Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite Anode
Abstract The development of lithium‐sulfur (Li‐S) batteries is severely limited by the shuttle effect and instability of Li‐metal anode. Constructing Li‐ion S batteries (LISBs), by using more stable commercial graphite (Gr) anode instead of Li‐metal, is an effective way to realize long‐cycle‐life Li...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-10-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202302966 |
| _version_ | 1797648658565431296 |
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| author | Dan Huang Zhicheng Wang Ran Han Shoulei Hu Jiangyan Xue Yumeng Wei Haiqi Song Yang Liu Jingjing Xu Jun Ge Xiaodong Wu |
| author_facet | Dan Huang Zhicheng Wang Ran Han Shoulei Hu Jiangyan Xue Yumeng Wei Haiqi Song Yang Liu Jingjing Xu Jun Ge Xiaodong Wu |
| author_sort | Dan Huang |
| collection | DOAJ |
| description | Abstract The development of lithium‐sulfur (Li‐S) batteries is severely limited by the shuttle effect and instability of Li‐metal anode. Constructing Li‐ion S batteries (LISBs), by using more stable commercial graphite (Gr) anode instead of Li‐metal, is an effective way to realize long‐cycle‐life Li‐S batteries. However, Gr electrode is usually incompatible with the ether‐based electrolytes commonly used for Li‐S batteries due to the Li+‐ether complex co‐intercalation into Gr interlayers. Herein, a solvent molecule structure regulation strategy is provided to weaken the Li+‐solvent binding by increasing steric hindrance and electronegativity, to accelerate Li+ de‐solvation process and prevent Li+‐ether complex co‐intercalation into Gr anode. Meanwhile, the weakly solvating power of solvent can suppress the shuttle effect of lithium polysulfides and makes more anions participate in Li+ solvation structure to generate a stable anion‐derived solid electrolyte interface on Gr surface. Therefore, a LISB coin‐cell consisting of lithiated graphite anode and S@C cathode displays a stable capacity of ≈770 mAh g−1 within 200 cycles. Furthermore, an unprecedented practical LISB pouch‐cell with a high Gr loading (≈10.5 mg cm−2) also delivers a high initial capacity of 802.3 mAh g−1 and releases a stable capacity of 499.1 mAh g−1 with a high Coulombic efficiency (≈95.9%) after 120 cycles. |
| first_indexed | 2024-03-11T15:35:05Z |
| format | Article |
| id | doaj.art-6ba1d1f8fa634e94afab796486e893f2 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-11T15:35:05Z |
| publishDate | 2023-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-6ba1d1f8fa634e94afab796486e893f22023-10-26T20:10:11ZengWileyAdvanced Science2198-38442023-10-011030n/an/a10.1002/advs.202302966Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite AnodeDan Huang0Zhicheng Wang1Ran Han2Shoulei Hu3Jiangyan Xue4Yumeng Wei5Haiqi Song6Yang Liu7Jingjing Xu8Jun Ge9Xiaodong Wu10School of Nano‐Tech and Nano‐Bionics University of Science and Technology of China Hefei 230026 ChinaSchool of Nano‐Tech and Nano‐Bionics University of Science and Technology of China Hefei 230026 Chinai‐lab Suzhou Institute of Nano‐Tech and Nano‐Bionics (SINANO) Chinese Academy of Sciences Suzhou 215123 Chinai‐lab Suzhou Institute of Nano‐Tech and Nano‐Bionics (SINANO) Chinese Academy of Sciences Suzhou 215123 Chinai‐lab Suzhou Institute of Nano‐Tech and Nano‐Bionics (SINANO) Chinese Academy of Sciences Suzhou 215123 Chinai‐lab Suzhou Institute of Nano‐Tech and Nano‐Bionics (SINANO) Chinese Academy of Sciences Suzhou 215123 Chinai‐lab Suzhou Institute of Nano‐Tech and Nano‐Bionics (SINANO) Chinese Academy of Sciences Suzhou 215123 ChinaSchool of Nano‐Tech and Nano‐Bionics University of Science and Technology of China Hefei 230026 ChinaSchool of Nano‐Tech and Nano‐Bionics University of Science and Technology of China Hefei 230026 Chinai‐lab Suzhou Institute of Nano‐Tech and Nano‐Bionics (SINANO) Chinese Academy of Sciences Suzhou 215123 ChinaSchool of Nano‐Tech and Nano‐Bionics University of Science and Technology of China Hefei 230026 ChinaAbstract The development of lithium‐sulfur (Li‐S) batteries is severely limited by the shuttle effect and instability of Li‐metal anode. Constructing Li‐ion S batteries (LISBs), by using more stable commercial graphite (Gr) anode instead of Li‐metal, is an effective way to realize long‐cycle‐life Li‐S batteries. However, Gr electrode is usually incompatible with the ether‐based electrolytes commonly used for Li‐S batteries due to the Li+‐ether complex co‐intercalation into Gr interlayers. Herein, a solvent molecule structure regulation strategy is provided to weaken the Li+‐solvent binding by increasing steric hindrance and electronegativity, to accelerate Li+ de‐solvation process and prevent Li+‐ether complex co‐intercalation into Gr anode. Meanwhile, the weakly solvating power of solvent can suppress the shuttle effect of lithium polysulfides and makes more anions participate in Li+ solvation structure to generate a stable anion‐derived solid electrolyte interface on Gr surface. Therefore, a LISB coin‐cell consisting of lithiated graphite anode and S@C cathode displays a stable capacity of ≈770 mAh g−1 within 200 cycles. Furthermore, an unprecedented practical LISB pouch‐cell with a high Gr loading (≈10.5 mg cm−2) also delivers a high initial capacity of 802.3 mAh g−1 and releases a stable capacity of 499.1 mAh g−1 with a high Coulombic efficiency (≈95.9%) after 120 cycles.https://doi.org/10.1002/advs.202302966ether electrolytesgraphitelithium‐ion sulfur batterieslong cycle life |
| spellingShingle | Dan Huang Zhicheng Wang Ran Han Shoulei Hu Jiangyan Xue Yumeng Wei Haiqi Song Yang Liu Jingjing Xu Jun Ge Xiaodong Wu Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite Anode Advanced Science ether electrolytes graphite lithium‐ion sulfur batteries long cycle life |
| title | Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite Anode |
| title_full | Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite Anode |
| title_fullStr | Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite Anode |
| title_full_unstemmed | Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite Anode |
| title_short | Long‐Life Lithium‐Ion Sulfur Pouch Battery Enabled by Regulating Solvent Molecules and Using Lithiated Graphite Anode |
| title_sort | long life lithium ion sulfur pouch battery enabled by regulating solvent molecules and using lithiated graphite anode |
| topic | ether electrolytes graphite lithium‐ion sulfur batteries long cycle life |
| url | https://doi.org/10.1002/advs.202302966 |
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