Abstract: A secondary battery includes: an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a case accommodating the electrode assembly and having an opening; a cap plate coupled to and sealing the opening in the case; a first terminal plate on the cap plate and electrically connected to the first electrode plate; and a first current collector plate between the first terminal plate and the electrode assembly to electrically connect the first terminal plate to the electrode assembly. The first current collector plate has a first protrusion that passes through the cap plate and is connected to the first terminal plate.

Abstract: A light emitting element that includes a first semiconductor layer; a second semiconductor layer disposed on the first semiconductor layer; an active layer disposed between the first semiconductor layer and the second semiconductor layer; a first insulating film at least partially surrounding the first semiconductor layer, the second semiconductor layer, and the active layer; a second insulating film surrounding the first insulating film; and a third insulating film surrounding the second insulating film, wherein a bond dissociation energy of the second insulating film may be less than each of a bond dissociation energy of the first insulating film and a bond dissociation energy of the third insulating film.

Abstract: The present invention relates to a novel compound having inhibitory activity against pendrin, and pharmaceutical uses thereof, and provides a compound represented by formula 1 below, an E- or Z-isomer thereof, an optical isomer thereof, a precursor thereof, a pharmaceutically acceptable salt thereof, a solvate thereof or a mixture of two or more isomers thereof, and a composition for preventing, relieving or treating respiratory diseases and a diuretic composition, each composition utilizing the inhibitory activity of the compound against pendrin.

Abstract: A fuel cell includes an electrolyte membrane-electrode assembly, a durability enhancing layer formed on at least one side of the electrolyte membrane-electrode assembly, and a gas diffusion layer formed on a side of the durability enhancing layer opposite a side on which the electrolyte membrane-electrode assembly is formed, wherein the durability enhancing layer includes a hydrogen peroxide decomposition catalyst and a hydrogen ion conductive polymer and is formed on at least a part of the at least one side of the electrolyte membrane-electrode assembly.