Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.

Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.

Abstract: An example image forming apparatus includes a frame, a first shaft supported by the frame, and a first coupler. The first coupler includes a body coupled to one end of the first shaft and a first protrusion protruding from the body in an axial direction of the first shaft, the first protrusion having a first surface and a second protrusion protruding from the first surface. The second protrusion is to lock with a groove to mount a cartridge on the frame, the first shaft is to provide a rotational force in a first rotational direction to rotate the second protrusion of the first coupler and to insert the second protrusion into the groove to lock with the cartridge, and the first surface of the first protrusion of the first coupler is to contact a second surface to transmit the rotational force to the second coupler in the first rotational direction.

Abstract: A detachable multifunctional cleaner comprises a handle which has an insertion piece downwardly protruded from one end; a cover which has an insertion hole at one side of an upper surface for inserting the insertion piece; and a foreign substance removing means which is detachably attached to the cover, wherein the insertion piece and the insertion hole are assembled on a vertical line Z with respect to a bottom surface of the cover, and at least one position determination protrusion and at least one position determination groove are formed in the insertion piece and the insertion hole, respectively, for determining the engaging position of the handle.

Abstract: There is provided a duster which is suitable for cleaning. To prevent a brush wound around a rod from slipping in the direction of the length and the direction of the axial rotation of the rod, the duster comprises: a number of sharp protrusions formed on a portion of the rod around which the brush is wound, so that a stitched portion of the brush is stuck to the sharp protrusions to semi-permanently prevent the slip of the brush, thereby maintaining the product to be like a first assembled state thereof, preventing the function of the duster from being deteriorated, and preventing the surface of an object to be cleaned from being scratched by the rod which is partially exposed. In addition, since the slip of the brush is prevented by using no adhesive agent, the product is easily assembled and the cost is greatly reduced accordingly.