Abstract: The present disclosure relates to a battery capable of improving safety by reducing a current path between an electrode plate and a can. Disclosed in an example is a battery including a can having an upper end and a lower end, an upper plate coupled to the upper end of the can, a lower plate coupled to the lower end of the can, an electrode assembly inside the can, and including a first electrode uncoated portion extending upwardly, and a second electrode uncoated portion extending downwardly, a first current collector plate electrically connected to the first electrode uncoated portion, and a second current collector plate electrically connected to the second electrode uncoated portion, and coupled between the lower end of the can and the lower plate.

Abstract: A cylindrical secondary battery which can be sequentially opened at different rupture pressures, by including two vents ruptured by the different rupture pressures, thereby improving safety. The cylindrical secondary battery includes an electrode assembly having a first electrode plate, a separator, and a second electrode plate; a case accommodating the electrode assembly and including an opening at an upper end and electrically connected to the second electrode plate; a terminal penetrating a lower surface of the case and electrically connected to the first electrode plate; and a cap plate sealing an upper end of the case. The cap plate may include: a first vent portion at the center of a central region and has a smaller thickness than other regions; and a second vent portion at an edge region outside the central region and has a smaller thickness than other regions and a larger thickness than the first vent portion.

Abstract: An embodiment of the present specification provides a method for preparing a catalyst for preparing a carbon nanotube, comprising: (a) dissolving a main catalyst precursor, a support precursor, a cocatalyst precursor and a precipitation inhibitor in a solvent to prepare a precursor solution; and (b) pyrolyzing the precursor solution by spraying the precursor solution into a reactor, wherein a mole fraction of the precipitation inhibitor to the cocatalyst precursor is 0.1 to 1.5.

Abstract: A cylindrical secondary battery includes: a cylindrical can; a cap plate coupled to the can, the cap plate having a convex area, a concave area, and an opening; an electrode assembly accommodated in the can and including a first electrode plate and a second electrode plate; and a first terminal exposed to the outside of the cap plate through the opening and having a convex area and a concave area. The convex areas and the concave areas of the cap plate and the first terminal are alternately arranged.

Abstract: A cylindrical secondary battery including: a cylindrical can having an open end in a longitudinal direction thereof; a cap plate coupled to the can and having an opening therein; an electrode assembly accommodated in the can and including a first electrode plate and a second electrode plate; and a first terminal. The first terminal includes: a base block electrically connected to the first electrode plate; a head facing the base block and exposed to the outside through the opening; and a fusible link connecting the base block and the head to each other and having a diameter less than that of the head.

Abstract: An embodiment of the present invention relates to a cylindrical secondary battery comprising: a cylindrical can having one opened end to form an opening; an electrode assembly accommodated in the cylindrical can; and a cap assembly including a vent plate which is disposed on the outermost side in the direction away from the opening and which has at least one notch, a cap down which is disposed to be spaced apart from the vent plate in the direction of the opening and which is electrically connected to the electrode assembly, a support plate which is disposed between the vent plate and the cap down so as to be coupled to the vent plate, and an insulating member which is inserted between the support plate and the cap down to insulate the support plate and the cap down from each other, wherein, when the gas inside the can is discharged toward the opening, the vent plate is ruptured to be separated from the cap assembly.

Abstract: The present invention relates to a secondary battery which can easily vent internal gas, thereby enhancing safety. Disclosed as an example is a secondary battery comprising: an electrode assembly; a case in which the electrode assembly is accommodated; and a cap assembly which is coupled to the top of the case and comprises a cap-up having opening, a safety vent provided under the cap-up and having a notch to be ruptured at a predetermined pressure or higher, and a cap-down provided under the safety vent and electrically connected to the electrode assembly, wherein the notch is exposed through the opening.

Abstract: The present invention relates to a plant regeneration medium composition and a plant regeneration method using same. More specifically, the present invention relates to a plant regeneration medium composition using a medium composition containing Shungite as an active ingredient to increase the rates of shoot organogenesis and root organogenesis, thereby shortening the time required for organogenesis using a plant explant and improving the efficiency of ontogeny, and to a plant regeneration method using same.

Abstract: The present invention relates to a plant regeneration medium composition and a plant regeneration method using same. More specifically, the present invention relates to a plant regeneration medium composition using a medium composition containing Shungite as an active ingredient to increase the rates of shoot organogenesis and root organogenesis, thereby shortening the time required for organogenesis using a plant explant and improving the efficiency of ontogeny, and to a plant regeneration method using same.

Abstract: A secondary battery capable of preventing a deformation is disclosed.

Abstract: A cap assembly and a secondary battery including the cap assembly including a cap-down, and at least a portion thereof is configured to open when pressure is applied to the cap-down, a vent portion, and at least a portion thereof is configured to open when pressure is applied to the vent portion, and a cap-up electrically connected to the vent portion.

Abstract: A voltage regulator includes a voltage converter is configured to generate an output power supply voltage based on an input power supply voltage and an input reference voltage and provide the output power supply voltage to an external functional circuit, the voltage converter including an output terminal configured to output the output power supply voltage; and a sinker connected to the output terminal, the sinker configured to generate a sink current in response to a sink enable signal while the external functional circuit is not driven and configured to block generation of the sink current in response to an operating enable signal while the external functional circuit is driven, wherein the sink current corresponds to a load current that is to be consumed while the external functional circuit is driven.

Abstract: A near field communication (NFC) package in a portable device and method thereof are provided. The NFC package includes a secure storage device configured to store data, and an NFC controller configured to receive data from the secure storage device, provide the received data to a first external terminal by performing an NFC communication in an NFC mode, and provide the received data to a second external terminal by performing a magnetic secure transmission (MST) communication in an MST mode.

Abstract: A voltage regulator includes a voltage converter is configured to generate an output power supply voltage based on an input power supply voltage and an input reference voltage and provide the output power supply voltage to an external functional circuit, the voltage converter including an output terminal configured to output the output power supply voltage; and a sinker connected to the output terminal, the sinker configured to generate a sink current in response to a sink enable signal while the external functional circuit is not driven and configured to block generation of the sink current in response to an operating enable signal while the external functional circuit is driven, wherein the sink current corresponds to a load current that is to be consumed while the external functional circuit is driven.

Abstract: A semiconductor device is provided. The semiconductor device includes a first coil section that receives a first clock signal from a reader, a power generator that is electrically connected to the first coil section in accordance with a switching operation of a switch, a first near-field communication (NFC) chip that is electrically connected to the power generator and receives electric power in accordance with the first clock signal, a second NFC chip that generates a switching operation control signal for controlling the switching operation of the switch, and a second coil section that is electrically connected to the second NFC chip and receives a second clock signal from the reader.

Abstract: A wireless power transceiver includes input generator, inverter, battery, antenna, impedance matching circuit, and mode voltage changer. The input generator outputs an input voltage as a primary input voltage and a secondary input voltage in a power transmitting mode. The input generator outputs a power supply voltage as a primary input voltage and outputs a ground voltage as a secondary input voltage in a power receiving mode. The inverter outputs to the second node, an inverted version of the input voltage in the power transmitting mode, and outputs to the first node, a rectified voltage of the second node in power receiving mode. The impedance matching circuit is connected between the second node and the antenna. The mode voltage changer converts a battery voltage of the battery to output the power supply voltage in the power transmitting mode, and charges the battery with a voltage converted from the power supply voltage in the power receiving mode.

Abstract: A near field communications (NFC) device includes a receiving module and a transmitting module. The receiving module includes a receiver receiving an analog signal that includes a carrier signal and data, an analog-to-digital converter converting the analog signal to a digital signal, and a filter filtering the digital signal. The transmitting module includes a direct current-direct current (DC-DC) converter having an operating frequency belonging to a stop band of the filter, and a transmitter receiving power from the DC-DC converter and receiving a system clock signal.

Abstract: A near field communications (NFC) device includes a receiving module and a transmitting module. The receiving module includes a receiver receiving an analog signal that includes a carrier signal and data, an analog-to-digital converter converting the analog signal to a digital signal, and a filter filtering the digital signal. The transmitting module includes a direct current-direct current (DC-DC) converter having an operating frequency belonging to a stop band of the filter, and a transmitter receiving power from the DC-DC converter and receiving a system clock signal.

Abstract: An integrated circuit for near field communication (NFC) is provided. The integrated circuit includes a semiconductor substrate; a first transmitter disposed on the semiconductor substrate and configured to operate in a first NFC card mode, an NFC reader mode, and a peer-to-peer mode; a second transmitter disposed on the semiconductor substrate and configured to operate in a second NFC card mode; first transmitting pins connected to the semiconductor substrate and configured to transmit an output signal of the first transmitter to a first NFC antenna; second transmitting pins connected to the semiconductor substrate and configured to transmit an output signal of the second transmitter to a second NFC antenna; and a logic circuit disposed on the semiconductor substrate and configured to receive a control signal, and control an operation of the first transmitter and an operation of the second transmitter based on the control signal.

Abstract: An integrated circuit for near field communication (NFC) is provided. The integrated circuit includes a semiconductor substrate; a first transmitter disposed on the semiconductor substrate and configured to operate in a first NFC card mode, an NFC reader mode, and a peer-to-peer mode; a second transmitter disposed on the semiconductor substrate and configured to operate in a second NFC card mode; first transmitting pins connected to the semiconductor substrate and configured to transmit an output signal of the first transmitter to a first NFC antenna; second transmitting pins connected to the semiconductor substrate and configured to transmit an output signal of the second transmitter to a second NFC antenna; and a logic circuit disposed on the semiconductor substrate and configured to receive a control signal, and control an operation of the first transmitter and an operation of the second transmitter based on the control signal.