тепловой разгон

Through the thermal decomposition it was shown that in electrodes of nickel-cadmium accumulators having long periods of operation there is a great amount of hydrogen. For example, in the accumulator НКБН-25-УЗ having a five year's period of operation there are approximately 805 litres of hydrogen.

It is shown from analysis of charging current and voltage change on the terminals of sealed Ni-Cd battery at thermal runaway, that thermal runaway is accompanied by a new high-power electrochemical reaction, going at battery voltage of approximately 0.55 V.

It is shown by experiments that probability of thermal runway in nickel-cadmium batteries with sintered oxide-nickel electrodes is higher, than in the batteries with extruded and pasted electrodes. Besides, it is shown that the probability of thermal runaway decreases with decrease of battery capacitance.