An electrochemical apparatus includes an electrode assembly, a first tab, and a second tab. The electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate includes a first current collector. The second elect...

An electrochemical device includes a housing, an electrode assembly, a first tab and a second tab. The electrode assembly includes a first electrode plate, a second electrode plate and a separator. The first electrode plate includes a first current collect...

A battery module (100) includes a housing assembly, a cell assembly (20), a circuit board (30), and a first connecting member (40). The housing assembly includes a first side wall (11) and a second side wall (12). The first side wall (11) is provided with ...