region and a surface region. The central region corresponds to a ±5% upper and lower area with a reference to a central thickness line of the electrode. A volume ratio of the metal and the active material in the central region is different from a volume ratio of the metal and the active material in the surface region.

Abstract: A pouch-type rechargeable battery according to one or more exemplary embodiments includes: an electrode assembly; an exterior material receiving the electrode assembly; and a sealing portion arranged at an edge of the exterior material, and including at least one metal particle and a resin surrounding the at least one metal particle, and an area ratio of the at least one metal particle and the resin in a cross-section of the sealing portion cut along a direction that is perpendicular to a lengthwise direction of the sealing portion is from 1:99 to 6:4.

Abstract: A flexible rechargeable battery includes a first conductive substrate, a second conductive substrate, and a seal. The first conductive substrate includes a first protrusion. The second conductive substrate faces the first conductive substrate and includes a second protrusion. The seal is located along at least one edge of the first conductive substrate and the second conductive substrate, and includes at least one sealing metal layer and at least one sealing resin layer.

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: In some aspects, a composite electrode active material including a core capable of intercalating and deintercalating lithium and a coating layer formed on at least a part of the surface of the core, wherein the coating layer includes a porous carbonaceous material is provided.

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 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 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°.