Unraveling synergistic mixing of SnO2–TiO2 composite as anode for Li-ion battery and their electrochemical properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43933907" target="_blank" >RIV/60461373:22310/21:43933907 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1557/s43578-021-00313-3" target="_blank" >https://link.springer.com/article/10.1557/s43578-021-00313-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1557/s43578-021-00313-3" target="_blank" >10.1557/s43578-021-00313-3</a>

Result language
angličtina
Original language name
Unraveling synergistic mixing of SnO2–TiO2 composite as anode for Li-ion battery and their electrochemical properties
Original language description
Abstract: The effect of Sn/Ti ratio on the electrochemical properties of the anode is studied in Sn-doped TiO2 and SnO2–TiO2 nanofibers synthesized using a pilot-scale electrospinning system. Changes in the lattice structure of TiO2 due to the presence of Sn are studied through X-ray diffraction and high-resolution transmission electron microscopy. Lowering of electrochemical potential (vs Li/Li+) is observed alongside the enhanced capacity (400–600 mAh g−1) with increasing Sn content. Formation of SnO2 grain in sample with high Sn content (70 wt%) shows detrimental effect on cycling stability due to severe volume changes during lithiation/delithiation. We show that the relative fraction of TiO2 and SnO2 framework determines whether the composite is high capacity or high stability. In overall, SnO2–TiO2 composite anode with optimized Sn/Ti ratio can be used for high energy density, cycling stability and working potential lithium-ion battery. Graphic abstract: The relative fraction of TiO2 and SnO2 framework determines whether the composite is high capacity or high stability[Figure not available: see fulltext.] © 2021, The Author(s), under exclusive licence to The Materials Research Society.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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