water management – TechConnect Briefs

Nanostructured and Self-Assembled Superhydrophilic Bipolar Plate Coatings for Fuel Cell Water Management

Dadheech G., Abd Elhamid M., Blunk R., General Motors Corporation, US

A stably superhydrophilic coating is required on composite and metal bipolar plates to manage byproduct liquid water and, in turn, to enable good PEM fuel cell performace under low power vehicle operating conditions. Silica-based coatings, [...]

Improving Water Management in Fuel Cell Flow Channels via Oscillation of Water Droplets

Schultz R., Diebel J., Allen J., Michigan Technological University, US

To achieve maximum efficiency and reliability in a PEM fuel cell, a balance between keeping the membrane from becoming too dry or too wet must be monitored carefully. At present, product water is moved through [...]

Mathematical Modeling of Water Management in PEM Fuel Cells

Berg P., Promislow K., Stockie J., Wetton B., Simon Fraser University, CA

Liquid water is fundamental to Polymer Electrolyte Membrane fuel cells (PEMFC). Its influence, both beneficial and parasitic, is measured on time scales from femto-seconds to hours, on length scales from Angstroms to centimeters. Its role [...]