METHOD OF PRODUCING B-TYPE TITANIUM DIOXIDE, AND NEGATIVE ELECTRODE ACTIVE MATERIAL AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE TITANIUM DIOXIDE

摘要

PROBLEM TO BE SOLVED: To provide B-type titanium dioxide having improved the stability of a crystal structure and the tap density.SOLUTION: MTiO(M=group I element, n=an integer of 3 or more) that is crushed to be 0.01 μm or more and 0.5 or less in average particle diameter is subjected to ion exchange and dehydration in order to produce B-type titanium dioxide.