Energi og miljø

Morphology effects in MgH2 anode for lithium ion batteries

El-Kharbachi, A. , Andersen, H.F. , Sørby, M.H. , Vullum, P.E. , Mæhlen, J.P. , Hauback, B.C.
International journal of hydrogen energy. Available online 24 May 2017
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In order to acquire reproducible electrodes relevant for Li ion batteries new MgH2 electrodes are successfully obtained from homogenous slurries in N-Methyl-2-Pyrrolidone “NMP” solvent. The electrodes are aimed to elucidate the contribution of the cell components to the electrochemical cycling, in terms of morphology and composition. Various electrode preparations were tested and compared regarding their interaction with Li in a half-cell. The obtained electrochemical cycling curves are discussed according to the ball-milling-induced structural morphology changes and presence of carbon additives, along with the effect of the kinetic rate on the conversion reaction mechanism.
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