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|Title: ||In-situ neutron diffraction study of the MoS2 anode using a custom-built Li-ion battery|
|Authors: ||Sharma, N|
|Keywords: ||Neutron Diffraction|
|Issue Date: ||28-Sep-2011|
|Citation: ||Sharma, N., Du, G. D., Studer, A. J., Guo, Z. P., Peterson, V. K. (2011). In-situ neutron diffraction study of the MoS2 anode using a custom-built Li-ion battery. Solid State Ionics, 199-200, 37-43.|
|Abstract: ||This work presents the first in-situ neutron diffraction study of the MoS2 electrode, undertaken in a custom-built Li-ion battery during discharge. A review of custom-designed cells for in-situ neutron diffraction experiments is presented along with our optimised cell, which we use to show real-time information corresponding to Li-insertion into MoS2 via disappearance of the (103) reflection and increase in the d-spacing of the (002) reflection. The changes in the diffraction patterns begin at the 1.1 V plateau and are complete during the 0.5 V plateau. Sequential Rietveld-refinement indicates the presence of an intermediate lithiated phase (LixMoS2) between MoS2 and LiMoS2. We observe the disappearance of all reflections for the MoS2, corresponding to the loss of long-range order, during the 0.5 V plateau and no new diffraction peaks appear with further electrochemical cycling. This result is indicative of a transformation from long-range ordered MoS2 to short-range ordered LiMoS2, a result that we confirm using ex-situ synchrotron X-ray and neutron diffraction. © 2011, Elsevier Ltd.|
|Appears in Collections:||Journal Articles|
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