| 摘要 |
A battery pack includes a CS (20) and a BM (62). The CS (20) includes a voltage measurement circuit (24) for measuring voltages V of cells (14). The BM (62) includes a CPU (70) and memory (76) that is configured to store a first correlation table representing a correlation between positive electrode potentials of each cell (14) and discharge capacities thereof (14) and a second correlation table representing a correlation between negative electrode potentials of each cell (14) and discharge capacities thereof (14). The CPU (70) in the BM (62) is configured to: measure a voltage V of the cell (14) under discharge (S2); calculate a discharge cutoff capacity at which the voltage V is equal to a discharge cutoff voltage (S8); correct the second correlation table stored in the memory (76) such that the voltage V at the discharge cutoff capacity is equal to the discharge cutoff voltage (S16); and generate an open circuit voltage characteristic using the corrected second correlation table (S18). |
