LEAD STORAGE BATTERY

• Main Authors: HASEGAWA MIKITO, OKI NOBUNORI, IZUMI KENJI, KOJIMA MASARU
• Format: Patent
• Language: English; Japanese
• Published: 06.12.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a lead storage battery which can suppress the overflow of an electrolyte solution from a liquid-pouring port when pouring a liquid in a liquid type lead storage battery.SOLUTION: A lead storage battery 100 comprises: a plurality of electrode plate groups 134; a battery case 120 having a plurality of cell chambers 22 for individually encasing the plurality of electrode plate groups 134 respectively; an electrolyte solution encased respectively in each of the plurality of cell chambers 22; and a battery case lid 110 for closing openings of the plurality of cell chambers 22 collectively. The battery case lid 110 includes: a lid main body having a first principal face 11 in which a plurality of liquid-pouring ports are provided in line in a first direction, corresponding to the plurality of cell chambers 22, and a second principal face opposed thereto; and a plurality of cylindrical wells respectively hanging down from peripheral edges of the plurality of liquid-pouring ports in the second principal face. The plurality of cylindrical wells each have a pair of slits along an axial direction of the cylindrical well. The pair of slits each have a slit width of 5 mm or larger, and open in a second direction crossing the first direction.SELECTED DRAWING: Figure 1 【課題】液式の鉛蓄電池において、注液時の電解液の液口からの溢れを抑制できる鉛蓄電池の提供。【解決手段】複数の極板群１３４と、複数の極板群１３４をそれぞれ個別に収納する複数のセル室２２を有する電槽１２０と、複数のセル室２２にそれぞれ収容された電解液と、複数のセル室２２の開口部を一括して封口する電槽蓋１１０とを備え、電槽蓋１１０が、複数のセル室２２に対応する複数の液口が第１方向に並んで設けられた第１主面１１およびその反対側の第２主面を有する蓋本体と、第２主面の複数の液口の周縁からそれぞれ垂下する複数の筒状ウェルとを有し、複数の筒状ウェルは、それぞれ筒状ウェルの軸方向に沿った一対のスリットを有し、一対のスリットは、それぞれ５ｍｍ以上のスリット幅を有し、かつ第１方向と交差する第２方向に開口している、鉛蓄電池１００。【選択図】図１