Abstract: Embodiments of the present disclosure provide an electrode assembly and a traction battery. The electrode assembly includes a plurality of tabs. The plurality of tabs is stacked to each other. At least one of the plurality of tabs includes a tab body and a free end connected to the tab body. The free end is formed into a bent portion through at least a single bending. The bent portion is stacked at a side of the tab body. In some specific embodiments, the tab is designed as a long tab with a long length. When ultrasonic welding is performed, the tab is bent to form the bent portion, and the bent portion is stacked on the tab body for the ultrasonic welding. In this case, since a thickness of a position where the ultrasonic welding is performed is increased, welding stability of the tab can be improved.

Abstract: The present application relates to a welding positioning apparatus, wherein a press head may be capable of pressing a first component against the second component, and dust generated during welding may be allowed to be collected in a dust collection chamber, and discharged to the outside of the welding positioning apparatus by an external dust extractor to keep the welding environment clean, thereby improving the welding quality.

Abstract: A combination-type suction cup base, comprising a mounting base with a through-hole and a screw hole is described. One side of the through-hole is connected with a suction cup with a screw stem which absorbs the base to a wall surface. The screw stem is connected with a cap after passing through the through-hole. The screw hole is located in the region covered by the cap. At least two different object holders are mounted on the base. The base abandons the structure model of a cross rail spanned between two mounting bases and mounting multiple object holders on the cross rail. Thus, the structure is simple and small, with simple, convenient operation, facilitating hanging of objects by consumers, making the washroom, etc. tidier and cleaner. Furthermore, the base can also be fixed to an unsmooth wall surface by means of a screw, broadening the range of use of the-base.

Abstract: The present invention discloses a hanger to be fixed on wall, comprising a cover, a housing and a fixing piece, wherein the housing is provided with a through hole therein, across which the fixing piece is fixedly connected to the cover, a groove is formed between the housing and the cover for suspending articles. The hanger further comprises a circumferential positioning apparatus between the housing and the fixing piece. The hanger disclosed by the present invention can be used on both the smooth and rough wall surfaces, thereby having a much wider application area; and because of the circumferential positioning apparatus, mounting and fixing of the hanger become much easier; the hanger has a simple structure, its rear cover can effectively prevent the articles hanged from falling, it is thus good for use.