Secondary battery and electronic apparatus

An electronic apparatus, comprising a secondary battery;

• wherein the secondary battery comprises a negative electrode plate and an electrolyte solution, wherein the electrolyte solution comprises a sulfonyl compound, and the sulfonyl compound comprises at least one selected from the group consisting of a compound of Formula I and a compound of Formula II;
• wherein
• a chemical formula of the compound of Formula I is:
• and
• the chemical formula of the compound of Formula II is:
• wherein, R1 is selected from a fluorine atom and a C1 to C5 alkyl group, the C1 to C5 alkyl group is entirely or partially substituted by fluorine, R2 and R3 are each independently selected from a C1 to C5 alkyl group, R2 and R3 are capable of being connected into a ring through a single bond, and R4 is selected from an unsubstituted or fluorine-substituted C1 to C5 alkyl group;
• based on a mass of the electrolyte solution, a mass percentage of the sulfonyl compound is W1%, and 10≤W1≤90;
• and
• the negative electrode plate comprises a negative electrode current collector and a negative electrode material layer disposed on at least one surface of the negative electrode current collector, the negative electrode material layer comprises carbon nanotube clusters and silicon-based particles, each carbon nanotube cluster comprises multiple carbon nanotubes, an average diameter of the carbon nanotube clusters is in the range of D μm, and 0.2≤D≤6.5.