| abstract |
A manganese trioxide having a high reactivity with a lithium compound and excellent handling properties and suitable as a manganese raw material for a lithium manganese composite oxide and a production method thereof are provided. Wherein the primary particles of the manganese trioxide having an average primary particle diameter of not more than 2 占 퐉 are agglomerated and the pore volume of the pores is not less than 0.4 ml / g. It is preferable that the innate pores are pores having a diameter of 5 占 퐉 or less. Yi four and trioxide, manganese particles, a method for manufacturing a four trioxide, manganese particles having a crystallization step of direct crystallization trioxide manganese yarn from the manganese aqueous solution, according to the art crystallization processes, oxidation-reduction potential of more than 0 ㎷, also OH - / Mn 2+ (mol / mol) is 0.55 or less, a slurry is obtained by mixing an aqueous solution of a manganese salt and an aqueous alkali solution, and the solid concentration of the slurry is adjusted to 2% by weight or less. |