Felix N Buchi

Polymer Electrolyte Fuel Cell Durability Felix N Buchi 2009 edition

Marc Notes: Includes bibliographical references and index. Jacket Description/Back: A major part of the competitiveness gap of polymer electrolyte fuel cell (PEFC) technology in automotive and stationary co-generation applications is due lack of durability. This book analyzes the relevant degradation processes in PEFC on the level of components, cells and stacks, and applications. Prominent authors from the PEFC field describe and analyze in 23 chapters the relevant degradation mechanisms and mitigation strategies. Review Quotes: From the reviews: The editors of this book have brought together a strong collection of topics of PEMFC design and operation, and provide a solid overview of all key aspects of their durability. for students and new workers in the field, this book could serve as a short course which allows them to critically read the literature and to understand the conference papers on the subject from a solid frame of reference. (David A. Schiraldi, Macromolecular Chemistry and Physics, Vol. 210, 2009)"Table of Contents: Part I. Stack Components -- 1. Introduction Editors -- 2. Catalysts -- Dissolution and Stabilization of Platinum in Oxygen Cathodes / Kotaro Sasaki, Minhua Shao, Radoslav Adzic -- Carbon-Support Requirements for Highly Durable Fuel Cell Operation / Paul T. Yu, Wenbin Gu, Jingxin Zhang, Rohit Makharia, Frederick T. Wagner, Hubert A. Gasteiger -- 3. Membranes -- Chemical Degradation of Perfluorinated Sulfonic Acid Membranes / Minoru Inaba -- Chemical Degradation: Correlations Between Electrolyzer and Fuel Cell Findings / Han Liu, Frank D. Coms, Jingxin Zhang, Hubert A. Gasteiger, Anthony B. LaConti -- Improvement of Membrance and Membrane Electrode Assembly Durability / Eiji Endoh, Satoru Hommura -- Durability of Radiation-Grafted Fuel Cell Membranes / Lorenz Gubler, G&uumlet;nther G. Scherer -- 4. GDL -- Durability Aspects of Gas-Diffusion and Microporous Layers / David L. Wood, Rodney L. Borup -- 5. MEAs -- High-Temperature Polymer Electrolyte Fuel Cells: Durability Insights / Thomas J. Schmidt -- Direct Methanol Fuel Cell Durability / Yu Seung Kim, Piotr Zelenay -- 6. Bipolar Plates -- Influence of Metallic Bipolar Plates on the Durability of Polymer Electrolyte Fuel Cells / Joachim Scherer, Daniel M&uumlet;nter, Raimund Str&oumlet;bel -- Durability of Graphite Composite Bipolar Plates / Tetsuo Mitani, Kenro Mitsuda -- 7. Sealings -- Gaskets: Important Durability Issues / Ruth Bieringer, Matthias Adler, Stefan Geiss, Michael Viol -- Part II. Cells and Stack Operation -- 1. Introduction Editors -- 2. Impact of Contaminants -- Air Impurities / Jean St-Pierre -- Impurity Effects on Electrode Reactions in Fuel Cells / Tatsuhiro Okada -- Performance and Durability of a Polymer Electrolyte Fuel Cell Operating with Reformate: Effects of CO, CO2, and Other Trace Impurities / Bin Du, Richard Pollard, John F. Elter, Manikandan Ramani -- 3. Freezing -- Subfreezing Phenomena in Polymer Electrolyte Fuel Cells / Jeremy P. Meyers -- 4. Reliability Testing -- Application of Accelerated Testing and Statistical Lifetime Modeling to Membrane Electrode Assembly Development / Michael Hicks, Daniel Pierpont -- 5. Stack Durability -- Operating Requirements for Durable Polymer-Electrolyte Fuel Cell Stacks / Mike L. Perry, Robert M. Darling, Shampa Kandoi, Timothy W. Patterson, Carl Reiser -- Design Requirements for Bipolar Plates and Stack Hardware for Durable Operation / Felix Blank -- Heterogeneous Cell Ageing in Polymer Electrolyte Fuel Cell Stacks / Felix N. B&uumlet;chi -- Part III. System Perspectives -- 1. Introduction Editors -- 2. Stationary -- Degradation Factors of Polymer Electrolyte Fuel Cells in Residential Cogeneration Systems / Takeshi Tabata, Osamu Yamazaki, Hideki Shintaku, Yasuharu Oomori -- 3. Automotive -- Fuel Cell Stack Durability for Vehicle Application / Shinji Yamamoto, Seiho Sugawara, Kazuhiko Shinohara -- Part IV. R&D Status -- 1. Introduction Editors -- 2. R&D Status -- Durability Targets for Stationary and Automotive Applications in Japan / Kazuaki Yasuda, Seizo Miyata -- Index. Publisher Marketing: This book covers a significant number of R&D projects, performed mostly after 2000, devoted to the understanding and prevention of performance degradation processes in polymer electrolyte fuel cells (PEFCs). The extent and severity of performance degradation processes in PEFCs were recognized rather gradually. Indeed, the recognition overlapped with a significant number of industrial dem- strations of fuel cell powered vehicles, which would suggest a degree of technology maturity beyond the resaolution of fundamental failure mechanisms. An intriguing question, therefore, is why has there been this apparent delay in addressing fun- mental performance stability requirements. The apparent answer is that testing of the power system under fully realistic operation conditions was one prerequisite for revealing the nature and extent of some key modes of PEFC stack failure. Such modes of failure were not exposed to a similar degree, or not at all, in earlier tests of PEFC stacks which were not performed under fully relevant conditions, parti- larly such tests which did not include multiple on off and/or high power low power cycles typical for transportation and mobile power applications of PEFCs. Long-term testing of PEFCs reported in the early 1990s by both Los Alamos National Laboratory and Ballard Power was performed under conditions of c- stant cell voltage, typically near the maximum power point of the PEFC."