Why lesser efficiency of lead acid with nickel iron?

1.	Why lesser efficiency of lead acid with nickel iron?
Answer» Jungner discovered that the main advantage over the nickel–cadmium CHEMISTRY was cost, but due to the lower efficiency of the charging reaction and more pronounced formation of HYDROGEN (gassing), the nickel–iron technology was found wanting and abandoned. Charge/discharge efficiency: <65% NOMINAL cell voltage: 1.2 V Charge temperature interval: MIN. −40 °C – max.46 °C Self-discharge rate: 20% – 30%/MONTH

Answer»

Jungner discovered that the main advantage over the nickel–cadmium CHEMISTRY was cost, but due to the lower efficiency of the charging reaction and more pronounced formation of HYDROGEN (gassing), the nickel–iron technology was found wanting and abandoned.

Charge/discharge efficiency: <65%

NOMINAL cell voltage: 1.2 V

Charge temperature interval: MIN. −40 °C – max.46 °C

Self-discharge rate: 20% – 30%/MONTH

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Why lesser efficiency of lead acid with nickel iron?

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