| abstract |
PROBLEM TO BE SOLVED: To provide an alkaline secondary battery having good overcharge resistance, high charge / discharge efficiency and long cycle life. SOLUTION: A cobalt element containing one or more elements selected from lithium, potassium, manganese, aluminum, zinc, magnesium, molybdenum, tungsten, vanadium, and titanium at 0.5 atomic% to 10 atomic%. A compound having one or more elements selected from nickel and oxygen and having higher conductivity than nickel hydroxide, or at least one transition metal element selected from molybdenum, tungsten, vanadium, and titanium A powder material composed of nickel hydroxide containing 1 to 30% by weight of nickel nickel hydroxide coated with a compound having higher conductivity than nickel hydroxide composed of oxygen element and hydrogen element, and the powder material Electrode structure for alkaline secondary battery, and secondary battery using the electrode structure as a negative electrode pond. [Selection] Figure 1 |