ELECTRODE ASSEMBLY, SECONDARY BATTERY, AND BATTERY-POWERED APPARATUS

An electrode assembly, a secondary battery, and a battery-powered apparatus. The electrode assembly includes a negative electrode plate, a positive electrode plate, and a separator, and the negative electrode plate, the separator, and the positive electrode plate are laminated and wound around a winding center, where the negative electrode plate includes a first inner layer section, the positive electrode plate includes a second inner layer section, and the first inner layer section and the second inner layer section are immediately adjacent to the winding center; and the first inner layer section is provided with a notch portion, and the first inner layer section is disposed opposite the second inner layer section through the notch portion.