ELECTRODE ASSEMBLY AND MANUFACTURING METHOD THEREFOR, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

The present application relates to the technical field of batteries, and provides an electrode assembly and a manufacturing method therefor, a battery cell, a battery, and an electric device. The electrode assembly comprises a positive electrode sheet and a negative electrode sheet. The positive electrode sheet is provided with first bent sections and a plurality of first straight sections, and every two adjacent first straight sections are connected by means of the first bent section. The negative electrode sheet is provided with second bent sections and a plurality of second straight sections, and every two adjacent second straight sections are connected by means of the second bent section. The first straight sections and the second straight sections are alternately stacked in a first direction, the first bent section is located at one end of the first straight section in a second direction, the second bent section is located at one end of the second straight section in a third direction, and the first dire