Preparation and Electrochemical Performance of Polyzwitterion Containing Intramolecular Salt as Solid Electrolytes for Lithium-ion Batteries
文献类型：期刊论文
| 作者 | Liu, Shu-chang1,2; Wu, Hai-ying1,2; Zhang, Ling-zhi1,2 |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 55期号:3页码:296-308 |
| 关键词 | Lithium metal battery Polymer electrolyte Polyzwitterion Poly(vinyl alcohol) |
| DOI | 10.11777/j.issn1000-3304.2023.23211 |
| 通讯作者 | Zhang, Ling-zhi(lzzhang@ms.giec.ac.cn) |
| 英文摘要 | Polymer electrolytes are known to be more effective in enhancing the safety and energy density of lithium-ion batteries as compared to organic electrolytes. However, the practical application of polymer electrolytes is hindered due to their low ionic conductivity, narrow electrochemical window, and incompatibility with lithium metal anode. In this work, a polyzwitterion (P(AMPSLi-IL)) containing intramolecular lithium salt of lithium bis(trifluoromethanesulphonyl)imide (LiTFSI) was designed and synthesized through a radical copolymerization of acryloyloxyethyltrimethyl ammonium bis(trifluoromethanesulphonyl)imide (AETATFSI) and lithium 2-acrylamido-2-methylpropanesulfonic acid (AMPSLi). A series of nanofiber membranes composed of poly(vinyl alcohol) (PVA) and P(AMPSLi-IL) were prepared by electrospinning technology. The nanofiber membrane with optimized ratio of PVA to P(AMPSLi-IL) shows a high tensile strength of 13.8 MPa and thermal decomposition temperature of 280 degrees C. The nanofiber membranes were in situ gelated in a based electrolyte (1 mol/ L LiFSI in EC) with tri(propylene glycol) diacrylate (TPGDA) as a crosslinking agent, which was used as a polymeric solid electrolyte. The optimized electrolyte of PVA9-P(AMPSLi-IL)(1) exhibited a high ionic conductivity of 2.87x10(-3) S center dot cm(-1) at room-temperature, high lithium transference number of 0.85 and oxidation potential of 4.34 V (versus Li/Li+). The symmetric Li|Li cell with the PVA9-P(AMPSLi-IL)(1) electrolyte shows an excellent cycle stability for over 1800 h, demonstrating a great compatibility between Li anode and the PVA9-P(AMPSLi-IL)(1) electrolyte. The LFP|Li half cell with the PVA9-P(AMPSLi-IL)(1) electrolyte delivers an initial discharge capacity of 145.7 mAh center dot g(-1) at 0.5 C with a capacity retention of 79.0% after 200 cycles. |
| WOS关键词 | POLYMER ELECTROLYTE ; LIQUID ; COPOLYMERS ; BEHAVIOR |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001208590800004 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41601]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Ling-zhi |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Shu-chang,Wu, Hai-ying,Zhang, Ling-zhi. Preparation and Electrochemical Performance of Polyzwitterion Containing Intramolecular Salt as Solid Electrolytes for Lithium-ion Batteries[J]. ACTA POLYMERICA SINICA,2024,55(3):296-308. |
| APA | Liu, Shu-chang,Wu, Hai-ying,&Zhang, Ling-zhi.(2024).Preparation and Electrochemical Performance of Polyzwitterion Containing Intramolecular Salt as Solid Electrolytes for Lithium-ion Batteries.ACTA POLYMERICA SINICA,55(3),296-308. |
| MLA | Liu, Shu-chang,et al."Preparation and Electrochemical Performance of Polyzwitterion Containing Intramolecular Salt as Solid Electrolytes for Lithium-ion Batteries".ACTA POLYMERICA SINICA 55.3(2024):296-308. |
入库方式： OAI收割
来源：广州能源研究所
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