Abstract: A power swivel device for a vehicle seat is configured to perform both swivel and monopost functions of the vehicle seat. The power swivel device includes a motor configured to swivel the seat and a reduction gear device configured to increase output torque of the motor, which are stacked in a vertical direction on a bottom of the seat. The power swivel device includes a lower housing; an upper housing stacked on and assembled to the lower housing; an eccentric shaft rotatably disposed relative to the lower housing and the upper housing; a motor driving unit mounted between the lower housing and the eccentric shaft; the reduction gear device installed between the upper housing and the eccentric shaft; and a swivel plate rotatably mounted on the reduction gear device and connected to a seat cushion frame.

Abstract: A height adjustment device and a swivel device for a vehicle seat are configured to adjust seat height and swivel the vehicle seat. The height adjustment device includes a first reduction gear device disposed at a bottom of the vehicle seat and configured to increase output torque of a first motor and a lifting device engaged with the first reduction gear device and configured to move the seat upwards or downwards, and the swivel device includes a motor driving unit disposed at a bottom of the height adjustment device and a second reduction gear device configured to increase output torque of the motor driving unit, thereby making it possible not only to selectively perform seat height adjustment and swivel operation, but also to perform a monopost function of the seat in a state in which the height adjustment device and the swivel device are stacked in a vertical direction.

Abstract: A device for height adjustment and swivel of a seat for a vehicle has a structure in which a first motor for height adjustment of the seat, a first reduction gear device for increasing output torque of the first motor, and a lifting device configured to lift or lower the seat by being connected to the first reduction gear device are stacked in a vertical direction, and a second motor for driving of seat swivel, a second reduction gear device for increasing output torque of the second motor, a brake device configured to stop the seat are vertically stacked between a bottom of the seat and the first motor, in order to adjust the height of the seat, enable accurate swiveling, and carry out a monopost function of the seat.

Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.

Abstract: A power swivel apparatus of a seat for a vehicle includes a motor having an eccentric shaft, a reduction gear device connected to the eccentric shaft of the motor, a brake device configured such that braking of the brake device is released by eccentric rotational force of the reduction gear at a time of driving the motor and the brake device exhibits braking force configured to stop the seat at a time of stopping driving of the motor, and a swivel plate connected to the brake device and configured to transmit rotational force so as to swivel the seat.

Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.

Abstract: A positive active material for a rechargeable lithium battery, and a rechargeable lithium battery and a battery module including the same are provided. The positive active material may include a lithium nickel-manganese-cobalt composite oxide with a coating layer on the surface. The coating layer on the surface may include a lithium oxide including Al and/or W, for example, Al and W.

Abstract: A positive active material for a rechargeable lithium battery, and a rechargeable lithium battery and a battery module including the same are provided. The positive active material may include a lithium nickel-manganese-cobalt composite oxide with a coating layer on the surface. The coating layer on the surface may include a lithium oxide including Al and/or W, for example, Al and W.

Abstract: A positive active material for a rechargeable lithium battery is a secondary particle formed of an assembly of primary particles of a nickel-based compound. The positive active material has an average particle diameter ranging from 5.5 ?m to 7.5 ?m and a specific surface area ranging from 0.40 m2/g to 2.0 m2/g. When the positive active material has an average particle diameter ranging from 11 ?m to 13 ?m, the positive active material has a specific surface area ranging from 0.15 m2/g to 1.0 m2/g. A rechargeable lithium battery includes the positive active material.

Abstract: Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector including a carbon layer disposed on a substrate; and a positive active material layer disposed on the current collector, wherein the carbon layer has a loading level of 0.5 g/m2 to 3 g/m2. The effects of the carbon layer include improving the high power characteristics and the power density by decreasing the internal resistance of an electrode, and to improve the power density by providing uniform current to the positive electrode. The carbon layer may have a thickness of about 1 ?m to about 2 ?m. The carbon layer may include a carbon-based material of artificial graphite, natural graphite, carbon black, acetylene black, ketjen black, denka black, or combinations thereof.

Abstract: A method of preparing a positive active material for a rechargeable lithium battery includes dry-coating a surface of a material capable of doping and dedoping lithium with a carbon nanotube.

Abstract: A method of manufacturing a positive active material includes dry-coating a surface of a material represented by LiaNixCoyMnzO2, where 0.90?a?1.11, 0.5?x<1.0, 0<y?0.5, and 0<z?0.5, and x+y+z=1, with a carbon material.

Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, the positive active material comprising a compound represented by the following Chemical Formula 1: LiaNixCoyMnzMwO2.

Abstract: Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector including a carbon layer disposed on a substrate; and a positive active material layer disposed on the current collector, wherein the carbon layer has a loading level of 0.5 g/m2 to 3 g/m2. The effects of the carbon layer include improving the high power characteristics and the power density by decreasing the internal resistance of an electrode, and to improve the power density by providing uniform current to the positive electrode. The carbon layer may have a thickness of about 1 ?m to about 2 ?m. When the carbon layer has a thickness within this range, it may achieve the desired effects of a carbon layer. The carbon layer may include a carbon-based material of artificial graphite, natural graphite, carbon black, acetylene black, ketjen black, denka black, or combinations thereof.

Abstract: A positive active material for a rechargeable lithium battery is a secondary particle formed of an assembly of primary particles of a nickel-based compound. The positive active material has an average particle diameter ranging from 5.5 ?m to 7.5 ?m and a specific surface area ranging from 0.40 m2/g to 2.0 m2/g. When the positive active material has an average particle diameter ranging from 11 ?m to 13 ?m, the positive active material has a specific surface area ranging from 0.15 m2/g to 1.0 m2/g. A rechargeable lithium battery includes the positive active material.