CELL, BATTERY, AND ELECTRIC DEVICE

A cell includes an electrode assembly and an electrode terminal. The electrode assembly includes a top and a bottom. The electrode terminal is configured to connect to the top. The electrode assembly is formed by winding or stacking, and the electrode assembly includes N layers of separators, N being a natural number greater than or equal to 3. Each layer of separator includes a first extension portion extending out of the bottom along the first direction. The N layers of first extension portions are arranged along a second direction. Along the second direction, the first extension portion of the first layer to the first extension portion of the (N−1)-th layer are bent, with adjacent ones of the first extension portions connected. The separator includes a second extension portion extending out of the top. The second extension portion is configured to connect to the electrode terminal.