Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur Batteries
A robust lithium-sulfur (Li–S) battery is constituted by a wide range of optimized fundamental parameters (e.g., amount of electrolyte, electrolyte additive, sulfur loading density, and the size of sulfur particles). In this paper, some other often-neglected “trivial” p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-05-01
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| Series: | Batteries |
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| Online Access: | http://www.mdpi.com/2313-0105/4/2/22 |
| _version_ | 1818672682817814528 |
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| author | Junbin Liao Zhibin Ye |
| author_facet | Junbin Liao Zhibin Ye |
| author_sort | Junbin Liao |
| collection | DOAJ |
| description | A robust lithium-sulfur (Li–S) battery is constituted by a wide range of optimized fundamental parameters (e.g., amount of electrolyte, electrolyte additive, sulfur loading density, and the size of sulfur particles). In this paper, some other often-neglected “trivial” parameters (including assembly pressure of the coil cells, thickness of spring/lithium foil in coin cells, sheet number of separator, and cut-off voltage) of Li–S batteries have been demonstrated to show pronounced effects on the battery performance. Our results indicate that the coin cell assembly pressure and sheet number of the separator play the important roles in suppressing polysulfide shuttling over battery cycling, which improves significantly the cycling life of Li–S batteries. The thickness of springs/lithium foils also affects the battery performance greatly. When switching the cut-off voltage of 1.5–3.0 V to narrower ones (1.7–2.5 V or 1.8–2.6 V), the cycling life of batteries at 0.2 C can be further enhanced to >300 cycles while with no drastic polysulfide shuttling. Adjusting these trivial parameters can thus synergistically improve the cycling performance of Li–S batteries. |
| first_indexed | 2024-12-17T07:43:47Z |
| format | Article |
| id | doaj.art-f7a99b26dd004610b74b4dd11000b94e |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-12-17T07:43:47Z |
| publishDate | 2018-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-f7a99b26dd004610b74b4dd11000b94e2022-12-21T21:58:05ZengMDPI AGBatteries2313-01052018-05-01422210.3390/batteries4020022batteries4020022Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur BatteriesJunbin Liao0Zhibin Ye1Bharti School of Engineering, Laurentian University, Sudbury, ON P3E 2C6, CanadaBharti School of Engineering, Laurentian University, Sudbury, ON P3E 2C6, CanadaA robust lithium-sulfur (Li–S) battery is constituted by a wide range of optimized fundamental parameters (e.g., amount of electrolyte, electrolyte additive, sulfur loading density, and the size of sulfur particles). In this paper, some other often-neglected “trivial” parameters (including assembly pressure of the coil cells, thickness of spring/lithium foil in coin cells, sheet number of separator, and cut-off voltage) of Li–S batteries have been demonstrated to show pronounced effects on the battery performance. Our results indicate that the coin cell assembly pressure and sheet number of the separator play the important roles in suppressing polysulfide shuttling over battery cycling, which improves significantly the cycling life of Li–S batteries. The thickness of springs/lithium foils also affects the battery performance greatly. When switching the cut-off voltage of 1.5–3.0 V to narrower ones (1.7–2.5 V or 1.8–2.6 V), the cycling life of batteries at 0.2 C can be further enhanced to >300 cycles while with no drastic polysulfide shuttling. Adjusting these trivial parameters can thus synergistically improve the cycling performance of Li–S batteries.http://www.mdpi.com/2313-0105/4/2/22lithium-sulfur batterytrivial parameterspolysulfide shuttlingassembly pressuresheet number of separator |
| spellingShingle | Junbin Liao Zhibin Ye Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur Batteries Batteries lithium-sulfur battery trivial parameters polysulfide shuttling assembly pressure sheet number of separator |
| title | Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur Batteries |
| title_full | Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur Batteries |
| title_fullStr | Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur Batteries |
| title_full_unstemmed | Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur Batteries |
| title_short | Nontrivial Effects of “Trivial” Parameters on the Performance of Lithium–Sulfur Batteries |
| title_sort | nontrivial effects of trivial parameters on the performance of lithium sulfur batteries |
| topic | lithium-sulfur battery trivial parameters polysulfide shuttling assembly pressure sheet number of separator |
| url | http://www.mdpi.com/2313-0105/4/2/22 |
| work_keys_str_mv | AT junbinliao nontrivialeffectsoftrivialparametersontheperformanceoflithiumsulfurbatteries AT zhibinye nontrivialeffectsoftrivialparametersontheperformanceoflithiumsulfurbatteries |