DETACHABLE BATTERY MODULE, AND METHOD AND APPARATUS FOR THE CHARGE EQUALIZATION OF A BATTERY STRING USING SAME
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Abstract
Provided are a detachable battery module and a charge equalization method and apparatus for a battery string. According to the exemplary embodiments of the present invention, the charge equalization apparatus are modularized by being divided into the master unit and the slave unit, such that the charge equalization apparatus may be expanded and contracted independent of the number of batteries, the circuits are separated for each module, such that the circuits may be easily implemented, and when the circuits are damaged, only the damaged module is replaced, such that the effective countermeasure may be performed.
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Citations
35 Claims
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1-17. -17. (canceled)
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18. A detachable battery module, comprising:
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at least one battery cell; a switch block unit which switches the battery cell; a module switch unit which selects the switch block; and a battery monitoring unit which monitors the battery cell and measures a cell potential to transmit cell potential information. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A charge equalization method for a battery string using a detachable battery module, comprising:
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measuring a potential for at least one battery cell included in at least one detachable battery module by monitoring the battery cell; transmitting information on the measured potential of the battery cell; preparing a charge equalization cell list about overcharged or undercharged battery cells by comparing the transmitted cell potential information with a prestored reference value; connecting battery modules including the corresponding battery cell depending on the charge equalization list; and performing the charge equalization on the corresponding battery cell for a predetermined period by an equalization converter. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification