PROTECTION APPARATUS FOR RECHARGEABLE BATTERY AND PROTECTION METHOD FOR RECHARGEABLE BATTERY USING THE SAME
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United States of America Patent
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app pub date -
Nov 9, 2015
filing date -
Nov 13, 2014
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Abstract
A protection apparatus for a rechargeable battery includes a battery module, a cathode power line, an anode power line, a signal line, and a battery protector. The battery module includes a unit cell, a conductor case, a cathode, and an anode. The battery protector measures a charged voltage of the unit cell through the cathode power line and the anode power line, measures a detection voltage of the unit cell through the anode power line and the signal line, and determines a charged state of the unit cell based on a calculated voltage ratio of the charged voltage and the detection voltage.
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