Alkaline storage battery and method for manufacturing the same
AssigneeSanyo Electric Co., Ltd.
InventorsShigekazu Yasuoka, Yoshinori Yokoyama, Atsumu Imasato, Takaaki Ikemachi
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Abstract
The present invention provides an alkaline storage battery excellent in both charge properties and discharge properties. A novel alkaline storage battery is provided comprising an active positive electrode material containing nickel hydroxide as a main component and an alkaline electrolyte containing at least Li+ and Na+, characterized in that the positive electrode contains Y and/or Y compound and the alkaline electrolyte has an Li+ content of from not lower than 0.1 to less than 1.0 N and an Na+ content of from 0.3 to 1.5 N.
Claims8
An alkaline storage battery comprising:
- a sintered nickel electrode comprising a substrate and an active positive electrode material containing nickel hydroxide as a main component;
- an alkaline electrolyte containing at least Li+ and Na+, wherein said positive electrode contains Y and/or Y compound disposed on both a surface of said active material and a surface of the substrate of the sintered nickel electrode,
- wherein said alkaline electrolyte has an Li+ content of from not lower than 0.1 to less than 1.0 N and an Na+ content of from 0.3 to 1.5 N.
A process for the preparation of an alkaline storage battery comprising sintered nickel electrode containing nickel hydroxide as a main component and an electrolyte containing at least Li+ and Na+, wherein said sintered nickel electrode is formed by a process which comprises a dipping step of dipping a sintered nickel electrode in a salt containing yttrium and nickel so that it is filled with yttrium and an activating step of dipping said electrode in an aqueous alkaline solution.
A nickel-hydride battery comprising:
- a sintered nickel electrode comprising a substrate and an active positive electrode material containing nickel hydroxide as a main component;
- an alkaline electrolyte containing at least Li+ and Na+;
- and
- Y and/or Y compound disposed on both a surface of said active material and a surface of the substrate of the sintered nickel electrode,
- wherein said alkaline electrolyte has an Li+ content of from not lower than 0.1 to less than 1.0 N and an Na+ content of from 0.3 to 1.5 N.
Dependencies are inferred from the claim text.