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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsFumio Kato, Futoshi Tanigawa, Yoshitaka Dansui, Kohji Yuasa
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Disclosed is a positive electrode material which provides an alkaline storage battery having high active material utilization, wherein good capacity recovery can be obtained by charging even after standing in the state of overdischarge or short circuit, and reduction in capacity scarcely arises. This active material comprises nickel hydroxide particles and a cobalt oxide. The cobalt oxide is a higher cobalt oxide containing as a main component .gamma.-cobalt oxyhydroxide, which belongs to any one crystal system of hexagonal, orthorhombic and monoclinic systems and has a layered structure, wherein a lattice spacing of the (003) plane is from 5.5 to 7.0 angstroms and an average valence of cobalt is higher than 3.0. Those which are prepared by coating the surface of nickel hydroxide particles with the higher cobalt oxide are preferable.
A positive electrode material for alkaline storage batteries, comprising:
A positive electrode material for alkaline storage batteries, comprising:
A positive electrode material for alkaline storage batteries, comprising:
An alkaline storage battery comprising a positive electrode, a negative electrode, a separator, and an alkaline electrolyte, wherein said positive electrode comprising:
An alkaline storage battery comprising a positive electrode, a negative electrode, a separator, and an alkaline electrolyte, wherein said positive electrode comprising:
A method of producing a positive electrode material for alkaline storage batteries, said method comprising:
Dependencies are inferred from the claim text.