文档介绍：英文原文
Key challenges and recent progress in batteries, fuel cells,
and hydrogen storage for clean energy systems
Steven G. Chalk a, James F. Miller b,∗
a . Department of Energy, 1000 Independence Avenue SW, Washington, DC 20585, USA
b Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
Available online 3 July 2006
Abstract
Reducing or eliminating the dependency on petroleum of transportation systems is a major element of US energy research activities. Batteries are a key enabling technology for the development of clean, fuel-efficient vehicles and are key to making today’s hybrid electric vehicles a ess. Fuel cells are the key enabling technology for a future hydrogen economy and have the potential to revolutionize the way we power our nations, offering cleaner, more efficient alternatives to today’s technology. Additionally fuel cells are significantly more energy efficient bustion-based power generation technologies. Fuel cells are projected to have energy efficiency twice that of bustion engines. However before fuel cells can realize their potential, significant challenges remain. The two most important are cost and durability for both automotive and stationary applications. Recent electrocatalyst developments have shown that Pt alloy catalysts have increased activity and greater durability than Pt catalysts. The durability
of conventional flu