Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S Battery
The development of solid-state polymer electrolytes is an effective way to overcome the notorious shuttle effect of polysulfides in traditional liquid lithium sulfur batteries. In this paper, cationic cyclopropenium based cross-linked polymer was firstly prepared with the one pot method, and then th...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-09-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/11/10/2562 |
| _version_ | 1797513647832956928 |
|---|---|
| author | Shuang Lian Yu Wang Haifeng Ji Xiaojie Zhang Jingjing Shi Yi Feng Xiongwei Qu |
| author_facet | Shuang Lian Yu Wang Haifeng Ji Xiaojie Zhang Jingjing Shi Yi Feng Xiongwei Qu |
| author_sort | Shuang Lian |
| collection | DOAJ |
| description | The development of solid-state polymer electrolytes is an effective way to overcome the notorious shuttle effect of polysulfides in traditional liquid lithium sulfur batteries. In this paper, cationic cyclopropenium based cross-linked polymer was firstly prepared with the one pot method, and then the counter ion was replaced by TFSI<sup>−</sup> anion using simple ion replacement. Cationic cyclopropenium hyper-crosslinked polymer (HP) was introduced into a polyethylene oxide (PEO) matrix with the solution casting method to prepare a composite polymer electrolyte membrane. By adding HP@TFSI to the PEO-based electrolyte, the mechanical and electrochemical properties of the solid-state lithium-sulfur batteries were significantly improved. The PEO-20%HP@TFSI electrolyte shows the highest Li<sup>+</sup> ionic conductivity at 60 °C (4.0 × 10<sup>−4</sup> S·cm<sup>−1</sup>) and the highest mechanical strength. In the PEO matrix, uniform distribution of HP@TFSI inhibits crystallization and weakens the interaction between each PEO chain. Compared with pure PEO/LiTFSI electrolyte, the PEO-20%HP@TFSI electrolyte shows lower interface resistance and higher interface stability with lithium anode. The lithium sulfur battery based on the PEO-20%HP@TFSI electrolyte shows excellent electrochemical performance, high Coulombic efficiency and high cycle stability. After 500 cycles, the capacity of the lithium-sulfur battery based on PEO-20%HP@TFSI electrolytes keeps approximately 410 mAh·g<sup>−1</sup> at 1 C, the Coulomb efficiency is close to 100%, and the cycle capacity decay rate is 0.082%. |
| first_indexed | 2024-03-10T06:20:28Z |
| format | Article |
| id | doaj.art-ca568dd5be8d48479ac63554ea5eaa0d |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T06:20:28Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-ca568dd5be8d48479ac63554ea5eaa0d2023-11-22T19:23:12ZengMDPI AGNanomaterials2079-49912021-09-011110256210.3390/nano11102562Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S BatteryShuang Lian0Yu Wang1Haifeng Ji2Xiaojie Zhang3Jingjing Shi4Yi Feng5Xiongwei Qu6Hebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, 8 Guangrong Street, Tianjin 300130, ChinaHebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, 8 Guangrong Street, Tianjin 300130, ChinaHebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, 8 Guangrong Street, Tianjin 300130, ChinaHebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, 8 Guangrong Street, Tianjin 300130, ChinaSchool of Science, Nantong University, Nantong 226019, Jiangsu, ChinaHebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, 8 Guangrong Street, Tianjin 300130, ChinaHebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, 8 Guangrong Street, Tianjin 300130, ChinaThe development of solid-state polymer electrolytes is an effective way to overcome the notorious shuttle effect of polysulfides in traditional liquid lithium sulfur batteries. In this paper, cationic cyclopropenium based cross-linked polymer was firstly prepared with the one pot method, and then the counter ion was replaced by TFSI<sup>−</sup> anion using simple ion replacement. Cationic cyclopropenium hyper-crosslinked polymer (HP) was introduced into a polyethylene oxide (PEO) matrix with the solution casting method to prepare a composite polymer electrolyte membrane. By adding HP@TFSI to the PEO-based electrolyte, the mechanical and electrochemical properties of the solid-state lithium-sulfur batteries were significantly improved. The PEO-20%HP@TFSI electrolyte shows the highest Li<sup>+</sup> ionic conductivity at 60 °C (4.0 × 10<sup>−4</sup> S·cm<sup>−1</sup>) and the highest mechanical strength. In the PEO matrix, uniform distribution of HP@TFSI inhibits crystallization and weakens the interaction between each PEO chain. Compared with pure PEO/LiTFSI electrolyte, the PEO-20%HP@TFSI electrolyte shows lower interface resistance and higher interface stability with lithium anode. The lithium sulfur battery based on the PEO-20%HP@TFSI electrolyte shows excellent electrochemical performance, high Coulombic efficiency and high cycle stability. After 500 cycles, the capacity of the lithium-sulfur battery based on PEO-20%HP@TFSI electrolytes keeps approximately 410 mAh·g<sup>−1</sup> at 1 C, the Coulomb efficiency is close to 100%, and the cycle capacity decay rate is 0.082%.https://www.mdpi.com/2079-4991/11/10/2562solid-state electrolytecyclopropenium cationic-based polymerpolyethylene oxideLi<sup>+</sup> conductivitylithium sulfur battery |
| spellingShingle | Shuang Lian Yu Wang Haifeng Ji Xiaojie Zhang Jingjing Shi Yi Feng Xiongwei Qu Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S Battery Nanomaterials solid-state electrolyte cyclopropenium cationic-based polymer polyethylene oxide Li<sup>+</sup> conductivity lithium sulfur battery |
| title | Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S Battery |
| title_full | Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S Battery |
| title_fullStr | Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S Battery |
| title_full_unstemmed | Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S Battery |
| title_short | Cationic Cyclopropenium-Based Hyper-Crosslinked Polymer Enhanced Polyethylene Oxide Composite Electrolyte for All-Solid-State Li-S Battery |
| title_sort | cationic cyclopropenium based hyper crosslinked polymer enhanced polyethylene oxide composite electrolyte for all solid state li s battery |
| topic | solid-state electrolyte cyclopropenium cationic-based polymer polyethylene oxide Li<sup>+</sup> conductivity lithium sulfur battery |
| url | https://www.mdpi.com/2079-4991/11/10/2562 |
| work_keys_str_mv | AT shuanglian cationiccyclopropeniumbasedhypercrosslinkedpolymerenhancedpolyethyleneoxidecompositeelectrolyteforallsolidstatelisbattery AT yuwang cationiccyclopropeniumbasedhypercrosslinkedpolymerenhancedpolyethyleneoxidecompositeelectrolyteforallsolidstatelisbattery AT haifengji cationiccyclopropeniumbasedhypercrosslinkedpolymerenhancedpolyethyleneoxidecompositeelectrolyteforallsolidstatelisbattery AT xiaojiezhang cationiccyclopropeniumbasedhypercrosslinkedpolymerenhancedpolyethyleneoxidecompositeelectrolyteforallsolidstatelisbattery AT jingjingshi cationiccyclopropeniumbasedhypercrosslinkedpolymerenhancedpolyethyleneoxidecompositeelectrolyteforallsolidstatelisbattery AT yifeng cationiccyclopropeniumbasedhypercrosslinkedpolymerenhancedpolyethyleneoxidecompositeelectrolyteforallsolidstatelisbattery AT xiongweiqu cationiccyclopropeniumbasedhypercrosslinkedpolymerenhancedpolyethyleneoxidecompositeelectrolyteforallsolidstatelisbattery |