Automotive PEMFC Range extender with high TEMperature Improved meas and Stacks
The purpose of ARTEMIS is to develop and optimise alternative materials for a new generation of European MEAs which could be integrated into a 3 kWe high temperature PEMFC stack, while reducing cost & increasing durability. The MEAs will be based on new & alternative polybenzimidazole type membranes & improved catalytic layers providing low catalyst loading and high efficiency at high temperature as well as offering a high tolerance to pollutants. The MEAs should offer long & stable properties under various conditions of operation relevant to the ranger extender automotive application.
HT-PEMFC technologies are a very promising alternative. Due to their higher operating temperature range (classically 150-180 °C), they are much more tolerant to CO, allowing a lower percentage of CO without irreversible performances losses. Their use yields cheaper and smaller combined reformers. A HT-PEMFC-based electric generator could then possibly be integrated into a vehicle by using available liquid fuels (LGP, gasoline, methanol, etc.) and allowing a more rapid access to the automotive market.
The range extender option is a realistic and incremental introduction of fuel cell technology into the automotive sector.
ARTEMIS is a collaborative project whose aim is to develop a new high temperature PEMFC stack for operation in the temperature range of at least 130 °C, and preferably 150 to 180 °C using novel MEAs comprised of new materials for automotive application as a range extender.
New membrane, electrocatalyst, support, and bipolar plate materials will be developed specifically for MEAs for application as a range extender for transportation application. The scope of the work in ARTEMIS described above and in further detail below includes activities on:
- Development of membrane materials (and liquid electrolyte) with properties appropriate for transportation fuel cell application;
- Validation of the membranes’ high temperature properties including conductivity and mechanical robustness at operation temperatures above 100 °C in non-pressurised cells and stacks with at low relative humidity (no humidification). The stability of the membranes and MEAs will be such that they can be operated significantly above these temperatures (to 180 °C), with concurrent significant benefits in terms of CO tolerance (and tolerance to other pollutants of the ambient environment or within the hydrogen feed). The high quality heat produced at the operating temperatures can be used on stand-by, increasing the overall systems’ efficiency;
- Development of novel catalysts, their supports, and electrode layers allowing for significant reduction in platinum group metal catalyst loadings, compared with those currently used in HT-PEM;
- Optimisation and demonstration of MEA processing at pilot scale based on innovative membranes and electrodes;
- Demonstration of performance and long-term stability under automotive range extender fuel cell conditions;
- Development of multi-scale modelling tools to increase understanding of performance and degradation phenomena in HT-PEM fuel cell single cells.