Abstract: A battery cell includes: an electrode assembly including a first electrode and a second electrode with a separator interposed therebetween, and the first electrode, second electrode and separator are wound around a winding axis, wherein the first electrode includes a first uncoated portion, which is not coated with an active material layer; a battery housing having an opening and that accommodates the electrode assembly through the opening; and a current collector including a support portion, a tab coupling portion, and a housing coupling portion. A fracture portion is provided at a boundary between the support portion and the tab coupling portion.

Abstract: A display device includes a display panel including light emitting elements, a panel support member disposed on a surface of the display panel, and a spacer disposed on a surface of the panel support member, the spacer including a first attachment layer, a support layer disposed on the first attachment layer, an outer peripheral film disposed on the first attachment layer and surrounding the support layer, and a second attachment layer disposed on the support layer and the outer peripheral film.

Abstract: A fuel cell system includes a fuel cell stack and a battery that are connected to a high voltage line in parallel, a converter connected to the high voltage line and the battery while being located therebetween and configured to control a voltage at the high voltage line, and a controller, in a stop control mode of the fuel cell stack, when an error occurs in a drop control of an output voltage of the fuel cell stack, the controller dropping the voltage at the high voltage line under the output voltage of the fuel cell stack by the converter to drop the output voltage of the fuel cell stack.

Abstract: Disclosed are a coating composition for a composite positive electrode active material and a method of preparing a composite positive electrode active material using the same.

Abstract: An X-ray detector may include a silicon substrate including a first area and a second area; a plurality of pixels in the first area configured to detect X-rays; a control pad in the second area configured to supply a common control signal to the plurality of pixels; and/or a power supply pad in the first area configured to supply a power supply voltage to groups of pixels grouped from among the plurality of pixels.

Abstract: An X-ray detector may include a silicon substrate including a first area and a second area; a plurality of pixels in the first area configured to detect X-rays; a control pad in the second area configured to supply a common control signal to the plurality of pixels; and/or a power supply pad in the first area configured to supply a power supply voltage to groups of pixels grouped from among the plurality of pixels.

Abstract: A detector includes a substrate; two first regions, each first region having a linear shape, and the two first regions being separated from each other on the substrate and arranged in parallel; and a pixel region provided between the two first regions and including a plurality of pixels, the pixel region including a plurality of second regions perpendicular to the two first regions, each of the two first regions including a peripheral circuit portion, each of the plurality of second regions including a driver line, and a width of each of the plurality of second regions being equal to or less than a width of a single pixel.

Abstract: A circuit board has an insulative layer including a first surface and a second surface opposite to the first surface. A plurality of electrically conductive patterns is formed on the first surface of the insulative layer. Conductive lands are formed in a die mounting region of the first surface of the insulative layer and electrically connected to one of the plurality of conductive patterns on the first surface. An extending pattern extends from the conductive lands to outside of the mounting region. A protective layer covers the first surface of the insulative layer and the electrically conductive patterns. A trench is formed in the protective layer to expose the conductive lands and the extending patterns.