METHOD FOR PRODUCING MANGANESE DIOXIDE FOR CATHODES OF LITHIUM CURRENT SOURCES

摘要

The proposed method for producing manganese dioxide for cathodes of lithium current sources implies the oxidation of manganese nitrate by sodium chlorate in nitric acid medium with heating, the following isolation of manganese dioxide from the reaction mix, and thermal treatment of the obtained material. The concentration of nitric acid in the oxidation process is 38 ... 44 % at the start of the process and 23 ... 26 % at the end of the process. The specific weight of the manganese dioxide so obtained is 2.5 ... 2.9 kg/dm3, the particle dimension is from 1 ... 3 ?m to 2.9 ?m, the specific conductivity is no less than 3.4 Sm/m.