| A method for rapidly optimizing the composition of an electrolyte | |
Quan, Yin1,2,3; Li, Chunlei1,2,3 ; Zhang, Feilong1,2,3; Li, Baoqiang1,2,3; Zhang, Yulong1,2,3; Zhang, Ningshuang1,2,3; Li, Shiyou1,2,3
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| 2022-05 | |
| 发表期刊 | IONICS
 |
| ISSN | 0947-7047 |
| 卷号 | 28期号:5页码:2259-2265 |
| 摘要 | Optimization of the ratio of electrolyte components is an effective strategy to improve the electrochemical performance of lithium-ion batteries. Herein, a novel method combining sensitivity and simplex method (abbreviated as QY) is proposed for small-scale optimization of the fraction ratio of 1 mol L-1 LiPF6-ethylene carbonate (EC)/diethyl carbonate (DEC) (with the volume ratio of 1: 1). Firstly, the performance indexes (ionic conductivity, charge-transfer impedance, leakage current, and initial coulombic efficiency) that can be obtained within a relatively short time are selected, and then index normalization is performed to analyze the sensitivity of these indexes based on the change of electrolyte composition. Secondly, the leakage current and charge-transfer impedance are recognized as the main index that affect the performance of Li/LiNi0.5Co0.2Mn0.3O2 cells, and the composition is optimized to 1.03 mol L-1 LiPF6-EC/DEC (with the volume ratio of 1.05: 1). Finally, the improved performance of optimized electrolyte is certified, indicating that the method is suitable for optimization of a complex system in a short test period with fewer experiments. |
| 关键词 | Simplex method Evaluation index normalization Sensitivity Electrolyte composition |
| DOI | 10.1007/s11581-022-04500-y |
| 收录类别 | SCIE ; EI |
| 语种 | 英语 |
| WOS研究方向 | Chemistry ; Electrochemistry ; Physics |
| WOS类目 | Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter |
| WOS记录号 | WOS:000766037500001 |
| 出版者 | SPRINGER HEIDELBERG |
| EI入藏号 | 20221011762558 |
| EI主题词 | Electrolytes |
| EI分类号 | 702 Electric Batteries and Fuel Cells ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.1 Organic Compounds |
| 来源库 | WOS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/158112 |
| 专题 | 石油化工学院 |
| 通讯作者 | Li, Shiyou |
| 作者单位 | 1.Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Key Lab Low Carbon Energy & Chem Engn Gansu Prov, Lanzhou 730050, Peoples R China; 3.Gansu Engn Lab Elect Mat Lithium Ion Battery, Lanzhou 730050, Peoples R China |
| 第一作者单位 | 兰州理工大学 |
| 通讯作者单位 | 兰州理工大学 |
| 第一作者的第一单位 | 兰州理工大学 |
| 推荐引用方式 GB/T 7714 | Quan, Yin,Li, Chunlei,Zhang, Feilong,et al. A method for rapidly optimizing the composition of an electrolyte[J]. IONICS,2022,28(5):2259-2265. |
| APA | Quan, Yin.,Li, Chunlei.,Zhang, Feilong.,Li, Baoqiang.,Zhang, Yulong.,...&Li, Shiyou.(2022).A method for rapidly optimizing the composition of an electrolyte.IONICS,28(5),2259-2265. |
| MLA | Quan, Yin,et al."A method for rapidly optimizing the composition of an electrolyte".IONICS 28.5(2022):2259-2265. |
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| Quan-2022-A method f（1801KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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