Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance
Lithium–sulfur batteries (LSBs) have attracted wide attention, but the shuttle effect of polysulfide hinders their further practical application. Herein, we develop a new strategy to construct a Ketjen black@zeolite imidazole framework-8/polypropylene composite separator. Such a separator consists o...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/23/4210 |
| _version_ | 1797507275250728960 |
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| author | Bingyi Ma Xin Zhang Xiaoqian Deng Sheng Huang Min Xiao Shuanjin Wang Dongmei Han Yuezhong Meng |
| author_facet | Bingyi Ma Xin Zhang Xiaoqian Deng Sheng Huang Min Xiao Shuanjin Wang Dongmei Han Yuezhong Meng |
| author_sort | Bingyi Ma |
| collection | DOAJ |
| description | Lithium–sulfur batteries (LSBs) have attracted wide attention, but the shuttle effect of polysulfide hinders their further practical application. Herein, we develop a new strategy to construct a Ketjen black@zeolite imidazole framework-8/polypropylene composite separator. Such a separator consists of Ketjen black (KB), zeolite imidazole framework-8 (ZIF-8) and polypropylene (PP) with a low coating load of 0.06 mg cm<sup>−2</sup> and is denoted as KB@ZIF-8/PP. KB@ZIF-8/PP can absorb polysulfides because of the Lewis acid-base interaction between ZIF-8 and polysulfides. This interaction can reduce the dissolution of polysulfides and suppress the shuttle effect, thereby enhancing the electrochemical performance of the battery. When tested at a current density of 0.1 C, an LSB with a KB@ZIF-8/PP separator exhibits low polarization and achieves a high initial capacity of 1235.6 mAh/g and a high capacity retention rate of 59.27% after 100 cycles. |
| first_indexed | 2024-03-10T04:46:14Z |
| format | Article |
| id | doaj.art-328f57431cb94182a285f570f7db4811 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T04:46:14Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-328f57431cb94182a285f570f7db48112023-11-23T02:54:34ZengMDPI AGPolymers2073-43602021-12-011323421010.3390/polym13234210Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical PerformanceBingyi Ma0Xin Zhang1Xiaoqian Deng2Sheng Huang3Min Xiao4Shuanjin Wang5Dongmei Han6Yuezhong Meng7School of Chemical Engineering and Technology, Sun Yat-sen Univeristy, Zhuhai 519082, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen Univeristy, Zhuhai 519082, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen Univeristy, Zhuhai 519082, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen Univeristy, Zhuhai 519082, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen Univeristy, Zhuhai 519082, ChinaLithium–sulfur batteries (LSBs) have attracted wide attention, but the shuttle effect of polysulfide hinders their further practical application. Herein, we develop a new strategy to construct a Ketjen black@zeolite imidazole framework-8/polypropylene composite separator. Such a separator consists of Ketjen black (KB), zeolite imidazole framework-8 (ZIF-8) and polypropylene (PP) with a low coating load of 0.06 mg cm<sup>−2</sup> and is denoted as KB@ZIF-8/PP. KB@ZIF-8/PP can absorb polysulfides because of the Lewis acid-base interaction between ZIF-8 and polysulfides. This interaction can reduce the dissolution of polysulfides and suppress the shuttle effect, thereby enhancing the electrochemical performance of the battery. When tested at a current density of 0.1 C, an LSB with a KB@ZIF-8/PP separator exhibits low polarization and achieves a high initial capacity of 1235.6 mAh/g and a high capacity retention rate of 59.27% after 100 cycles.https://www.mdpi.com/2073-4360/13/23/4210lithium–sulfur batteryseparatorshuttle effectmetal-organic frameworkchemisorption |
| spellingShingle | Bingyi Ma Xin Zhang Xiaoqian Deng Sheng Huang Min Xiao Shuanjin Wang Dongmei Han Yuezhong Meng Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance Polymers lithium–sulfur battery separator shuttle effect metal-organic framework chemisorption |
| title | Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance |
| title_full | Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance |
| title_fullStr | Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance |
| title_full_unstemmed | Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance |
| title_short | Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance |
| title_sort | construction of kb zif 8 pp composite separator for lithium sulfur batteries with enhanced electrochemical performance |
| topic | lithium–sulfur battery separator shuttle effect metal-organic framework chemisorption |
| url | https://www.mdpi.com/2073-4360/13/23/4210 |
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