Electrochemically active polymers for rechargeable batteries

Article Abstract:

Conducting organic polymers are evaluated in terms of their prospective usefulness in meeting the demands for rechargeable batteries with high specific energy and power. It has been recognized that the highest specific energy and energy density may be provided by ion-transfer battery design with a lithium-inserting carbon negative (or metallic lithium) combined with metal oxide polymer or metal sulfide positive that is capable of inserting lithium ions during discharge and give them off during charging.

Lithium, Lithium (Metal), Conducting polymers, Batteries, Organic conductors

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Comparison of indefinite self-association models

Article Abstract:

A comparison of two indefinite self-association models, equal equilibrium constant (EK) and attenuated equilibrium constant (AK) models, reveals a good agreement among the stacking equilibrium constants. The AK models show variation in the stack with entropy loss. The EK model assumes the stack length to be independent of the entropy change. The EK model is appropriate for studying cases that have weaker interactions and a low population of trimers and higher polymeric species.

Models, Chemical equilibrium

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Scanning tunneling microscopy studies of metal on metal epitaxy

Article Abstract:

Scanning tunneling microscopes (STM) were used to identify the key physical processes that determine the details of film structure and composition of a metal film. It was deduced that some different metal atoms avoid each other on the surface while others cluster together forming a sandwich structure. Metal-on-metal systems were studied to provide real space imaging for non-periodic structures analysis and to provide a wide range of spatial resolution.

Equipment and supplies, Metallic composites, Microelectronics, Scanning tunneling microscopy, Nucleation, Nucleation (Chemistry)

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