Lithium ion battery discharge protection circuit

The utility model discloses a lithium ion battery discharge protection circuit, which comprises a grid frame and a lithium ion battery placed in the grid frame, a plurality of first heat conduction plates are arranged in the grid frame, a plurality of first heat conduction columns are fixedly connected to the bottom surfaces of the first heat conduction plates, and the lithium ion battery is placed on the plurality of first heat conduction plates; the top of the grid frame is of an opening structure, a grid plate is installed at the opening of the top of the grid frame, a plurality of second heat conduction columns are fixedly connected to the bottom face of the grid plate, and the other ends of the second heat conduction columns are fixedly connected with a second heat conduction plate. When the lithium ion battery discharges and emits heat, heat of the lithium ion battery can be transmitted to the first heat conducting plate, the second heat conducting plate, the grid frame and the grid plate, the contact a