Wound lead acid battery with non-circular cells

摘要

A cell for a lead acid battery comprises: at least one cathode layer of lead-containing material; at least one anode layer of lead-containing material; at least one separator layer sandwiched between the cathode and anode layers that comprises glass fiber and polymeric material; and a casing. The cathode, separator and anode layers are arranged in overlying spirally wound relationship to form a cell element which takes a non-circular shape. The casing is also non-circular and snugly encases the cell element. In this configuration, the cell can be combined with other cells of the same configuration within a housing to form a lead acid battery that occupies less area than a lead acid battery of the same voltage and capacity that includes circular cells.