Effect of charging/discharging on plasticity and fracture in Si anodes for batteries
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The undoped and carbon-free olivine, LiFePO4 was bonded with 5% PVDF, and deposited on F-doped SnO2 support (FTO). The electrodes were modified by a monolayer of three different complexes: NaRu(4,4′-dicarboxylic acid-2,2′-bipyridine)(4,4′-dinonyl-2,2′-bipy ...
The oligomerization of propene was investigated over a series of nickel ion-exchanged Na-X zeolites with varying Ni loadings. Catalyst characterization by temperature-programmed reduction, elemental analysis, and XANES indicates that all of the exchanged N ...
This paper discusses two charge storage systems that exploit the unique properties of block copolymer template nanoporous materials. The first case focuses on electrochem. supercapacitors produced by polymer templating of both sol-gel type and nanocrystal ...
Cation-ordered Li[Ni1/2Mn3/2]O-4 with a P4(3)32 space group (CO-LNMO) and "cation-disordered'' (CDO) LNMO are thought to be the state-of-the-art materials for lithium-ion batteries. However, in contrast to CO-LNMO, the crystal structure and electrochemical ...
By introducing a coupling between internal stresses and activation energy for diffusion in the classical theory of diffusion induced stresses, a class of nonconventional solutions has been found for atomic intercalation into a solid electrode, indicative o ...
LiMnPO4 nanoparticles synthesized by the polyol method were examined as a cathode material for advanced Li-ion batteries. The structure, surface morphology, and performance were characterized by X-ray diffraction, high resolution scanning electron microsco ...
The poor electronic conductivity of LiFePO4 has been one of the major issues impeding it from achieving high power and energy density lithium-ion batteries. In this communication, a novel polymer-wiring concept was proposed to improve the conduction of the ...
LiMn2O4 is one of the important cathode material for rechargeable lithium batteries. Standard ab initio studies within local density approximation (LDA) and generalized gradient approximation (GGA) are not able to reproduce the intrinsic insulating electro ...
This contribution proposes the study of an ‘On-Line’ UPS, where adaptations have been made to replace the initial batteries with supercapacitors. As the electrical behavior of supercapacitors is different from that one of lead-acid batteries, a power elect ...
Poor cyclic performance of electrodes in lithium-ion rechargeable cell batteries is calling for efforts to develop continuum models of diffusion under very large stresses and high solute concentrations. The present work is aimed to develop such a model bas ...
