Secondary battery, process for preparing the same and apparatus containing the secondary battery

A secondary battery comprising a negative electrode plate, wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode film, and 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 electrode 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,
• the first negative electrode active material comprises natural graphite and satisfies:
• 0.60≤S1≤0.85, where S1=W2H/(W3R+W2H);
• and
• the second negative electrode active material comprises artificial graphite,
• in which W3R is a peak area of 101 crystal plane in a X-ray diffraction spectrum of the first negative electrode active material at a diffraction angle of 43.3±0.05°, and W2H is a peak area of 101 crystal plane in a X-ray diffraction spectrum of the first negative electrode active material at a diffraction angle of 44.5±0.05°.