A cell fixing apparatus includes a first shell element, a second shell element, and a plurality of pressure-adding beams. The first shell element and the second shell element are relatively fixedly connected, the first shell element and the second shell element are disposed at intervals in a first direction, so that an accommodating cavity is provided between the first shell element and the second shell element, and the accommodating cavity is configured to accommodate the cell. The plurality of pressure-adding beams may be disposed on a surface of the first shell element that is away from the second shell element. The plurality of pressure-adding beams may include a first-type beam and a second-type beam. A size of the first-type beam in the first direction is greater than that of the second-type beam. The pressure-adding beams are used to limit deformation of the cell in the accommodating cavity.

A battery pack case for a vehicle includes: a lower panel having a battery pack seated to support a lower surface of the battery pack; a recessed part formed on an upper surface of the lower panel and having a groove shape indented downward to extend; and an insulating sheet extending along the recessed part and attached to the recessed part to insulate between the lower panel and the battery pack at a point where the recessed part is formed.

A battery pack case for a vehicle includes: a lower panel having a battery pack seated to support a lower surface of the battery pack; a recessed part formed on an upper surface of the lower panel and having a groove shape indented downward to extend; and an insulating sheet extending along the recessed part and attached to the recessed part to insulate between the lower panel and the battery pack at a point where the recessed part is formed.

The present disclosure relates to a battery pack and an apparatus using the battery pack as a power supply, and relates to the technical field of batteries, to optimize performance of the battery pack. The battery pack includes a box body, a battery module, a module electrical connection piece, and a first protecting assembly. The battery module is mounted in the box body, and the battery module includes an anti-explosion assembly. The module electrical connection piece is mounted on the battery module. The first protecting assembly is mounted in the box body and is configured to protect the module electrical connection piece when an ejecta discharged from the anti-explosion assembly impacts the module electrical connection piece. The above technical scheme reduces probability of secondary short circuit of the battery pack.

An energy storage apparatus includes an energy storage device, a spacer disposed adjacent to the energy storage device, and an outer case which accommodates the energy storage device and the spacer. The spacer includes a projecting portion which projects from a bottom surface of the energy storage device. An inner surface of the outer case which faces a bottom surface of the energy storage device is provided with an accommodating portion which accommodates the projecting portion, and a placement surface portion which is disposed adjacent to the accommodating portion in an arrangement direction of the spacer and the energy storage device and on which the bottom surface of the energy storage device is placed.

An energy storage apparatus includes an energy storage device, a spacer disposed adjacent to the energy storage device, and an outer case which accommodates the energy storage device and the spacer. The spacer includes a projecting portion which projects from a bottom surface of the energy storage device. An inner surface of the outer case which faces a bottom surface of the energy storage device is provided with an accommodating portion which accommodates the projecting portion, and a placement surface portion which is disposed adjacent to the accommodating portion in an arrangement direction of the spacer and the energy storage device and on which the bottom surface of the energy storage device is placed.

A method for manufacturing a secondary battery includes: an accommodating process of accommodating an electrode assembly in a battery case so that an electrode lead connected to the electrode assembly protrudes to both sides of the outside of the battery case; a sealing process of sealing an outer circumferential surface of the battery case after the accommodating process; a coupling process of coupling a coupling clip to the electrode lead after the sealing process; and a transfer process of transferring the cell to a position for a next process after a gripper grips the coupling clip after the coupling process.

A method for manufacturing a secondary battery includes: an accommodating process of accommodating an electrode assembly in a battery case so that an electrode lead connected to the electrode assembly protrudes to both sides of the outside of the battery case; a sealing process of sealing an outer circumferential surface of the battery case after the accommodating process; a coupling process of coupling a coupling clip to the electrode lead after the sealing process; and a transfer process of transferring the cell to a position for a next process after a gripper grips the coupling clip after the coupling process.

Disclosed is an insulating film, a battery cell, a battery, a method for preparing a battery cell, a device for preparing a battery cell, and an electrical device, wherein the insulating film includes a bottom coverage region and a plurality of alternately arranged first side coverage regions and second side coverage regions; the plurality of first side coverage regions and second side coverage regions are all located on the same side of the bottom coverage region; the first side coverage region includes a bottom masking portion and two side overlapping portions stacked on the bottom masking portion; a first guide groove is formed at the junction of the bottom masking portion and the side overlapping portion, a second guide groove corresponding to the first guide groove is arranged on the side overlapping portion, the second guide groove intersects with the first guide groove, and is set to incline downward.

Disclosed is an insulating film, a battery cell, a battery, a method for preparing a battery cell, a device for preparing a battery cell, and an electrical device, wherein the insulating film includes a bottom coverage region and a plurality of alternately arranged first side coverage regions and second side coverage regions; the plurality of first side coverage regions and second side coverage regions are all located on the same side of the bottom coverage region; the first side coverage region includes a bottom masking portion and two side overlapping portions stacked on the bottom masking portion; a first guide groove is formed at the junction of the bottom masking portion and the side overlapping portion, a second guide groove corresponding to the first guide groove is arranged on the side overlapping portion, the second guide groove intersects with the first guide groove, and is set to incline downward.