A cover plate assembly, a battery, a battery module, a power battery pack, and an electric vehicle are disclosed. The cover plate assembly includes a cover plate body (1), a first electrode terminal (2), a second electrode terminal, and a resistive coating (3). The second electrode terminal is insulatively connected with the cover plate body (1). The first electrode terminal (2) is electrically connected with the cover plate body (1) by the resistive coating (3). The resistive coating (3) includes a weak portion (331). When a current flowing through the resistive coating (3) is greater than a predetermined threshold, the weak portion (331) is melted to disconnect the cover plate body (1) from the first electrode terminal (2).

A bus bar, which includes a metal bar made of an electrically conductive metal material; a bandage member configured to surround the metal bar except for both ends of the metal bar; and an insulating tube configured to surround the metal bar and the bandage member together, wherein the bandage member is made of a metal wire having a surface coated with a coating material having insulation and fire resistance.

An electrode assembly includes a first electrode plate. The first electrode plate includes a first current collector, a first active material layer and a first insulation layer. The first current collector includes a first surface and a second surface. The first surface and the second surface are provided opposite to each other. The first active material layer is provided on the first surface. The first insulation layer is located between the first current collector and the first active material layer.

An electrode assembly includes a first electrode plate. The first electrode plate includes a first current collector, a first active material layer and a first insulation layer. The first current collector includes a first surface and a second surface. The first surface and the second surface are provided opposite to each other. The first active material layer is provided on the first surface. The first insulation layer is located between the first current collector and the first active material layer.

An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a manufacturing device and method for a battery cell. The battery cell includes a housing, an electrode assembly, an end cover assembly and a current collecting member. The electrode assembly is accommodated in the housing, and the electrode assembly includes a tab. The end cover assembly includes an end cover, an electrode terminal and an insulating member, the end cover is used to cover at an opening of the housing, the electrode terminal is mounted to the end cover, and the insulating member is located on one side of the end cover facing the electrode assembly. The current collecting member is used to connect the electrode terminal and the tab. This structure can make more space for the electrode assembly and can effectively increase the capacity of the battery cell.

An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a manufacturing device and method for a battery cell. The battery cell includes a housing, an electrode assembly, an end cover assembly and a current collecting member. The electrode assembly is accommodated in the housing, and the electrode assembly includes a tab. The end cover assembly includes an end cover, an electrode terminal and an insulating member, the end cover is used to cover at an opening of the housing, the electrode terminal is mounted to the end cover, and the insulating member is located on one side of the end cover facing the electrode assembly. The current collecting member is used to connect the electrode terminal and the tab. This structure can make more space for the electrode assembly and can effectively increase the capacity of the battery cell.

A system for reducing the likelihood of a battery short during a collision of a vehicle includes a metallic structure coupled to a portion of the vehicle. The system further includes a battery located proximate to the metallic structure and having a positive terminal. The system further includes an insulator coupled to the metallic structure such that it is located between the metallic structure and the positive terminal of the battery and configured to resist contact between the metallic structure and the positive terminal of the battery in response to the collision of the vehicle.

A system for reducing the likelihood of a battery short during a collision of a vehicle includes a metallic structure coupled to a portion of the vehicle. The system further includes a battery located proximate to the metallic structure and having a positive terminal. The system further includes an insulator coupled to the metallic structure such that it is located between the metallic structure and the positive terminal of the battery and configured to resist contact between the metallic structure and the positive terminal of the battery in response to the collision of the vehicle.

An electricity storage device includes: an electrode body including at least one positive electrode plate, at least one negative electrode plate, and a separator. an insulating holder that is formed by folding a sheet made of an insulating material and accommodates therein the electrode body; an outer case which has an opening and accommodates therein the electrode body with the insulating holder and an electrolyte; and a sealing plate. The outer case has a bottom plate part and a plurality of side walls standing from the bottom plate part, and the opening is formed in a position to face the bottom plate part. The insulating holder has a plurality of side surface parts respectively facing the plurality of side walls, and a bottom surface part that faces the bottom plate part. At least one of the side surface parts or the bottom surface part has a bellow-folded structure.

An electricity storage device includes: an electrode body including at least one positive electrode plate, at least one negative electrode plate, and a separator. an insulating holder that is formed by folding a sheet made of an insulating material and accommodates therein the electrode body; an outer case which has an opening and accommodates therein the electrode body with the insulating holder and an electrolyte; and a sealing plate. The outer case has a bottom plate part and a plurality of side walls standing from the bottom plate part, and the opening is formed in a position to face the bottom plate part. The insulating holder has a plurality of side surface parts respectively facing the plurality of side walls, and a bottom surface part that faces the bottom plate part. At least one of the side surface parts or the bottom surface part has a bellow-folded structure.