Patent application number | Description | Published |
20080198944 | POWER TRANSMISSION APPARATUS IN WIRELESS COMMUNICATION SYSTEMS - An envelope elimination and restoration power transmission apparatus in a wireless communication system is provided. The apparatus comprises a signal processor for dividing a transmission signal into a size component and a phase component and for generating a control signal for controlling a current of a bias modulator according to the size component, the bias modulator for amplifying the size component according to the control signal supplied from the signal processor, for lowering an impedance characteristic of the amplified size component and for outputting the amplified size component, a frequency modulator for modulating the phase component into a radio frequency (RF) signal, and a power amplifier for amplifying the RF signal by using an output signal of the bias modulator as a bias voltage. As provided, the transmission apparatus reduces a memory effect due to an impedance difference in a modulation frequency band. | 08-21-2008 |
20080226977 | Electrolyte for lithium ion rechargeable battery and lithium ion rechargeable battery including the same - An electrolyte for the lithium rechargeable battery includes a non-aqueous organic solvent, lithium salts, vinylethylene carbonate and fluoroethylene carbonate. With this electrolyte, the ba0ttery life can be improved, and the storing property at a high temperature can be improved because the increasing rate of the battery thickness according to the increased internal pressure in the battery due to the gas generation is reduced when being kept at the high temperature, and the discharging property at a low temperature is improved because the discharge capacity can be increased when discharging at the low temperature. | 09-18-2008 |
20110081582 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery including: a positive electrode including a nickel-based positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, a first fluoroethylene carbonate additive, a second vinylethylene carbonate additive, and a third alkane sultone additive, wherein when the battery is thicker than about 5 mm, a mixing weight ratio of the first fluoroethylene carbonate additive to the second vinylethylene carbonate additive ranges from about 5:1 to about 10:1, or when the battery is thinner than about 5 mm, the mixing weight ratio of the first fluoroethylene carbonate additive to the second vinylethylene carbonate additive ranges from about 1:1 to about 4:1. | 04-07-2011 |
20110101924 | ELECTROLYTIC SOLUTION FOR LITHIUM BATTERY, LITHIUM BATTERY COMPRISING THE SAME AND METHOD OF OPERATING THE LITHIUM BATTERY - An electrolytic solution for a lithium battery including a positive electrode having a nickel-cobalt-manganese based active material, the electrolytic solution including a nonaqueous organic solvent and a lithium salt, the nonaqueous organic solvent including ethylene carbonate and dimethyl carbonate, a lithium battery including the electrolytic solution, and a method of operating the lithium battery. | 05-05-2011 |
20110117428 | LITHIUM BATTERY AND METHOD OF MANUFACTURING THE SAME - A lithium battery including a negative electrode containing a negative active material into which lithium ions intercalate at an electrical potential equal to or greater than 1.2 V with respect to a potential of Li, and a method of manufacturing the lithium battery. According to one or more embodiments of the present invention, a lithium battery includes: a positive electrode; a negative electrode including a negative active material into which lithium ions intercalate at an electrical potential equal to or greater than 1.2 V with respect to a potential of Li; an electrolyte including a nonaqueous organic solvent and a lithium salt; and a first layer formed on at least one portion of the surface of the negative electrode by chemical reactions involving a first compound represented by Formula 1, elements contained in the electrolyte, and the negative active material. | 05-19-2011 |
20110123870 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - An electrolyte for a rechargeable lithium battery, including a lithium salt, an organic solvent, lithium bis(oxalato)borate (LiBOB), and at least one kind of tris(trialkylsilyl)borate represented by following Chemical Formula 1. | 05-26-2011 |
20110262815 | LITHIUM POLYMER BATTERY - A lithium polymer battery includes a polymer electrolyte or a gel polymer electrolyte having a nonaqueous organic solvent, a lithium salt, an ion-conducting polymer and a fluorinated benzene; a positive electrode; and a negative electrode. | 10-27-2011 |
20110300452 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY INCLUDING ADDITIVES, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - An electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an electrolyte additive including a compound represented by the following Chemical Formula 1, and a rechargeable lithium battery including the electrolyte for a rechargeable lithium battery. | 12-08-2011 |
20110311866 | LITHIUM BATTERY AND METHOD OF MANUFACTURING THE SAME - Embodiments of the invention are directed to lithium batteries including negative electrodes containing lithium titanate negative active materials, and methods of manufacturing the lithium batteries. | 12-22-2011 |
20110318645 | GEL ELECTROLYTE INCLUDING ADDITIVES FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A gel electrolyte for a rechargeable lithium battery includes a gel polymer including a repeating unit derived from a first monomer represented by A-L-E, a non-aqueous organic solvent, a lithium salt, and an additive. A rechargeable lithium battery includes the gel electrolyte. The additive includes a compound selected from compounds represented by | 12-29-2011 |
20120226134 | SYSTEM AND METHOD FOR CONTROLLING THERAPY MACHINE - A system for controlling a therapy machine is a method for controlling a therapy machine for irradiating radiation onto a patient whose body has been stabilized. The method acquires a video signal constituted by a plurality of pixels including information on the posture of the patient; converts the video signal to digital format, and generates video data including information on characteristic values of each of the plurality of pixels; and calculates, on the basis of the information, the number of pixels from among the plurality of pixels of which the characteristic values lie outside a predetermined range. Then, the therapy machine is controlled based on the calculated number. Thus, medical accidents due to inattention during observation by therapists may be prevented, and the accuracy of therapy through the therapy machine may be improved. | 09-06-2012 |
20140205915 | ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are provided. The electrolyte includes a non-aqueous organic solvent, lithium salt, and an additive that is either a dicarboxylic acid anhydride and a halogenated ethylene carbonate or a diglycolic acid anhydride and a halogenated ethylene carbonate. | 07-24-2014 |