Battery charging control method, storage medium and electronic equipment

Abstract

The invention discloses a battery charging control method, a storage medium and electronic equipment, and the method comprises the steps: obtaining the residual capacity of a first battery in response to a battery gun insertion charging operation; if the residual capacity of the first battery is within a preset battery capacity range, acquiring a first battery monomer temperature and a first battery monomer voltage; and setting a battery charging current according to the first battery monomer temperature, the first battery monomer voltage and the first battery residual capacity. When the battery is inserted into a gun for charging, the first battery residual capacity is obtained firstly, whether the battery is in the later charging period or not is judged, if yes, the battery charging current is set according to the temperature of the single battery, the voltage of the single battery and the battery residual capacity, and due to the fact that the battery residual capacity cannot be depolarized or fluctuated due to change of the charging current, stable charging current can be provided, charging current fluctuation is avoided, the charging current can be kept at a stable current value, and the charging efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of automobile batteries, in particular to a battery charging control method, a storage medium and electronic equipment. Background technique [0002] The existing charging strategy for automotive lithium batteries is to query the charging current with the cell voltage and temperature and the two-dimensional table. At the same temperature, the lower the cell voltage, the greater the queried charging current. figure 1 It shows the schematic diagram of the voltage change of the battery cell when the lithium battery is charged with a plug gun at the end of charging, that is, when the remaining capacity of the battery is high. The cell voltage when the gun is charging is actually lower than the cell voltage after the last charge, so the charging current after the gun is inserted is relatively large. The larger charging current will bring about the battery polarization voltage, which will cause the cell...

AI Technical Summary

Problems solved by technology

figure 1 It shows the schematic diagram of the voltage change of the battery cell when the lithium battery is charged with a plug gun at the end of charging, that is, when the remaining capacity of the battery is high. The cell voltage when the gun is charging is actually lower than the cell voltage after the last charge, so the charging current after the gun is inserted is larger

The larger charging current will bring about the battery polarization voltage, which will cause the cell voltage to rise rapidly to point A. At this time, look up the table again, and the charging current will be greatly reduced. Under the same temperature, the cell voltage will tend to a stable voltage value lower than the cell voltage at point A, and since the charging current can only decrease but not increase at the same temperature, it can only be charged with a small charging current.

[0003] It can be seen that in the existing charging strategy, the lithium battery is charged when the remaining capacity of the battery is high, and the charging current fluctuates greatly in a short period of time, which is easy to accelerate the aging of the battery, and the charging current will eventually stabilize at a lower value. prolong charging time

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