The effects of substituting groups in cyclic carbonates for stable SEI formation on graphite anode of lithium batteries
文献类型：期刊论文
| 作者 | Wang, XJ ; Lee, HS ; Li, H ; Yang, XQ ; Huang, XJ |
| 刊名 | ELECTROCHEMISTRY COMMUNICATIONS
 |
| 出版日期 | 2010 |
| 卷号 | 12期号:3页码:386 |
| 关键词 | PROPYLENE CARBONATE ION BATTERIES ELECTROLYTES ALKALI INTERCALATION DECOMPOSITION REDUCTION BEHAVIOR ETHYLENE SOLVENT |
| ISSN号 | 1388-2481 |
| 通讯作者 | Li, H (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Monofluoropropylene carbonate (MFPC) and trifluoropropylene carbonate (TFPC) with a monofluoromethyl (or trifluoromethyl) replacing the methyl group in propylene carbonate (PC) as well as EC-CH(2)CH(2)Si(CH(3))(2)OSi(CH(3))(3) (Si-A) and EC-CH(2)CH(2)Si(CH(3))(3) (Si-B) have been synthesized. The charge-discharge studies in a Li/MCMB (mesocarbon microbeads) cell using electrolyte containing these compounds show that the solid electrolyte interphase (SE!) formation capability of MFPC/DMC (dimethyl carbonate) and TFPC/DMC are about the same as ethylene carbonate (EC)/DMC, and TFPC/PC/DMC is better than that of EC/PC/DMC, while MFPC/PC/DMC is poorer than the EC/PC/DMC. The superior SEI formation capability of TFPC could be attributed to the strong electron withdrawing group of CF(3), which promote the "ring opening" reaction. In contrast, the electron donating group CH(3) in the PC structure may demote the "ring opening" and cause the poor SEI formation. The results of MFPC with weaker electron withdrawing group give further support of this hypothesis. The bi-solvent electrolytes of Si-A/DMC and Si-B/DMC have comparable SEI formation capability as EC/DMC and TFPC/DMC, regardless of their bulky chains. This indicates that if proper chain structures are used, good SEI formation capability could be obtained for cyclic carbonate with bulky chains. These new solvents provide valuable information in studying the SEI formation mechanism and designing new electrolytes. (C) 2010 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | Nature Scientific Foundation of China [50730005, 60621061]; "973" project [2007CB936501]; US Department of Energy [DEAC02-98CH10886] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45106]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, XJ,Lee, HS,Li, H,et al. The effects of substituting groups in cyclic carbonates for stable SEI formation on graphite anode of lithium batteries[J]. ELECTROCHEMISTRY COMMUNICATIONS,2010,12(3):386. |
| APA | Wang, XJ,Lee, HS,Li, H,Yang, XQ,&Huang, XJ.(2010).The effects of substituting groups in cyclic carbonates for stable SEI formation on graphite anode of lithium batteries.ELECTROCHEMISTRY COMMUNICATIONS,12(3),386. |
| MLA | Wang, XJ,et al."The effects of substituting groups in cyclic carbonates for stable SEI formation on graphite anode of lithium batteries".ELECTROCHEMISTRY COMMUNICATIONS 12.3(2010):386. |
入库方式： OAI收割
来源：物理研究所
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