A battery includes a positive electrode plate, a negative electrode plate, and an electrolyte. The battery satisfies: and where V represents a viscosity of the electrolyte in mPa·s, PD represents a compaction density of the positive electrode sheet in g/c...

Disclosed are a tab welding structure and a battery. The tab welding structure includes a tab and a to-be-welded part, where the to-be-welded part is welded on the tab to form a connecting portion, a plurality of first welding mark structures that are conc...

The present disclosure provides a cover plate assembly and a battery. The cover plate assembly is mounted on a shell with an accommodation cavity, and includes: a cover plate, provided with a first mounting hole in communication with the accommodation cavi...

Provided are a core cell stack assembly and a stacking method therefor, and a battery. The core cell stack assembly includes a positive electrode sheet, a negative electrode sheet, and a separator located between the positive electrode sheet and the negati...

The present disclosure provides an electrode plate die-cutting method and an electrode plate die-cutting device. The electrode plate die-cutting method includes: conveying an electrode plate material strip in a first direction to a cutting area of an elect...

The present disclosure provides a bonding structure, a bonding method, an insulating adhesive tape, and a battery. The insulating adhesive tape includes a first bonding area and a second bonding area disposed at intervals, and a non-bonding area disposed b...

A battery shell, a single battery cell, and a battery pack are provided. The battery shell includes: a battery shell body, wherein the battery shell body is provided with an opening; and a top cover body, wherein the top cover body is covered on the batter...

An electrode sheet, a battery cell, and a battery are provided. The electrode sheet includes an electrode sheet body. The electrode sheet body includes a first side edge and a second side edge connected. A connection position between the first side edge an...

A battery cover includes a top cover assembly and an insulating support. The top cover assembly can be fixedly connected with a case to form an accommodation space for accommodating a core, and the top cover assembly can be welded with a tab on the core. T...