Triethylbutylammonium bis(trifluoromethanesulphonyl)imide ionic liquid as an effective electrolyte additive for Li-ion batteries
文献类型：期刊论文
| 作者 | Wang, Zhongni1,2; Cai, Yingjun1; Dong, Tao1; Chen, Shimou1; Lu, Xingmei1 |
| 刊名 | IONICS
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 19期号:6页码:887-894 |
| 关键词 | Ionic liquid Li-ion battery Additive Rate property |
| 英文摘要 | Ionic liquids are promising additives for Li-ion batteries owing to its desirable physicochemical properties. Triethylbutylammonium bis(trifluoromethanesulphonyl)imide ([N-2224][Tf2N]) ionic liquid was synthesized and their physical and electrochemical properties were investigated. Among several quaternary ammonium ionic liquids, [N-2224][Tf2N] exhibited higher conductivity (1.31 mS cm(-1)), better thermal and electrochemical stabilities, and wide electrochemical window, i.e., more than 5.9 V. Standard solution was prepared by dissolving lithium bis(trifluoromethanesulphonyl)imide (LiTf2N) in ethylene carbonates/dimethyl carbonate (1:1, by weight). The conductivity for the electrolyte containing [N-2224][Tf2N] and the mixed electrolyte without additives at 25 A degrees C are 10.24 and 8.79 mS cm(-1), respectively. LiFePO4 half-cell containing 0.6 mol L-1 LiTf2N-based organic electrolyte with [N-2224][Tf2N] showed relatively high initial discharge capacity and coulombic efficiency at first cycle. It is found that the mix [N-2224][Tf2N] electrolyte exhibits relatively high-rate capacity. The capacity retention of half-cell containing [N-2224][Tf2N] is 2 % more than without additive at 0.2 C. However, the rate capacity retention of the half-cell with mix [N-2224][Tf2N] electrolyte is above 10 % more than without additive at 0.5 C. The results showed that [N-2224][Tf2N] was an effective electrolyte additive in LiFePO4 half-cell. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Physics |
| 关键词[WOS] | TEMPERATURE MOLTEN-SALTS ; ELECTROCHEMICAL PROPERTIES ; POTENTIAL ELECTROLYTES ; VINYLENE CARBONATE ; LITHIUM ; BEHAVIOR ; VISCOSITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319438500004 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13560]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn,State Key Lab Multiphas, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhongni,Cai, Yingjun,Dong, Tao,et al. Triethylbutylammonium bis(trifluoromethanesulphonyl)imide ionic liquid as an effective electrolyte additive for Li-ion batteries[J]. IONICS,2013,19(6):887-894. |
| APA | Wang, Zhongni,Cai, Yingjun,Dong, Tao,Chen, Shimou,&Lu, Xingmei.(2013).Triethylbutylammonium bis(trifluoromethanesulphonyl)imide ionic liquid as an effective electrolyte additive for Li-ion batteries.IONICS,19(6),887-894. |
| MLA | Wang, Zhongni,et al."Triethylbutylammonium bis(trifluoromethanesulphonyl)imide ionic liquid as an effective electrolyte additive for Li-ion batteries".IONICS 19.6(2013):887-894. |
入库方式： OAI收割
来源：过程工程研究所
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