Abstract: The present invention relates to an electrolyte containing a polydopamine and a lithium-sulfur battery including the same and, more particularly, to a technique in which polydopamine contained in an electrolyte adsorbs a lithium polysulfide eluted from a positive electrode of a lithium-sulfur battery. When using an electrolyte, according to the present invention, to which polydopamine particles are added, the polydopamine particles dispersed in the electrolyte act to adsorb lithium polysulfide eluted from a positive electrode during the charging and discharging, and thus can suppress the diffusion thereof, i.e., suppress a shuttle reaction, thereby improving the capacity and lifetime characteristics of the lithium-sulfur battery.

Abstract: The present invention relates to a separator for a lithium-sulfur battery having a composite coating layer including polydopamine, and a method for preparing the same, and in particular, to a lithium-sulfur battery suppressing lithium polysulfide elution by using a composite coating layer including polydopamine and a conductive material on one surface of a separator. In the lithium-sulfur battery according to the present invention, a porous structure of polydopamine adsorbs lithium polysulfide eluted from a positive electrode preventing elution and diffusion, and by providing additional electric conductivity, a reaction site of a positive electrode active material is provided, and therefore, battery capacity and life time properties are enhanced.

Abstract: Provided is a porous lithium composite phosphate-based compound containing lithium and having open pores formed in primary particles. As the open pores are formed in the primary particles themselves, a contact area between an electrolyte and the lithium composite phosphate-based compound is maximized, and low conductivity is compensated for, such that a diffusion rate of lithium ions is remarkably increased, and when the lithium composite phosphate-based compound is used as an active material of a secondary battery, the secondary battery may be charged and discharged at a high speed. Additionally, there are advantages in that an electrode density may be significantly increased in addition to the increase in the diffusion rate of the lithium ions, and charge and discharge cycle characteristics may be significantly stable.

Abstract: A pre-driver circuit includes a differential input circuit to receive a differential-input voltage. A latch circuit can latch voltage levels of output-voltage signals at a differential output port of the pre-driver circuit. A pair of capacitors couple the differential input circuit to the latch circuit. The pre-driver circuit can enable peaking of the output-voltage signals for high-speed operation of the pre-driver circuit and a digital-to-analog converter (DAC)-driver circuit coupled to the pre-driver circuit.

Abstract: The present application relates to a lithium electrode and a lithium battery including the same.

Abstract: Provided is a porous lithium composite phosphate-based compound containing lithium and having open pores formed in primary particles. As the open pores are formed in the primary particles themselves, a contact area between an electrolyte and the lithium composite phosphate-based compound is maximized, and low conductivity is compensated for, such that a diffusion rate of lithium ions is remarkably increased, and when the lithium composite phosphate-based compound is used as an active material of a secondary battery, the secondary battery may be charged and discharged at a high speed. Additionally, there are advantages in that an electrode density may be significantly increased in addition to the increase in the diffusion rate of the lithium ions, and charge and discharge cycle characteristics may be significantly stable.

Abstract: A lithium electrode including a porous carbon body; and a lithium metal inserted into pores of the porous carbon body is provided. The lithium electrode may include a lithium ion conductive protective layer formed on at least one surface of the porous carbon body. The lithium electrode can be used as a negative electrode in a lithium secondary battery.

Abstract: The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. More specifically, the cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer including an amphiphilic polymer provided on at least one portion of a surface of the cathode active part and including a hydrophilic portion and a hydrophobic portion.

Abstract: Disclosed are an electrode assembly for sulfur-lithium ion batteries that uses a lithium-containing compound as a cathode active material and a sulfur-containing compound as an anode active material and a sulfur-lithium ion battery including the same.

Abstract: The present specification relates to an anode, a lithium secondary battery including the same, a battery module including the lithium secondary battery, and a method for manufacturing an anode.

Abstract: The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. More specifically, the cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer including an amphiphilic polymer provided on at least one portion of a surface of the cathode active part and including a hydrophilic portion and a hydrophobic portion.

Abstract: The present invention relates to an electrolyte containing a polydopamine and a lithium-sulfur battery including the same and, more particularly, to a technique in which polydopamine contained in an electrolyte adsorbs a lithium polysulfide eluted from a positive electrode of a lithium-sulfur battery. When using an electrolyte, according to the present invention, to which polydopamine particles are added, the polydopamine particles dispersed in the electrolyte act to adsorb lithium polysulfide eluted from a positive electrode during the charging and discharging, and thus can suppress the diffusion thereof, i.e., suppress a shuttle reaction, thereby improving the capacity and lifetime characteristics of the lithium-sulfur battery.

Abstract: Provided is a method for reproducing a situation using a mobile device having an image shooting function. The method may include extracting first keypoints from a live view output to a display of the mobile device, extracting second keypoints from a previously shot image, calculating a tilt of the mobile device at which the first keypoints are mapped to the second keypoints within a critical range, and synthesizing the previously shot image with the live view in a state where the mobile device has been adjusted according to guide information based on a result of the calculating.

Abstract: The present invention relates to a separator for a lithium-sulfur battery having a composite coating layer including polydopamine, and a method for preparing the same, and in particular, to a lithium-sulfur battery suppressing lithium polysulfide elution by using a composite coating layer including polydopamine and a conductive material on one surface of a separator. In the lithium-sulfur battery according to the present invention, a porous structure of polydopamine adsorbs lithium polysulfide eluted from a positive electrode preventing elution and diffusion, and by providing additional electric conductivity, a reaction site of a positive electrode active material is provided, and therefore, battery capacity and life time properties are enhanced.

Abstract: The present invention relates to a cathode active material for a lithium-sulfur battery and a method of preparing the same, and more particularly, to a cathode active material for a lithium-sulfur battery comprising: an amphiphilic polymer comprising hydrophilicity parts and hydrophobicity parts; and a sulfur-carbon composite, and a method of preparing the same. When a lithium-sulfur battery is prepared using the cathode active material, there is an effect which may enhance the electric conductivity in an electrode, cycle characteristics and capacity.

Abstract: A coupling apparatus is provided. The coupling apparatus includes a first coupling part coupled with a first electronic device, a second coupling part coupled with a second electronic device, and a connecting part coupled with the first coupling part and the second coupling part, respectively, to connect the first coupling part and the second coupling part. A distance between the first coupling part and the second coupling part is adjusted depending on a position where at least one of the first coupling part and the second coupling part is coupled with the connecting part. Other embodiments of the present disclosure are possible.

Abstract: Provided is a method for manufacturing a cathode active material for a lithium secondary battery, the method including heat-treating a precursor aqueous solution containing a lithium precursor, a transition metal precursor, and an organic acid containing a carboxyl group, and having a chelation index (C.I) value less than 1 and 0.5 or more, wherein the chelation index value is defined by transmittance of a peak located in a wavenumber from 1,700 to 1,710 cm?1 and transmittance of a peak located in a wavenumber from 1,550 to 1,610 cm?1 in Fourier transform infrared (FTIR) spectroscopy spectrum.

Abstract: The present application relates to a carbon nanotube-sulfur composite including a carbon nanotube aggregate, and a method for preparing the same.

Abstract: The present invention provides a battery management apparatus and method which connect a plurality of batteries having different energy densities to each other and control power supplied through the plurality of batteries to control the driving of the driving body.

Abstract: The present application relates to a separation membrane and a lithium-sulfur battery including the same, and the separation membrane according to the present application prevents elution of lithium polysulfide in a cathode and suppresses growth of a lithium dendrite generated in an anode, and thus has an effect that a life-span and safety of the battery are improved.