Improving the High-Temperature Resilience of LiMn2O4 Based Batteries: LiFNFSI an Effective Salt
文献类型：期刊论文
| 作者 | Zhou, SS ; Han, HB ; Nie, J ; Armand, M ; Zhou, ZB ; Huang, XJ |
| 刊名 | JOURNAL OF THE ELECTROCHEMICAL SOCIETY
 |
| 出版日期 | 2012 |
| 卷号 | 159期号:8页码:A1158 |
| 关键词 | LITHIUM-ION BATTERIES ELEVATED-TEMPERATURE SPINEL ELECTRODES NONAQUEOUS ELECTROLYTES CATHODE MATERIALS CYCLING BEHAVIOR LI PERFORMANCE CELLS 55-DEGREES-C |
| ISSN号 | 0013-4651 |
| 通讯作者 | Zhou, SS: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Li(FSO2)(C4F9SO2)N (LiFNFSI) has been investigated as a single electrolyte salt to improve the stability of LiMn2O4 at 60 degrees C. The performances of LiFNFSI as an electrolyte salt have been comparatively studied with those of LiPF6 in a mixture of ethylene carbonate: dimethyl methyl carbonate (EC:DMC, v/v, 1: 1), in terms of separator wettability, battery cycling performance, dissolution of Mn2+ ions into the electrolytes, AC impedance and morphology evolution of electrodes. The wetting ability of the LiFNFSI based electrolyte with the battery materials is better, indicated by a smaller electrolyte/separator contact angle and lower AC impedances for LiMn2O4/Li and Li/Li cells. In addition, Mn2+ ions dissolution from LiMn2O4 cathode into the electrolytes at 60 degrees C is significantly suppressed. The LiMn2O4/Li cell with 1M LiFNFSI/EC:DMC (1:1, v/v) could be cycled over 400 times at 60 degrees C, while that with 1M LiPF6/EC: DMC (1: 1, v/v) failed rapidly after 38 cycles. These results suggest that LiFNFSI would be a highly potential contender to replace LiPF6 to extend the cycle life of LiMn2O4 battery at elevated temperatures. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.026208jes] All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences (CAS) [KJCX2-YW-W26]; National Natural Science Foundation of China [50730005, 51172083] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39678]  |
| 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 | Zhou, SS,Han, HB,Nie, J,et al. Improving the High-Temperature Resilience of LiMn2O4 Based Batteries: LiFNFSI an Effective Salt[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2012,159(8):A1158. |
| APA | Zhou, SS,Han, HB,Nie, J,Armand, M,Zhou, ZB,&Huang, XJ.(2012).Improving the High-Temperature Resilience of LiMn2O4 Based Batteries: LiFNFSI an Effective Salt.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,159(8),A1158. |
| MLA | Zhou, SS,et al."Improving the High-Temperature Resilience of LiMn2O4 Based Batteries: LiFNFSI an Effective Salt".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 159.8(2012):A1158. |
入库方式： OAI收割
来源：物理研究所
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