Battery selection for a given wireless Internet of Things (IoT) node or wearables design is complex. Among the important factors are: how long the device is expected to operate with a single battery; the choice between various primary and secondary battery chemistries; the nominal and cut-off voltage of the electronics; the energy/current consumption profile, the […]

Part one of this FAQ series focused on the various types of components available for designing power systems for wireless Internet of Things (IoT) sensor nodes, wearables, and similar applications. This FAQ focuses on measuring and validating the performance of those power systems. There are several instruments and approaches available for measuring and testing the […]

In this second part of EEWorld’s “virtual roundtable” discussion on fuel cells, our panelists delve into the impact of the emergence of fuel cells on energy storage compared with conventional rechargeable batteries: What factors determine when fuel cells are more cost-effective than rechargeable batteries? How do the maintenance and monitoring needs of fuel cells compare […]

In this first part of EEWorld’s “virtual roundtable” discussion on fuel cells, our panelists delve into the impact of fuel cells’ emergence compared with conventional rechargeable batteries: What performance advantage do fuel cells have? What is the barrier to large scale deployment? How can fuel cell performance be improved? And how do the environmental or […]

Fuel cells have begun to get traction in a wide variety of transportation systems. Recent announcements include Honda’s withdrawal from FIA Formula One racing to focus more resources on the development of battery and fuel cell-powered electric vehicles and ZeroAvia’s announcement of the world’s first flight of a hydrogen-electric fuel cell-powered passenger plane. Fuel cells […]

Fuel cells are increasingly being used in stationary power applications such as backup power, microgrids, and renewable energy systems. This is part two of a three-part FAQ series and digs into a wide variety of fuel cells in stationary power applications ranging from low power systems for residential backup power to the use of large-scale […]

There are over 20 categories and subcategories of fuel cell technologies. This article will review several of the most common fuel cell technologies, especially as related to commercialization. This is the first of a three-part FAQ series. Part two will look into “Fuel Cells for Backup Power, Microgrids and Renewable Energy” and part three will […]

In this second part of EEWorld’s “virtual roundtable” discussion on flow batteries, our panelists delve into the impact that the emergence of flow batteries is having on energy storage compared with conventional rechargeable batteries: What factors determine when flow batteries are more cost-effective than rechargeable batteries? How do the maintenance and monitoring needs of flow […]

In this first part of EEWorld’s “virtual roundtable” discussion on flow batteries, our panelists delve into the impact that the emergence of flow batteries is having on energy storage compared with conventional rechargeable batteries: What performance advantage do flow batteries have? What is the barrier to large scale deployment? And how do the environmental or […]

Flow batteries have emerged as a commercial alternative that makes economic sense for certain application profiles. Additional development is still needed for flow batteries to be a mainstream energy storage technology. There are probably hundreds of research efforts worldwide. The following is a sampling of key areas of focus for flow battery research and development. […]