Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in a thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.

Abstract: Disclosed herein relates to an electrode for a lithium secondary battery and a manufacturing method thereof, and since the electrode for a lithium secondary battery is provided with an auxiliary coating layer containing inorganic particles, a phenolic compound, and a binder at the end of an electrode mixture layer containing an electrode active material, thereby improving energy density of the battery due to an improvement in thickness deviation at the end of the electrode mixture layer, and preventing lithium from being precipitated at the end of the electrode, especially the negative electrode, due to increase in the adhesive strength of the separator at the end of the electrode, it has an advantage of excellent safety.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts integrally formed on opposite longitudinal end portions of the rail in the lengthwise direction, and a hollow profile that extends along the lengthwise direction of the rail and has at least one through-hole formed in a surface facing the roof panel of the vehicle and that is integrally formed inside the rail.

Abstract: A roof rack mounted on a roof panel of a vehicle includes a main body including a rail that extends along a lengthwise direction and forms the main body and support parts integrally formed on opposite longitudinal end portions of the rail in the lengthwise direction, and a hollow profile that extends along the lengthwise direction of the rail and has at least one through-hole formed in a surface facing the roof panel of the vehicle and that is integrally formed inside the rail.

Abstract: The present invention provides a steering wheel and a method of manufacturing the wheel that includes: providing parts including a frame 112 that is composed of a rim 112a and spokes 112b, an upper foam member 114 that is fitted on the upper portion of the frame, a lower foam member 116 that is fitted on the lower portion of the frame and contacts upper foam member 114, and a leather cover 118 that covers upper foam member 114 and lower foam member 116; assembling the foam members by fitting upper foam member 114 and lower foam member 116 onto the upper portion and the lower portion of frame 112; and attaching leather cover 118 by covering the outsides of upper foam member 114 and lower foam member 116 with the leather cover. According to the steering wheel, first circular grooves G11 where at least one of upper foam member 114 and lower foam member 116 is fitted are formed along the circumference of rim 112a of frame 112 to prevent rotation of the foam members and reduce the weight of the frame.

Abstract: The present invention provides a steering wheel and a method of manufacturing the wheel that includes: providing parts including a frame 112 that is composed of a rim 112a and spokes 112b, an upper foam member 114 that is fitted on the upper portion of the frame, a lower foam member 116 that is fitted on the lower portion of the frame and contacts upper foam member 114, and a leather cover 118 that covers upper foam member 114 and lower foam member 116; assembling the foam members by fitting upper foam member 114 and lower foam member 116 onto the upper portion and the lower portion of frame 112; and attaching leather cover 118 by covering the outsides of upper foam member 114 and lower foam member 116 with the leather cover. According to the steering wheel, first circular grooves G11 where at least one of upper foam member 114 and lower foam member 116 is fitted are formed along the circumference of rim 112a of frame 112 to prevent rotation of the foam members and reduce the weight of the frame.