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CAPKOVA, D. KAZDA, T. ALMASI, M. CECH, O. JASSO, K. MACAK, M. MACKO, J. CUDEK, P. FEDORKOVA STRAKOVA, A.
Original Title
Metal-organic framework for stable cyclability of Li-S batteries for space missions
Type
conference paper
Language
English
Original Abstract
The chemistry and technology of batteries are one of the key factors limiting the performance of satellites, space stations and vehicles in many space missions. Energy storage systems in space applications have to be able to operate in extreme environmental conditions, including pressure, temperature and radiation. In the space industry, it is favourable to take benefit of the latest and best battery technology. Long life cycle performance is necessary to carry out lengthy programmes. Lithium-sulphur batteries are regarded as one of the promising technologies for next-generation batteries due to their high theoretical capacity, energy density, the abundant and low-cost sulphur resources. However, lithium-sulphur batteries have some limitations which have to be solved before commercial application. One of the main shortcomings is the shuttle effect of lithium polysulphides during cycling. Polysulphide shuttle can be suppressed by application of porous matrix in the cathode material. In the proposed approach, the metal-organic framework MOF-76(Gd) was applied as a support for sulphur in lithium-sulphur batteries. MOF-76(Gd) as a porous and conductive part of cathode material shows successful sulphur capture and encapsulation. Sulphur encapsulation was accompanied by stable cycle performance and high efficiency. Consequently, the cathode material displayed a high initial discharge capacity of 687.4 mAh g-1 (3.42 mAh) at 0.5 C, and after 50 cycles, the capacity reached 104 % of the original value.
Keywords
cathode material; electrochemical stability; Li-S battery; metal-organic framework; space application
Authors
CAPKOVA, D.; KAZDA, T.; ALMASI, M.; CECH, O.; JASSO, K.; MACAK, M.; MACKO, J.; CUDEK, P.; FEDORKOVA STRAKOVA, A.
Released
15. 11. 2021
Publisher
International Astronautical Federation, IAF
ISBN
9781713843092
Book
IAC: Proceedings of the International Astronautical Congress
0074-1795
Periodical
Proceedings of the International Astronautical Congress, IAC
Year of study
C3
Number
1
State
unknown
Pages from
Pages to
4
Pages count
BibTex
@inproceedings{BUT183078, author="Dominika {Capková} and Tomáš {Kazda} and Ondřej {Čech} and Kamil {Jaššo} and Miroslav {Almáši} and Martin {Mačák} and Ján {Macko} and Pavel {Čudek} and Andrea {Straková Fedorková}", title="Metal-organic framework for stable cyclability of Li-S batteries for space missions", booktitle="IAC: Proceedings of the International Astronautical Congress", year="2021", journal="Proceedings of the International Astronautical Congress, IAC", volume="C3", number="1", pages="1--4", publisher="International Astronautical Federation, IAF", isbn="9781713843092", issn="0074-1795" }