| 摘要 |
An alkaline dry battery including nickel oxyhydroxide and manganese dioxide as positive electrode active materials. The nickel oxyhydroxide is a solid solution including at least manganese and cobalt. The content of the manganese is 5.2x10<SUP>-2 </SUP>to 7.5x10<SUP>-2 </SUP>moles per mole of the nickel oxyhydroxide, and the content of the cobalt is 0.5x10<SUP>-2 </SUP>to 2.0x10<SUP>-2 </SUP>moles. The alkaline dry battery maintains excellent heavy-load discharge characteristics, exhibits suppressed polarization during heavy-load pulse discharge to improve the operational stability of digital devices, and has high reliability with respect to leakage resistance and safety under short-circuit conditions.
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