Multilevel regulation of Li plus -solvent interaction for fluorophosphate-based nonflammable electrolyte enabling lithium-ion batteries with long calendar life
文献类型：期刊论文
| 作者 | Liu, Mengchuang1; Zeng, Ziqi2; Yan, Hui3; Wu, Qiang2; Wu, Yuanke2; Liu, Wei2; Lei, Sheng2; Liao, Cong2; Ai, Xinping4; Cheng, Shijie2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2024-09-15 |
| 卷号 | 496页码:9 |
| 关键词 | Lithium-ion batteries Tris(2,2,2-trifluoroethyl) phosphate Multilevel regulation Nonflammable electrolytes Long-cycle calendar life |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2024.154146 |
| 通讯作者 | Zeng, Ziqi(ziqizeng@hust.edu.cn) ; Xie, Jia(xiejia@hust.edu.cn) |
| 英文摘要 | Carbonate-based electrolytes have been instrumental in extending the applicability of lithium-ion batteries (LIBs). However, their inherent high flammability contributes to frequent safety incidents, posing formidable challenges for the evolution of next-generation LIBs. Non-flammable electrolytes incorporating triethyl fluorophosphate (TFP) emerges as a promising solution. Nevertheless, TFP's suboptimal reduction stability and limited electronic shielding of its reduction product impede compatibility with graphite (Gr) electrode. To address these challenges, we employ solvents as primary regulators to mitigate TFP-Li+ interaction. Simultaneously, anions serve as alternative regulators, preventing the formation of TFP-Li+ clusters during the cells' dynamic operation. This multilevel regulation enhances TFP's reduction stability throughout the entire lifespan of cells. Developed nonflammable electrolytes with high content of 83.3 vol% TFP enable Gr anodes achieving approximately 92.7 % capacity retention after 200 cycles. Practical 1Ah Gr||LiNi0.65Co0.15Mn0.2O2 pouch-cells deliver remarkable 96.5 % capacity retention after 600 cycles during 6 months of operation with a 99.98 % average CE. The extremely long-cycle calendar life and stability first verify the possibility of electrolytes containing high content TFP into commercial application. These findings not only introduce a fresh strategy for improving solvents' reduction stability, but also contribute to the advancement of safer LIBs, marking a significant step forward in battery research. |
| 资助项目 | National Natural Science Foundation of China[U22A20438] ; National Natural Science Foundation of China[52377208] ; Analytical and Testing Center of HUST |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001279490800001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; Analytical and Testing Center of HUST |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zeng, Ziqi; Xie, Jia |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Wuhan 430074, Peoples R China 2.Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Technol, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110000, Peoples R China 4.Wuhan Univ, Coll Chem & Mol Sci, Hubei Key Lab Electrochem Power Sources, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Mengchuang,Zeng, Ziqi,Yan, Hui,et al. Multilevel regulation of Li plus -solvent interaction for fluorophosphate-based nonflammable electrolyte enabling lithium-ion batteries with long calendar life[J]. CHEMICAL ENGINEERING JOURNAL,2024,496:9. |
| APA | Liu, Mengchuang.,Zeng, Ziqi.,Yan, Hui.,Wu, Qiang.,Wu, Yuanke.,...&Xie, Jia.(2024).Multilevel regulation of Li plus -solvent interaction for fluorophosphate-based nonflammable electrolyte enabling lithium-ion batteries with long calendar life.CHEMICAL ENGINEERING JOURNAL,496,9. |
| MLA | Liu, Mengchuang,et al."Multilevel regulation of Li plus -solvent interaction for fluorophosphate-based nonflammable electrolyte enabling lithium-ion batteries with long calendar life".CHEMICAL ENGINEERING JOURNAL 496(2024):9. |
入库方式： OAI收割
来源：金属研究所
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