To provide a nickel hydrogen storage battery which has high capacity, excellent cycle performance, and an excellent high-rate discharge characteristic, and an efficient manufacturing method of the nickel hydrogen storage battery which allows rapid initial activation.
This nickel hydrogen storage battery includes a positive electrode which has a higher order cobalt compound on its surface and has active material powder with nickel hydroxide as the main ingredient, and a negative electrode which has active material powder consisting of hydrogen storage alloy, the active material powders being bound by the higher order cobalt compound. The manufacturing method of the nickel hydrogen storage battery comprises performing over-discharge at least once in the course of the initial activation in which charge/discharge operation is performed repeatedly.
COPYRIGHT: (C)2003,JPO
Yoshikatsu Otani
Hiroaki Mori
Toshiyuki Maezawa
| JP200012011A | ||||
| JP2001102085A | ||||
| JP8153543A |