Metal-organic framework MIL-101(Fe)eNH2 as an efficient host for sulphur storage in long-cycle Li-S batteries

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F20%3APU136788" target="_blank" >RIV/00216305:26220/20:PU136788 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0013468620310331?dgcid=coauthor#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0013468620310331?dgcid=coauthor#</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2020.136640" target="_blank" >10.1016/j.electacta.2020.136640</a>

Result language
angličtina
Original language name
Metal-organic framework MIL-101(Fe)eNH2 as an efficient host for sulphur storage in long-cycle Li-S batteries
Original language description
Porous metal-organic framework (MOF) MIL-101(Fe)–NH2 was synthesized, characterized and used as a host material for sulphur in the context of lithium-sulphur batteries. The MIL-101(Fe)–NH2 support possessed, a large surface area, close to 3500 m2 g−1, and mild framework stability up to 120 °C. As the framework stability strongly depends on the presence of guests in the micro/mesoporous cages, conditions for sulphur inclusion process were carefully selected, and then the material was further carbonized. MOF as a conductive part of cathode material displayed successful sulphur capture and encapsulation. The encapsulation of sulphur was accompanied by highly stable charge/discharge cycle performances and high efficiency. Consequently, the cathode showed at a current rate 0.5C a high initial discharge capacity of 705 mA h g−1 and after 200 cycles of 476 mA h g−1, corresponding to a low fading rate of 0.162% per cycle. The capacity of the cycle after self-discharge was 94.8% of the capacity in the cycle before self-discharge.
Czech name
—
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
—
OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project
<a href="/en/project/LM2018110" target="_blank" >LM2018110: CzechNanoLab research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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