SECONDARY BATTERY, PROCESS FOR PREPARING SAME, AND APPARATUS COMPRISING SECONDARY BATTERY

The present application discloses a secondary battery, a process for preparing the same, and an apparatus including the secondary battery. The secondary battery includes a negative electrode plate, and the negative electrode plate includes a negative electrode current collector and a negative electrode film; the negative electrode film includes a first negative electrode coating layer and a second negative electrode coating layer; the first negative electrode coating layer is disposed on at least one surface of the negative electrode current collector and includes a first negative electrode active material, the first negative electrode active material includes graphite, and the first negative electrode active material includes or does not include a silicon-based material; the second negative electrode coating layer is disposed on a surface of the first negative electrode coating layer and includes a second negative electrode active material, and the second negative electrode active material includes artificial graphite and a silicon-based material; the silicon-based material has a mass percentage denoted as W1 in the first negative electrode active material, the silicon-based material has a mass percentage denoted as W2 in the second negative electrode active material, and the negative electrode plate satisfies: W2 ≥ W1.