A battery cell, comprising: a housing; two electrode assemblies configured to be accommodated in the housing, an electrode assembly of the two electrode assemblies comprises a positive plate and a negative plate, and the positive plate and the negative plate are stacked and winded around a winding axis; the electrode assembly comprises an abutting region configured to abut against the housing and a non-abutting region not abutting against the housing at two sides of a thickness central surface of the electrode assembly, and the thickness central surface is perpendicular to a thickness direction and passes through the winding axis, the two electrode assemblies are arranged side by side along the thickness direction, and the abutting regions of the two electrode assemblies deviate from each other; the negative plate comprises a plurality of first negative active material layers located in the abutting region and stacked along the thickness direction, and a plurality of second negative active material layers located in the non-abutting region and stacked along the thickness direction; the positive plate comprises a plurality of first positive active material layers located in the abutting region and stacked along the thickness direction, and a plurality of second positive active material layers located in the non-abutting region and stacked along the thickness direction; an active material capacity per unit area of the first negative active material layer is greater than that of the second negative active material layer; and/or, an active material capacity per unit area of the first positive active material layer is less than that of the second positive active material layer. a housing; two electrode assemblies configured to be accommodated in the housing, an electrode assembly of the two electrode assemblies comprises a positive plate and a negative plate, and the positive plate and the negative plate are stacked and winded around a winding axis; the electrode assembly comprises an abutting region configured to abut against the housing and a non-abutting region not abutting against the housing at two sides of a thickness central surface of the electrode assembly, and the thickness central surface is perpendicular to a thickness direction and passes through the winding axis, the two electrode assemblies are arranged side by side along the thickness direction, and the abutting regions of the two electrode assemblies deviate from each other; the negative plate comprises a plurality of first negative active material layers located in the abutting region and stacked along the thickness direction, and a plurality of second negative active material layers located in the non-abutting region and stacked along the thickness direction; the positive plate comprises a plurality of first positive active material layers located in the abutting region and stacked along the thickness direction, and a plurality of second positive active material layers located in the non-abutting region and stacked along the thickness direction; an active material capacity per unit area of the first negative active material layer is greater than that of the second negative active material layer; and/or, an active material capacity per unit area of the first positive active material layer is less than that of the second positive active material layer.