Abstract: A secondary battery including an electrode assembly, a tab assembly, and a packaging pouch. The electrode assembly is accommodated in the packaging pouch. The packaging pouch includes a sealing portion, the tab assembly includes tabs and insulating adhesives, and the tabs are connected to the electrode assembly and run through the sealing portion to extend out of the packaging pouch. The insulating adhesives are disposed on the tabs and connect the tabs and the packaging pouch. The insulating adhesive includes a first insulating adhesive layer, a second insulating adhesive layer, and a third insulating adhesive layer sequentially stacked in a first direction, the first insulating adhesive layer is connected to the tab, and the third insulating adhesive layer is connected to the packaging pouch.

Abstract: A battery includes a battery cell and a casing assembly for receiving the battery cell. The battery cell includes a first electrode tab. The battery further includes an insulating member and a conductive member, the insulating member is connected between the casing assembly and the conductive member. The casing assembly defines a first through hole, and the insulating member defines a second through hole connected to the first through hole. The first electrode tab is electrically connected to the conductive member. A power consuming device including the battery is further provided. The conductive member of the present disclosure substitutes for the terminal post of existing art, increasing the energy density of the battery.

Abstract: An electrochemical device includes a tab, a housing having a main body, and an electrode assembly accommodated in the main body. One end of the tab is connected to the electrode assembly. Another end of the tab extends out from a first lateral face of the main body. The housing includes a tail seal portion and a first side seal portion connected to a second lateral face and a third lateral face of the main body respectively; and a first connecting portion connecting the first side seal portion to the tail seal portion. The third lateral face is located between the second lateral face and the first lateral face. The tail seal portion and the first side seal portion are configured to be folded in a first direction and a second direction respectively.

Abstract: A battery, including a battery cell and a housing assembly accommodating the battery cell. The battery cell includes a first tab. The housing assembly includes a first housing body and a second housing body. The first housing body and the second housing body define an accommodation space to accommodate the battery cell. The first housing body and/or the second housing body include an installation portion provided with a via hole. A conductive member is disposed on an inner surface or an outer surface of the housing assembly and electrically connected to the first tab. In a through direction of the via hole, a projection of the conductive member is at least partially located in the via hole. The conductive member can avoid occupying internal space of the housing assembly, and increase the energy density of the battery. An electric device containing the battery is provided.

Abstract: 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.

Abstract: A secondary battery cell includes an anode electrode plate, an anode electrode tab, a cathode electrode plate, a cathode electrode tab, and a separator. A winding formation system of the secondary battery cell includes a working platform, a winding mechanism, an anode electrode plate unwinding roller, an anode electrode plate cleaning mechanism, an anode electrode plate die-cutting mechanism, an anode electrode tab supply mechanism, an anode electrode tab connection mechanism, an anode electrode plate convey mechanism, a cathode electrode plate unwinding roller, a cathode electrode plate cleaning mechanism, a cathode electrode plate die-cutting mechanism, a cathode electrode tab supply mechanism a cathode electrode tab connection mechanism, a cathode electrode plate convey mechanism, a first separator unwinding roller, a second separator unwinding roller, a first separator convey mechanism, and a second separator convey mechanism.

Abstract: A housing is disclosed, including an accommodating cavity, where a surface of the housing is provided with a groove, a thickness of an area provided with the groove in the housing is less than a thickness of an area provided with no groove in the housing, the housing further includes a protective layer, and the protective layer is disposed on the surface of the housing and covers an opening end of the groove. The groove helps discharge a pressure from the housing, and the protective layer can prevent the housing from being accidentally broken. This application further provides a battery to which the housing is applied, and an electronic apparatus to which the battery is applied.

Abstract: A secondary battery cell includes an anode electrode plate, an anode electrode tab, a cathode electrode plate, a cathode electrode tab and a separator. The secondary battery cell winding formation system includes a working platform, a winding mechanism, an anode electrode plate unwinding roller, an anode electrode plate cleaning mechanism, an anode electrode plate die-cutting mechanism, an anode electrode tab supply mechanism, an anode electrode tab connection mechanism, an anode electrode plate convey mechanism, a cathode electrode plate unwinding roller, a cathode electrode plate cleaning mechanism, a cathode electrode plate die-cutting mechanism, a cathode electrode tab supply mechanism a cathode electrode tab connection mechanism, a cathode electrode plate convey mechanism, a first separator unwinding roller, a second separator unwinding roller, a first separator convey mechanism and a second separator convey mechanism.

Abstract: A battery includes a casing assembly which includes a terminal post and a first casing. The first casing includes a first casing portion and a second casing portion connected to the first casing portion. The first casing portion protrudes from the second casing portion to define a receiving space. The terminal post is fixed to the first casing portion and partially received in the receiving space. A battery including the battery casing assembly is further provided.

Abstract: A battery includes a battery cell and a casing assembly for receiving the battery cell. The battery cell includes a first electrode tab. The battery further includes an insulating member and a conductive member, the insulating member is connected between the casing assembly and the conductive member. The casing assembly defines a first through hole, and the insulating member defines a second through hole connected to the first through hole. The first electrode tab is electrically connected to the conductive member. A power consuming device including the battery is further provided. The conductive member of the present disclosure substitutes for the terminal post of existing art, increasing the energy density of the battery.

Abstract: A battery includes a battery cell and a casing assembly for receiving the battery cell. The battery cell includes a first electrode tab. The battery further includes an insulating member and a conductive member, the insulating member is connected between the casing assembly and the conductive member. The casing assembly defines a first through hole, and the insulating member defines a second through hole connected to the first through hole. The first electrode tab is electrically connected to the conductive member. A power consuming device including the battery is further provided. The conductive member of the present disclosure substitutes for the terminal post of existing art, increasing the energy density of the battery.

Abstract: A battery includes a housing, a cover, a sealing member, a connecting member, a cell, and a pole. The pole includes a substrate and a lead-out portion disposed on the substrate, where the lead-out portion includes a first portion, a second portion, and a mounting hole. The second portion is connected to an end of the first portion away from the substrate. The mounting hole is connected to the first portion and the second portion, where an opening of the mounting hole is located in the second portion. In a direction parallel to the substrate, minimum cross-sectional area of the first portion is greater than maximum cross-sectional area of the second portion. The pole has the first portion and the second portion of different cross-sectional areas disposed on the lead-out portion so that the second portion can be more easily riveted and bent against the first portion during riveting.

Abstract: An electrode assembly, including a positive electrode plate, a negative electrode plate, a separator, a positive electrode tab. The positive electrode plate includes a positive electrode current collector and a positive electrode active substance layer, the negative electrode plate includes a negative electrode current collector and a negative electrode active substance layer disposed on surface of the negative electrode current collector. The positive electrode active substance layer is provided with a first groove. The negative electrode active substance layer is provided with a second groove, the second groove is corresponding to the first groove, the second groove extends along a thickness direction of the electrode assembly to the negative electrode current collector. The second groove is provided with a first protective adhesive inside, so as to ensure thickness consistency between the groove and a body zone of the electrode plate and reducing the risk of short circuit.

Abstract: An electrochemical device includes an electrode assembly, a packaging bag accommodating the electrode assembly, and electrode terminals connected to the electrode assembly. The packaging bag includes a first seal edge, a third seal edge, a first sidewall connected to the first seal edge, a second sidewall connected to the third seal edge, and a third sidewall. The first sidewall includes a first section connected to the second sidewall; and an arc-shaped second section connected to the third sidewall and the first section. The first seal edge includes a first hem connected to the first section and a second hem connected to the first hem. The first hem is disposed along the thickness direction of the electrode assembly. The second hem includes a first part and a second part. The second part is connected to the second section and the first part and abuts against the second section.

Abstract: A battery includes: a curved cell, having a first and second surfaces; a tab unit, connected to the cell and comprises a curved portion and a flat portion, the cell is curved along a direction perpendicular to an extending direction of the tab unit; and a package, including: a receiving portion and a flat encapsulating edge, the cell and the curved portion are received in the receiving portion, the receiving portion comprises a first receiving unit and a second receiving unit, radians of the first receiving unit and the second receiving unit are respectively matched with radian of the first surface and the second surface, and the flat portion is sealingly attached to the edge and penetrates outward from the edge. The battery provided by the embodiments of the present application has good cell reliability, and can realize the sealing attachment of the tab unit to the edge.

Abstract: A packaging layer including a protection layer, a metal layer, and a first packaging layer stacked in sequence. A melting point of the first packaging layer is 100° C. to 130° C. Further, a battery having such packaging layer and an electronic apparatus having such battery.

Abstract: The present disclosure provides a wound-type electrode assembly comprising a first and second electrode plates, a first and second electrode tabs, and a separator. The first and second electrode plates include a first current collector and active substance layer, and a second current collector and active substance layer. Two surfaces of the first current collector of the first winding start section of the first electrode plate are not coated with first active substance layer and defined as a first start blank current collector, the first start blank current collector is welded to a first electrode tab. The second pole piece comprises a second groove, a bottom of which is a second current collector and a circumference thereof is a second active substance layer; the second electrode tab is accommodated in the second groove and electrically connected to the second current collector at the second groove.

Abstract: 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.

Abstract: A secondary battery cell includes an anode electrode plate, an anode electrode tab, a cathode electrode plate, a cathode electrode tab and a separator. The secondary battery cell winding formation system includes a working platform, a winding mechanism, an anode electrode plate unwinding roller, an anode electrode plate cleaning mechanism, an anode electrode plate die-cutting mechanism, an anode electrode tab supply mechanism, an anode electrode tab connection mechanism, an anode electrode plate convey mechanism, a cathode electrode plate unwinding roller, a cathode electrode plate cleaning mechanism, a cathode electrode plate die-cutting mechanism, a cathode electrode tab supply mechanism a cathode electrode tab connection mechanism, a cathode electrode plate convey mechanism, a first separator unwinding roller, a second separator unwinding roller, a first separator convey mechanism and a second separator convey mechanism.

Abstract: The present invention provides a secondary battery. The secondary battery comprises a first electrode tab and a first electrode plate. The first electrode plate first electrode plate comprises a first current collector, a first active layer, a first electrode tab receiving groove and a first electrode plate notch. The first active layer is disposed on a surface of the first current collector. The first electrode tab receiving groove is configured to receive the first electrode tab, and the first electrode tab is electrically connected with the first current collector through the first electrode tab receiving groove. The first electrode plate notch is disposed on an edge of the first electrode tab receiving groove.