Abstract: Provided is a battery. The battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate, a first current collector plate contacting a bottom surface of the electrode assembly, and electrically connected to the first electrode plate, a second current collector plate contacting a top surface of the electrode assembly, and electrically connected to the second electrode plate, a case for accommodating the electrode assembly, the first current collector plate, and the second current collector plate, and electrically connected to the second current collector plate, and a cap plate for sealing an upper portion of the case, wherein the second current collector plate includes a body part coupled to the second electrode plate, and a wing part fixed to the body part and the case.

Abstract: Embodiments of the present disclosure relate to a cylindrical secondary battery that facilitates gas discharge by causing a bent shape of a cap plate to be deformed and broken if a temperature of a cell increases, such as due to an event. In one or more embodiments, a secondary battery includes: an electrode assembly; a case including a top end open to accommodate the electrode assembly; and a cap plate coupled to the top end of the case, and the cap plate includes a central region, an edge region, a bent portion between the central region and the edge region, and a vent portion including a notch configured to be broken by a certain pressure.

Abstract: A secondary battery includes: an electrode assembly; a can having a lower surface and a side surface and accommodating the electrode assembly; a cap plate coupled to an upper end of the can; a terminal on the lower surface of the can; and an insulator having a plate-shaped portion and an extending portion extending upwardly from a circumference of the plate-shaped portion. The plate-shaped portion is between the electrode assembly and the lower surface of the can, and the extending portion has an upper end contacting a lower portion of the electrode assembly.

Abstract: Provided is a plasticizer composition, comprising: two or more kinds of terephthalates of the same carbon number type, wherein the carbon number of alkyl groups bonded to two ester groups is the same; and one or more kinds of terephthalates of a different carbon number type, wherein the carbon number of alkyl groups bonded to two ester groups is different, the different carbon number type comprises a higher alkyl and a lower alkyl, the higher alkyl is selected from alkyl groups having a carbon number of 8 or less, and the lower alkyl is selected from alkyl groups having a carbon number of 5 or more.

Abstract: A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate, a separator, and a negative electrode plate; a cylindrical can accommodating the electrode assembly and being electrically connected to the negative electrode plate, a lower end of the cylindrical can being open; a rivet terminal passing through an upper surface of the cylindrical can and electrically connected to the positive electrode plate; and a cap plate sealing the lower end of the cylindrical can, the cap plate having no electrical polarity.

Abstract: The present disclosure relates to a plasticizer composition characterized in having alkyl groups derived from an isomer mixture of hexyl alcohol with the degree of branching of less than 2.0 as a cyclohexane triester. When the plasticizer composition is applied to a resin, stress resistance and mechanical properties may be maintained to equal or better levels, migration and loss properties and plasticization efficiency may keep balance, and light resistance and heat resistance may be markedly improved.

Abstract: A secondary battery includes: a can having an accommodation space therein; an electrode assembly accommodated in the accommodation space in the can; and a cap assembly sealed with the can. The can has a beading part recessed into a side wall of the can at a region below where the cap assembly is accommodated, and the beading part has an acute angle with respect to the side wall of the can.

Abstract: A plasticizer composition including a citrate-based material and an epoxidized oil, and the plasticizer composition capable of maintaining an excellent plasticization efficiency and providing an improved mechanical properties and stress resistance when compared with conventional phthalate-based plasticizer products.

Abstract: An embodiment of the present invention relates to a cylindrical secondary battery in which a positive electrode terminal is adhered and fixed to a cylindrical can by an insulating sheet, and thus sealing between the cylindrical can and the positive electrode terminal can be facilitated due to an increased contact area.

Abstract: A plasticizer composition including isophthalate derived from a mixture of hexyl alcohol isomers and di(2-ethylhexyl) terephthalate, and a resin composition comprising the same are provided. The plasticizer composition used in the resin composition provides the same level of or improved plasticization efficiency, migration loss and volatile loss, and improved tensile strength and elongation rate.

Abstract: A plasticizer composition which includes a lower non-hybrid-type cyclohexane triester, a lower hybrid-type cyclohexane triester, a higher hybrid-type cyclohexane triester, and a higher non-hybrid-type cyclohexane triester, wherein the alkyl groups of the cyclohexane triesters are a combination of C3-C6 alkyl groups and C7-C10 alkyl groups. When the plasticizer composition is applied to a resin, stress resistance and mechanical properties are maintained at an equivalent level or improved, migration properties, volatile loss characteristics, and plasticization efficiency are balanced, and light resistance and heat resistance are significantly improved.

Abstract: The present disclosure is characterized in comprising an isophthalate-based composition and a citrate-based composition, wherein the isophthalate-based composition comprises di(2-ethylhexyl) isophthalate, hexyl(2-ethylhexyl) isophthalate and dihexyl isophthalate, the citrate-based composition comprises trihexyl citrate, and the hexyl group of the isophthalate and the hexyl group of the citrate are derived from an isomer mixture of hexyl alcohols. If the composition is applied to a resin, migration resistance and stress resistance may be improved, and on the other hand, mechanical properties may be improved.

Abstract: Provided is a plasticizer composition comprising a cyclohexane polyester-based substance which is a compound of Chemical Formula 1 as a plasticizer: in combination with a perhydride comprising a compound of Chemical Formula 2 having a smaller number of ester groups than the cyclohexane polyester-based substance: Also provided are resin compositions containing the plasticizer composition and methods of preparing the plasticizer composition.

Abstract: The present invention relates to a triester-based plasticizer composition characterized in comprising a product derived from the esterification of a hexanoic acid isomer mixture and a trihydric alcohol, wherein the degree of branching of the hexanoic acid isomer mixture is 2.0 or less. If the plasticizer composition is applied to a resin, migration resistance and volatile loss may be maintained to equal levels, and mechanical properties, absorption rate, stress migration and plasticization efficiency may be markedly improved in contrast to a case applying the conventional plasticizer.

Abstract: The present disclosure is characterized in comprising a terephthalate-based composition and a citrate-based composition, wherein the terephthalate-based composition comprises di(2-ethylhexyl) terephthalate, hexyl(2-ethylhexyl) terephthalate and dihexyl terephthalate, the citrate-based composition comprises trihexyl citrate, and the hexyl group of the terephthalate and the hexyl group of the citrate are derived from an isomer mixture of hexyl alcohols. If the composition is applied to a resin, migration resistance and stress resistance may be improved, and on the other hand, mechanical properties may be improved.

Abstract: The present invention is characterized in including a dihexyl benzene dicarboxylate having an alkyl group derived from an isomer mixture of hexyl alcohol, in the case of applying to a resin, stress resistance and mechanical properties may be maintained to the same or higher levels, and plasticization efficiency may be markedly improved while maintaining the balance among tensile strength, elongation rate and migration resistance.

Abstract: Provided is a plasticizer composition including a cyclohexane-1,2-diester-based material of Formula 1 and a trimellitate-based material of Formula 2: wherein in Formula 1 and Formula 2, R1 to R5 are each independently an alkyl group of 8 to 10 carbon atoms.

Abstract: A plasticizer composition including isophthalate derived from a mixture of hexyl alcohol isomers and di(2-ethylhexyl) isophthalate, and a resin composition comprising the same are provided. The plasticizer composition used in the resin composition provides the same level of or improved plasticization efficiency, migration loss and volatile loss, and improved tensile strength and elongation rate.

Abstract: The present invention relates to a plasticizer composition including a lower alkyl-based citrate and a higher alkyl-based citrate simultaneously as citrates, wherein effects are achieved through controlling the ratio of hybrid and nonhybrid types, and the ratio of lower alkyl and higher alkyl, and if the plasticizer composition is applied in a resin, stress resistance and mechanical properties may be maintained to the equal or better levels, balance between migration and loss properties, and plasticization efficiency may be achieved, and light resistance and heat resistance may be markedly improved.

Abstract: A secondary battery includes: a cylindrical case; an electrode assembly accommodated in the cylindrical case and including a positive electrode and a negative electrode; and a cap assembly sealing the cylindrical case. The cap assembly includes: a cap-up electrically connected to the positive electrode; a terminal plate coupled to an upper portion of the cap-up and electrically connected to the negative electrode; and a first insulating gasket between the cap-up and the terminal plate.