Novel battery with flame retardant

The utility model relates to the technical field of batteries, in particular to a novel battery with flame retardant, which comprises a box body, a first lithium battery and a second lithium battery are sequentially arranged in the box body from right to left, a filling groove is arranged between the first lithium battery and the second lithium battery, and a mounting groove is arranged on the inner side wall of the box body; and the bottom plate is mounted in the mounting groove, the bottom plate and the mounting groove are matched with each other, an intumescent flame retardant is arranged in the filling groove, and a bottom groove is formed in the bottom end of the bottom plate. According to the utility model, more intumescent flame retardants can be stored through the bottom groove, and when the intumescent flame retardants are heated to 100 DEG C, acidic substances can be generated, so that thermal decomposition of a matrix polymer is promoted, non-combustible gas is generated, a three-dimensional space