Lars Barkler, Tejs Vegge and Bo Brummerstedt Iversen stood for re-election. They were all re-elected unanimously on 28 February 2014 at the General assembly. The board consists of: Søren Højgaard Jensen, Chairman Senior scientist, DTU Energy Conversion, Technical University of Denmark Lars Barkler, Treasurer CEO, Lithium Balance Bo Brummerstedt Iversen Professor, Department of Chemistry, Aarhus University …
Symposium
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Status of battery materials at Haldor Topsøe
Based on the overlap between production of heterogeneous catalysts and battery materials Haldor Topsøe is looking at developing and producing competitive battery materials. Recently Haldor Topsøe has decided to move into Na-ion technology by investing in and collaborating with the British start-up Faradion on maturing this technology, which has some cost advantages over Li-ion that …
Permanent link to this article: http://batteriselskab.dk/arrangementer/praesentationer/status-of-battery-materials-at-haldor-topsoe.htm
3D Tomographic Measurements And Simulations Of Li-Ion Battery Positive Electrodes
This talk reviews the use of focused ion beam – scanning electron microscopy (FIB-SEM) and transmission X-ray microscopy (TXM) to obtain three-dimensional tomographic images of commercial lithium-ion battery electrodes such as LiFePO4, LiCoO2, and LiCoO2/Li(Ni1/3Mn1/3Co1/3)O2 composite. After briefly reviewing the measurement techniques, the structural results are described, including imaging of both oxide and carbon phases. …
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Electrical Power-Take Off on garbage truck and other vehicles
Experiences with development, production and application of large LiFePO4 powered E-PTO´s for heavy duty refuse collection vehicles. Check out the presentation here
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Lithium insertion/extraction kinetics in LiFePO4
The electric vehicle appears to be the new frontiers in lithium batteries. Distinctly different from mass produced microelectronics, it requires higher energy density as well as improved power performance requirements. Especially, charge/discharge rates during startup from standstill, deceleration, emergency charging, etc. provide unique challenges. To this end, new chemistries and new material with morphologies like …
Permanent link to this article: http://batteriselskab.dk/arrangementer/praesentationer/lithium-insertionextraction-kinetics-in-lifepo4.htm
Atomic layer deposition in a battery perspective
The Atomic Layer Deposition technique is especially suited for formation of conformal coating of pinhole free films on surfaces with complex geometrical shapes, an architecture most commonly adopted for micro battery designs. Realization of all solid state Li-ion microbatteries should therefore be close at hand, however, no fully functional all solid state ALD-type battery is …
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In situ synchrotron XRD on a capillary Li-O2 battery
In situ studies give an opportunity to explore systems with a minimum of external interference. As Li-air batteries hold the promise for a future battery technology the investigation of the discharge and charge components of the cathode and anode is of importance, as these components may hold the key to making a large capacity rechargeable …
Permanent link to this article: http://batteriselskab.dk/arrangementer/praesentationer/in-situ-synchrotron-xrd-on-a-capillary-li-o2-battery.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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Degradation of LFP-based Battery System used for Primary Frequency Regulation
Lithium-ion batteries have developed into a popular energy storage choice for a wide range of applications because of their superior characteristics in comparison to other energy storage technologies. Besides modelling the performance behaviour of lithium-ion batteries, it has become of huge interest to accurately estimate their degradation because of both economic and technical considerations. The …
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Introduction and TiO2
General introduction to the battery group at Aarhus University and description of how they take advantage of a closely integrated feedback loop between synthesis, structure characterization and electrochemical properties. The battery test cells used in the group is described, including the in-situ split flat cell used to do in-situ XRD tests. Check out the presentation here
Permanent link to this article: http://batteriselskab.dk/arrangementer/praesentationer/introduction-and-tio2.htm