Abstract: A button-type secondary battery includes a lower can having a bottom surface; an upper can having a top, the upper can and the lower can being coupled to define a space therein; an electrolyte in the space; an electrode assembly in the space and including a negative electrode, a separator, and a positive electrode wound together; a gasket between the upper can and the lower can to electrically insulate the upper and lower cans; a top insulator that is electrically insulating and covering a top surface of the electrode assembly; and a bottom insulator that is electrically insulating and covering a bottom surface of the electrode assembly. The top and bottom insulators are each configured to expand in volume by absorbing the electrolyte. Surfaces of at least one of the top insulator and the bottom insulator are coated with a protective layer to prevent thermal shrinkage from occurring.

Abstract: A button type secondary battery includes a wound electrode assembly; a lower can with the electrode assembly and an electrolyte in the lower can; a top plate to close the lower can; a positive electrode terminal coupled to the top plate through a gasket to be electrically insulated from the top plate with a portion of the positive electrode terminal passing through a hole in the top plate to be bonded to a positive electrode tab; a top insulator covering a top surface of the electrode assembly; and a bottom insulator covering a bottom surface of the electrode assembly. The top insulator and the bottom insulator are each configured to expand in volume by absorbing the electrolyte. Surfaces of at least one or more of the top insulator and the bottom insulator are coated with a protective layer configured to prevent thermal shrinkage from occurring.

Abstract: Provided is an overlay mark. The overlay mark comprises a substrate, a lower overlay in the substrate, a pattern layer on the substrate, and an upper overlay defining an opening on the pattern layer. The lower overlay does not overlap the upper overlay in a thickness direction of the substrate.

Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.

Abstract: The present invention relates to a foldable lightweight roll container, and more particularly, to a foldable lightweight roll container which is lightweight, very easy for cleanliness and maintenance while preventing shortening of a lifetime, and may be used to carry goods in various fields such as medicines and foods in addition to various industrial products.

Abstract: The present invention relates to a foldable lightweight roll container, and more particularly, to a foldable lightweight roll container which is lightweight, very easy for cleanliness and maintenance while preventing shortening of a lifetime, and may be used to carry goods in various fields such as medicines and foods in addition to various industrial products.

Abstract: The present invention relates a plant cultivation apparatus using an up-down system enabling mass production of plants by allowing the entire area of a greenhouse to be used as a cultivation space.

Abstract: The present invention relates a plant cultivation apparatus using an up-down system enabling mass production of plants by allowing the entire area of a greenhouse to be used as a cultivation space.

Abstract: The present invention relates to an apparatus for mass cultivation of plants, which enables plants to be cultivated in the entire area of a greenhouse when the plants are cultivated in the greenhouse, thus enabling mass production of plants.

Abstract: The present invention relates to an apparatus for mass cultivation of plants, which enables plants to be cultivated in the entire area of a greenhouse when the plants are cultivated in the greenhouse, thus enabling mass production of plants.