Introduction: Batteries and Fuel Cells

What are batteries, fuel cells, and supercapacitors?

Electrochemical energy conversion devices are pervasive in our daily lives. Batteries, fuel cells and supercapacitors belong to the same family of energy conversion devices. They are all based on the fundamentals of electrochemical thermodynamics and kinetics. All three are needed to service the wide energy requirements of various devices and systems. Neither batteries, fuel cells nor electroch...

Beyond Batteries: Portable Hydrogen Fuel Cells

Comparison between Batteries and Fuel Cells for Photovoltaic System Backup

Batteries and fuel cells contain a great potential to back up severe photovoltaic power fluctuations under inclement weather conditions. In this paper comparison between batteries and fuel cells is carried out in detail only for their PV power backup options, so their common attributes and different attributes is discussed. Then, the common and different attributes are compared; accordingly, th...

Design Parameters for Fuel Batteries

Some design parameters of a hydrazine-oxygen fuel battery operating in a zero G field are described in a digital computer programming treatment. The power balance for a battery employing a gas-producing electrode and an electrolyte pump is treated; optimum power densities and flow rates are established. INTRODUCTION WITHIN the last decade fuel cell technology has advanced from the research stag...

Fuel Cells and Flow Batteries - Chances and Challenges for Sustainable Energy Supply

The upcoming innovation of a sustainable energy supply and smart grids will clearly change the infrastructure of the global energy supply, distribution and use. One key issue is the increase of efficiency of energy utilization and energy conversion under the condition that the importance of electricity will further increase. The increasing amount of fluctuating renewable electric power generati...