Publication detail

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

CAPKOVÁ, D. ALMÁŠI, M. KAZDA, T. ČECH, O. KIRÁLY, N. ČUDEK, P. STRAKOVÁ FEDORKOVÁ, A. HORNEBECQ, V.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

Metal-organic framework, MIL-101(Fe)–NH2, Electrochemical energy storage, Lithium-sulphur batteries

Authors

CAPKOVÁ, D.; ALMÁŠI, M.; KAZDA, T.; ČECH, O.; KIRÁLY, N.; ČUDEK, P.; STRAKOVÁ FEDORKOVÁ, A.; HORNEBECQ, V.

Released

10. 9. 2020

ISBN

0013-4686

Periodical

Electrochimica Acta

Number

354

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

12

Pages count

12

URL

https://www.sciencedirect.com/science/article/pii/S0013468620310331?dgcid=coauthor#!

BibTex

@article{BUT164388,
  author="Dominika {Capková} and Miroslav {Almáši} and Tomáš {Kazda} and Ondřej {Čech} and Nikolas {Király} and Pavel {Čudek} and Andrea {Straková Fedorková} and Virginie {Hornebecq}",
  title="Metal-organic framework MIL-101(Fe)eNH2 as an efficient host for sulphur storage in long-cycle Li-S batteries",
  journal="Electrochimica Acta",
  year="2020",
  number="354",
  pages="1--12",
  doi="10.1016/j.electacta.2020.136640",
  issn="0013-4686",
  url="https://www.sciencedirect.com/science/article/pii/S0013468620310331?dgcid=coauthor#!"
}