The object of the present invention is to provide electrolytic manganese dioxide excellent in the middle rate discharge characteristic as compared with conventional electrolytic manganese dioxide, and a method for its production and its application. [0002]...

The invention provides electrolytic a manganese dioxide with a BET specific surface area of 20 to 60 m 2 /g, and a volume of at least 0.023 cm 3 /g for pores with pore diameters of 2 to 200 nm. Also provided is a method for producing an electrolytic mangan...

There is provided manganese oxide having a pore volume fraction of no greater than 20% for pores with diameters of 10 µm or greater, as measured by mercury porosimetry, and a tap density of 1.6 g/cmor greater, and a method for producing it. There is also ...

An object of the present invention is to provide electrolytic manganese dioxide to be used as a cathode active material for an alkali-manganese dry cell, which has a high alkali potential and is provided with a high reactivity and packing efficiency as a c...

A subject for the invention relates to providing a positive active material for lithium ion secondary batteries which attains a high discharge capacity and is excellent in rate characteristics and cycle characteristics. [0002] A feature of the invention re...

Lithium manganese composite oxide granular secondary particles are formed by agglomerating crystalline primary particles of a lithium manganese composite oxide. Open pores of micrometer size are present in the granular secondary particles. The average diam...

A novel poly(arylene ether sulfone) having a sulfoalkoxy group, which has both of heat resistance and electroconductivity, is suitable as polymer electrolyte membranes used for high performance polymer electrolyte fuel cells, and does not use fluorine so t...

A lithium-manganese complex oxide represented by a formula Li[MnLiM]O(wherein M is at least one element selected from the groups IIa, IIIb and VIII of the 3rd and 4th periods, and 0.02 ≤ X ≤ 0.10, 0.05 ≤ Y ≤ 0.30 and -0.2 ≤ δ ≤ 0.2), having a ...

A powder of electrolytic manganese dioxide and a process for producing the same are disclosed. The powder has a maximum particle diameter of 100 µm or smaller, a content of 1 µm and smaller particles of lower than 15% by number, and a median diameter of ...