Lead-Acid Battery System And Lead-Acid Battery Life Estimation Method
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United States of America
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Nov 14, 2024
app pub date -
Jul 25, 2024
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Jul 25, 2024
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Abstract
Described are a lead-acid battery system and life estimation method capable of accurately estimating a remaining life of a lead-acid battery by calculating a capacity turnover (CT) value during operation in consideration of at least one of a lower limit state of charge (SOC) or a low SOC dwell time. A capacity turnover value calculation unit calculates the CT value using at least one of a lower-limit-SOC-based correction coefficient KLSOC calculated based on a lower limit SOC, which is an SOC having the smallest value when the lead-acid battery is charged and discharged once, respectively, or a low-SOC-dwell-time-based correction coefficient Kt_LSOC calculated based on a low SOC dwell time tLSOC, which is an elapsed time until the next discharge or charge starts when a discharge ends below a reference SOC.
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