Abstract: It studies the effect of different alloy powder and electrolyte amounts on the discharging capacities,internal resistance,over charge performance and heavy current(4A) discharging performance of the nickel hydrogen battery.Experimental results show that the impact of cobalt contents of alloy on internal resistance is not big.1 C discharging capacities of cobalt contents 6.0% of alloy powder is higher than that of 5.5%,but the over-charge performance and the heavy current(4A) discharging performa...

Key words: nickel hydrogen battery； electrolyte； alloy powder； electrochemical performance；