Patent ID: 11894560
Assignee: GS YUASA INTERNATIONAL LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. 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.