BATTERY

原文（中文）

A battery includes an electrode assembly, an electrolytic solution, a package accommodating the electrode assembly, a first tab, a second tab, and a first filler. The electrode assembly is formed by winding a first electrode plate and a second electrode plate stacked. The first current collector includes a first blank region, a first single-surface-coated region, and a first double-surface-coated region. The first blank region includes a first planar region and a first bent region. The first single-surface-coated region includes a second bent region and a second planar region. The first tab is disposed in the first planar region. The second tab is disposed on the second electrode plate. The first filler is disposed in the first planar region or the second planar region. Projections of the first filler, the first tab, and the second tab in a thickness direction of the electrode assembly do not overlap.