BATTERY SYSTEM, VEHICLE INCLUDING THE SAME, AND METHOD FOR MONITORING SECONDARY BATTERY

The battery system includes a secondary battery, a voltage sensor, a current sensor, a temperature sensor, and a processor. The processor is configured to calculate a polarization overvoltage by subtracting a voltage drop amount caused by a DC resistance and a reactive resistance of the secondary ba...

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Bibliographic Details
Main Authors Nagai, Hiroki, Inoue, Ryo, Noguchi, Takahiro, Okanishi, Daisuke, Sugo, Yuki, Takizawa, Ryota, Sugino, Yoshiki, Kobayashi, Shunya, SUZUKI, Kentaro, Tanaka, Nobuyuki
Format Patent
LanguageEnglish
Published 22.06.2023
Subjects
BASIC ELECTRIC ELEMENTS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SYSTEMS FOR STORING ELECTRIC ENERGY
TESTING
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Summary:The battery system includes a secondary battery, a voltage sensor, a current sensor, a temperature sensor, and a processor. The processor is configured to calculate a polarization overvoltage by subtracting a voltage drop amount caused by a DC resistance and a reactive resistance of the secondary battery determined in accordance with a temperature and an SOC of the secondary battery from a voltage difference between OCV and CCV of the secondary battery.
Bibliography:Application Number: US202217987955