Novel Microchannel Arrangement for Better Microfluidic Fuel Cell Performance

Overview

In many conventional reactive microfluidic channels, (e.g., fuel cells), the reaction rate declines along the length of the microfluidic channel. In fuel cells, this can lead to declines in current and power density. We have invented a geometric arrangement for channels through which liquids or other fluids flow, for enhanced performance of fuel cells and other chemical or biochemical reactors and analyzers.

Market Opportunity

Microfluidic fuel cells consist of an anode and cathode configured as a galvanic cell in a microchannel. Parallel streams of fuel and oxidant flow across the anode and cathode, and electrochemical reactions occur when the potential difference between fuel and oxidant is thermodynamically favorable. In many conventional reactive microfluidic channels, (e.g., fuel cells), the rate of reaction declines along the length of the microfluidic channel. In fuel cells, this can lead to declines in current and power density. Thus, there is a need for better performing microfluidic fuel cells.

Innovation and Meaningful Advantages

We have invented a geometric arrangement for channels through which liquids or other fluids flow, for enhanced performance of fuel cells and other chemical or biochemical reactors and analyzers. The reactors have one or more microchannels, each of which consists of a tapered cross-sectional area and at least one reactive surface. When a liquid with one or more reactants flows through a channel, the cross-sectional area decreases in the downstream direction. More reactant can be supplied to the wall at downstream positions, relative to the amount that would be supplied in a system without a tapered cross-section. Our invention is not limited to these specific channel configurations, but can improve reaction in any system that has channels with at least one reactive surface portion.

Collaboration Opportunity

We are interested in exploring 1) startup opportunities with investors; 2) collaborations with leading research companies; and 3) licensing opportunities with research companies.

Principal Investigator

G. Tayhas R. Palmore, PhD

Elaine I. Savage Professor of Engineering, Professor of Chemistry

Brown University

tayhas_palmore@brown.edu

https://vivo.brown.edu/display/trpalmor#

IP Information

US Utility 9,112,192B2, Issued August 18, 2015

Contact

Victoria Campbell, PhD

Director of Business Development

victoria_campbell@brown.edu