The use of mobile devices is often limited by the capacity of the employed batteries. The battery lifetime determines how long one can use a device. Battery modeling can help to predict, and possibly extend this lifetime. Many different battery models have been developed over the years. However, with these models one can only compute lifetimes for specific discharge profiles, and not for worklo...

It is necessary to form an energy system in order to deliver the electrical power to a region that delivering energy to them from the national grid is not possible. At the moment, using the hybrid renewable energy systems (HRES) is the suggestion of more articles and scientific books because of environmental problems, nearing to the end of fossil fuels, and challenges including unpredictability...

Electrochemical energy storage systems are categorized into different types, according to their mechanisms, including capacitors, supercapacitors, batteries and fuel cells. All battery systems include some main components: anode, cathode, an aqueous/non-aqueous electrolyte and a membrane that separates anode and cathode while being permeable to ions. Being one of the key parts of any new electr...

If the components of a battery, including electrodes, separator, electrolyte and the current collectors can be designed as paints and applied sequentially to build a complete battery, on any arbitrary surface, it would have significant impact on the design, implementation and integration of energy storage devices. Here, we establish a paradigm change in battery assembly by fabricating rechargea...

Dedicated To my wife, Dohee Kwon v Acknowledgement First of all, I would like to express my deep gratitude to my advisor, Dr. Arumugam Manthiram, for having guided me to finish my research successfully and provided me precious support and constant encouragement. Without his support, it would have taken much longer to finish my work.

236 Performance Characteristics of a Third Generation Portable Radionuclide Identifier Ronald M. Keyser and Timothy R. Twomey ORTEC, 801 South Illinois Avenue, Oak Ridge, TN 37830 ABSTRACT The continuing need for a hand-held, portable radionuclide identifier for use in countering illicit nuclear trafficking and in positive identification of radioactive materials, benign or threat, has fostered ...

significant and rapidly expanding segment of the electronics and semiconductor industries. Unfortunately, projections of the complexity, functionality, and performance of such systems far exceed expected improvements in battery technologies, leading to a widening “battery gap.”1,2 Bridging this gap is a challenge that system designers must face for the foreseeable future. The need to improve ba...

The ideal battery separator would be infinitesimally thin, offer no resistance to ionic transport in electrolytes, provide infinite resistance to electronic conductivity for isolation of electrodes, be highly tortuous to prevent dendritic growths, and be inert to chemical reactions. Unfortunately, in the real world the ideal case does not exist. Real world separators are electronically insulati...