Abstract: A cathode active material for a lithium secondary battery including a lithium-transition metal composite oxide particle is provided. A crystal grain size of the lithium-transition metal composite oxide particle measured by an XRD analysis is 250 nm or more, and an XRD peak intensity ratio of the lithium-transition metal composite oxide particle is 9.8% or less. A lithium secondary battery including the lithium-transition metal composite oxide particle and having improved life-span and rate capability is provided.

Abstract: A cathode active material for an all-solid-state battery includes: active material particles; and a coating layer covering at least a portion of the surface of the active material particles, wherein the coating layer includes lithium (Li), niobium (Nb), and at least one element selected from the group consisting of vanadium (V), zirconium (Zr) and combinations thereof.

Abstract: A cathode active material for a lithium secondary battery including a lithium-transition metal composite oxide particle is provided. A crystal grain size of the lithium-transition metal composite oxide particle measured by an XRD analysis is 250 nm or more, and an XRD peak intensity ratio of the lithium-transition metal composite oxide particle is 9.8% or less. A lithium secondary battery including the lithium-transition metal composite oxide particle and having improved life-span and rate capability is provided.

Abstract: Disclosed is a wireless charging coil module for wirelessly receiving or transmitting electric power or signals by using electromagnetic fields including a base, and a coil part including a coil provided on one surface of the base to be rotated in one direction. The coil includes a rolled thin plate of a conductive metal disposed on the one surface of the base, and a side part of the coil has a shape, a central portion of which protrudes or is recessed.

Abstract: Disclosed is a coil module that receives or transmits electric power or signals wireless by using an electromagnetic field, the coil module including a board, a coil provided on at least one surface of the board to be rotated in one direction, and a magnetic part covering at least a portion of the coil while directly contacting a surface of the coil, and that acts as an electromagnetic booster that enhances an intensity of the electromagnetic field generated on the surface of the coil, and the magnetic part decrease, among a skin effect and a proximity effect of an eddy current generated in the coil, the proximity effect by isolating electric power in a gap of the coil that is rotated in the one direction.

Abstract: The present disclosure relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.

Abstract: The present disclosure relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.

Abstract: Disclosed is a method of manufacturing a coil module that receives or transmits electric power or signals wireless by using an electromagnetic field. The method includes preparing a substrate, forming a coil on the substrate, and forming a magnetic part covering at least a portion of the coil while directly contacting a surface of the coil, and that acts as an electromagnetic booster that enhances an intensity of the electromagnetic field generated on the surface of the coil, and the magnetic part is formed through at least one of electroless plating, electro-plating, deposition, and printing.

Abstract: Disclosed is a coil module that receives or transmits electric power or signals wireless by using an electromagnetic field, the coil module including a substrate, a coil provided on at least one surface of the substrate to be rotated in one direction, and a magnetic part covering at least a portion of the coil while directly contacting a surface of the coil, and that acts an electromagnetic booster that enhances an intensity of the electromagnetic field generated on the surface of the coil, and the magnetic part decrease, among a skin effect and a proximity effect of an eddy current generated in the coil, the proximity effect by isolating electric power in a gap of the coil that is rotated in the one direction.

Abstract: The present disclosure relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.

Abstract: The present disclosure relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.

Abstract: The present disclosure relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.

Abstract: The present invention relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.

Abstract: The present invention is related to an apparatus and method for detecting a foreign object in a wireless power transmitting system. Specifically, a wireless power transmitting apparatus includes a primary core block which transmits wireless power to a wireless power receiving apparatus through magnetic induction or magnetic resonance; an electric driving unit applying an AC (Alternating Current) signal required for the primary core block to transmit the wireless power; a control unit being connected to the electric driving unit and generating a control signal for controlling the AC signal; and a current measurement unit measuring a current flowing into the primary core block and obtaining a current measurement value converted to a numeric value relevant for the control unit to analyze the current.

Abstract: The present invention relates to a method for providing compatibility with a wireless power transmitting device in a wireless power transmitting system. The method includes the steps of: detecting a wireless power receiving device on the basis of a load change; transmitting a request signal for requesting information for a receiving device to the wireless power receiving device; receiving the information for the receiving device from the wireless power receiving device, wherein the information selectively includes version information on standard technical specifications for realizing the wireless power receiving device; and, when the version information is included in the information for the receiving device, performing a wireless power transmitting operation according to the standard technical specifications corresponding to the version information.

Abstract: The present invention is related to an apparatus and method for detecting a foreign object in a wireless power transmitting system. Specifically, a wireless power transmitting apparatus includes a primary core block which transmits wireless power to a wireless power receiving apparatus through magnetic induction or magnetic resonance; an electric driving unit applying an AC (Alternating Current) signal required for the primary core block to transmit the wireless power; a control unit being connected to the electric driving unit and generating a control signal for controlling the AC signal; and a current measurement unit measuring a current flowing into the primary core block and obtaining a current measurement value converted to a numeric value relevant for the control unit to analyze the current.