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US 2024/0047697 A1Published application
Lead Foil And Bipolar Lead Acid Storage Battery
AssigneesFurukawa Electric Co., Ltd., The Furukawa Battery Co., Ltd.
InventorsHiroshi Kaneko, Miho Yamauchi, Jun Furukawa, Ayano Koide, Keizo Yamada
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Abstract
A lead foil and a bipolar lead acid storage battery capable of preventing breakage of the lead foil due to growth deformation are described. The lead foil is for a current collector in a bipolar lead acid storage battery, in which at least one of a front surface or a back face has a maximum valley depth Rv of 4 μm or less in a profile curve acquired, orthogonally to a rolling direction, by surface roughness measurement with a stylus.
Claims5
A lead foil for a current collector in a bipolar lead acid storage battery, wherein
- at least one of a front surface and a back face has a maximum valley depth Rv of 4 μm or less in a profile curve acquired, orthogonally to a rolling direction, by surface roughness measurement with a stylus.
Dependencies are inferred from the claim text.