Alkaline battery positive electrode additive composition and preparation method thereof

The present invention discloses an alkaline battery positive electrode additive composition and a preparation method thereof, and belongs to the technical field of lithium ion batteries, the alkaline battery positive electrode additive composition comprises manganese dioxide, a barium source compound, an alkaline electrolyte and lithium stearate, the sinter powder of the manganese dioxide and the barium source compound is used as an additive, the discharge performance of the battery is improved, the gas evolution amount is significantly reduced, and the service life of the battery is prolonged. The safety performance of the battery is improved, the high-temperature storage performance of the battery is improved, and the high-temperature storage performance of the battery can be improved by adding the lithium stearate; under the condition that the internal structure of the battery is not changed, the alkaline manganese battery prepared by adopting the developed alkaline battery positive electrode additive has