Abstract: An electrode structure includes a positive electrode substrate. A composite layer is disposed on a surface of the positive electrode substrate, with the composite layer including a conductive adhesive layer mixed with an active material. An insulating layer is disposed on opposite side surfaces of the composite layer.

Abstract: An apparatus for manufacturing a secondary battery includes: a coating unit configured to coat a mixture of materials on a substrate of an electrode plate for an electrode assembly of a secondary battery; and a roll-pressing unit configured to roll-press the substrate on which the mixture of materials has been coated. The coating unit is configured to produce a half-coated electrode plate by coating the mixture of materials on only a single surface of the substrate, and the roll-pressing unit is configured to roll-press the half-coated electrode plate by using a first roller facing a coated surface of the half-coated electrode plate and a second roller facing an uncoated surface of the half-coated electrode plate. The first roller and the second roller have at least one different characteristic from each other.

Abstract: A slurry filtering device for a rechargeable battery is provided for removing foreign metal substances contained in a slurry for manufacturing an electrode plate for a battery. The slurry filtering device includes a slurry pipe in which a slurry flow path along which the slurry moves is formed and a collection space where foreign metal substances are collected on an interior wall; a first magnetic filtering unit installed at a position on one side of the collection space of the slurry pipe and filtering foreign metal substances contained in the slurry moving in a direction of the collection space; a second magnetic filtering unit installed on the slurry pipe at the collection space position and collecting foreign metal substances filtered in the first magnetic filtering unit into the collection space by magnetic force; and a sensor unit that checks the amount of foreign metal substances collected in the collection space.

Abstract: A plasma display device including: a plasma display panel adapted to create images and including a front substrate, a rear substrate, a plurality of discharge cells defined between the front substrate and the rear substrate, and phosphors coated in the discharge cells; and a filter attached to a front surface of the front substrate and adapted to serve as an image display surface, wherein the filter and the phosphors are respectively colored with first and second colors that are different from each other.