METHOD AND DEVICE FOR RESTORING ACCUMULATOR BATTERY Russian patent published in 2007 - IPC H02J7/00 H01M10/54 

FIELD: possible use for restoring various types of accumulator batteries.

SUBSTANCE: accumulator battery restoration method includes following modes and parameters - before beginning the restoration of accumulator battery, technological process parameters of accumulator battery restoration are recorded into memory of measuring device, which are compared in process of accumulator battery restoration to current values of accumulator battery restoration process parameters, which are corrected in case of deviation from given value of technological process parameters, charging of accumulator battery with constant current is stopped on achievement of given parameter values, recorded in the memory of measuring device, by current parameter values, after that accumulator battery is charged by letting a series of rectangular current impulses through it, duration of which impulses is set between 150 and 600 milliseconds, and pause between impulses ranges from 2 to 6 seconds, while amplitude of rectangular current impulses is kept unchanged at the temperature of electrolyte below predetermined value, and if the value of electrolyte temperature exceeds that value, the amplitude of rectangular current impulses is reduced to value, at which electrolyte temperature is reduced to predetermined value, and charging process is stopped on achievement of parameter values of measured values, defining end of battery charging process and recorded in the memory of measuring means in advance, after that battery capacity is measured by discharging it, which is stopped when battery voltage reaches limit value set for the battery, and accumulator battery restoration cycle is repeated, if capacity of the battery is less than 80% of nominal value. Device for restoring the accumulator battery contains block of charge current sources, output of which is used for connecting accumulator battery, current sensor, voltage sensor, temperature sensor, electrolyte density meter and memory block, it is fitted with processor, interface block, indication block and decoder, while memory block and indication block are connected to the processor, connected to which via interface block are current sensor, voltage sensor, temperature sensor and electrolyte density meter, processor output is connected to decoder input, first output of which is connected to input for controlling charging current source connection, and second output of decoder is connected to charging current parameter control input of charging current source block.

EFFECT: accumulator battery capacity restored at least at 80% of nominal value.

2 cl, 1 dwg