Abstract: The present application discloses a battery end cover assembly, an energy storage apparatus and an electric device. The battery end cover assembly includes an end cover; terminal assemblies connected to the end cover; and a pressure relief mechanism disposed on the end cover, wherein the area of a figure formed by an outer contour of the end cover is a first area S1, the area of a projection of the pressure relief mechanism on the end cover is a second area S2, and the second area S2 accounts for 0.5% to 5% of the first area S1. According to the present application, the probability of untimely pressure relief is reduced, and the safety of a battery is improved. Moreover, the overall structural strength of the battery end cover assembly can be guaranteed, and the probability that the pressure relief mechanism falls off to be invalid is reduced.

Abstract: A heating sheet and a battery module are provided. The battery module includes multiple battery cells and a heating sheet. The heating sheet includes multiple heating units and multiple connection units, and two adjacent heating units are coupled with each other through a connection unit. One heating unit may be attached to a side wall of one battery cell, and the connection unit corresponds to the gap region.

Abstract: A fixing assembly for a battery module and a battery pack are provided. The fixing assembly for the battery module includes an end plate, a fixing member, and a first band. The end plate is provided with a limiting member protruding from a surface of the end plate. The fixing member is configured to connect multiple battery modules and abut against the surface of the end plate provided with the limiting member, such that the fixing member, the limiting member, and the end plate can cooperatively define a positioning region. The first band is configured to abut against the surface of the end plate provided with the limiting member to bind the battery module. The first band abuts against the positioning region, such that the fixing member and the limiting member can cooperatively abut against the first band.

Abstract: The present disclosure discloses an end cover assembly, an energy storage device and electrical equipment. The end cover assembly includes an end cover provided with an outlet hole penetrating therethrough, an electrode terminal arranged on one side of the end cover, a sealing member including a first sealing portion and a plastic member including a first plastic portion. A projection, on the end cover of the electrode terminal along a thickness direction of the end cover covers the outlet hole, and a first gap surrounding the outlet hole is formed between the electrode terminal and the end cover. The first sealing portion fills one side of the first gap close to the outlet hole. The first plastic portion fills one side of the first gap away from the outlet hole; and a second gap is formed between the first sealing portion and the first plastic portion.

Abstract: Disclosed are an end cover assembly, an energy storage apparatus and an electric device. The end cover assembly includes an end cover, a terminal assembly and a top adhesive sheet, and the end cover has a first surface and a second surface opposite to each other in the thickness direction thereof; the terminal assembly is disposed on the end cover; and the top adhesive sheet is attached to the first surface of the end cover, the top adhesive sheet is provided with a first opening through which the terminal assembly penetrates. According to the present application, the attaching difficulty of the top adhesive sheet on the end cover can be reduced, and the attaching efficiency is improved; and the size of the first opening is more reasonable, an insulation effect is ensured, a probability of foreign matter accumulation is reduced, and the use safety is improved.

Abstract: Provided are a conductive plating apparatus, a plating system and a plating method for a conductive film. The conductive plating apparatus is configured to electrically connect the conductive film with a power supply. A first conductive structure includes a first conductive roller and a first press roller. A second conductive structure includes a second conductive roller and a second press roller. The first and second conductive structures are configured to allow the conductive film to sequentially pass between the first conductive roller and the first press roller and between the second the conductive roller and the second press roller. The first and second press rollers are configured to be brought into contact with and apply pressures to two opposite surfaces of the conductive film, respectively, and to be equipotential. The second press roller and the first conductive roller are configured to be equipotential.

Abstract: A battery box and a battery pack are provided. The battery box includes a box body, a cooling plate, and a stiffener. The cooling plate is connected with an outside of a wall plate of the box body, and the stiffener is connected with the box body and abuts against a side of the cooling plate away from the wall plate. The cooling plate is connected with the box body, the stiffener is connected with the box body, and the stiffener abuts against the side of the cooling plate away from the wall plate.

Abstract: Provided are a coating device and a coating method for a non-uniform thickness current collector. The coating device includes a thickness sensor, an offset correction controller, and an offset correction mechanism. The thickness sensor is configured to detect an abrupt thickness change point on the non-uniform thickness current collector and output an abrupt change point signal. The offset correction controller is configured to receive the abrupt change point signal, compare the received abrupt change point signal with a predetermined abrupt thickness change point signal, determine whether the non-uniform thickness current collector is offset and what an offset direction is, and transmit an offset correction signal. The offset correction mechanism is configured to receive the offset correction signal and perform an offset correction action in a direction opposite to the offset direction. This coating device uses the coating method and can accurately coat the coating areas.

Abstract: A fixing structure (300) for a battery pack is provided. The battery pack includes a box body (100). The fixing structure (300) is disposed on an outer surface of the box body (100) and includes a first connecting body (301), a second connecting body (302), and a transition body (303). The first connecting body (301) has one end connected with the box body (100). The second connecting body (302) has one end connected with the box body (100). The second connecting body (302) is spaced apart from the first connecting body (301). The transition body (303) has two ends connected with one end of the first connecting body (301) away from the box body (100) and one end of the second connecting body (302) away from the box body (100) respectively.

Abstract: A fixing structure (300) for a battery pack is provided. The battery pack includes a box body (100). The fixing structure (300) is disposed on an outer surface of the box body (100) and includes a first connecting body (301), a second connecting body (302), and a transition body (303). The first connecting body (301) has one end connected with the box body (100). The second connecting body (302) has one end connected with the box body (100). The second connecting body (302) is spaced apart from the first connecting body (301). The transition body (303) has two ends connected with one end of the first connecting body (301) away from the box body (100) and one end of the second connecting body (302) away from the box body (100) respectively.

Abstract: A heating sheet and a battery module are provided. The battery module includes multiple battery cells and a heating sheet. The heating sheet includes multiple heating units and multiple connection units, and two adjacent heating units are coupled with each other through a connection unit. One heating unit may be attached to a side wall of one battery cell, and the connection unit corresponds to the gap region.

Abstract: A battery module fixing assembly includes: an end plate (120) configured to cooperate with an outer side wall of a battery module (110); a fixing member (130) cooperating with the end plate, a part of the fixing member (130) extending to an end of the battery module (110) to be connected to the battery module (110); a first binding tape (140) wrapped around an outside of the battery module (110) and an outside of the end plate (120) to bind the battery module. When the fixing member (130) and the first binding tape (140) are mounted in place, the first binding tape (140) abuts against and is engaged with at least a part of the fixing member (130).

Abstract: Provided are a conductive plating apparatus, a plating system and a plating method for a conductive film. The conductive plating apparatus is configured to electrically connect the conductive film with a power supply. A first conductive structure includes a first conductive roller and a first press roller. A second conductive structure includes a second conductive roller and a second press roller. The first and second conductive structures are configured to allow the conductive film to sequentially pass between the first conductive roller and the first press roller and between the second the conductive roller and the second press roller. The first and second press rollers are configured to be brought into contact with and apply pressures to two opposite surfaces of the conductive film, respectively, and to be equipotential. The second press roller and the first conductive roller are configured to be equipotential.

Abstract: Provided are a conductive film, a preparation process therefor, an electrical plate, and a battery, relating to the conductive film technology. The conductive film includes a substrate film, a functional layer and a protective layer that are sequentially arranged on the substrate film. The substrate film is a modified bidirectionally oriented polypropylene film. The substrate film has a tensile strength in a mechanical direction greater than or equal to 200 MPa, and an elongation at break in the mechanical direction greater than or equal to 75%. The conductive film adopts the modified bidirectionally oriented polypropylene film as the substrate film, which has a relatively high tensile strength and a suitable elongation at break compared with the conventional bidirectionally oriented polypropylene film (BOPP), and thus the conductive film has a relatively high tensile strength and elongation at break.

Abstract: Provided are a lower plastic member and a power battery. The lower plastic member includes a body protruding towards a jelly roll of the power battery to form a protruding portion. The protruding portion has at least one ventilation channel defined thereon. A gas in the power battery flows outside through the ventilation channel. The body has a liquid injection hole and a flow guide shroud provided thereon. The flow guide shroud is arranged at an opening on a side of the liquid injection hole facing towards the jelly roll. The flow guide shroud includes a shielding plate and a plurality of connection posts. The shielding plate has an inclined surface facing towards the body and inclined towards a side away from the body in a radially outward direction of the shielding plate.

Abstract: Provided are a conductive film and a preparation method for the same, which relate to the technical field of conductive films. The preparation method for the conductive film includes: forming a metal process layer on a surface of an insulating layer by means of evaporation deposition, wet electroplating or chemical plating; forming a metal transition layer on a surface of the metal process layer facing away from the insulating layer by means of magnetron sputtering; and forming a metal functional layer on a surface of the metal transition layer facing away from the metal process layer. The conductive film obtained by this preparation method can have relatively good conductivity and density while having a relatively thick metal conductive layer.

Abstract: A fixing assembly for a battery module and a battery pack are provided. The fixing assembly for the battery module includes an end plate, a fixing member, and a first band. The end plate is provided with a limiting member protruding from a surface of the end plate. The fixing member is configured to connect multiple battery modules and abut against the surface of the end plate provided with the limiting member, such that the fixing member, the limiting member, and the end plate can cooperatively define a positioning region. The first band is configured to abut against the surface of the end plate provided with the limiting member to bind the battery module. The first band abuts against the positioning region, such that the fixing member and the limiting member can cooperatively abut against the first band.

Abstract: A battery box and a battery pack are provided. The battery box includes a box body, a cooling plate, and a stiffener. The cooling plate is connected with an outside of a wall plate of the box body, and the stiffener is connected with the box body and abuts against a side of the cooling plate away from the wall plate. The cooling plate is connected with the box body, the stiffener is connected with the box body, and the stiffener abuts against the side of the cooling plate away from the wall plate.

Abstract: Provided are a coating device and a coating method for a non-uniform thickness current collector. The coating device includes a thickness sensor, an offset correction controller, and an offset correction mechanism. The thickness sensor is configured to detect an abrupt thickness change point on the non-uniform thickness current collector and output an abrupt change point signal. The offset correction controller is configured to receive the abrupt change point signal, compare the received abrupt change point signal with a predetermined abrupt thickness change point signal, determine whether the non-uniform thickness current collector is offset and what an offset direction is, and transmit an offset correction signal. The offset correction mechanism is configured to receive the offset correction signal and perform an offset correction action in a direction opposite to the offset direction. This coating device uses the coating method and can accurately coat the coating areas.

Abstract: The disclosure relates to a baking apparatus for secondary battery. The baking apparatus for secondary battery comprises: a feeding device, a discharging device spaced from the feeding device in a horizontal direction, a baking device disposed between the feeding device and the discharging device, and a transferring device. The baking device comprises a baking oven including a housing and a cover for connecting hermetically with the housing. The transferring device is configured to put a secondary battery to be baked, which is conveyed by the feeding device, into the baking oven, and take the baked secondary battery out of the baking oven and convey it to the discharging device.