Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes:
The strongly limited abundance of lithium (Li) and also that of other elements contained in a Li-ion battery (LIB) leads to the need of low-cost and more abundant alternatives. Sodium-ion batteries (SIBs) are a promising alternative as sodium (Na) cells show similar properties to the Li analogues in...
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English German |
| Veröffentlicht: |
Jena
2021
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| Schlagworte: | |
| Zusammenfassung: | The strongly limited abundance of lithium (Li) and also that of other elements contained in a Li-ion battery (LIB) leads to the need of low-cost and more abundant alternatives. Sodium-ion batteries (SIBs) are a promising alternative as sodium (Na) cells show similar properties to the Li analogues in many cases and allow the use of more environmentally friendly and/or more abundant electrode materials. In comparison to the well-known and commercially used intercalation type electrodes, conversion electrodes enable the transfer of several electrons per formula unit of an electrode material and hence provide higher specific capacities. Conversion electrodes may be classified into alloys and transition metal compounds, both being studied within this dissertation. The first publication (doi: 10.1002/ente.201900389) in this cumulative thesis deals about the influence of the ball milling time onto the electrochemical performance for an SnSb/C intermetallic phase and Sn+Sb/C mixture as an example for alloy electrodes. Herein, it is found that longer milling leads to a more stable composite formation with carbon in order to enhance the cycle life for Sn+Sb and SnSb by galvanostatic cycling and in situ dilatometry studies. In the second publication (doi: 10.1016/j.powera.2020.100031) Cu3P is studied as a transition metal compound electrode, which is found to show a better electrochemical performance for the use of an ether electrolyte in comparison to carbonate electrolytes for both, LIBs and NIBs. In the last publication, (doi: 10.1002/adfm.201910583) a thiophosphate (Cu3PS4) was considered as an electrode material for the first time for NIBs which shows a by sulfur dominated redox activity with capacities of about 450 mAh g−1 after 1400 cycles @1 A g−1 in a voltage window between 0.01 and 2.5 V vs. Na+/Na. The results of this dissertation improve the understanding of using alloy and transition metal compound based conversion electrodes in diglyme electrolytes |
| Beschreibung: | Kumulative Dissertation, enthält Zeitschriftenaufsätze Tag der Verteidigung: 01.09.2021 |
| Beschreibung: | 131 Seiten Illustrationen, Diagramme |
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| 245 | 1 | 0 | |a Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes |c von Wolfgang Brehm |
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| 520 | 3 | |a The strongly limited abundance of lithium (Li) and also that of other elements contained in a Li-ion battery (LIB) leads to the need of low-cost and more abundant alternatives. Sodium-ion batteries (SIBs) are a promising alternative as sodium (Na) cells show similar properties to the Li analogues in many cases and allow the use of more environmentally friendly and/or more abundant electrode materials. In comparison to the well-known and commercially used intercalation type electrodes, conversion electrodes enable the transfer of several electrons per formula unit of an electrode material and hence provide higher specific capacities. Conversion electrodes may be classified into alloys and transition metal compounds, both being studied within this dissertation. The first publication (doi: 10.1002/ente.201900389) in this cumulative thesis deals about the influence of the ball milling time onto the electrochemical performance for an SnSb/C intermetallic phase and Sn+Sb/C mixture as an example for alloy electrodes. Herein, it is found that longer milling leads to a more stable composite formation with carbon in order to enhance the cycle life for Sn+Sb and SnSb by galvanostatic cycling and in situ dilatometry studies. In the second publication (doi: 10.1016/j.powera.2020.100031) Cu3P is studied as a transition metal compound electrode, which is found to show a better electrochemical performance for the use of an ether electrolyte in comparison to carbonate electrolytes for both, LIBs and NIBs. In the last publication, (doi: 10.1002/adfm.201910583) a thiophosphate (Cu3PS4) was considered as an electrode material for the first time for NIBs which shows a by sulfur dominated redox activity with capacities of about 450 mAh g−1 after 1400 cycles @1 A g−1 in a voltage window between 0.01 and 2.5 V vs. Na+/Na. The results of this dissertation improve the understanding of using alloy and transition metal compound based conversion electrodes in diglyme electrolytes | |
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Datensatz im Suchindex
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| discipline | Elektrotechnik / Elektronik / Nachrichtentechnik |
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| spelling | Brehm, Wolfgang 1989- Verfasser (DE-588)1251027164 aut Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes von Wolfgang Brehm Jena 2021 131 Seiten Illustrationen, Diagramme txt rdacontent n rdamedia nc rdacarrier Kumulative Dissertation, enthält Zeitschriftenaufsätze Tag der Verteidigung: 01.09.2021 Dissertation Friedrich-Schiller-Universität Jena 2021 The strongly limited abundance of lithium (Li) and also that of other elements contained in a Li-ion battery (LIB) leads to the need of low-cost and more abundant alternatives. Sodium-ion batteries (SIBs) are a promising alternative as sodium (Na) cells show similar properties to the Li analogues in many cases and allow the use of more environmentally friendly and/or more abundant electrode materials. In comparison to the well-known and commercially used intercalation type electrodes, conversion electrodes enable the transfer of several electrons per formula unit of an electrode material and hence provide higher specific capacities. Conversion electrodes may be classified into alloys and transition metal compounds, both being studied within this dissertation. The first publication (doi: 10.1002/ente.201900389) in this cumulative thesis deals about the influence of the ball milling time onto the electrochemical performance for an SnSb/C intermetallic phase and Sn+Sb/C mixture as an example for alloy electrodes. Herein, it is found that longer milling leads to a more stable composite formation with carbon in order to enhance the cycle life for Sn+Sb and SnSb by galvanostatic cycling and in situ dilatometry studies. In the second publication (doi: 10.1016/j.powera.2020.100031) Cu3P is studied as a transition metal compound electrode, which is found to show a better electrochemical performance for the use of an ether electrolyte in comparison to carbonate electrolytes for both, LIBs and NIBs. In the last publication, (doi: 10.1002/adfm.201910583) a thiophosphate (Cu3PS4) was considered as an electrode material for the first time for NIBs which shows a by sulfur dominated redox activity with capacities of about 450 mAh g−1 after 1400 cycles @1 A g−1 in a voltage window between 0.01 and 2.5 V vs. Na+/Na. The results of this dissertation improve the understanding of using alloy and transition metal compound based conversion electrodes in diglyme electrolytes Zusammenfassungen in deutscher und englischer Sprache Konversionselektron (DE-588)4165200-9 gnd rswk-swf Lithium-Ionen-Akkumulator (DE-588)7681721-0 gnd rswk-swf Natrium-Ionen-Akkumulator (DE-588)1096779579 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Natrium-Ionen-Akkumulator (DE-588)1096779579 s Lithium-Ionen-Akkumulator (DE-588)7681721-0 s Konversionselektron (DE-588)4165200-9 s DE-604 Jena (DE-588)4028557-1 gnd uvp |
| spellingShingle | Brehm, Wolfgang 1989- Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes Konversionselektron (DE-588)4165200-9 gnd Lithium-Ionen-Akkumulator (DE-588)7681721-0 gnd Natrium-Ionen-Akkumulator (DE-588)1096779579 gnd |
| subject_GND | (DE-588)4165200-9 (DE-588)7681721-0 (DE-588)1096779579 (DE-588)4113937-9 |
| title | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes |
| title_auth | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes |
| title_exact_search | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes |
| title_exact_search_txtP | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes |
| title_full | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes von Wolfgang Brehm |
| title_fullStr | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes von Wolfgang Brehm |
| title_full_unstemmed | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes von Wolfgang Brehm |
| title_short | Mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes |
| title_sort | mechanochemically synthesized conversion electrodes and their application in sodium and lithium ion batteries with diglyme electrolytes |
| topic | Konversionselektron (DE-588)4165200-9 gnd Lithium-Ionen-Akkumulator (DE-588)7681721-0 gnd Natrium-Ionen-Akkumulator (DE-588)1096779579 gnd |
| topic_facet | Konversionselektron Lithium-Ionen-Akkumulator Natrium-Ionen-Akkumulator Hochschulschrift |
| work_keys_str_mv | AT brehmwolfgang mechanochemicallysynthesizedconversionelectrodesandtheirapplicationinsodiumandlithiumionbatterieswithdiglymeelectrolytes |