Taking steps forward in understanding the electrochemical behavior of Na2Ti3O7
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10315384" target="_blank" >RIV/00216208:11310/15:10315384 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c5ta05174f" target="_blank" >http://dx.doi.org/10.1039/c5ta05174f</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c5ta05174f" target="_blank" >10.1039/c5ta05174f</a>
Alternative languages
Result language
angličtina
Original language name
Taking steps forward in understanding the electrochemical behavior of Na2Ti3O7
Original language description
Na2Ti3O7 is an interesting negative electrode material for sodium ion batteries given its electrochemical capacity and low operation potential. Unfortunately its prospects of practical application are hindered by an unacceptable capacity fading upon cycling. In this work we combine experiments and DFT calculations to investigate the origin of such a phenomenon. Different electrode technologies and different electrolytes have been targeted for electrochemical testing while the stability of Na2Ti3O7 and the fully reduced Na4Ti3O7 has been studied. The calculated elastic constants and vibrational modes support the mechanical and dynamical stability of the Na4Ti3O7 structure. In situ XRD measurements corroborate the reversibility of the insertion reactionas no structural damage is detected after 50 cycles. An intriguing reactivity of Na2Ti3O7 with the electrolyte upon storage is observed, which coupled to electrochemical measurements points to this being the main factor behind capacity fa
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Chemistry A
ISSN
2050-7488
e-ISSN
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Volume of the periodical
3
Issue of the periodical within the volume
44
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
22280-22286
UT code for WoS article
000364080400040
EID of the result in the Scopus database
2-s2.0-84946605972