Abstract: Provided are a cover plate, a top cover, a battery cell, and a battery module. The cover plate is used for the battery cell. The cover plate includes: a plate body having a through-hole; and a raised edge disposed on a surface of the plate body and surrounding the through-hole. The raised edge has at least one notch. An internal space defined by the raised edge is in communication with an external space outside the raised edge through the at least one notch.

Abstract: An end cover assembly, an energy-storage device, and an electricity-consumption device are disclosed in the present disclosure. The end cover assembly includes a top cover, an explosion-proof valve, and a protective sheet. The top cover has a first mounting surface and a second mounting surface. The top cover defines a first mounting recess, an explosion- proof hole, and a vent recess, where the first mounting recess is recessed from the first mounting surface, and the vent recess is in communication with the explosion-proof hole. The explosion-proof valve is attached to the second mounting surface and covers an opening of the explosion-proof hole positioned on the second mounting surface. The protective sheet is attached to the bottom wall of the first mounting recess and covers an opening of the explosion-proof hole positioned on the bottom wall of the first mounting recess and the other part of the vent recess.

Abstract: An end cover assembly, an energy-storage device, and an electricity-consumption device are disclosed in the present disclosure. The end cover assembly includes a top cover, an explosion-proof valve, and a protective sheet. The top cover has a first mounting surface and a second mounting surface. The top cover defines a first mounting recess, an explosion-proof hole, and a vent recess, where the first mounting recess is recessed from the first mounting surface, and the vent recess is in communication with the explosion-proof hole. The explosion-proof valve is attached to the second mounting surface and covers an opening of the explosion-proof hole positioned on the second mounting surface. The protective sheet is attached to the bottom wall of the first mounting recess and covers an opening of the explosion-proof hole positioned on the bottom wall of the first mounting recess and the other part of the vent recess.

Abstract: An energy-storage device, an electrical apparatus, and a winding method are provided in the disclosure. The energy-storage device includes an electrode and a separator, where the electrode and the separator are stacked and wound to form a cell. The electrode is connected with a tab at an end of the electrode in a width direction of the electrode, where the tab includes a first tab and at least one second tab. The first tab is positioned adjacent to an end of the electrode in a length direction of the electrode, and the first tab defines a U-shaped notch. The U-shaped notch is configured to indicate a winding end position of the electrode, facilitating identification and winding automation.

Abstract: The present disclosure provides a lower plastic part, an end cover assembly, an energy storage device, and electrical equipment. The lower plastic part has a first surface and a second surface opposite to the first surface. The lower plastic part defines a groove, a stream guidance hole, and a concave portion. The groove and the concave portion are located at opposite ends of the lower plastic part in its length direction. The stream guidance hole penetrates through a bottom wall of the groove. A hole diameter of the stream guidance hole is progressively smaller. The lower plastic part further comprises a plurality of first ejector pin parts, a plurality of second ejector pin parts, and a plurality of third ejector pin parts which are symmetrical with respect to a center line of the lower plastic part in a width direction.

Abstract: An end cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the disclosure. The end cover assembly includes a top cover, a lower plastic member, a sealing member, and a terminal post. The lower plastic member is fixed to the top cover and defines a hollow hole and a first flow passage. The hollow hole extends through the lower plastic member in a direction from the lower plastic member to the top cover. One end of the first flow passage is in communication with a side wall of the hollow hole, and another end of the first flow passage is in communication with an outside. The sealing member includes a first sealing portion disposed in the hollow hole. The terminal post has a flange portion.

Abstract: An energy storage apparatus and an electric device are provided in the disclosure. The energy storage apparatus includes an upper cover, a deformation member, a lower plastic member, a terminal post, a connector, and a tab. The lower plastic member is provided with a grid structure at one side of the lower plastic member where the through hole is defined at the fourth surface, and the grid structure separates the through hole into multiple sub-holes. The connector extends from the first connection portion that is connected to the terminal post to the second connection portion that is disposed at one side of the grid structure facing away from the deformation member, and an orthographic projection of the connector on the fourth surface of the lower plastic member covers at least part of the multiple sub-holes.

Abstract: An end cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the disclosure. The end cover assembly includes a top cover, a lower plastic member, a sealing member, and a terminal post. The lower plastic member is fixed to the top cover and defines a hollow hole and a first flow passage. The hollow hole extends through the lower plastic member in a direction from the lower plastic member to the top cover. One end of the first flow passage is in communication with a side wall of the hollow hole, and another end of the first flow passage is in communication with an outside. The sealing member includes a first sealing portion disposed in the hollow hole. The terminal post has a flange portion.

Abstract: A terminal assembly, a top cover assembly, an energy storage device and electrical equipment are provided. The terminal assembly has an electrode terminal, an plastic member and a connector. A diametrical dimension of the electrode terminal is D, a minimum radial distance between the connector and the electrode terminal is d, and a maximum radial expansion dimension within a normal use range of the electrode terminal is P, 20?D/d?60, 0.01?P/D?0.03.

Abstract: An energy-storage device, an electrical apparatus, and a winding method are provided in the disclosure. The energy-storage device includes an electrode and a separator, where the electrode and the separator are stacked and wound to form a cell. The electrode is connected with a tab at an end of the electrode in a width direction of the electrode, where the tab includes a first tab and at least one second tab. The first tab is positioned adjacent to an end of the electrode in a length direction of the electrode, and the first tab defines a U-shaped notch. The U-shaped notch is configured to indicate a winding end position of the electrode, facilitating identification and winding automation.

Abstract: A manufacturing method of a top cover assembly, a top cover assembly and an energy storage device are provided. The method includes: providing a top cover plate, which is provided with an outlet hole; placing an electrode terminal above one side of the top cover plate to cover the outlet hole, so that a first space is defined between the top cover plate and the electrode terminal; placing a connector on the side of the top cover plate that is used for placing the electrode terminal. The connector has a first end portion surrounding a peripheral surface of the electrode terminal, and the connector has a second end portion in contact with the top cover plate.

Abstract: The present application discloses an energy storage device and an electrical equipment. The energy storage device includes: a first lower plastic member, a second lower plastic member, a positive terminal, a negative terminal, a positive connector and a negative connector. The first lower plastic member and the second lower plastic member are provided at intervals. An end of the first lower plastic member facing the second lower plastic member is provided with an explosion-proof net. An end of the second lower plastic member facing the first lower plastic member is provided with a protrusion. The explosion-proof net and the protrusion protrude toward a same side. A first mounting hole is formed on the first lower plastic member, and a second mounting hole is formed on the second lower plastic member.

Abstract: Provided are a plastic component, a battery, a battery module, and an electric device. The plastic component (10) satisfying at least one of condition 1): 1 mm?c?e?1 mm and 1 mm?c?f?2 mm, where c is a thickness of the body, f is a depth of the buffer recess (11), e is a depth of the connection piece recess (21); and condition 2): 1 mm?p?2 mm, p=(a?t*g?r*d)/n, where g is a length of the connection piece recess (21), t is a number of the connection piece recesses (21), r is a number of the buffer recesses (11), d is a length of the buffer recess (11), a is a length of the body, and p is a thickness of each of n side walls arranged in a length direction of the body.

Abstract: An energy storage device includes a current collecting member. The current collecting member includes an adapter and an insulator, the adapter includes a first connecting portion, a fuse portion, and a second connecting portion, and the ratio of the width of the fuse portion to the width of the first connecting portion is in a range from ? to ?. The first connecting portion is provided with first corners, and the second connecting portion is provided with second corners. The insulator is provided with a first protective portion, a second protective portion and a third protective portion. The first protective portion covers the first corners, the second protective portion covers the second corners, the third protective portion covers a first surface of the fuse portion of the adapter, and a second surface of the fuse portion is at least partially exposed from the insulator.

Abstract: Provided are a plastic component and a battery having the same. The plastic component includes a body having a first side surface and a second side surface facing away from the first side surface. The first side surface has a buffer recess recessed towards the second side surface. The buffer recess has at least one flow guide hole penetrating the body in a thickness direction of the body. The second side surface has a connection piece recess recessed towards the first side surface, and the connection piece recess has a pole through hole penetrating the body in the thickness direction of the body.

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: 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.