Abstract: An electricity generating apparatus connected to a diffuser for purifying the quality of water in an area generates electricity while being operated by bubbles and the buoyancy of a water stream, generated in the diffuser, and thus supplies the produced electricity to the diffuser, so that the diffuser can purify the quality of water. The apparatus includes: a turbine shaft installed in a vertical direction; a cylindrical turbine including supports, one end connected with the turbine shaft, and an internal fixed plate and an external fixed plate being formed; turbine blades, formed between the internal fixed plate and the external fixed plate; and a generator, connected with a driving gear formed at an upper end of the turbine shaft, for generates electricity when the turbine shaft is rotated.

Abstract: An electric double layer capacitor package includes a package body including a groove region formed by removing a portion from a surface thereof, an electric double layer capacitor disposed in the groove region of the package body, and including first and second electrodes and an ion permeable separator disposed between the first and second electrodes, and first and second conductive vias each disposed in an inner portion of the package body and each having one end connected to one of the first and second electrodes, respectively and the other end extending from the one end toward a bottom surface of the package body in the case that the surface is defined as an upper region of the package body. The electric double layer capacitor package can be surface-mounted without using an additional structure. The use of the electric double layer capacitor package achieves a reduction in thickness and mounting area, thereby contributing to the production of lighter and smaller products.