An electrochemical device includes a housing, an electrode assembly, a first tab, a second tab, and a third tab. The first tab and the second tab are connected to the first electrode plate. A protruding part of the second tab out of the housing is connecte...

A battery cell includes an electrode assembly, where the electrode assembly is configured as a wound structure; and an accommodating component, where an installation space for accommodating the electrode assembly is provided in the accommodating component;...

An electrode plate assembly includes an electrode plate and a tab. An electrode plate includes a first surface and a second surface that are disposed opposite to each other along a thickness direction of the electrode plate. The tab is disposed on the firs...

An electrode assembly is a stacked structure. The electrode assembly includes a first electrode plate group and a second electrode plate group stacked up. A dimension of the first electrode plate group along the first direction is smaller than a dimension ...

A negative electrode includes: a negative electrode current collector and a negative electrode active material layer located on at least one surface of the negative electrode current collector. The negative electrode active material layer includes a negati...

An electrochemical device includes a negative electrode sheet. The negative electrode sheet includes a current collector, a first coating layer, and a second coating layer. The first coating layer is located between the current collector and the second coa...