Bipolar lead-acid battery

Details Bipolar lead-acid battery Bipolar lead-acid battery

H - Electricity

01

M

H01M 4/14 (2006.01) H01M 4/21 (2006.01) H01M 4/68 (2006.01) H01M 10/18 (2006.01)

Patent

CA 2115873

ABSTRACT OF THE DISCLOSURE A bipolar lead-acid is disclosed in which a conductive metal substrate is used for the bipolar plates which may comprise either a multi-layer metallic substrate defined as C/A/B/D, layer C having a layer of positive active material adhered thereto and layer D having a layer of negative active material adhered thereto, C can be lead or lead alloy or a conductive tin, titanium dioxide or ruthenium oxide, A is titanium or tin, B is copper or tin, and D is lead, a lead alloy or tin, or a conductive metal substrate-fiber or mesh composite in which the fiber may be glass fibers or the like. A preferred embodiment provides a bipolar lead- acid battery having enhanced capacity by utilizing a central bi-negative or bi-positive plate so that the capacity can be increased without increasing the size of the plates.

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