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US 6,284,411 B1Granted
Valve regulated type battery and producing method thereof
AssigneeJapan Storage Battery Co., Ltd.
InventorsMasaaki Shiomi, Yuuichi Okada, Akiyoshi Kimura, Masaji Adachi, Ken Sawai
Life of this patent
Estimating the term…
Abstract
In a valve regulated type lead-acid battery, a positive plate includes a positive grid made of Pb—Ca alloy and a positive active material containing Sb in the range of 0.005% to 1.0% both inclusive per weight of the positive active material; wherein a density of the positive active material is not lower than 3.75 g/cc after formation.
Claims8
A valve-regulated type lead-acid battery comprising:
- a positive plate including a positive grid comprising Pb—Ca alloy and a positive active material comprising a Pb—Sb—As alloy powder, wherein said positive active material contains Sb in the range of 0.005 wt % to 0.1 wt % per weight of said positive active material, and wherein a density of said positive active material is not lower than 3.75 g/cc after formation.
A valve-regulated type lead-acid battery comprising:
- a positive plate including a positive grid comprising Pb—Ca alloy and a positive active material comprising a Pb—Sb—As alloy powder, wherein said positive active material contains As in the range of 0.005 wt % to 0.1 wt % per weight of said positive active material, and wherein a density of said positive active material is not lower than 3.75 g/cc after formation.
Dependencies are inferred from the claim text.