Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Dinitrile compound containing ethylene oxide moiety with enhanced solubility of lithium salts as electrolyte solvent for high-voltage lithium-ion batteries | |
Xie, Bo1,2; Mai, Yongjin1; Wang, Jinglun1 ; Luo, Hao1; Yan, Xiaodan1; Zhang, Lingzhi1
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| 2015-04-01 | |
| Source Publication | IONICS
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| Volume | 21Issue:4Pages:909-915 |
| Abstract | A dinitrile compound containing ethylene oxide moiety (4,7-dioxa-1,10-decanedinitrile, NEON) is synthesized as an electrolyte solvent for high-voltage lithium-ion batteries. The introduction of ethylene oxide moiety into the conventional aprotic aliphatic dinitrile compounds improves the solubility of lithium hexafluorophosphate (LiPF6) used commercially in the lithium-ion battery industry. The electrochemical performances of the NEON-based electrolyte (0.8 M LiPF6 + 0.2 M lithium oxalyldifluoroborate in NEON:EC:DEC, v:v:v = 1:1:1) are evaluated in graphite/Li, LiCoO2/Li, and LiCoO2/graphite cells. Half-cell tests show that the electrolyte exhibits significantly improved compatibility with graphite by the addition of vinylene carbonate and lithium oxalyldifluoroborate and excellent cycling stability with a capacity retention of 97 % after 50 cycles at a cutoff voltage of 4.4 V in LiCoO2/Li cell. A comparative experiment in LiCoO2/graphite full cells shows that the electrolyte (NEON:EC:DEC, v:v:v = 1:1:1) exhibits improved cycling stability at 4.4 V compared with the electrolyte without NEON (EC:DEC, v:v = 1:1), demonstrating that NEON has a great potential as an electrolyte solvent for the high-voltage application in lithium-ion batteries. |
| Subtype | Article |
| Keyword | Lithium-ion Battery Dinitrile Lithium Hexafluorophosphate High-voltage Electrolyte |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1007/s11581-014-1272-3 |
| WOS Subject Extended | Chemistry ; Electrochemistry ; Physics |
| WOS Keyword | CATHODE MATERIALS ; RECENT PROGRESS |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter |
| WOS ID | WOS:000351508800002 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/9098 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Xie, Bo,Mai, Yongjin,Wang, Jinglun,et al. Dinitrile compound containing ethylene oxide moiety with enhanced solubility of lithium salts as electrolyte solvent for high-voltage lithium-ion batteries[J]. IONICS,2015,21(4):909-915. |
| APA | Xie, Bo,Mai, Yongjin,Wang, Jinglun,Luo, Hao,Yan, Xiaodan,&Zhang, Lingzhi.(2015).Dinitrile compound containing ethylene oxide moiety with enhanced solubility of lithium salts as electrolyte solvent for high-voltage lithium-ion batteries.IONICS,21(4),909-915. |
| MLA | Xie, Bo,et al."Dinitrile compound containing ethylene oxide moiety with enhanced solubility of lithium salts as electrolyte solvent for high-voltage lithium-ion batteries".IONICS 21.4(2015):909-915. |
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