Abstract: Disclosed is to provide a composition for skin-whitening or preventing or improving skin wrinkles, comprising a green tea extract which has modified amounts of ingredients. More specifically, the extract and composition according to one aspect of the present disclosure are derived from natural plants that cause less irritation to the skin and are eco-friendly, thus they are safe, and thereby the extract and composition can exhibit excellent effects of effectively inhibiting melanin production and tyrosinase activity and preventing or improving skin whitening, and can exhibit excellent effects of effectively inhibiting the expression of MMP-1 and preventing or improving skin wrinkles.

Abstract: An additive for a lithium secondary battery includes a compound represented by Formula 1 below, where R1 to R4 are as defined in the disclosure. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive. A lithium secondary battery includes: a cathode; an anode; and the electrolyte.

Abstract: In a mobile terminal, according to one embodiment of the present invention, for achieving the object as above, a wireless communication unit, a touch screen and a control unit cooperate with each other to perform a message transmission function. The control unit performs the message transmission function through a step of controlling the touch screen to output a message written by a user input; a step of outputting, in the case where the message includes content related to a file attachment, one or more files that can be attached to the message in a selectable link form using the content related to the file attachment; and a step of attaching, if at least one is selected from among the one or more files outputted in a link form, the at least one selected file to the message.