Abstract: A lithium secondary battery with improved lifetime characteristics, a driving method thereof, a battery module including the same, and a battery pack including the battery module, provides the lithium secondary battery having an operating voltage that is less than a plateau voltage of the lithium/nickel composite oxide, and thus has an advantage of being enable to prevent the lithium/nickel composite oxide from being transferred to a spinel-like structure, suppress the capacity degradation according to an increase in cycle, and improve a lifetime characteristic.

Abstract: A secondary battery includes a separator in an electrode assembly thereof that has a sealing part for individually sealing a positive electrode and a negative electrode and has a double sealing structure. The double sealing structure including a first sealing part and a second sealing part so that an accommodation part for accommodating a fire extinguishing agent is provided at an end part of the negative electrode. Further, the secondary battery includes a flame propagation prevention part disposed on an outer surface of the electrode assembly so that a flame generated during thermal runaway of the secondary battery can be blocked in a stage in which the electrode assembly is positioned inside the battery cell, and thus a longer flame propagation time can be induced.

Abstract: A method for predicting a lifespan of a battery cell of the present invention includes: virtually dividing a capacity of a battery cell, which is a measurement object for lifespan prediction, into two or more capacity parts, and measuring charge and discharge cycle data for each of the capacity parts; correcting the charge and discharge cycle data by reflecting storage degeneration a positive electrode active material; and predicting a lifespan of the battery cell, based on the corrected charge and discharge cycle data.

Abstract: A terminal for connecting electric wires and a connector using the same provide a terminal which includes a main body part having a band shape, a first connection part, and a second connection part and in which the first and second connection parts are curved at a right angle to each other so that electric wires are connected in the state in which the electric wires are intersected and arranged at a right angle to each other. Accordingly, a flow of a current can be branched through a simple terminal structure. As a result, a current can be supplied to various supply places through the minimum part.

Abstract: An apparatus for analyzing a frequency use status may obtain a candidate radio network temporary identifier (RNTI) using downlink control information (DCI), estimate an active RNTI from the candidate RNTI, and analyze a frequency use status using the active RNTI.

Abstract: The present disclosure relates to a method for manufacturing an electrode for a secondary battery, including the steps of: (i) preparing a first electrode mixture for primary coating and a second electrode mixture for secondary coating; (ii) coating the first electrode mixture onto an electrode current collector and carrying out drying; and (iii) coating the second electrode mixture onto the first electrode mixture and carrying out drying in such a manner that the drying rate of the second electrode mixture is lower than the drying rate of the first electrode mixture in step (ii).

Abstract: The present disclosure provides a method for manufacturing an electrode having hollow carbon nanoparticles by mixing an electrode active material, a conductive material, a binder to produce a conventional electrode slurry, mixing with selenium-carbon particles, coating an electrode slurry, vaporizing selenium nanoparticles when drying in order to decrease the amount of conductive material in an electrode having long sustainability.

Abstract: Methods for preparing an electrode for a secondary battery are provided herein. In some embodiments, the method includes coating a current collector with an electrode slurry to form a coating layer on the current collector, the electrode slurry including a binder, an electrode active material, a conductive material, and amorphous selenium nanoparticles, and a solvent; and drying the coating layer, wherein the drying vaporizes the amorphous selenium nanoparticles and forms a passageway in the coating layer.

Abstract: An apparatus for analyzing a frequency use status may obtain a candidate radio network temporary identifier (RNTI) using downlink control information (DCI), estimate an active RNTI from the candidate RNTI, and analyze a frequency use status using the active RNTI.

Abstract: Methods for preparing an electrode for a secondary battery are provided herein. In some embodiments, the method includes coating a current collector with an electrode slurry to form a coating layer on the current collector, the electrode slurry including a binder, an electrode active material, a conductive material, and amorphous selenium nanoparticles, and a solvent; and drying the coating layer, wherein the drying vaporizes the amorphous selenium nanoparticles and forms a passageway in the coating layer.

Abstract: The present invention relates to boiled pork which has improved flavor and taste as a result of keeping the unique savory taste of fat and preventing the loss of meat juice while effectively removing animal fat during preparation thereof, and to a standardized preparation method capable of preparing the boiled pork with uniform quality, and more particularly to boiled pork having on its surface a film formed by frying in oil and a method for preparing the same.

Abstract: The present disclosure provides a method for manufacturing an electrode having hollow carbon nanoparticles by mixing an electrode active material, a conductive material, a binder to produce a conventional electrode slurry, mixing with selenium-carbon particles, coating an electrode slurry, vaporizing selenium nanoparticles when drying in order to decrease the amount of conductive material in an electrode having long sustainability.

Abstract: Provided is a terminal for an electric wire connector including: a central erection piece configured to have cutting portions inclined downward and outward on both sides of its upper portion; a pair of outer erection pieces configured to be spaced apart at a desired interval on both sides of the central erection piece and have cutting portions that are inclined downward on the upper portion; a connector configured to connect the central erection piece and lower portions of the pair of outer erection pieces; an electrical wire entry portion configured to be a space through which the cutting portions face each other and be a path under which the electrical wire enters; and a core wire connector configured to be arranged on the lower portion communicating with the electric wire entry portion and be a space to connect the central erection piece and the outer erection piece.

Abstract: Embodiments of the present invention relate to drilling oil, and to a method of preparing the drilling oil, including converting C16 and/or C18 fatty acids derived from fat of biological origin into C15 and/or C17 olefins through decarbonylation.

Abstract: The present disclosure relates to a method for manufacturing an electrode for a secondary battery, including the steps of: (i) preparing a first electrode mixture for primary coating and a second electrode mixture for secondary coating; (ii) coating the first electrode mixture onto an electrode current collector and carrying out drying; and (iii) coating the second electrode mixture onto the first electrode mixture and carrying out drying in such a manner that the drying rate of the second electrode mixture is lower than the drying rate of the first electrode mixture in step (ii).

Abstract: Provided is a terminal for an electric wire connector including: a central erection piece configured to have cutting portions inclined downward and outward on both sides of its upper portion; a pair of outer erection pieces configured to be spaced apart at a desired interval on both sides of the central erection piece and have cutting portions that are inclined downward on the upper portion; a connector configured to connect the central erection piece and lower portions of the pair of outer erection pieces; an electrical wire entry portion configured to be a space through which the cutting portions face each other and be a path under which the electrical wire enters; and a core wire connector configured to be arranged on the lower portion communicating with the electric wire entry portion and be a space to connect the central erection piece and the outer erection piece.

Abstract: Embodiments of the present invention relate to drilling oil, and to a method of preparing the drilling oil, including converting C16 and/or C18 fatty acids derived from fat of biological origin into C15 and/or C17 olefins through decarbonylation.

Abstract: Disclosed is a method for producing a quality lubricant base oil (meeting the standard of Group III or higher) comprising: decarbonylating mixed fatty acids derived from oils and fats of biological origin to produce mixed olefins; oligomerizing the mixed olefins to produce an olefinic lubricant base oil; and performing hydrogenation to remove olefins from the olefinic lubricant base oil.

Abstract: Disclosed herein are an apparatus and method for measuring a broadband Passive Intermodulation Distortion (PIMD) signal. The apparatus for measuring a broadband PIMD signal includes a Radio Frequency (RF) processing unit for combining one or more transmission signals into a single output signal and transmitting the output signal to a feeder so as to measure a PIMD signal and for generating a beat frequency signal using the PIMD signal received from the feeder, and a digital processing unit for transferring a control signal required so as to control the RF processing unit, receiving the beat frequency signal, and then measuring a location of a passive element in the feeder in which the PIMD signal has been generated by performing digital signal processing on the beat frequency signal.

Abstract: Embodiments of the present invention relate to drilling oil, and to a method of preparing the drilling oil, including converting C16 and/or C18 fatty acids derived from fat of biological origin into C15 and/or C17 olefins through decarbonylation.