| 摘要 |
PROBLEM TO BE SOLVED: To provide a lead accumulator having a high capacity, as well as, a high vibration resistance. SOLUTION: The lead accumulator includes a plurality of groups of polar plates made of polar plates of different polarity, which are alternately combined with separators disposed therebetween; a battery container having a plurality of cell chambers for housing the plurality of groups of polar plates; a connection body for collectively connecting the ear portions of the polar plates of the same polarity on both cell chamber sides; a lid; and an electrolyte, wherein the connection body includes an inter-cell connection portion (thickness t) for connecting the cell chambers that are adjacent to each other; a polar plate collector portion for collectively connecting the ear portions of the polar plates; and a bonding portion for bonding the inter-cell connection portion and the polar plate collector portion, wherein the bonding portion includes: a first bonding portion for bonding the underside of the inter-cell connection portion and the side of the polar plate collector portion; and a round-shaped second bonding portion (radius r) for bonding the side of the inter-cell connection portion and a top surface of the polar plate collector portion, and the relationship among t, r and total weight B (kg) per polar plate group 1 which is dried after being fully charged is represented by r/t/B>0.48 (kg<SP>-1</SP>). COPYRIGHT: (C)2011,JPO&INPIT |
