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US 4,125,690 AGranted
Battery electrode structure
AssigneeChloride Group Limited
InventorsNorman E. Bagshaw, John McWhinnie
Life of this patent
Estimating the term…
Abstract
There is disclosed a battery electrode structure made of a lead-calcium-tin alloy comprising 0.075 to 0.13% by weight calcium, 0.005 to 0.99% by weight tin and 0.0001% to 0.1% by weight aluminium, the balance being substantially lead.
Claims5
A battery electrode structure made of a lead-calcium-tin alloy consisting essentially of 0.081 to 0.099% by weight calcium, 0.4 to 0.7% by weight tin and 0.0001% to 0.1% by weight aluminum, the balance being substantially lead, said alloy having a Brinell hardness of at least 12, 2 days after casting to enable the alloy to be automatically trimmed and handled.
Dependencies are inferred from the claim text.