| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily flow gas emitted from an individual exhaust port to a collective exhaust port, and reduce acid mists contained in gas, while simplifying a structure of an exhaust flow passage and restraining an electrolyte from flowing to outside of a battery.SOLUTION: A lead storage battery 100 comprises a battery case 2 blocked into plural cell chambers, and a battery case cover 3 for closing an upper opening of the battery case 2. Plural individual exhaust ports 3b linearly aligned corresponding to each cell chamber, and linear exhaust flow passages 3c communicated with the plural individual exhaust ports 3b are formed on the battery case cover 3. A collective exhaust port 3c3 that is an outlet of the exhaust flow passage 3c is provided outside an outermost individual exhaust port 3bx in an aligning direction of the plural individual exhaust ports 3b. In the exhaust flow passage 3c, plural partition walls 9 are provided for parting the adjacent individual exhaust ports 3b, and the outermost individual exhaust port 3bx and the collective exhaust port 3c3, and forming a gas passage space 3S at an upper part in the exhaust flow passage 3c.</p> |
