BATTERY DEVICE, CONTROL METHOD, AND CONTROL PROGRAM
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United States of America Patent
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Sep 19, 2024
app pub date -
Mar 15, 2024
filing date -
Mar 15, 2023
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Abstract
A battery device is disclosed. The battery device includes a lithium-ion battery cell; a strain gauge attached to a surface of the battery cell; a temperature sensor detecting a temperature of the battery cell; and a measurement device calculating an SOC (State of Charge) of the battery cell a strain amount based on the temperature detected by the temperature sensor and a strain amount of the strain gauge changed according to a volume change due to charge and discharge of the battery cell.
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