Alkaline battery
OwnerFumio Kato, Katsuya Sawada +3inventors
InventorsFumio Kato, Katsuya Sawada, Tadaya Okada, Yasuo Mukai, Shigeto Noya
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Abstract
Disclosed is an alkaline battery including a positive electrode, a negative electrode and an alkaline electrolyte, (1) the positive electrode having a positive electrode material mixture containing electrolytic manganese doxide and nickel oxyhydroxide, (2) the nickel oxyhydroxide having a crystal in which at least Mg is dissolved, and (3) the nickel oxyhydroxide having a tap density determined after 500 taps of not less than 2 g/cm3, an average particle size based on volume of 8 to 20 μm, and an average nickel valence of 2.95 to 3.05.
Claims10
An alkaline battery comprising a positive electrode, a negative electrode and an alkaline electrolyte, said positive electrode including a positive electrode material mixture containing electrolytic manganese dioxide and nickel oxyhydroxide,
- wherein said nickel oxyhydroxide comprises a crystal in which at least Mg is dissolved, and has a tap density determined after 500 taps of not less than 2 g/cm3, an average particle size based on volume of 8 to 20 μm, and an average nickel valence of 2.95 to 3.05.
An alkaline battery comprising a positive electrode, a negative electrode and an alkaline electrolyte,
- said positive electrode comprising a positive electrode material mixture containing electrolytic manganese dioxide and nickel oxyhydroxide,
- wherein said nickel oxyhydroxide comprises a crystal in which at least Mg as the essential component and at least one element M selected from the group consisting of Co, Zn and Mn are dissolved, and
- said nickel oxyhydroxide has a tap density determined after 500 taps of not less than 2 g/cm3, an average particle size based on volume of 8 to 20 μm, and an average nickel valence of 2.95 to 3.05.
Dependencies are inferred from the claim text.