The present invention relates to integrated thin film solar cells, and more particularly, to integrated thin film solar cells, which minimize the loss of integrated solar cells caused at the time of a manufacturing process and become available at a low cost process, and a method of manufacturing thereof, a processing method of a transparent…
US 8076045 Solid oxide fuel cell
The present invention relates to a solid oxide fuel cell in which an anode is formed with a hollow portion, and the hollow portion may be used as a gas diffusion path, thereby improving gas diffusion performance, and the hollow portion may be also used as a reinforcement hole for reinforcing a strength or a current collecting hole for increasing a…
US 7988750 Method for recovering methane gas from natural gas hydrate
The present invention relates to a method for recovering methane gas by adding a gas mixture containing N2 and CO2 gases to natural gas hydrate and reacting them. The method for recovering methane gas from natural gas hydrate of the present invention comprises the step of replacing CH4 gas in natural gas hydrate with a gas mixture containing N2…
US 7901916 Method for producing hydrogen from organic wastes
The present invention relates to a method for producing hydrogen by batch process capable of replacing the existing complex continuous organic waste treatment system by using pretreated organic waste not only as a substrate but also an inoculum. According to the present invention, the existing complex continuous process can be changed into a…
US App 20120280828 RFID-Based electricity metering system
Embodiments of the present invention provide a radio frequency identification (RFID) based electricity metering system enabled to meter energy consumption of individual devices. Specifically, embodiments of this invention provide a set (a least one) of RFID sensor units, each RFID sensor unit comprising: an inductor affixed to the power line of an…
A method for manufacturing lithium-manganese oxide powders for use in a lithium secondary battery is provided. The method includes the steps of dissolving in nitric acid a composition selected from the group consisting of: manganese oxide, manganese carbonate, or manganese to form a manganese solution, and then dissolving in the manganese solution…
US 6106768 Mm-Ni type hydrogen storage alloy for Ni/MH secondary cell
There are disclosed Mm/Ni type hydrogen storage alloys for Ni/MH secondary cells. The alloys which allow the cells to be of high performance and high capacity can be prepared at lower costs than the production costs of conventional Co-rich hydrogen storage alloys, by reducing the amount of the Co element. The Co element is partially or wholly…
US 6086820 Method for producing electrodes for Ni/metal hydride alloy secondary cells
A method for producing an electrode of Ni/metal hydride alloy secondary cells. The electrode may be produced by mixing an active material with approximately 10-50 wt % of Cu powders, which can serve as a binder as well as a current collector, and cold-pressing the mixture at a pressure of 10 ton/cm. As the Cu-compacted electrode continues to…
US 6187476 Method for Making Electrode of Lithium Secondary Cells
A method for making an electrode for lithium secondary cells. Lithium and cobalt ions are co-precipitated in an alkaline solution in such a way that the ratio of the former to the latter is 1.05:1 or more and then, are thermally treated to give LiCoO.sub.2 powder. This ternary system compound is combined with a current collector and a binder. The…
US 6936380 Process for Preparing Lithium Polymer Secondary Battery
The present invention relates to a novel process for preparing a lithium polymer secondary battery which comprises a step of direct coating of a plasticized and crosslinked polymer electrolyte onto a lithium electrode. The process for preparing a lithium polymer secondary battery comprises the steps of: (i) dissolving a mixture of a crosslinking…
US 6902839 Polymer Electrolyte Membrane for Fuel Cell and Method for producing the same
Disclosed is a polymer electrolyte membrane for a fuel cell, which restrains a crossover phenomenon of fuel and a decomposition of a polymer membrane over platinum, and shows outstanding power output and performance characteristics during operation of the fuel cell, and a method for producing the same.
US 7785749 Manufacturing Method of Anode for Solid Oxide Fuel Cell
The present invention relates to a manufacturing method of an anode for a solid oxide fuel cell (SOFC), an anode, and a SOFC, in which an anode is formed by stacking sheets having a plurality of holes, and the holes are used as gas diffusion paths through which fuel gas can be facilely diffused, and some of the holes are filled with a…
A method for manufacturing LiMn2O4 powders for use in a lithium secondary battery positive electrode, is provided, in which oxide or carbonate is used as a positive electrode material, a solution is dried at a temperature higher than 150 C., and the resulting matter is put into a reaction furnace in order to be calcinated for a short time, after…
US 6197570 Norcardia sp. CKYS2 (KCTC 0432BP) capable of desulfurizing fossil fuel
The present invention relates to Nocardia sp. CYKS2 (KCTC 0432 Br) capable of selective removal of organically bound sulfurs from carbonaceous fossil fuel such as petroleum and coal by cleaving bonds between carbon and sulfur atoms in the said sulfur-containing organic compounds, and a method for biological desulfurization using this strain at the…
US 8101141 Unified fuel processing reactor for solid oxide fuel cell
A unified fuel processing reactor for a solid oxide fuel cell can reform hydrocarbon-based fuel into hydrogen-rich gas, remove a sulfur component, and convert non-converted fuel and a low carbon (C2˜C5) hydrocarbon compound into hydrogen and methane in a single reactor. The reactor comprises a primary-reformer which reforms a hydrocarbon-base…
The present invention relates to the structure of a bipolar plate for direction methanol fuel cell, the shape of a flow path and a fuel cell including them, more particularly, to the structure of a bipolar plate for direct methanol fuel cell using a flow path with a dispersion structure not the existing serpentine type for supplying a fuel to the…
Disclosed are a novel hydrogen storage material with enhanced hydrogen storage capacity prepared by doping an organic framework material with light metal cations, and a method of using the same for hydrogen storage. The present inventive material has at least one phenyl group at each face of a triangular building unit, which is doped with metal…
A solvent-free polymer electrolyte and a secondary battery employing the electrolyte are provided. The electrolyte includes: a porous film, including a first polymer and a second oligomer, the first polymer being at least one selected from the group consisting of poly (vinylidene fluoride-co-hexafluoropropylene) copolymers,…
US 6294135 Small-scale Boiler System Using Scrapped Tires
A small-scale scrapped tire boiler system for heating a small-scale facility using heat generated by burning scrapped tires. The system includes a scrapped tire burner furnace, a heat exchanger for heating a cool heat transfer medium from the facility by the combustion gas from the furnace and supplying the heated medium to the facility, and an…
Disclosed is black phosphorus or black phosphorus-carbon composite, which is very suitable for an anode material of lithium rechargeable battery. The black phosphorus or black phosphorus-carbon composite is prepared by using high energy ball-milling, which is easy and efficient way in transforming amorphous red phosphorus into orthorhombic black…
The present invention relates to a method for producing ethanol from xylose using recombinant Saccharomyces cerevisiae resulting in an improved production yield and productivity.
Disclosed is a method for producing ethanol at a high yield and high production efficiency from xylose using recombinant Saccharomyces cerevisiae.
Preparation of thin film of low molecular-weight (MW) substance with bulk hetero-junction (BHJ) using alternate thermal deposition, comprising: providing first and second low MW substances into separate crucibles; and heating the crucibles while rotating substrate under vacuum to deposit alternately.
US App 20130213470 Solar Cell and Manufacuring Method thereof
Solar cell comprising: carbon structure layer; micro-structures on the carbon structure layer; and isolation layer for electrical charge comprising isolation-junction portion for electrical charge formed on a surface of the micro-structures.
US App 20130213463 Solar Cell and Manufacturing Method thereof
Solar cell comprising: carbon structure layer; micro-structures on the carbon structure layer; and thin film comprising isolation-junction portion for electrical charge covering the micro-structures.
Organic/inorganic star-shaped composite polymer with improved mobility of polymer chain due to higher density of polymer chain in outer part than in inner part…
PCT KR2010-005725 Preparation Method of metal oxide-carbon Nanocomposite
Preparation of metal oxide-carbon nanocomposite, comprising: heating mixture of nanoparticles and carbon precursors under reduced pressure to form organic coating layer; and heating to form metal oxide nanoparticles encompassed by a carbon substrate.
US 8847736 Imaging-based radio-frequency identification transponder
The present invention relates to an imaging-based radio-frequency identification (RFID) transponder. Specifically, the transponder includes a photo-responsive cell for capturing an image; and an analysis component. The photo-responsive cell captures images of objects. Once captured, the analysis component is configured to: determine whether the…
US 8810373 Active energy harvesting for radio-frequency identification devices
In general, embodiments of the present invention provide approaches for providing power to RFID transponders. In one embodiment, the RFID transponder is powered using a magnetic field generated by power lines. In another embodiment, the RFID transponder is powered using a field generated by a wireless network. In the case of the latter, the RFID…
US 8952790 Strong passive ad-hoc radio-frequency identification
Embodiments of the present invention provide a strong passive ad-hoc radio-frequency identification (RFID) network (the “network). The network typically includes an RFID receiver and N quantity of RFID tags coupled to one another. For example, a network under the present invention can include an RFID reader; a first RFID tag in communication…