Lead-acid battery
AssigneeGS Yuasa International Ltd.
InventorsYasunori Mizoguchi, Akihito Tsujinaka
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Abstract
A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode material. The negative electrode plate includes a negative current collector and a negative electrode material. The positive current collector contains a lead alloy containing Ca and Sn. The content of Ca in the positive current collector is 0.2% by mass or less, and the content of Sn is 0.5% by mass or more. The negative electrode material contains a first organic expander (excluding a lignin compound) containing at least one selected from the group consisting of a unit of a monocyclic aromatic compound and a unit of a bisphenol S compound.
Claims23
A lead-acid battery comprising a positive electrode plate, a negative electrode plate, and an electrolyte solution,
- wherein the positive electrode plate includes a positive current collector and a positive electrode material,
- the negative electrode plate includes a negative current collector and a negative electrode material,
- the positive current collector contains a lead alloy containing Ca and Sn,
- a content of Ca in the positive current collector is 0.2% by mass or less, and a content of Sn is 0.5% by mass or more, and
- the negative electrode material contains a first organic expander (excluding a lignin compound) containing at least one selected from the group consisting of a unit of a monocyclic aromatic compound and a unit of a bisphenol S compound.
Dependencies are inferred from the claim text.