| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack in which the number of temperature detectors for detecting the temperature of battery cells is suppressed, and the temperature of a battery pack in a pack case can be estimated.SOLUTION: A battery pack 1 includes a pack case 3 for housing a plurality of battery stacks 20 each constituted by laminating a plurality of battery cells 2, a blower 6 for circulating a fluid in the case, battery temperature thermistors 900 for detecting the temperature of the battery cells 2, and a battery management unit 4. At least one battery temperature thermistor 900 is installed in each battery stack 20, so as to detect the temperature of a battery cell 2 at a specific position in the laminating direction of cells. The battery temperature thermistor 900, provided in one of the plurality of battery stacks 20, detects the temperature of a battery cell 2 at a different position in the laminating direction of cells, for the battery temperature thermistor 901 installed in other battery stack 22. |
