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US 2026/0229708 A1Published application
Separator for lead storage batteries, and lead storage battery using same
OwnerTomonori Kiyama, Juri Iwama +2inventors
InventorsTomonori Kiyama, Juri Iwama, Masaaki Sasayama, Masuro Funaki
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Abstract
Provided is a separator for batteries in which an electrolytic solution contains water. The separator: is characterized by comprising a substrate and a layer laminated on at least one surface of the substrate; and is characterized in that the layer contains inorganic particles, and when Y (ml/100 g) represents the DOA oil absorption of the inorganic particles and X (μm) represents the median diameter of the inorganic particles, Y≤2.5X+200 is satisfied.
Claims25
A battery separator having an electrolyte solution containing water, the separator comprising:
- a substrate;
- and
- a layer laminated on at least one surface of the substrate, the layer comprising inorganic particles,
- characterized in that the relationship Y≤2.5X+200 is satisfied, where Y (ml/100 g) is a DOA oil absorption of the inorganic particles and X (μm) is a median diameter of the inorganic particles.
1 more element
Dependencies are inferred from the claim text.