Category: Videnskabelig artikel

En samling af videnskabelige artikler udgivet af DBS

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

High Specific Power Dual-Metal-Ion Rechargeable Microbatteries Based on LiMn2O4 and Zinc for Miniaturized Applications

  Miniaturized rechargeable batteries with high specific power are required for substitution of the large sized primary batteries currently prevalent in integrated systems since important implications in dimensions and power are expected in future miniaturized applications. Commercially available secondary microbatteries are based on lithium metal which suffers from several well-known safety and manufacturing issues and …

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Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/high-specific-power-dual-metal-ion-rechargeable-microbatteries-based-on-limn2o4-and-zinc-for-miniaturized-applications.htm

Special Issue in Batteries Journal

Batteries (ISSN 2313-0105) is an international, open access journal of battery technology and materials published quarterly online by MDPI (Multidisciplinary Digital Publishing Institute). The journal is free for readers and accepted papers will be free of charge in 2017 and 2018. Guest Editor Erik Schaltz will organize a Special Issue on Battery Integration and Operation in Electro-Mobile Applications in …

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Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/special-issue-in-batteries-journal.htm

In operando observation of sodium ion diffusion in a layered sodium transition metal oxide cathode material, P2 NaxCo0.7Mn0.3O2

In operando powder X-ray diffraction data reveals an unexpected structural evolution in a layered P2 type NaxCo0.7Mn0.3O2 material during cycling.

Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/in-operando-observation-of-sodium-ion-diffusion-in-a-layered-sodium-transition-metal-oxide-cathode-material-p2-naxco0-7mn0-3o2.htm

Accommodating High Transformation Strains in Battery Electrodes via the Formation of Nanoscale Intermediate Phases

Virtually all intercalation compounds exhibit significant changes in unit cell volume as the working ion concentration varies. Using synchrotron radiation powder X-ray diffraction (PXD) and pair distribution function (PDF) analysis, we discover a new strain-accommodation mechanism.

Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/accommodating-high-transformation-strains-in-battery-electrodes-via-the-formation-of-nanoscale-intermediate-phases.htm

Batteries perform better without the strain

Using high-intensity X-rays to study the crystal structure of a common battery material while it charges and discharges, researchers have filled in new details about how mechanical strain hinders battery performance. These insights could help battery chemists tailor the composition of electrode materials to make better high-power batteries.

Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/batteries-perform-better-without-the-strain.htm

Unlocking the Potential of Cation-Disordered Oxides for Rechargeable Lithium Batteries

In today’s lithium batteries, those cathodes are usually made of an orderly crystalline material, sometimes in a layered structure. When slight deviations from that perfect order are introduced, the battery’s efficiency generally goes down — so disordered materials have mostly been ignored in the search for improved battery materials.

Permanent link to this article: http://batteriselskab.dk/nyheder/unlocking-the-potential-of-cation-disordered-oxides-for-rechargeable-lithium-batteries.htm

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