Active explosion suppression device for lithium ion battery

The invention discloses an active explosion suppression device for a lithium ion battery, and relates to the technical field of lithium ion battery explosion suppression, the active explosion suppression device comprises a temperature control cracking explosion suppression sheet used for wrapping the lithium ion battery and attached to the lithium ion battery; the temperature control cracking explosion suppression sheet comprises a shell, a first storage cavity and a second storage cavity, wherein the first storage cavity and the second storage cavity are arranged in the shell. The first storage cavity is separated from the second storage cavity through a middle separation layer. An explosion suppression agent is arranged in the first storage cavity, and a biodegradable agent is arranged in the second storage cavity; the first storage cavity and the second storage cavity are distributed in the non-thickness direction of the temperature control cracking explosion suppression sheet; the shell and the middle sep