Abstract: A battery cell includes an electrode assembly and a packaging bag for accommodating the electrode assembly, where the battery cell further includes a first adhesive layer and a second adhesive layer, and the first adhesive layer is adhered to a side of the electrode assembly; and the second adhesive layer is disposed on an outermost surface of the electrode assembly to bond the packaging bag and the electrode assembly, and the first adhesive layer is disposed between the electrode assembly and the second adhesive layer. A battery is further provided, including a housing and the foregoing battery cell, where the battery cell is accommodated in the housing.

Abstract: A battery cell includes an electrode assembly and a packaging bag for accommodating the electrode assembly and a first adhesive layer and a second adhesive layer. One end of the first adhesive layer and one end of the second adhesive layer are both adhered to the first surface of the electrode assembly, and the other end of the first adhesive layer and the other end of the second adhesive layer both extend to the bottom of the electrode assembly and are adhered to a second surface opposite the first surface, a surface on which a terminating end of the electrode assembly is defined as the first surface; and a third adhesive layer, one end of the third adhesive layer is adhered to the first adhesive layer, and the other end of the third adhesive layer is adhered to the second adhesive layer.

Abstract: An electrochemical apparatus includes a first electrode plate and a first tab. The first electrode plate includes a current collector and an active material layer disposed on the current collector. The current collector includes a first surface, a first side and a second side opposite to the first side; the first surface is provided with a first blank region and the first tab is electrically connected to the first blank region and protrudes from the first side. A first tab adhesive is provided on the first tab, where the first tab adhesive includes a first adhesive layer, and the first adhesive layer includes a third side facing toward the second side. A minimum distance D1 mm between the third side and the second side and a distance W mm between the first side and the second side satisfy D1<W.

Abstract: An electrode assembly including a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate. The separator includes an extension portion extending to the outside of the first electrode plate and the second electrode plate in a length direction of the electrode assembly. The extension portion is provided with a glue layer including a first bonding portion extending in a width direction of the electrode assembly. The first bonding portion is parallel to the width direction.

Abstract: An electrode assembly including a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate. The separator includes an extension portion extending to the outside of the first electrode plate and the second electrode plate in a length direction of the electrode assembly. The extension portion is provided with a glue layer including a first bonding portion extending in a width direction of the electrode assembly. The first bonding portion is parallel to the width direction.

Abstract: Embodiments of the present application provide an electrode assembly including a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate. The separator includes an extension portion extending to the outside of the first electrode plate and the second electrode plate in a length direction of the electrode assembly. The extension portion is provided with a glue layer including a first bonding portion extending in a width direction of the electrode assembly. The first bonding portion is parallel to the width direction. Embodiments of the present application further provide a battery. The electrode assembly and battery provided in the present application will at least reduce the risk of short circuit of the electrode assembly.

Abstract: The embodiments of present application provides an electrode assembly and a battery comprising a first current collector including a first end portion, a first bending segment, a first starting segment therebetween; a second current collector including a second end portion, a second bending segment, a second starting segment therebetween; the first and second bending segments are regions where the first and second current collectors are bent for the first time respectively, and a first and second electrode tabs are respectively arranged on the first and second starting segments, a distance between the first electrode tab and the first end portion is smaller than a distance between the first electrode tab and the first bending segment, a distance between the second electrode tab and the second end portion is greater than a distance between the second electrode tab and the second bending segment.

Abstract: The embodiments of present application provides an electrode assembly and a battery comprising a first current collector including a first end portion, a first bending segment, a first starting segment therebetween; a second current collector including a second end portion, a second bending segment, a second starting segment therebetween; the first and second bending segments are regions where the first and second current collectors are bent for the first time respectively, and a first and second electrode tabs are respectively arranged on the first and second starting segments, a distance between the first electrode tab and the first end portion is smaller than a distance between the first electrode tab and the first bending segment, a distance between the second electrode tab and the second end portion is greater than a distance between the second electrode tab and the second bending segment.

Abstract: Embodiments of the present application provide an electrode assembly including a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate. The separator includes an extension portion extending to the outside of the first electrode plate and the second electrode plate in a length direction of the electrode assembly. The extension portion is provided with a glue layer including a first bonding portion extending in a width direction of the electrode assembly. The first bonding portion is parallel to the width direction. Embodiments of the present application further provide a battery. The electrode assembly and battery provided in the present application will at least reduce the risk of short circuit of the electrode assembly.

Abstract: The present application provides an electrode assembly comprising a body and a separator extension formed by a separator extending from the body, wherein the separator extension includes a first extension and a second extension, the second extension including a first stack portion and a second stack portion, the second stack portion being folded over onto the first stack portion. The present application further provides a battery and a packaging method of separator of the electrode assembly. The purpose of the present application is to provide an electrode assembly, a battery and a packaging method of electrode assembly separator, which can solve the problem of separator shrinkage during the falling process.