Abstract: A secondary battery cell includes: a case in which an electrode assembly is accommodated; a cap plate assembly coupled to at least one side of the case; and a venting unit including a base coupled to one surface of the case and a notch portion formed on the base, and the notch portion includes: a first notch portion extending in a first direction; a second notch portion extending in a second direction intersecting the first direction; and a third notch portion extending in a third direction, parallel to a longitudinal direction of the base from both ends of the first notch portion and the second notch portion.

Abstract: A secondary battery cell includes: a case in which an electrode assembly is accommodated; a cap plate assembly coupled to at least one side of the case; and a venting unit including a base coupled to one surface of the case and a notch portion formed on the base, and the notch portion includes: a first notch portion extending in a first direction, parallel to a longitudinal direction of the base; a second notch portion extending in a second direction, perpendicular to the first direction, from both ends of the first notch portion, respectively; and a third notch portion extending in the first direction from both ends of the second notch portion, respectively.

Abstract: Provided is a method for manufacturing a polarizing plate, comprising a step of irradiating an optical laminate with ultraviolet rays having an emission wavelength band of 380 nm to 410 nm. The optical laminate sequentially comprises a first base film, a first adhesive layer, a linear polarizer, a second adhesive layer, a second base film and a reverse dispersion liquid crystal layer. The first adhesive layer and the second adhesive layer each comprise a photosensitizer for initiating a curing reaction in a wavelength band of 350 nm to 410 nm, and the ultraviolet rays are irradiated on the first base film side of the optical laminate.

Abstract: A golf putting training apparatus for allowing for putting stroke practice at a wide variety of angles is provided, which includes: apertures formed at opposite sides of one end of the plate body, where the cup is mounted, and at center of the other end of the plate body; caps fixed into the apertures, which mate with wrench insertion holes in artificial grass; and height adjusters installed in the caps, the height adjusters each including: a fixed tube body; a plurality of spiral tube bodies for height adjustment, which thread onto the fixed tube body; and a pointed earth spiral bar which threads onto a lowermost spiral tube body having a wrench groove therein, the earth spiral bar and the spiral tube bodies for height adjustment having arc-shaped projections on their respective tops, and the projections and the fixed tube body respectively having stoppers therein, by which the projections are stopped.