| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery system having one or a plurality of battery modules in which the output voltage can be adjusted simply without using an expensive charge/discharge controller, and the temperature of a battery module can be detected more accurately than conventional.SOLUTION: A battery system 1 includes a battery module 2' formed by stacking 28 unit cells C. The battery module 2' has two connection terminals 30 for taking out electricity disposed between a positive electrode terminal 35 and a negative electrode terminal 36, and a temperature sensor 33 for detecting the temperature of the battery module 2' disposed between the negative electrode terminal 36 and the connection terminal 30 on the negative electrode terminal 36 side. Consequently, even if the positive electrode terminal 35 or any one of the two connection terminals 30 is selected, temperature near an unused unit cell C is not detected, and the temperature of the battery module 2' can be measured more accurately. |
