Samsung Sdi Co., Inc.

Ulsan National Institute of Science and Technology

Da-Un Han

Hyeri Eom

Sol Choi

Seungjae Lee

Juhee Sohn

Jeongdoo Yi

Junwon Suh

Jungyup Yang

Juhyeong Han

Seokhun Hong

Hyunhwa Song

Jandee Kim

Eui-Hwan Song

Kyeu-Yoon Sheem

Jeong-Doo Yi

Wonkyu Bang

Junggyu Nam

Bong-Kyoung Park

Sumihito Ishida

Bok-Hyun Ka

Hyun-Uk Jo

Jaephil Cho

Taesoo Lee

Minjoon Park

Hyungyeon Cha

The present invention relates to a lithium secondary battery comprising: a current collector comprising a structure in a fabric form in which fiber bundles are cross-woven, wherein each of the fiber bundles is formed of sets of fiber yarns and each of the fiber yarns includes a polymer fiber and a metal layer surrounding the polymer fiber; and an electrode including an active material layer disposed on at least one surface of the current collector.

Lithium secondary battery

The present disclosure relates to a rechargeable battery including an electrode assembly that includes a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode, a first electrode tab that is electrically connected with the first electrode, and includes at least one first bent portion, a second electrode tab that is electrically connected with the second electrode, and includes at least one second bent portion, and exterior member that receives the electrode assembly, and a reinforcement member that is disposed in the first exterior member, while being disposed adjacent to at least one of the first electrode tab and the second electrode tab.

Rechargeable battery

The present disclosure relates to an outer case for a flexible rechargeable battery, including a first resin layer configured to include a first patterned area, a moisture barrier layer disposed on the first resin layer to include a second patterned area, a second resin layer disposed on the moisture barrier layer to include a third patterned area, and a stress relaxation layer configured to cover the third patterned area.

Outer case for flexible rechargeable battery and flexible rechargeable battery including same

The present disclosure relates to a stacked electrode assembly and a flexible rechargeable battery including the same, including a first electrode, a second electrode stacked on one surface or both surfaces of the first electrode, and a separator disposed between the first electrode and the second electrode, wherein the separator has a continuous sheet shape, is bent in a first direction to surround the first electrode and in a second direction as an opposite direction to the first direction to surround the second electrode, and a bending end region of the separator includes a plurality of patterns.

Stacked electrode assembly and flexible rechargeable battery comprising the same

The present disclosure relates to a rechargeable battery including a cell assembly including a plurality of unit cells disposed to be separated by a predetermined interval, a casing member receiving the cell assembly, a first connection part connecting the plurality of unit cells, and a second connection part disposed parallel to the first connection part and connecting the plurality of unit cells, wherein each of the plurality of unit cells includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode.

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 &#xb1;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.

Electrode for rechargeable lithium battery, and rechargeable lithium battery including same

An electrode assembly and a rechargeable battery including the same are provided. An electrode assembly for a rechargeable battery includes: a first electrode including a first coating part and a first uncoated region at at least one side of the first coating part; a second electrode including a second coating part and a second uncoated region at at least one side of the second coating part; a separator between the first electrode and the second electrode; and at least one of a first stress buffering part on at least a partial region of the first uncoated region and a second stress buffering part on at least a partial region of the second uncoated region, the at least one of the first stress buffering part and the second stress buffering part being configured as a film including an ethylene propylene copolymer, a hydrogenated hydrocarbon polymer, and polyethylene.

Electrode assembly for flexible rechargeable battery and flexible rechargeable battery including the same

The present invention relates to a band assembly including a first outer connecting portion and a second outer connecting portion disposed to face each other, wherein the first outer connecting portion includes a first fastening hole and the second outer connecting portion includes a third fastening hole, an inner connecting portion disposed between the first outer connecting portion and the second outer connecting portion, wherein the inner connecting portion includes a second fastening hole that corresponds to the first fastening hole and the third fastening hole, and a rechargeable battery inserted into the first fastening hole, the second fastening hole, and the third fastening hole to connect the first outer connecting portion, the inner connecting portion, and the second outer connecting portion.

Band assembly

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.

Flexible rechargeable battery

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.

Pouch-type rechargeable battery

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&#x3b8;=23&#xb0;&#xb1;5.0&#xb0; and 2&#x3b8;=26.5&#xb0;&#xb1;1.0&#xb0; when X-ray diffraction is measured using a CuK&#x3b1; ray. The peak height at 2&#x3b8;=23&#xb0;&#xb1;5.0&#xb0; is higher than the one at 2&#x3b8;=26.5&#xb0;&#xb1;1.0&#xb0;.

Growing community of inventors

Yongin-si, South Korea

Da-Un Han