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- Gejke, Cecilia,1973Chalmers tekniska högskola,Chalmers University of Technology (author)
Structural investigation of the Li+ ion insertion/extraction mechanism in Sn-based composite oxide glasses
- Article/chapterEnglish2001
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- 2001
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- LIBRIS-ID:oai:research.chalmers.se:3eb14ecc-e428-4f46-9adf-f77e2a5a5b78
- https://research.chalmers.se/publication/40693URI
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- Language:English
- Summary in:English
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- The effect of lithium insertion for two Sn-based composite oxide glasses, Sn2BPO6 and Sn2P2O7, was examined during the first electrochemical discharge/charge cycle. Electrodes based on these glasses were analysed with micro-Raman spectroscopy at different steps during the cycle. In-situ X-ray diffraction has been used to confirm the amorphous state during the lithium insertion and extraction process. No alloy formation between Li and Sn could be discerned throughout the first cycle. It was found that when lithium enters the electrode, a reaction at the surface of the glass particles takes place resulting in Li3PO4, Li2O and SnO2 formation. The charge compensation mechanism is thought to be the reduction of Sn2+ to Sn. The formation of Li3PO4 is found to be irreversible and is as such partly responsible for the large observed capacity loss during the first cycle.
Subject headings and genre
- NATURVETENSKAP Kemi Oorganisk kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Inorganic Chemistry hsv//eng
- NATURVETENSKAP Kemi Analytisk kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Analytical Chemistry hsv//eng
- NATURVETENSKAP Kemi Materialkemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng
- NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
- Electrochemical properties
- Raman spectroscopy
- Glasses
- X-ray diffraction
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- Zanghellini, Ezio,1962Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)zanghell (author)
- Börjesson, Lars,1957Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lborje (author)
- Fransson, L. (author)
- Edström, K. (author)
- Chalmers tekniska högskola (creator_code:org_t)
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- In:Journal of Physics and Chemistry of Solids62, s. 1213-1218.0022-3697
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