Separator and sealed lead acid battery
AssigneesNippon Sheet Glass Co., Ltd., Yuasa Battery Co., Ltd.
InventorsJunji Muto, Hironori Kitawaki, Shoji Sugiyama, Yasuhide Nakayama, Katsumi Kitagawa, Kenjiro Kishimoto
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Abstract
A separator substantially comprising only alkali-containing glass fibers with an average fiber diameter of less than 2 .mu.m, and having an electrolyte dripping speed of lower than 80 mm/hr and a content of sulfer S at the surface of the glass fibers of less than 0.02% by weight, as well as a sealed lead acid battery using such a separator.
Claims26
A sealed lead acid battery using a separator substantially comprising only alkali-containing glass fibers with an average fiber diameter of less than 2 .mu.m, and having an electrolyte dripping speed of lower than 80 mm/hr and a content of sulfur S at surfaces of the glass fibers of less than 0.02% by weight.
A sealed lead acid battery using a separator substantially comprising only alkali-containing glass fibers with an average fiber diameter of less than 2 .mu.m, and having an electrolyte dripping speed of lower than 80 mm/hr and a ratio of apparent density and stacking pressure of greater than 1.3.times.10.sup.-4 cm.sup.-1.
A sealed lead acid battery using a separator substantially comprising only alkali-containing glass fibers with an average fiber diameter of less than 2 .mu.m, and having an electrolyte dripping speed of lower than 80 mm/hr, and an electrolyte retention of greater than 1.35 g/cc.
A separator substantially comprising only alkali-containing glass fibers with an average fiber diameter of less than 2 .mu.m, and having an electrolyte dripping speed of lower than 80 mm/hr and a content of sulfur S at surfaces of the glass fibers from 0.002 to 0.02% by weight.
Dependencies are inferred from the claim text.