Patent application number | Description | Published |
20090199898 | SOLAR CELL AND METHOD OF TEXTURING SOLAR CELL - A solar cell and a method of texturing a solar cell are disclosed. The method includes coating an ink containing metal particles on a surface of a substrate, drying the ink to attach the metal particles to the surface of the substrate, and differentially etching the surface of the substrate using the metal particles as a catalyst to form an uneven portion. | 08-13-2009 |
20100051099 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method of manufacturing a solar cell includes forming jagged portions non-uniformly on a surface of a substrate, forming a first type semiconductor and a second type semiconductor in the substrate, forming a first electrode to contact the first type semiconductor, and forming a second electrode to contact the second type semiconductor. An etchant used in a wet etching process in manufacturing the solar cell includes about 0.5 wt % to 10 wt % of HF, about 30 wt % to 60 wt % of HNO | 03-04-2010 |
20100108129 | SILICON SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - A silicon solar cell and a method of manufacturing the same are disclosed. The silicon solar cell includes a silicon semiconductor substrate doped with first conductive impurities, an emitter layer doped with second conductive impurities having polarities opposite polarities of the first conductive impurities on the substrate, an anti-reflective layer on an entire surface of the substrate, an upper electrode that passes through the anti-reflective layer and is connected to the emitter layer, and a lower electrode connected to a lower portion of the substrate. The emitter layer includes a first emitter layer heavily doped with the second conductive impurities and a second emitter layer lightly doped with the second conductive impurities. A surface resistance of the second emitter layer is 100 Ohm/sq to 120 Ohm/sq. | 05-06-2010 |
20100319770 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a first conductive type substrate, an emitter layer of a second conductive type opposite the first conductive type, the emitter layer and the substrate forming a p-n junction, a plurality of first electrodes electrically connected to the emitter layer, at least one current collector connected to the plurality of first electrodes, and a second electrode electrically connected to the substrate. Each of the plurality of first electrodes includes a first electrode layer and a second electrode layer on the first electrode layer. The at least one current collector includes a plurality of first current collector layers having a plurality of first portions and at least one second current collector layer on the plurality of first current collector layers. | 12-23-2010 |
20110094567 | SOLAR CELL, METHOD OF MANUFACTURING THE SAME, AND SOLAR CELL MODULE - A solar cell and a solar cell module including the solar cells are disclosed. The solar cell includes a substrate of a first conductive type; an emitter layer of a second conductive type positioned at a light receiving surface of the substrate; a plurality of first electrodes that are positioned on the emitter layer and are electrically connected to the emitter layer; and at least one first current collector that is positioned on the emitter layer in a direction crossing the plurality of first electrodes, wherein a thickness of each of the plurality of first electrodes is different from a thickness of the at least one first current collector, and a difference of the thickness of the each first electrode to the thickness of the at least one current collector is equal to or less than about 0.5 times the thickness of the at least one first current collector. | 04-28-2011 |
20110094586 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are discussed. The solar cell includes a substrate of a first conductive type, an emitter portion that has a second conductive type opposite the first conductive type and forms a p-n junction along with the substrate, a first anti-reflection layer that is positioned on the emitter portion and has a thickness of about 5 nm to 35 nm, a second anti-reflection layer positioned on the first anti-reflection layer, a first electrode electrically connected to the emitter portion, and a second electrode electrically connected to the substrate. | 04-28-2011 |
20110139226 | SELECTIVE EMITTER SOLAR CELL - A selective emitter solar cell is discussed. The selective emitter solar cell includes a substrate of a first conductive type, an emitter layer of a second conductive type positioned on a light receiving surface of the substrate, and a plurality of first electrodes that are positioned on the emitter layer and are electrically connected to the emitter layer. The emitter layer includes a first emitter portion having a first impurity concentration and a second emitter portion having a second impurity concentration higher than the first impurity concentration. The second emitter portion includes a first region that directly contacts at least one of the plurality of first electrodes and overlaps the at least one of the plurality of first electrodes and a second region that is positioned around the first region and does not overlap the at least one of the plurality of first electrodes. A line width of the second region is equal to or less than about eight times a line width of each of the plurality of first electrodes. | 06-16-2011 |
20110146765 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a first conductive type substrate, an emitter layer of a second conductive type opposite the first conductive type, the emitter layer and the substrate forming a p-n junction, a plurality of first electrodes electrically connected to the emitter layer, and a second electrode electrically connected to the substrate. At least one of the plurality of first electrodes includes a first electrode layer, a plurality of first electrode auxiliaries separated from the first electrode layer, and a second electrode layer positioned on an upper surface and a lateral surface of the first electrode layer and on an upper surface and a lateral surface of each of the plurality of first electrode auxiliaries. | 06-23-2011 |
20120055538 | SOLAR CELL MODULE - A solar cell module is discussed. The solar cell module includes a plurality of solar cells each including a substrate and an anti-reflection layer positioned on the substrate, a protective member surrounding the plurality of solar cells, and a transparent member positioned on the protective member. The protective member is formed of a silicon resin. The anti-reflection layer includes a first anti-reflection layer positioned on the substrate and a second anti-reflection layer positioned on the first anti-reflection layer. The first anti-reflection layer and the second anti-reflection layer are formed of different materials. | 03-08-2012 |
20120085398 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a first conductivity type substrate; an emitter unit having a second conductivity type opposite to the first conductivity type, and forming a p-n junction with the substrate; an anti-reflective film positioned on the emitter unit; a plurality of first electrodes positioned on the anti-reflective film and connected with the emitter unit; and a second electrode connected with the substrate, wherein the emitter unit includes a first region and a second region that are positioned between an outermost first electrode among the plurality of first electrodes and the edge of the substrate, and a thickness of the first region gradually increases in going from the edge of the substrate to the outermost first electrode, and a thickness of the second region is uniform. | 04-12-2012 |
20120118372 | SOLAR CELL - A solar cell includes a substrate of a first conductive type, an emitter layer which is positioned at an incident surface of the substrate and has a second conductive type opposite the first conductive type, a front electrode which is positioned on the incident surface of the substrate and is electrically connected to the emitter layer, a back passivation layer which is positioned on a back surface opposite the incident surface of the substrate, has at least one hole, and contains intrinsic silicon, and a back electrode layer positioned on the back passivation layer. The back electrode layer is electrically connected to the substrate through the at least one hole of the back passivation layer and contains a distribution of a silicon material. | 05-17-2012 |
20120152338 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell is discussed. The method may include injecting first impurity ions at a first surface of a substrate by using a first ion implantation method to form a first impurity region, the substrate having a first conductivity type and the first impurity region having a second conductivity type, heating the substrate with the first impurity region to activate the first impurity region to form an emitter region, etching the emitter region from a surface of the emitter region to a predetermined depth to form an emitter part, and forming a first electrode on the emitter part to connect to the emitter part and a second electrode on a second surface of the substrate, which is opposite the first surface of the substrate to connect to the second surface of the substrate. | 06-21-2012 |
20120167977 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a substrate of a first conductive type, an emitter layer which is positioned at one surface of the substrate and has a second conductive type opposite the first conductive type, an anti-reflection layer which is positioned on the emitter layer and has a contact line, and an electrode part positioned on the emitter layer exposed by the contact line. The electrode part includes a seed layer directly contacting the emitter layer. The emitter layer has a first thickness of a formation area of the anti-reflection layer and a second thickness of a formation area of the seed layer. The first thickness is different from the second thickness. | 07-05-2012 |
20120180860 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are disclosed. The method for manufacturing the solar cell includes forming an emitter region of a second conductive type opposite a first conductive type at a first surface of a substrate of the first conductive type by using an ion implantation method, forming a passivation layer on a second surface positioned opposite the first surface of the substrate, and forming a first electrode, which is positioned on the first surface of the substrate and is connected to the emitter region, and a second electrode, which is positioned on the second surface of the substrate and is selectively connected to the substrate through the passivation layer. | 07-19-2012 |
20140116506 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method of manufacturing a solar cell includes forming jagged portions non-uniformly on a surface of a substrate, forming a first type semiconductor and a second type semiconductor in the substrate, forming a first electrode to contact the first type semiconductor, and forming a second electrode to contact the second type semiconductor. An etchant used in a wet etching process in manufacturing the solar cell includes about 0.5 wt % to 10 wt % of HF, about 30 wt % to 60 wt % of HNO | 05-01-2014 |
20140256084 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell is discussed. The method may include injecting first impurity ions at a first surface of a substrate by using a first ion implantation method to form a first impurity region, the substrate having a first conductivity type and the first impurity ions having a second conductivity type, and the first impurity region having the second conductivity type; heating the substrate with the first impurity region to activate the first impurity region to form an emitter region from the first impurity region; etching the emitter region from a surface of the emitter region to a predetermined depth to form an emitter part from the emitter region; and forming a first electrode on the emitter part to connect to the emitter part and a second electrode on a second surface of the substrate to connect to the second surface of the substrate. | 09-11-2014 |
20150179837 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell is discussed. The solar cell includes a semiconductor substrate of a first conductive type, an emitter region of a second conductive type opposite the first conductive type, which is positioned at a front surface of the semiconductor substrate, a front passivation part positioned on a front surface of the emitter region, a front electrode part which passes through the front passivation part and is electrically connected to the emitter region, a back passivation part positioned on a back surface of the semiconductor substrate, and a back electrode part which passes through the back passivation part and is electrically connected to the semiconductor substrate. The front passivation part and the back passivation part each include a silicon oxide layer. One of the front passivation part and the back passivation part includes an aluminum oxide layer. | 06-25-2015 |
20150206473 | IMAGE PROCESSING CONTROLLER, DISPLAY APPARATUS AND DRIVING METHOD THEREOF - An image processing controller of a display apparatus includes: a memory configured to store a plurality of dithering maps; and a dithering unit configured to receive an image signal and a control signal and to output a data signal, where the dithering unit selects a frame set of H frame sets based on the control signal, where H is a positive integer, and each of the H frame set corresponds to the plurality of dithering maps in a predetermined order, and the dithering unit selects dithers the image signal sequentially with reference to the plurality of dithering maps in the selected frame set, and outputs the dithered signal as the data signal. | 07-23-2015 |
20150228843 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell is discussed. The method may include injecting first impurity ions at a first surface of a substrate by using a first ion implantation method to form a first impurity region, the substrate having a first conductivity type and the first impurity ions having a second conductivity type, and the first impurity region having the second conductivity type; heating the substrate with the first impurity region to activate the first impurity region to form an emitter region from the first impurity region; etching the emitter region from a surface of the emitter region to a predetermined depth to form an emitter part from the emitter region; and forming a first electrode on the emitter part to connect to the emitter part and a second electrode on a second surface of the substrate to connect to the second surface of the substrate. | 08-13-2015 |
20150303348 | SELECTIVE EMITTER SOLAR CELL - A manufacturing method of selective emitter solar cell can include, forming an emitter layer positioned on a light receiving surface of the substrate having a first conductive type, the emitter layer having a second conductive type opposite to the first conductive type, forming a first emitter portion having a first impurity concentration and a second emitter portion having a second impurity concentration higher than the first impurity concentration on the emitter layer using a etch stop mask or a mask pattern, and forming a plurality of first electrodes connected to the second emitter portion, wherein the second emitter portion includes a first region that contacts the first electrodes and overlaps the first electrodes and a second region that is positioned around the first region and does not overlap the first electrodes, and the line width of the second region is more than the line width of each first electrode and less than four times the line width of each first electrode. | 10-22-2015 |
Patent application number | Description | Published |
20130014911 | COOLING APPARATUS AND COOLING METHOD FOR POWER-PACK IN HYBRID VEHICLEAANM Lee; JunyongAACI Hwaseong-siAACO KRAAGP Lee; Junyong Hwaseong-si KRAANM Ahn; ChikungAACI Hwaseong-siAACO KRAAGP Ahn; Chikung Hwaseong-si KRAANM Kim; DaekwangAACI Hwaseong-siAACO KRAAGP Kim; Daekwang Hwaseong-si KRAANM Jung; MinyoungAACI Hwaseong-siAACO KRAAGP Jung; Minyoung Hwaseong-si KR - A cooling apparatus for a power-pack in a hybrid vehicle may include a power-pack that acquires traveling information of the vehicle and controls the operation of an engine and a motor, a low-temperature radiator that is connected with power-pack through a cooling water channel, dissipates heat from the cooling water discharged from power-pack, and is arranged in parallel with a radiator, and an electric water pump that is disposed in the cooling water channel and operated in response to an electric signal output from an ECU to circulate the cooling water through power-pack and low-temperature radiator. The cooling apparatus may also include a cooling fan. A cooling method of using the cooling apparatus may include determining engine operation, determining start of a water pump, and operating a water pump. The cooling method may also include starting a cooling fan, operating a cooling and examining a water pump. | 01-17-2013 |
20130024057 | VEHICLE TRAVEL TORQUE CONTROL SYSTEM AND CONTROL METHOD THEREOF - A vehicle travel torque control system may include a sensing module that interworks with an engine control unit (ECU) controlling an engine, a transmission control unit (TCU) controlling a transmission, and a motor control unit (MCU) controlling a motor/an alternator, to collect information associated with each of the units, a motor torque compensating calculation module that determines a variation value of a vehicle speed by comparing an actual vehicle speed of a vehicle with a target vehicle speed determined based on the information collected by the sensing module to determine a torque deviation value of a travel torque and determines a torque correction value by using the determined torque deviation value of the travel torque, and an ECU motor torque outputting module that corrects a target torque amount of the engine by using the torque correction value and outputs a corrected target torque amount to the ECU. | 01-24-2013 |
20130024068 | BATTERY CHARGING SYSTEM FOR VEHICLE AND CONTROL METHOD OF THE SAME - A battery charging system for a vehicle includes a generator, a battery, a DC/DC converter converting the electrical power generated by the generator and supplying the converted electrical power to the electrical device of the vehicle and supplying the electrical power to an electrical device, and charging the battery, an energy storage device storing the electrical power generated from the generator and providing the stored electrical power to the DC/DC converter, and an engine control unit controlling the generator to charge the energy storage device by providing regenerative power generated by the generator in a deceleration driving section of the vehicle, calculating a low-voltage control amount determined to correspond to a state of the battery connected to the DC/DC converter and whether the electrical device of the vehicle operates, and controlling the DC/DC converter to charge the electrical power in the battery based on the calculated low-voltage control amount. | 01-24-2013 |
20130033237 | POWER GENERATION CONTROL SYSTEM FOR VEHICLE - A power generation control system for a vehicle may include a battery supplying power to an electric load, a power generator supplying power to the battery and the electric load, and an electronic control unit (ECU) controlling the power generator in real time, based on driving information inputted from outside, battery information inputted from outside, and an efficiency map of the power generator, which may be predetermined by an efficiency map of an engine and built in the power generator. | 02-07-2013 |
20130054111 | VEHICLE GENERATOR CONTROL SYSTEM AND METHOD FOR SAVING FUEL - A vehicle generation controlling system for saving fuel includes a battery supplying power to electric components of a vehicle, a generator generating power by using rotational force of an engine and supplying the generated power to the battery and the electric components, and an ECU determining whether generation control is prevented by monitoring vehicle information on the vehicle and operational information on an operation of an electric product of a cooling system among the electric components and controlling the generator to prevent the generation control according to the determination. As a result, the generation control is performed based on whether an electric product of a cooling system is actuated and vehicle information on the vehicle to thereby prevent cooling performance from being deteriorated due to the generation control. | 02-28-2013 |
20130057226 | VEHICLE GENERATOR CONTROL SYSTEM AND METHOD FOR SAVING FUEL - A vehicle generating system for saving fuel includes a battery supplying power to electric loads in a vehicle, an electric generator supplying power to the battery and the electric loads, a speed calculation module that calculates operation speed of a wiper in the electric loads, and an ECU including an electric generation control prevention module controlling the electric generator to perform electric generation control prevention when the operation speed calculated by the speed calculation module is compared with a predetermined reference speed and the calculated operation speed is equal to or more than the reference speed, and controlling the electric generator to remove the electric generation control prevention when the operation speed is less than the reference speed. | 03-07-2013 |
20130131899 | APPARATUS AND METHOD FOR MONITORING BELT SLIP IN BELT-TORQUE ASSISTANCE SYSTEM - An apparatus for monitoring belt slip in a belt-torque assistance system includes a motor-alternator slip control unit that determines whether the belt connecting the motor-alternator with the engine in accordance with driving modes of a vehicle slips, and restricts operation of the motor-alternator in accordance with the slip of the belt, an ECU that outputs the operation state of the engine to the motor-alternator slip control unit, an inverter that changes an alternate current generated from the motor-alternator into a direct current or a direct current into an alternate current to drive the motor-alternator, and outputs a signal according to the speed of a rotor and power generation load to the motor-alternator slip control unit, and a motor-alternator operation control unit that operates the motor-alternator to generate power from the driving power transmitted from the engine and to assist torque of the engine. | 05-23-2013 |
20130138323 | ISG SYSTEM AND CONTROL METHOD THEREOF - The ISG (Idle Stop & Go) system may include a vehicle information receiving unit receiving a vehicle information, and a control unit including an ISG operation logic which performs an idle stop when a preset idle stop condition is satisfied and restarts the engine when a preset restart condition of the engine is satisfied, and an ISG deactivation determination logic which determines whether a preset ISG deactivation condition is satisfied or not, based on the accumulated number of determinations that the idle stop condition is not satisfied, the accumulated number of idle stops, and the accumulated number of determinations that a performance time of the idle stop is smaller than a preset idle stop retention time, and deactivates the ISG operation logic when the ISG deactivation condition is satisfied. | 05-30-2013 |
Patent application number | Description | Published |
20080236777 | Method and apparatus for monitoring liquid and solid contents in a froth - A method and apparatus are presented for determining the quantity of liquid and solid content in a removal stream of a froth created from a suspension that is generated during a froth flotation operation. Specifically, electrodes are immersed in the froth generated from a suspension having a known quantity of fiber particles, and the conductance of the froth is measured to establish a relationship between the measured conductance and the quantity of fiber particles. The electrodes are then submerged in a froth generated from a suspension having an unknown quantity of fiber particles, and the froth conductance is measured. The quantity of fiber particles in the froth can then be determined from the pre-established relationship between conductance and solid particle content. | 10-02-2008 |
20080285810 | Method for characterizing the density and cross-section morphology of trees - A method is provided for reliably determining anatomical properties of a tree having a plurality of growth rings spaced from each other in a radial direction. The method involves preparing a sample from a tree to be analyzed, and preparing an image of the sample at a resolution sufficient to analyze at least one of the earlywood and latewood portions of one or more rings. The image is used to determine at least one anatomical property of the sample based on the image, the anatomical property being selected from the group consisting of sample density, tracheid wall thickness, and tracheid exterior dimension. | 11-20-2008 |
20120316330 | METHODS FOR INTEGRATED CONVERSION OF LIGNOCELLULOSIC MATERIAL TO SUGARS OR BIOFUELS AND NANO-CELLULOSE - The present invention relates to systems, compositions and methods for the conversion of lignocellulosic material to recalcitrant cellulose and hydrolyzed sugars and products produced therefrom (e.g., biofuel, nano-fibrillated cellulose). In particular, the invention provides novel fractionation processes configured to integrate production of hydrolyzed sugars (e.g., for biofuel production) and recalcitrant cellulose (e.g., for nano-fibrillated cellulose production) from lignocellulosic material and methods of using the same (e.g., in the production of biofuel and nano-fibrillated cellulose). The invention is also directed to nanocellulose with morphologies of having a less entangled and slightly branched fibril network, and having the same thermal stability as of that of the initial lignocellulose feedstock. | 12-13-2012 |
20130303750 | METHODS FOR INTEGRATING THE PRODUCTION OF CELLULOSE NANOFIBRILS WITH THE PRODUCTION OF CELLULOSE NANOCRYSTALS - Methods for integrating the production of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) from cellulose are provided. The methods use milder acid hydrolysis conditions than those for maximal CNC production to achieve reduced degradation of cellulose into soluble sugars. Also provided are negatively charged cellulosic solid residues (CSRs) in the form of cellulose fibers (CF) and/or cellulose microfibrils (CMF) during the acid hydrolysis, as well as CNFs fabricated from the CSRs. | 11-14-2013 |
20140106407 | REDUCING NON-SPECIFIC ENZYME BINDING TO ENHANCE LIGNOCELLULOSE CONVERSION - A system is provided for reducing non-specific binding of an enzyme to lignin to enhance an enzymatic processing of a lignocellulosic material. The enhancements provide economic and process advantages to any process that converts a lignocellulosic biomass into a product using an enzyme. Systems are provided comprising a reaction vessel; a lignocellulosic feedstock comprising a component selected from the group consisting of a hardwood, a softwood, or a non-wood material; an enzyme component including a cellulase, a hemicellulase, or a combination thereof; and, water. The reaction vessel can contain a combination of the lignocellulosic feedstock, the water, and the enzyme component at a pH ranging from about 5.2 to about 6.2; and, the lignocellulosic feedstock can be saccharified in the reaction vessel. Moreover, the systems can include a lignosulfonate, with or without a pH of about 5.2 to about 6.2, to also reduce non-specific binding and enhance enzymatic activity. | 04-17-2014 |
20150354141 | METHODS OF PRETREATING LIGNOCELLULOSIC BIOMASS WITH REDUCED FORMATION OF FERMENTATION INHIBITORS - Methods of pretreating lignocellulosic biomass in preparation for enzymatic saccharification and fermentation are provided. Also provided are methods of producing ethanol from lignocellulosic biomass via enzymatic saccharification and fermentation that utilize the pretreatment method. In the methods, pretreatment is conducted in two stages. In the first stage, the lignocellulosic biomass is treated in a mildly acidic or near pH-neutral solution to promote delignification and lignin sulfonation, while minimizing the formation of degradation products that inhibit subsequent enzymatic saccharification and/or fermentation. In the second stage, the pH of the solution is decreased in order to promote the depolymerization and dissolution of hemicelluloses in the lignocellulosic biomass. | 12-10-2015 |