Disclosed are a wound electrode assembly, and a method and manufacturing apparatus for manufacturing the wound electrode assembly. The wound electrode assembly includes an electrode sheet. The electrode sheet includes a winding ending section, the winding ending section is provided with a plurality of first tabs, the plurality of first tabs are laminated, and among the two adjacent first tabs, a width of the first tab close to a winding center of the wound electrode assembly is greater than a width of the first tab away from the winding center. Among the two adjacent first tabs, a width of the first tab close to the winding center is greater than a width of the first tab away from the winding center. After the winding ending section is wound, the amount of misalignment between the two adjacent first tabs is reduced.

A secondary battery includes a bare cell including an electrode assembly, an electrode tab drawn upwardly from the electrode assembly, and a pouch surrounding the electrode assembly, the electrode tab being exposed to an outside through the pouch, a protection circuit module (PCM) connected to the electrode tab, a case holder disposed between the pouch and the PCM to support the PCM, a case top on the bare cell, the PCM and the case holder being covered by the case top, a case bottom at a bottom side of the bare cell, and a plate attached to a side surface of the bare cell, the plate being coupled to the case top and the case bottom.

A secondary battery includes a bare cell including an electrode assembly, an electrode tab drawn upwardly from the electrode assembly, and a pouch surrounding the electrode assembly, the electrode tab being exposed to an outside through the pouch, a protection circuit module (PCM) connected to the electrode tab, a case holder disposed between the pouch and the PCM to support the PCM, a case top on the bare cell, the PCM and the case holder being covered by the case top, a case bottom at a bottom side of the bare cell, and a plate attached to a side surface of the bare cell, the plate being coupled to the case top and the case bottom.

The present disclosure provides an installation device, a battery, an electric device, a manufacturing method and a manufacturing equipment for the battery. The installation device is used for the battery including a case body, the installation device includes a base and a bracket, the base is configured to be connected to the case body; the bracket is configured to assemble an electrical connector of the battery, and is configured to be slidably connected with the base. The installation device according to the embodiment of the present application can reduce the operation space required by the installation device to fix the electrical connector while realizing the quick fixation of the electrical connector, so as to facilitate the installation of the electrical connector in a limited space. Furthermore, the space occupancy rate of the battery case by the installation device can be reduced, the space utilization rate of the battery case can be improved, and the energy density of the battery can be improved.

The present invention relates to: a shape correction device for a frame body; and a method for manufacturing an electrolyte film/electrode structure that is provided with a resin frame for a fuel cell. A shape correction device, which corrects the shape of a frame body that is provided with a rectangular opening, is equipped with a pressing mechanism that applies, to each side of the frame body, a pressing force directed from the inner side to the outer side of the opening. The pressing mechanism may have a first bar and a second bar, which apply the pressing force by being in contact with inner wall surfaces of each side of the frame body.

The present invention relates to: a shape correction device for a frame body; and a method for manufacturing an electrolyte film/electrode structure that is provided with a resin frame for a fuel cell. A shape correction device, which corrects the shape of a frame body that is provided with a rectangular opening, is equipped with a pressing mechanism that applies, to each side of the frame body, a pressing force directed from the inner side to the outer side of the opening. The pressing mechanism may have a first bar and a second bar, which apply the pressing force by being in contact with inner wall surfaces of each side of the frame body.

The present disclosure provides an atomization device manufacturing method and an atomization device. The method steps are, firstly obtaining a hollow rod, two ends of which are respectively provided with an opening, secondly assembling an atomization component to the opening at one end of the rod, then assembling a battery component in the rod and electrically connecting the battery component with the atomization component, and finally assembling a sensing component to the opening at the other end of the rod and electrically connecting the sensing component with the battery component.

The present disclosure provides an atomization device manufacturing method and an atomization device. The method steps are, firstly obtaining a hollow rod, two ends of which are respectively provided with an opening, secondly assembling an atomization component to the opening at one end of the rod, then assembling a battery component in the rod and electrically connecting the battery component with the atomization component, and finally assembling a sensing component to the opening at the other end of the rod and electrically connecting the sensing component with the battery component.

A battery including a housing assembly, an electrode assembly, and a conductive assembly. The housing assembly includes a first housing fixed on a second housing. The second housing is provided with a cavity and includes a bottom plate. The electrode assembly is disposed in the cavity. The bottom plate contains an elastic portion protruding toward the first housing. The electrode assembly includes a first electrode plate and a second electrode plate stacked together. A surface of the first electrode plate facing back from a center of the electrode assembly contains a first blank foil region uncoated with a first active material and electrically connected to the conductive assembly. A surface of the second electrode plate facing back from the center of the electrode assembly contains a second blank foil region uncoated with a second active material. The elastic portion is electrically connected to the second blank foil region.

A battery including a housing assembly, an electrode assembly, and a conductive assembly. The housing assembly includes a first housing fixed on a second housing. The second housing is provided with a cavity and includes a bottom plate. The electrode assembly is disposed in the cavity. The bottom plate contains an elastic portion protruding toward the first housing. The electrode assembly includes a first electrode plate and a second electrode plate stacked together. A surface of the first electrode plate facing back from a center of the electrode assembly contains a first blank foil region uncoated with a first active material and electrically connected to the conductive assembly. A surface of the second electrode plate facing back from the center of the electrode assembly contains a second blank foil region uncoated with a second active material. The elastic portion is electrically connected to the second blank foil region.