The disclosure relates to the technical field of batteries, and provides a battery manufacturing method, a battery, a battery module, and a battery pack. The battery manufacturing method includes following steps. Providing an insulating mylar, laminating on the insulating mylar to form a laminated cell that includes a separator film different from the insulating mylar, and wrapping the laminated cell with the insulating mylar. By laminating on the insulating mylar to form the laminated cell and then wrapping the laminated cell with the insulating mylar, a process of moving the laminated cell to the insulating mylar is omitted.

The disclosure relates to the technical field of batteries, and provides a battery manufacturing method and a battery. The battery manufacturing method includes the following steps. Providing a first casing that includes one of an upper cover and a bottom plate of a battery casing, and laminating on the first casing to form a laminated cell.

The secondary battery disclosed herein includes: a battery case; an electrode body accommodated in the battery case; a resin-cured product with which a space between the electrode body and a bottom of the battery case is filled and which is cured; an electrolyte accommodated in the battery case. A thermal conductivity of the resin-cured product is 0.2 W/(m.Math.K) or more.

An electrode assembly includes: a plurality of positive electrodes and a plurality of negative electrodes, alternately and repeatedly stacked; a separator between the positive electrodes and the negative electrodes, respectively, to protrude from the positive electrodes and the negative electrodes and stacked such that surfaces at edges of the separator face each other; and a fixing member including an adhesive layer adhered to the surfaces of the separator.

Provided are an electrode structure and an all-solid secondary battery including the electrode structure, the electrode structure including a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer, the cathode layer including a cathode current collector and a cathode active material layer on at least one surface of the cathode current collector, the anode layer including an anode current collector and an anode active material layer on at least one surface of the anode current collector, and the solid electrolyte having a margin of about 2% or less of a width of the solid electrolyte layer, at two ends in a width direction, and an insulating layer having a storage elastic modulus (E′) of greater than about 4.0 GPa being at two sides integrally surrounding the cathode layer, the anode layer, and the solid electrolyte layer.

Embodiments of the present disclosure provide a battery cell, a battery, a power consumption device, and a device and a method for manufacturing a battery cell. The battery cell may comprise an electrode assembly, a housing, an end cover, and a first insulation structure. The electrode assembly may comprise a first tab. The housing may accommodate the electrode assembly, the housing may have an opening, and a first limiting structure may be formed on an inner circumferential wall of the housing. The end cover may cover the opening, and in a thickness direction of the end cover, the first limiting structure may limit movement of the end cover in a direction towards the electrode assembly. The first insulation structure may be at least partially provided between the first tab and the first limiting structure, so as to insulate and isolate the first tab from the first limiting structure.

A rechargeable battery according to an embodiment of the present invention includes: an electrode assembly in which a separator is disposed between a first electrode and a second electrode; a case having an opening on one side and accommodating the electrode assembly; and a cap assembly coupled to the opening so as to seal the case. The cap assembly includes: a cap plate coupled to the opening and provided with a terminal hole; a terminal plate disposed inside the terminal hole; and an insulating material, and also includes a sealing portion which covers a circumferential portion on the terminal hole side of the cap plate and a circumferential portion of the terminal plate so as to form a seal between the cap plate and the terminal plate.

A battery includes: a power generating element including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer; a structure located above a first main surface of the power generating element and having insulating properties; and a laminate film accommodating the power generating element and the structure, wherein a gap is located between the first main surface and the laminate film such that the gap is in contact with the structure.

A button-type secondary battery includes an electrode assembly including a first separator, a negative electrode, a second separator, and a positive electrode that are sequentially stacked and wound, wherein ends of the first separator and the second separator are disposed closer to a center of the wound electrode assembly than ends of the positive electrode and the negative electrode; an electrolyte; and a can in which the electrode assembly and the electrolyte are accommodated. In the electrode assembly, an expansion member is attached to at least one central end of the first separator or the second separator, and the expansion member is expanded by absorbing the electrolyte.

A button-type secondary battery includes an electrode assembly including a first separator, a negative electrode, a second separator, and a positive electrode that are sequentially stacked and wound, wherein ends of the first separator and the second separator are disposed closer to a center of the wound electrode assembly than ends of the positive electrode and the negative electrode; an electrolyte; and a can in which the electrode assembly and the electrolyte are accommodated. In the electrode assembly, an expansion member is attached to at least one central end of the first separator or the second separator, and the expansion member is expanded by absorbing the electrolyte.