"In-N-out" design enabling high-content triethyl phosphate-based non-flammable and high-conductivity electrolytes for lithium-ion batteries
文献类型：期刊论文
| 作者 | Liu, Mengchuang4,5; Ma, Fenfen1; Ge, Zicheng5; Zeng, Ziqi5; Wu, Qiang5; Yan, Hui3; Wu, Yuanke5; Lei, Sheng5; Zhu, Yanli2; Cheng, Shijie5 |
| 刊名 | SCIENCE CHINA-CHEMISTRY
 |
| 出版日期 | 2023-09-20 |
| 页码 | 8 |
| 关键词 | lithium-ion batteries graphite anode high-phosphate-content electrolytes non-flammable electrolyte excellent ion conductivity standard concentration |
| ISSN号 | 1674-7291 |
| DOI | 10.1007/s11426-023-1803-x |
| 通讯作者 | Zeng, Ziqi(ziqizeng@hust.edu.cn) ; Zhu, Yanli(zhuyanli1999@bit.edu.cn) ; Xie, Jia(xiejia@hust.edu.cn) |
| 英文摘要 | Safety issues related to flammable electrolytes in lithium-ion batteries (LIBs) remain a major challenge for their extended applications. The use of non-flammable phosphate-based electrolytes has proved the validity in inhibiting the combustion of LIBs. However, the strong interaction between Li+ and phosphate leads to a dominant solid electrolyte interphase (SEI) with limited electronic shielding, resulting in the poor Li+ intercalation at the graphite (Gr) anode when using high-phosphate-content electrolytes. To mitigate this issue and improve Li+ insertion, we propose an "In-N-Out" strategy to render phosphates "non-coordinative". By employing a combination of strongly polar solvents for a "block effect" and weakly polar solvents for a "drag effect", we reduce the Li+-phosphate interaction. As a result, phosphates remain in the electrolyte phase ("In"), minimizing their impact on the incompatibility with the Gr electrode ("Out"). We have developed a non-flammable electrolyte with high triethyl phosphate (TEP) content (>60 wt.%), demonstrating the excellent ion conductivity (5.94 mS cm (-1) at 30 degrees C) and reversible Li+ intercalation at a standard concentration (similar to 1 mol L (-1)). This approach enables the manipulation of multiple electrolyte functions and holds the promise for the development of safe electrochemical energy storage systems using non flammable electrolytes. |
| 资助项目 | National Key Research and Development Program of China[2022YFB2404800] ; National Natural Science Foundation of China[52022013] ; National Natural Science Foundation of China[51974031] ; National Natural Science Foundation of China[U22A20438] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001070339100002 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/179376]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zeng, Ziqi; Zhu, Yanli; Xie, Jia |
| 作者单位 | 1.GuSu Lab Mat, Suzhou 215123, Peoples R China 2.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110000, Peoples R China 4.Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Wuhan 430074, Peoples R China 5.Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Mengchuang,Ma, Fenfen,Ge, Zicheng,et al. "In-N-out" design enabling high-content triethyl phosphate-based non-flammable and high-conductivity electrolytes for lithium-ion batteries[J]. SCIENCE CHINA-CHEMISTRY,2023:8. |
| APA | Liu, Mengchuang.,Ma, Fenfen.,Ge, Zicheng.,Zeng, Ziqi.,Wu, Qiang.,...&Xie, Jia.(2023)."In-N-out" design enabling high-content triethyl phosphate-based non-flammable and high-conductivity electrolytes for lithium-ion batteries.SCIENCE CHINA-CHEMISTRY,8. |
| MLA | Liu, Mengchuang,et al.""In-N-out" design enabling high-content triethyl phosphate-based non-flammable and high-conductivity electrolytes for lithium-ion batteries".SCIENCE CHINA-CHEMISTRY (2023):8. |
入库方式： OAI收割
来源：金属研究所
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