Summary of the technology ¤· This technology relates to nickel hydrogen batteries with improved charging efficiency and extended lifespan. ¤· The nickel hydrogen batteries of this technology relates to a technology including a cathode having hydrogen-storing alloy in which the amount of La ranges from 25 to 80 wt%; and an anode having hydration nickel which is coprecipitated or has its surface improved by additives including Co, Zn, Ca and Mg.