1,721,318 research outputs found
Power sources for portable electronics and hybrid cars. Lithium batteries and fuel cells
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Gelification of liquid-polymer systems: a valid approach for the development of various types of polymer electrolytes membranes
No full textRECHARGEABLE ELECTROCHEMICAL METAL ION CELL AND ACCUMULATOR CONTAINING SAID CELL
No full textA rechargeable electrochemical metal ion cell comprising: - a negative electrode (anode) (1 ); - a positive electrode (cathode) (2); - an electrolyte system (3) interposed between said negative electrode and said positive electrode, wherein: - said negative electrode (1) comprises at least one metal capable of releasing and accepting metal ions; - said positive electrode (2) comprises at least one compound capable of releasing and accepting metal ions different from those of the negative electrode (1); - said electrolyte system (3) comprises: - a glycol-based electrolyte solution containing a salt of a metal included in the negative electrode (1 ) and a salt of a metal included in the positive electrode (2); - a matrix of solid and/or polymer and/or gel type adapted to retain said electrolyte solution, where two reversible reactions take place simultaneously in said cell: a reversible deposition and dissolution process of ions of a metal included in the negative electrode (1 ) takes place in said negative electrode and a reversible ion exchange process of a metal included in the positive electrode (2) takes place in said positive electrode and said metals are different from one another
CELLA ELETTROCHIMICA RICARICABILE IBRIDA AGLI IONI METALLICI ED ACCUMULATORE CONTENENTE TALE CELLA
No full textFunctional Materials for Energy Applications. Lithium batteries: current technologies and future trends
No full textLithium batteries: current technologies and future trends
B Scrosati and J Hassoun, Sapienza University of Rome, Italy
Functional materials represent a class of advanced energy conversion materials, including photoelectric, thermoelectric, electrochemical, piezoelectric and electromagnetic materials. These materials are already widely used in renewable energy applications, such as photovoltaics (PV), hydrogen production and storage and fuel cell systems, as well as in demand-side systems such as lighting, energy recovery and energy storage. Global demands for lower cost, higher efficiency, mass-production and, of course, sustainably sourced systems, coupled with discoveries and innovation in underlying nanotechnology, have led applications based on functional materials to become an increasingly important and promising part of the sustainably energy mix.
This book presents a comprehensive review of the issues, science and development of functional materials in core renewable energy production and sustainable energy management applications. The book initially deals with solar power materials, reviewing the development and sustainability of advanced PV devices, with particular focus on thin-film technologies. The next two sections cover materials development for hydrogen production and storage, and for fuel cells, providing the reader with a critical understanding of the issues facing the integration of these systems into the current energy infrastructure, as well as their potential implementation in a hydrogen-based economy. The final section covers demand-side technologies, reviewing ways in which function materials apply to reducing the energy demand within the built environment, along with energy storage applications that are an essential part of a sustainable energy mix with increasing penetration of renewable energy sources. An appendix focussing on materials simulation approaches rounds off the book’s coverage
Review-Advances in anode and electrolyte materials for the progress of lithium-ion and beyond lithium-ion batteries
No full textThis review attempts to critically discuss the progresses obtained in renewing the chemistry of lithium-ion and beyond lithium-ion batteries. The attention is focused on anode materials, including tin and silicon, graphene and conversion anodes, as well as on electrolytes, comprising polymers, solids, gels and ionic liquids. The paper shows that, although considerable progresses have been achieved in the latest few years, the development of the ideal lithium battery, having high energy density combined with low cost and total safety control, is still to be obtained
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