| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent capacity drop after charge-discharge cycle is repeated, by suppressing the generation of Ni<SB POS="POST">2</SB>O<SB POS="POST">3</SB>H in a nickel positive electrode. <P>SOLUTION: In the alkaline storage battery 10, the ratio X/Y is 15 or greater where X and Y are the length and the height of a nickel positive electrode 11, respectively. Under the charge-discharge condition in which charge of the amount of charge of the battery to target SOC without full charge of battery capacity under the current value condition in which current density is 100 It/m<SP POS="POST">2</SP>or less, and/or discharge to target SOC without complete discharge are performed, after charge and discharge are repeated until the total discharge quantity of electricity reaches 10 kAh, internal resistance is regulated to be 114% or less of the initial value and Ni<SB POS="POST">2</SB>O<SB POS="POST">3</SB>H is regulated not to exist at the surface of the nickel positive electrode and the abundance ratio of Ni<SB POS="POST">2</SB>O<SB POS="POST">3</SB>H in the nickel positive electrode is regulated to be 40% or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
