Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.

Abstract: A polypropylene composite resin composition and a molded article including the polypropylene composite resin composition are disclosed. In certain examples, the polypropylene composite resin composition includes an improved elongation and impact strength. The polypropylene composite resin composition may include a first polypropylene copolymer having a melt flow index in a range of 30 g/10 min to 150 g/10 min (230° C., 2.16 kg), a second polypropylene copolymer having a melt flow index in a range of 1 g/10 min to 20 g/10 min (230° C., 2.16 kg), an impact modifier having a Mooney viscosity (ML1+4, 125° C.) in a range of 10 to 70, a dye, and an additive in appropriate amounts.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.

Abstract: Provided is a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell having the same, and a method for producing the same. Also described is a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, what is designed is to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.

Abstract: This specification relates to a decoration member including: a substrate; and a decoration layer provided on the substrate in which there are one or more combinations of viewing angles ? and ? in which a contrast parameter Cn represented by Equation 1 is 0.1 or more.

Abstract: A rear impact shock absorbing structure for a fuel cell vehicle. The shock absorbing structure appropriately absorbs shocks in the event of a rear impact, thus preventing hydrogen storage tanks from colliding with a chassis cross member arranged between the hydrogen storage tanks, therefore preventing the hydrogen storage tanks from being broken or damaged. The shock absorbing structure includes a front tank support for supporting a hydrogen storage tank provided in front of a chassis cross member. A rear tank support supports a hydrogen storage tank provided in back of the chassis cross member. Further, a shock absorbing member connects the front and rear tank supports to each other, and is deformed when shocks are applied to the front and rear tank supports.

Abstract: A rear impact shock absorbing structure for a fuel cell vehicle. The shock absorbing structure appropriately absorbs shocks in the event of a rear impact, thus preventing hydrogen storage tanks from colliding with a chassis cross member arranged between the hydrogen storage tanks, therefore preventing the hydrogen storage tanks from being broken or damaged. The shock absorbing structure includes a front tank support for supporting a hydrogen storage tank provided in front of a chassis cross member. A rear tank support supports a hydrogen storage tank provided in back of the chassis cross member. Further, a shock absorbing member connects the front and rear tank supports to each other, and is deformed when shocks are applied to the front and rear tank supports.