Electrolytic manganese dioxide for lithium primary battery, production method thereof and lithium primary battery using the same

摘要

Electrolytic manganese dioxide for lithium primary batteries has a sodium content of 0.05 mass% or more and 0.2 mass% or less, and a pH of 5 or more and 7 or less when measured by the JIS-K-1467 method. It is characterized by that. By using such electrolytic manganese dioxide as the positive electrode active material, it is possible to provide a lithium primary battery not only excellent in initial discharge characteristics but also excellent in long-term discharge characteristics.