Tag: analysis

Low-complexity online estimation for LiFePO4 battery state of charge in electric vehicles

This paper proposes a low-complexity online state of charge estimation method for LiFePO4 battery in electrical vehicles. The proposed method is able to achieve accurate state of charge with less computational efforts in comparison with the nonlinear Kalman filters, and also can provide state of health information for battery management system. According to the error …

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Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/low-complexity-online-estimation-for-lifepo4-battery-state-of-charge-in-electric-vehicles.htm

Minutes from meeting on uniform electrode coating

It was a pleasure to welcome participants from Aarhus University, University of Southern Denmark, Technical University of Denmark and the Danish Technological Institute to a morning meeting at Haldor Topsøe in Lyngby July 7 about sharing hands-on experiences with battery material testing. The meeting was held in accordance with the action point established during the annual …

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Permanent link to this article: http://batteriselskab.dk/arrangement/minutes-from-meeting-on-uniform-electrode-coating.htm

Degradation Studies on LiFePO4 Cathodes by FIB/SEM Tomography

Focused Ion Beam (FIB)/Scanning Electron Microscopy (SEM) is considered to be one of the most powerful techniques for three-dimensional morphological analysis and chemical composition characterization. It is widely used to study materials for energy applications and, coupled with computational analysis, it enables detailed 3D reconstructions of the examined sample.  LiFePO4 (LFP) is an interesting cathode …

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Permanent link to this article: http://batteriselskab.dk/arrangement/praesentationer/degradation-studies-on-lifepo4-cathodes-by-fibsem-tomography.htm

In situ study of hydrothermal formation of spinel type LiMn2O4 nanocrystals

Solvothermal reactions have been shown to be a good way to synthesize nanocrystalline materials. Many properties of the product, such as phase composition, crystallite size, morphology and crystallinity, can be controlled by changing and controlling synthesis conditions, such as reaction temperature, heating rate, reaction time, precursor concentration and pH. Ex situ investigation of the effect …

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Permanent link to this article: http://batteriselskab.dk/arrangement/praesentationer/in-situ-study-of-hydrothermal-formation-of-spinel-type-limn2o4-nanocrystals.htm

New Spectroscopic Technique developed at Berkeley Lab’s Advanced Light Source

Over the past several years, scientists have developed several ways to study the changes in a working electrode. These include techniques based on hard X-rays, electron microscopy, neutron scattering, and nuclear magnetic resonance imaging. But most of these methods track structural changes. They don’t track electron and ion dynamics directly, which is very important in …

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Permanent link to this article: http://batteriselskab.dk/nyheder/new-spectroscopic-technique-developed-at-berkeley-labs-advanced-light-source.htm

Procrystal analysis for easy visualization of Li pathways

The search for novel crystalline materials for use as electrodes in battery materials is a lengthy and costly process. There is a great need for a fast evaluation tool to supplement already existing experimental and theoretical methods. In this talk, the procrystal analysis is introduced as a fast technique for pointing out promising candidates for …

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Permanent link to this article: http://batteriselskab.dk/arrangement/praesentationer/procrystal-analysis-for-easy-visualization-of-li-pathways.htm