Patent ID: 8659265
Filing Date: 2014-02-25
Classification: G01R,H01M,Y02E

Abstract:
1. A battery pack, comprising: n+1 battery cells connected in series; an individual cell voltage sensing unit configured to sense voltages respectively of n battery cells of the n+1 battery cells; a multi-cell voltage sensing unit configured to sense a voltage of the n+1 battery cells; and a calculation unit configured to add the respective voltages obtained from the individual cell voltage sensing unit to determine a voltage of the n battery cells, and configured to subtract the voltage of the n battery cells from the voltage of the n+1 battery cells obtained from the multi-cell voltage sensing unit to determine a voltage of the n+1th battery cell, wherein the individual cell voltage sensing unit is formed as an integrated circuit chip, and wherein the multi-cell voltage sensing unit is directly connected to an analog digital converter.