Bipolar battery plate and fabrication thereof

Abstract

Apparatus and techniques described herein can be used to provide a bipolar battery plate with lower resistance as compared to other approaches. In an example, a bipolar plate comprises a conductive current collector substrate with lead-containing surfaces on both sides, onto which active materials are applied. Interfaces with low contact resistance can be created between the active materials and the current collector substrate by a combination of mechanical, thermochemical, and electrochemical techniques. Specifically, the present subject matter can include a bipolar plate fabricated by applying 'wet,' (e.g., uncured) active materials to the current collector, and performing a curing procedure such that a corrosion layer with low contact resistance is formed between the active materials and the underlying surfaces of the current collector.