APPARATUS AND METHOD FOR CONTROLLING STEP CHARGING OF SECONDARY BATTERY
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United States of America Patent
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Apr 25, 2024
app pub date -
Dec 5, 2023
filing date -
Dec 5, 2023
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Abstract
Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.
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