Battery

Abstract

Battery, characterized in that the battery comprises a positive electrode foil, a negative electrode foil and an electrolyte solution; wherein the electrolyte solution comprises a fluorinated ethylene carbonate and a siloxane compound; wherein a contact angle of the negative electrode foil with a standard electrolyte solution is designated by a, where a unit of a is °; wherein, based on a total mass of the electrolyte solution of 100 wt.%, a mass fraction of the fluorinated ethylene carbonate in the electrolyte solution is designated by b and a mass fraction of the siloxane compound in the electrolyte solution is designated by c, where a unit of b and c is wt.%; wherein a, b and c satisfy the following relational formula: 0.002≤ba×c≤16; wherein the siloxane compound has the following structural formula: wherein R1, R2, R3 and R4 are each independently selected from a C1-C4 alkyl group or a C1-C4 alkenyl group; wherein R5 and R6 are each independently selected from a C1-C4 alkyl group.