| 摘要 |
PURPOSE:To provide a Zn-Br battery, whose charged condition can be sensed accurately at any arbitrary temperature. CONSTITUTION:Arrangement according to the present invention is equipped with concentration sensing means 32a,32b and ones 33a, 33b to sense the Zn ion concentration in electrolyte and also with temp. sensing means 31a, 31b. On the basis of temps. sensed by these temp. sensing means 31a, 31b, a calculating device 30 corrects the Zn ion concentration sensed by the concentration sensing means 32a, 32b and the ones 33a, 33b, and the battery charged condition calculated on the basis of the corrected value is displayed. |
