Intercalation of Mg-ions in layered V2O5 cathode materials for rechargeable Mg-ion batteries

Bidragets oversatte titel: Interkalation af Mg-ioner i lagdelt V2O5-katodematerialer til genopladelige Mg-ionbatterier

Daniel Risskov Sørensen, Pætur Johannesen, Christian Kolle Christensen, Dorthe Bomholdt Ravnsbæk

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskning

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Abstrakt

The development of functioning rechargeable Mg-ion batteries is still in its early stage, and a coarse screening of suitable cathode materials is still on-going. Within the intercalation-type cathodes, layered crystalline materials are of high interest as they are known to perform well in Li-ion intercalation batteries and are also increasingly being explored for Na-ion batteries. Here, we present an investigation of the layered material orthorhombic V2O5, which is a classical candidate for an ion-intercalation material having a high theoretical capacity1. We present discharge-curves for the insertion of magnesium, and investigate the degradation as a function of cycle number. Furthermore, in an attempt to separate degradation associated with the cathode and the anode, effects of exchanging anode and electrolyte were investigated. Hereby, up to 50% of the cathode capacity was regained on the subsequent discharge. This indicates that the degradation is highly associated with formation of ion-blocking layers on the anode.
Bidragets oversatte titelInterkalation af Mg-ioner i lagdelt V2O5-katodematerialer til genopladelige Mg-ionbatterier
OriginalsprogEngelsk
Publikationsdato21. sep. 2016
Antal sider1
StatusUdgivet - 21. sep. 2016
Begivenhed1st International Symposium on Magnesium Batteries - Helmholtz Institute Ulm - Tagungszentrum Blaubeuren, Hessenhöfe 33, 89143 Blaubeuren, Tyskland
Varighed: 21. jul. 201622. jul. 2016
Konferencens nummer: 1
http://www.mg-batt.de/

Konference

Konference1st International Symposium on Magnesium Batteries
Nummer1
LokationHelmholtz Institute Ulm - Tagungszentrum Blaubeuren, Hessenhöfe 33
LandTyskland
By89143 Blaubeuren
Periode21/07/201622/07/2016
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