| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a battery capable of preventing danger due to heat generation of a terminal even if an external short circuit or the like occurs by circulating a liquid coolant such as water or oil to positive and negative electrode terminals projecting from a battery case and thereby cooling the terminals. SOLUTION: Each cell 1 is provided with two positive electrode cell terminals 2 projecting from the front side end face of a battery case 8 and similarly provided with negative electrodes projected from the opposite side end face. The positive electrode cell terminals 2 are connected to a long Al set battery terminal 4 through an L-shaped Al connection fitting 3, the positive electrode side cell terminals 2 are connected to a long Cu set battery terminal 4 through a L-shaped Cu connection fitting 3, and their upper end faces are connected to an external apparatus. Water-cooled jackets 5 are provided on both side faces of this battery, the cells 1 are cooled by feeding cold water from a water- cooling circulation device 6 to a pipe 5a. The terminal parts are cooled as well by installing terminal water-cooling jackets 7 covering the cell terminals 2 and the set battery terminals 4. Thereby, even if a large current flows due to a short circuit or the like, heat is rapidly radiated so that the temperature rise of the battery can be prevented.</p> |
