Abstract: An electrochemical device includes a first electrode layer, a separator coating layer on at least a first surface of the first electrode layer, the separator coating layer including a ceramic material and being patterned, and a second electrode layer facing the separator coating layer that is on the first surface of the first electrode layer.

Abstract: A secondary battery including a first electrode assembly including first and second electrode plates stacked on each other; and a second electrode assembly including third and fourth electrode plates, wherein the second electrode assembly is wound along an outer circumference of the first electrode assembly. The secondary battery having a high energy density and capable of preventing damage of the electrode plates may be provided.

Abstract: Disclosed are a negative active material for a secondary lithium battery and a secondary lithium battery including the same. The negative active material for a secondary lithium battery includes an amorphous silicon-based compound represented by the following Chemical Formula 1. SiAxHy??Chemical Formula 1 In Chemical Formula 1, A is at least one element selected from C, N, or a combination thereof, 0<x, 0<y, and 0.1?x+y?1.5.

Abstract: A photoelectric conversion device including a first substrate; a first electrode on the first substrate and including a grid pattern; a second substrate facing the first substrate; a second electrode on the second substrate; a semiconductor layer on the first substrate at an opening region of the grid pattern; and a conductive thin film on the first substrate between the grid pattern and the semiconductor layer.

Abstract: A photoelectric conversion module includes a first photoelectric cell, a second photoelectric cell, the second photoelectric cell being adjacent to the first photoelectric cell, a first electrode, the first electrode corresponding to the first photoelectric cell, a second electrode, and a connecting member disposed between the first photoelectric cell and the second photoelectric cell, the connecting member electrically connecting the first electrode and the second electrode to each other, the connecting member including a first conductive bump, a second conductive bump, and a conductive connector part contacting the first and second conductive bumps.

Abstract: A piezoelectric element layer is further formed as a package material of a secondary battery, so that the secondary battery can be self-charged using a voltage generated in the piezoelectric element layer according to vibration generated in an electronic device and vibration generated by movement of the electronic device itself. The secondary battery includes a battery case that accommodates an electrode assembly, the battery case having an outer coating layer and a piezoelectric element layer formed on an inner surface of the outer coating layer, and a protection circuit module mounted to an outside of the battery case and electrically connected to the electrode assembly. In the secondary battery, a voltage storage is provided to the protection circuit module, and the piezoelectric element layer converts absorbed vibration into voltage and then stores the voltage in the voltage storage so that the secondary battery is self-charged as occasion demands.

Abstract: An energy storage device formed by a combination of aqueous battery unit cells and non-aqueous battery unit cells is provided. The energy storage device comprises a first energy storage module formed by connecting at least one of aqueous battery unit cells in series and a second energy storage module formed by connecting at least one of lithium ion battery unit cells in series, wherein the first energy storage module and the second energy storage module are connected in parallel, the lithium ion battery unit cell is formed of a cathode active material such as LiFePO4 (LFP) or LiMn2O4 (LMO), and a voltage of the second energy storage module is included within a predetermined margin of error with reference to a voltage of the first energy storage module.

Abstract: An air supply system for a fuel cell and a fuel supply system with the same include a housing having an inlet hole and an outlet hole for respectively allowing inward and outward flow of a fluid; an air pump inserted and installed into the housing and having an inlet tube into which the fluid flows and an outlet tube through which the fluid flows out; a filtering portion installed between the inlet hole and the outlet hole within the housing and filtering particulate contaminants and chemical contaminants in the fluid; and a soundproofing member installed between the outlet tube and the outlet hole within the housing.

Abstract: Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The active material includes a silicon-containing compound represented by the following Chemical Formula 1. SiCx ??[Chemical Formula 1] wherein, 0.05?x?1.5; wherein the compound is substantially amorphous.

Abstract: A fuel cell system that includes a stack includes a plurality of generators for producing electrical energy by an electrochemical reaction of hydrogen and oxygen. The generators are connected in series. In addition, the fuel cell system comprises a fuel supply assembly for supplying fuel comprising hydrogen to the generators, an oxygen supply assembly for supplying oxygen to the generators and at least one branch member that is coupled to at least one of the generators.

Abstract: A photoelectric conversion module including an island type connecting member. A photoelectric conversion module includes: a first substrate and a second substrate, which are disposed to face each other; a sealing member disposed between the first and second substrates, and defining a plurality of photoelectric cells performing photoelectric conversion; and an island type connecting member connecting neighboring photoelectric cells from among the plurality of photoelectric cells.

Abstract: A dye-sensitized solar cell is disclosed. The dye-sensitized solar cell may include a first substrate and a second substrate positioned to face each other and a plurality of unit cells arranged between the first substrate and the second substrate. Each of the unit cells may include first and second conductive transparent electrodes formed on internal surfaces of the first substrate and the second substrate, respectively. The dye-sensitized solar cell may include a first electrode formed on the first conductive transparent electrode and including an oxide semiconductor layer in which a dye is absorbed and a second electrode positioned on the second conductive transparent electrode opposite to the first electrode. The dye-sensitized solar cell may also include an electrolyte disposed between the first electrode and the second electrode. The second electrode may include an opening.

Abstract: Disclosed are a negative active material for a secondary lithium battery and a secondary lithium battery including the same. The negative active material for a secondary lithium battery includes an amorphous silicon-based compound represented by the following Chemical Formula 1. SiAxHy??Chemical Formula 1 In Chemical Formula 1, A is at least one element selected from C, N, or a combination thereof, 0<x, 0<y, and 0.1?x+y?1.5.

Abstract: The electrode for a fuel cell of the present invention includes a catalyst layer and an electrode substrate supporting the catalyst layer, where the electrode substrate includes a hydrophilic region and a hydrophobic region separated from each other. The hydrophilic region and the hydrophobic region that are separated from each other can easily release water produced at the cathode, and thereby prevent clogging of pores of the membrane by water, and smoothly diffuse the reactants resulting in obtaining a high current density.

Abstract: A photoelectric conversion module including a first substrate; a second substrate spaced apart from the first substrate in a first direction; a plurality of photoelectric cells between the first and second substrates, each including an electrolyte; and a sealing member between the first and second substrates, the sealing member surrounding the plurality of photoelectric cells and extending between adjacent photoelectric cells of the plurality of photoelectric cells, wherein the sealing member has at least one electrolyte injecting portion for receiving the electrolyte into the photoelectric cells.

Abstract: A fuel tank and a cap device for the fuel tank. The fuel tank is connected to a fuel cell and includes a tank body having a fuel opening and a pin hole for maintaining an inside pressure, a floater positioned on a surface of the fuel stored in the tank body, and an air pipe connected to the pin hole and an upper part of the floater. The cap device includes a cap body having an inside transfer path for connecting an inlet opening for introducing the fuel and an outside transfer pipe, a fixed outer cap including a connector for fixing a discharge opening into which the transfer pipe is inserted, and an elastic opening/closing section in which the cap body is elastically compressible by the connector, and wherein the inside transfer path opens during the compression.

Abstract: A photoelectric conversion device may effectively prevent an electrolyte from leaking and have a high durability. A photoelectric conversion device includes a first substrate and a second substrate spaced from the first substrate. A plurality of first electrodes are on a side of the first substrate facing the second substrate and extend from a sealing region of the first substrate, and the first electrodes are spaced from each other. A protective layer is on the first electrodes, and an end portion of the protective layer on the sealing region extends continuously across at least two of the first electrodes.

Abstract: An electrode substrate for a photoelectric conversion device includes a current-collecting electrode on a transparent conductive substrate and a coating film coating a surface of the current-collecting electrode substrate, wherein the coating film is formed by coating the surface of the current-collecting electrode with a glass paste composition and baking the current-collecting electrode coated with the glass paste composition, and when a thickness of the coating film is a ?m and a maximal length of a pore in the coating film is b ?m, a condition of b?0.5a is satisfied.

Abstract: According to embodiments of the invention, a glass paste composition for a dye sensitized solar cell includes a glass frit, an organic binder, and an organic solvent.

Abstract: Provided is a dye-sensitized solar cell including a first substrate and a second substrate facing each other; a first electrode unit and a second electrode unit disposed between the first substrate and the second substrate and respectively including at least one or more grid electrodes; an electrolyte filled in the first electrode unit and the second electrode unit; a sealing material for sealing the electrolyte between the first substrate and the second substrate; a collector electrode unit including a first collector electrode and a second collector electrode electrically connected to the first electrode unit and the second electrode unit, respectively; and a protruding terminal unit including a first protruding terminal and a second protruding terminal electrically connected to the first collector electrode and the second collector electrode, respectively.