DOE 2014年冷启动项目总结.pdfVIP

V–140DOE Hydrogen and Fuel Cells Program FY 2014 Annual Progress Report Adam Z. Weber Lawrence Berkeley National Laboratory 1 Cyclotron Rd., MS 70-108B Berkeley, CA 94720 Phone: (510) 486-6308 Email: azweber@lbl.gov DOE Manager Donna Ho Phone: (202) 586-8000 Email: Donna.Ho@ee.doe.gov Subcontractors ? Los Alamos National Laboratory (LANL), Los Alamos, NM ? United Technologies Research Center (UTRC), East Hartford, CT ? 3M Company, St Paul, MN ? McGill University, Montreal, Quebec, Canada Project Start Date: September 21, 2009 Project End Date: Project continuation and direction determined annually by DOE Overall Objectives Fundamentally understand transport phenomena and ? water and thermal management at low and subzero temperatures Examine water (liquid and ice) management with nano-? structured thin-film (NSTF) catalyst layers Develop diagnostic methods for critical properties for ? operation with liquid water Elucidate the associated degradation mechanisms due to ? subzero operation and enable mitigation strategies to be developed Fiscal Year (FY) 2014 Objectives Develop transient models and use it to examine NSTF ? start-up performance as compared to experimental data Quantify performance changes with NSTF and at ? different temperatures and material sets Develop diagnostic methods for critical properties for ? operation with liquid water including analysis of gas diffusion layers (GDLs) and micro-porous layers (MPLs) Examine impact of freeze kinetics and ionomer ? morphology with traditional catalyst layers and thin-film model systems Technical Barriers This project addresses the following technical barriers from the Fuel Cells section of the Fuel Cell Technologies Office Multi-Year Research, Development, and Demonstration Plan: (A) Durability (C) Performance Cell issues – Stack water management – System thermal and water management – System start-up and shut-down time and energy/ – transient operation Technical Targets This p