Precious Metal Free Regenerative Hydrogen Electrode Fuel Cell - PowerPoint PPT Presentation

Fed. funding: $2.8M Length 36 mo. Precious Metal Free Regenerative Hydrogen Electrode Fuel Cell Electrolyzer mode mode Barr Zulevi, Pajarito Powder H 2 O Kathy Ayers, Proton Onsite storage OH - OH - Sanjeev Mukerjee, Northeastern University H 2 H 2 O H 2 O storage Madeleine Odgaard, EWII (Formerly IRD) + O 2 + O 2 Plamen Atanassov, University of New Mexico O 2 storage Economics Ni-Cu/Mo HOR Project Vision H 2 +2OH - 2H 2 O +2e - System testing Ni-X HER Management H 2 O+e - Data We are developing precious metal free fuel cell and Descriptors Ni Workflow H 2 +OH - Knowledge Electrode electrolyzer catalysts for low cost energy storage Scale-up & Manufacturing Project Impact Allow for precious metal free fuel cells and electrolyzers for transportation, backup-power, and renewables grid-level energy storage

Innovation and Objectives Innovation Task outline, technical objectives • Elimination of platinum group metals Yr Yr Yr Task and lead through use of anion exchange 1 2 3 membrane technology for fuel cells FC catalyst: PP, UNM and electrolyzers EC catalyst: NU, Proton, PP • Focus on the bifunctional hydrogen Electrode: Proton, EWII, PP electrode as the critical remaining enabler to low cost materials T2M: PP, Proton, EWII Tech-to-Market strategy Short-term: high-value, fault tolerant electrolyzers, electrodes and catalysts for specialty markets. Long-term: reversible fuel cell and components for renewable storage.

Innovation and Objectives Proposed targets Project history Metric S.o.t.A Proposed The partners have been working on Voltage,0.35A/cm 2 0.4 V 0.65 V different interrelated projects together (fuel cell) and have combined to solve the last Voltage, 0.5A/cm 2 2.4 V 2.1 V piece of the project. (electrolyzer) Progress has been steady, with electrolyzer progress ahead of schedule $/kW at stack level $400 $50 and fuel cell progress accelerating. (AEM vs PEM) (PEM) (AEM) Desirable partnerships Anticipated challenges 1. Improved AEM materials and Electrode structure optimization and electrode structure diagnostics. stability of AEM materials have been 2. Alternate uses and applications of challenging. We are therefore the catalytic materials, electrodes, addressing catalyst/electrode and and systems developed electrode/AEM materials separately.

Catalyst Development Scheme PGM-free PGM Hydrogen Hydrogen Hydrogen Evolution Evolution/Oxidation HE/OR HOR Oxidation Reaction Reactions Reaction Ni- Pt/Ir- NiCr Ni-N/C Ni-Ox M-H Ni-P Pt-Ru W/Mo Ni/Ru Q4 Down select Ni-N/C Ni-Cu/Mo Pt/IrNi/Ru Pt-Ru M-H Q8 Down select HER HOR HE/OR & Q11 Down select PGM-free or PGM catalyst set 3