The mechanism of modification was researched in the process of roasting nature manganese dioxide. It is concluded that different structure of Mn2O3 results in the different discharge capacity of activating MnO2.

• 对轻质高品位二氧化锰原矿改性活化处理工艺的焙烧工艺改性机理作了初步探讨,得出焙烧产物中生成不同的Mn2O3晶型比例导致改性二氧化锰具有不同放电性能的结论。