PROCESS OF PRODUCTION OF OPTIMAL QUANTITY OF ELECTROLYTE IN STORAGE BATTERY Russian patent published in 2004 - IPC

FIELD: electrical power engineering. SUBSTANCE: process of production of optimal quantity of electrolyte in nickel-hydrogen storage battery includes in accordance with invention vacuum impregnation of elements up to complete filling and removal of electrolyte by conducting charge-discharge cycles in following sequence. During first cycle storage battery is charged with current I_ch to 0.05-0.20 fraction of design electric capacitance (C_d) to charge capacitance (0.8-1.2)C_d. In first cycle hydrogen pressure P_ec is established at end of charge, storage battery is discharged with current I_d equal to (0,05-0,40)•C_d to voltage of end of discharge V_ed =n•(0,8-1,0), V, where n is number of storage cells in storage battery. Then 1-15 cycles are conducted with currents I_ch and I_d equal to (0,05-0,40)•C_d. Charging is carried out to pressure I_d, storage battery is discharged to V_ed. Later 3 to 15 cycles are conducted with currents I_ch and I_d equal to (0,1-0,8)•C_d, charging is carried out to pressure P_ec and discharge to V_ed. At final stage cycling is conducted with currents I_ch and I_d equal to currents of charge and discharge under standard operation, charge is performed to P_ec, discharge to V_ed. In process of charging-discharging cycles surplus of electrolyte is thrown away by hydrogen escaping during charging. EFFECT: production of optimal quantity of electrolyte. 2 cl, 3 dwg