Abstract: A method of driving an electronic device includes displaying a plurality of fingerprint recognition icons on a display device configured to perform fingerprint recognition, and releasing a lock state of the display device through a fingerprint authentication process upon determining at least one first fingerprint recognition icon among the plurality of fingerprint recognition icons is touched. The plurality of fingerprint recognition icons include at least one first fingerprint recognition icon configured to support the fingerprint recognition and at least one second fingerprint recognition icon configured to not support the fingerprint recognition.

Abstract: An inverter module according to an embodiment of the present invention comprises: a high voltage circuit unit which generates an inverter control voltage and a motor driving voltage by using a first DC voltage; a high voltage circuit pattern which electrically connects the high voltage circuit unit; a low voltage circuit unit which communicates with an external device by using a second DC voltage having a smaller magnitude than the first DC voltage; and a low voltage circuit pattern which electrically connects the low voltage circuit unit. The high voltage circuit pattern and the low voltage circuit pattern are spaced apart from each other.

Abstract: A transparent display device comprises: a first substrate including a display area and first to fourth bezel areas surrounding the display area, wherein the display area includes a plurality of pixel regions each including an emitting portion and a transparent portion; a second substrate facing the first substrate; a transparent dam between the first and second substrates and in the first to fourth bezel areas; a first pad electrode on the first substrate and in the first bezel area; and a first color filter pattern on the second substrate and in the first bezel area.

Abstract: A positive electrode active material particle includes a core that contains lithium cobalt oxide represented by the following Chemical Formula LiaCo(1-x)MxO2-yAy and a shell that is coated on the surface of the core and contains composite metal oxide of a metal with an oxidation number of +2 and a metal with an oxidation number of +3. In particular, M is at least one selected from the group consisting of Ti, Mg, Zn, Si, Al, Zr, V, Mn, Nb and Ni. A is oxygen-substitutional halogen and 1.00?a?1.05, 0?x?0.05, and 0?y?0.001.

Abstract: The present disclosure relates to a display device and a method of driving the same, and more specifically, to a display device for preventing a user from recognizing a change in luminance when a frame frequency is changed, and a method of driving the same. A display device of the present disclosure includes a display panel including a plurality of pixel regions, a gate driver configured to sequentially supply light emission control signals to horizontal lines of the display panel, a data driver configured to supply a data signal corrected by a source voltage to the display panel, and a dimming controller configured to control whether to gradually change a frame frequency and gamma correction data according to a duty ratio of the light emission control signal.

Abstract: A positive electrode active material includes a lithium transition metal oxide, which is doped with doping element M2, wherein M2 includes at least one of Al, Ti, Mg, Zr, W, Y, Sr, Co, F, Si, Na, Cu, Fe, Ca, S, or B, and contains nickel in an amount of 60 mol % or more based on a total number of moles of transition metals excluding lithium, wherein the lithium transition metal oxide has a single particle form, and includes a center portion having a layered structure and a surface portion having a rock-salt structure, and the doping element M2 is included in an amount of 3,580 ppm to 7,620 ppm based on a total weight of the positive electrode active material.

Abstract: A method for preparing a lithium cobalt-based positive electrode active material and a positive electrode active material prepared by the method are provided. The method includes dry-mixing and then heat treating a lithium cobalt oxide particle represented by Formula 1 and one or more lithium metal oxide particle selected from the group consisting of lithium aluminum oxide, lithium zirconium oxide, and lithium titanium oxide.

Abstract: Disclosed is a secondary battery including a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, wherein the positive electrode includes a positive electrode current collector, and a positive electrode active material layer disposed on the positive electrode current collector, the positive electrode active material layer including a positive electrode active material and a binder. The negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector, the negative electrode active material layer including a negative electrode active material and a binder.

Abstract: A battery management apparatus according to an embodiment of the present disclosure includes: a feature value extracting unit configured to extract a feature value of a learning battery at every charging and discharging cycle; a first state judging unit configured to judge a state of the learning battery at every charging and discharging cycle, based on the feature value extracted by the feature value extracting unit and a criterion value preset to correspond to the feature value; a labelling unit configured to set a label for the feature value of the learning battery at every charging and discharging cycle, based on the state of the learning battery judged by the first state judging unit; a model learning unit configured to learn a classification model for judging a state of an analysis battery based on the feature value for which the label is set by the labelling unit; and a second state judging unit configured to judge the state of the analysis battery based on the classification model learned by the model

Abstract: A positive electrode material including a first positive electrode active material represented by Formula 1 and a second positive electrode active material represented by Formula 2, a positive electrode including the same, and a lithium secondary battery including the positive electrode are provided. The positive electrode material has a bimodal particle size distribution including large diameter particles and small diameter particles, and the difference in average particle diameter (D50) between the large diameter particles and the small diameter particles is 3 ?m or greater.

Abstract: A positive electrode active material includes a lithium transition metal oxide, which is doped with doping element M2, wherein M2 is at least one selected from the group consisting of Al, Ti, Mg, Zr, W, Y, Sr, Co, F, Si, Na, Cu, Fe, Ca, S, and B, and contains nickel in an amount of 60 mol % or more based on a total number of moles of transition metals excluding lithium, wherein the lithium transition metal oxide has a single particle form, and includes a center portion having a layered structure and a surface portion having a rock-salt structure, and the doping element M2 is included in an amount of 3,580 ppm to 7,620 ppm based on a total weight of the positive electrode active material.

Abstract: A negative electrode for a lithium secondary battery which includes a negative electrode active material layer including a first negative electrode active material particles containing first graphite and an amorphous carbon layer on the surface of the first graphite, and a second negative electrode active material particles containing second graphite and having no carbon layer on the surface of the second graphite. The weight ratio of the first negative electrode active material to the second negative electrode active material is 4:6 to 6:4, and the negative electrode active material layer has a BET specific surface area of 1.1 m2/g to 1.7 m2/g, and a lithium secondary battery including the same. The lithium secondary battery including the negative electrode for a lithium secondary battery allows quick charging and has improved high-temperature characteristics and safety.

Abstract: A positive electrode active material precursor is provided, which includes a transition metal hydroxide particle represented by Formula 1 and a cobalt oxide particle and a manganese oxide particle attached to the surface of the transition metal hydroxide particle. A preparation method thereof, a positive electrode active material prepared using the same, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.

Abstract: The present invention relates to an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, wherein an electrode tab protrudes from at least an outer periphery of one side of each of a plurality of positive electrodes and a plurality of negative electrodes, the electrode tabs being coupled to each other in tight contact in a stacking direction to constitute an electrode tab bundle, at least one through-hole is formed through the electrode tab bundle, a connection member made of an electrically conductive material is inserted through the through-hole, and an electrode lead is electrically connected to the electrode tab bundle via the connection member in a melted state, and wherein electrical connection between the electrode tab bundle and the electrode lead is achieved by heating and pressing.

Abstract: A positive electrode active material includes a lithium transition metal oxide, which is doped with doping element M2, wherein M2 includes at least one of Al, Ti, Mg, Zr, W, Y, Sr, Co, F, Si, Na, Cu, Fe, Ca, S, or B, and contains nickel in an amount of 60 mol % or more based on a total number of moles of transition metals excluding lithium, wherein the lithium transition metal oxide has a single particle form, and includes a center portion having a layered structure and a surface portion having a rock-salt structure, and the doping element M2 is included in an amount of 3,580 ppm to 7,620 ppm based on a total weight of the positive electrode active material.

Abstract: The present invention relates to a method for manufacturing a secondary battery. The method for manufacturing the secondary battery comprises: positioning a plurality of unit cells, each unit cell comprising at least one electrode and at least one separator, wherein the plurality of unit cells are positioned on a surface of a separation film to sequentially fold the unit cells and form a folded cell; attaching a pressing tape to an end of the folded cell; accommodating the folded cell and an electrolyte in a battery case; and pressing an outer surface of the battery case to press the folded cell.

Abstract: A positive electrode material for a secondary battery, including a first positive electrode active material and a second positive electrode active material, wherein the first positive electrode active material and the second positive electrode active material consist of a lithium composite transition metal oxide including at least two or more transition metals selected from the group consisting of nickel (Ni), cobalt (Co) and manganese (Mn) are provided. The average particle size (D50) of the first positive electrode active material is two or more times larger than that of the second positive electrode active material, and the first positive electrode active material has a concentration gradient in which at least one of Ni, Co or Mn contained in the lithium composite transition metal oxide has a concentration difference of 1.5 mol % or more between the center and the surface of a particle of the lithium composite transition metal oxide.

Abstract: In manufacturing an electrode assembly, heat treated first separator and electrodes are passed through a pair of surface-patterned rollers under pressurization to prepare a preliminary electrode assembly including the first separator laminated with the electrodes. A second separator on which the preliminary electrode assemblies are disposed is passed through a pair of surface-patterned rollers under pressurization. The second separator is wound to be interposed between the preliminary electrode assemblies. An electrochemical device includes the electrode assembly.

Abstract: The present disclosure relates to a positive electrode material which includes a first positive electrode active material and a second positive electrode active material, wherein the second positive electrode active material has an electrical conductivity of 0.1 ?S/cm to 150 ?S/cm, which is measured after the second positive electrode active material is prepared in the form of a pellet by compressing the second positive electrode active material at a rolling load of 400 kgf to 2,000 kgf, a method of preparing the positive electrode material, and a positive electrode for a lithium secondary battery and a lithium secondary battery which include the positive electrode material.

Abstract: A positive electrode active material, and a positive electrode and a lithium secondary battery including the same are disclosed herein. In some embodiments, a positive electrode active material includes a lithium composite transition metal oxide containing nickel, cobalt, and manganese and having a nickel content for 60 mol % or more, based on metals (M) excluding lithium, and is in the form of single particles having an average particle diameter (D50) of 1 to 10 ?m, wherein a 100-nm region extending from the surface toward the center of a single particle has crystal structures of a Fd3M and a Fm3m space group, and a phase ratio is 0.2 to 0.7, which is a ratio of a first portion of a maximum straight length of the 100-nm region occupied by the crystal structure of the Fd3M space group to a second portion occupied by the crystal structure of the Fm3m space group.