Li-Se battery: absence of lithium polyselenides in carbonate based electrolyte.
作者信息
Cui Yanjie, Abouimrane Ali, Sun Cheng-Jun, Ren Yang, Amine Khalil
机构信息
Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois, USA.
出版信息
Chem Commun (Camb). 2014 May 30;50(42):5576-9. doi: 10.1039/c4cc00934g.
PMID:24722685
Abstract
The lithiation mechanism of the Li-Se cell in a carbonate-based electrolyte is discussed. It is found that Se is directly reduced to Li2Se in discharge without intermediate phases detected by in situ X-ray diffraction or X-ray absorption spectroscopy. The reason is that the redox products Se and Li2Se, as well as lithium polyselenides are insoluble in the electrolyte.
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