Carrageenan as an Ecological Alternative of Polyvinylidene Difluoride Binder for Li-S Batteries
| Autor: | Alex Markevich, Tomáš Kazda, Kamil Jaššo, Marie Sedlaříková, Andrea Fedorková Straková, Elena Shembel, Dominika Capková |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
cathode Technology Materials science Li-S battery Polyvinylidene difluoride chemistry.chemical_element Electrochemistry Article law.invention chemistry.chemical_compound law pouch cell Pouch cell General Materials Science Microscopy QC120-168.85 QH201-278.5 Engineering (General). Civil engineering (General) Cathode Carrageenan TK1-9971 chemistry Chemical engineering Descriptive and experimental mechanics lithium sulfur Electrode carrageenan battery Lithium Electrical engineering. Electronics. Nuclear engineering TA1-2040 binder |
| Zdroj: | Materials, Vol 14, Iss 5578, p 5578 (2021) Materials . 2021, vol. 14, issue 19, p. 1-11. Materials Volume 14 Issue 19 |
| ISSN: | 1996-1944 |
| Popis: | Lithium-sulfur batteries are one of the most promising battery systems nowadays. However, this system is still not suitable for practical application because of the number of shortcomings that limit its cycle life. One of the main problems related to this system is the volumetric change during cycling. This deficiency can be compensated by using the appropriate binder. In this article, we present the influence of a water-soluble binder carrageenan on the electrochemical properties of the Li-S battery. The electrode with a carrageenan binder provides good stability during cycling and at high C-rates. Electrochemical testing was also carried out with a small prototype pouch cell with a capacity of 16 mAh. This prototype pouch cell with the water-based carrageenan binder showed lower self-discharge and low capacity drop. Capacity decreased by 7% after 70 cycles. |
| Databáze: | OpenAIRE |
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