SECONDARY BATTERY, PROCESS FOR PREPARING THE SAME AND APPARATUS CONTAINING THE SECONDARY BATTERY

The present application relates to a secondary battery, a process for preparing the same and an apparatus containing the same. In particular, the secondary battery comprises a negative electrode plate, and the negative electrode plate comprises a negative current collector and a negative electrode film, wherein the negative electrode film comprises a first negative electrode film and a second negative electrode film, the first negative electrode film is disposed on at least one surface of the negative current collector and comprises a first negative electrode active material; the second negative electrode film is disposed on the first negative electrode film and comprises a second negative electrode active material, and the second negative electrode active material comprises secondary particles, a number percentage of which is greater than or equal to 20%, wherein the first negative electrode active material comprises natural graphite and the second negative electrode active material comprises artificial graphite.