Abstract: The present invention relates to a lithium composite oxide having improved stability and electrical characteristics as a positive electrode material by inhibiting an interfacial side reaction in the lithium composite oxide and improving the stability of a crystal structure and ion conductivity, and a lithium secondary battery including the same.

Abstract: A shoe care apparatus includes an inner cabinet, a suction port, a discharge port, a connection flow path, a blower and a moisture absorbent block. The moisture absorbent block includes an inner mesh, an outer mesh and a moisture absorbent. A first flow path, which is a portion of the connection flow path, is provided inside the inner mesh, and a second flow path, which is a portion of the connection flow path, is provided outside the outer mesh. Air inside the inner cabinet flows into the connection flow path through the suction port, flows to the second flow path from the first flow path while passing through the moisture absorbent block, is dehumidified by means of the moisture absorbent block, and then is circulated inside of the shoe care apparatus while being discharged into the inner cabinet again through the discharge port.

Abstract: A shoes care device includes a first management device, a second management device, a steam generator, and a controller. Each of the first management device and the second management device may be configured to include an inner cabinet, a connection path, a blowing part, and a dehumidifying part. A supply degree of steam, a dehumidification degree by a dehumidifying part, and a flow degree of air circulated in a connection path can be different between the first management device and the second management device, and as a result, the shoes can be managed under different conditions in the first management device and the second management device.

Abstract: Proposed is a dual band RFID tag including a first rectifier configured to receive and rectify a first RF signal modulated at a first frequency, a first regulator configured to regulate an output voltage of the first rectifier, a second rectifier configured to receive and rectify a second RF signal modulated at a second frequency, a second regulator configured to regulate an output voltage of the second rectifier, a voltage distributor connected to a first node and a ground in a state of being positioned therebetween, the output terminal of the first rectifier and the output terminal of the second rectifier being both connected to the first node, a multiplexer configured to output any one of an analog detection signal output from a sensor and an output signal of the voltage distributor, in response to a first selection signal or a second selection signal, and an analog-to-digital converter configured to receive as an operating voltage a voltage of a second node to which an output terminal of the first regulat

Abstract: The present invention relates to an antenna structure for communication applications, which is used to increase the half-power beamwidth (HPBW) in the H-plane of the slot coupled microstrip patch antenna with a finite size ground plate and a finite size reflector. The antenna combination according to the present invention comprises a front-plate composed of a curved plate, a flat plate, and several patches. By using the present invention, the half-power beamwidth in the H-plane would be increased.