[1]王振峰,张小雪,李翠华,等.离子液体复合电解质与三元正极的相容性[J].深圳大学学报理工版,2015,32(3):251-256.[doi:10.3724/SP.J.1249.2015.03251]
 Wang Zhenfeng,Zhang Xiaoxue,Li Cuihua,et al.Compatibility of ternary cathode with ionic liquid-based composite electrolyte[J].Journal of Shenzhen University Science and Engineering,2015,32(3):251-256.[doi:10.3724/SP.J.1249.2015.03251]
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离子液体复合电解质与三元正极的相容性()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第32卷
期数:
2015年第3期
页码:
251-256
栏目:
材料科学
出版日期:
2015-05-20

文章信息/Info

Title:
Compatibility of ternary cathode with ionic liquid-based composite electrolyte
文章编号:
201503005
作者:
王振峰张小雪李翠华刘剑洪张黔玲
深圳大学化学与化工学院,深圳市功能高分子重点实验室,深圳 518060
Author(s):
Wang Zhenfeng Zhang Xiaoxue Li Cuihua Liu Jianhong and Zhang Qianling
College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen Key Laboratory of Functional Polymer, Shenzhen 518060, P.R.China
关键词:
应用电化学锂离子电池电解质离子液体相容性不燃性
Keywords:
applied electrochemistry lithium-ion batteries electrolyte ionic liquid compatibility non-flammability
分类号:
O 69
DOI:
10.3724/SP.J.1249.2015.03251
文献标志码:
A
摘要:
室温下合成离子液体N-甲基-N-丙基哌啶双(三氟甲烷磺酰)亚胺(N-methyl-N-propylpiperidinium bis(trifluoromethanesulfonyl)imide, PP13TFSI)和N-甲基-N-丙基吡咯烷双(三氟甲烷磺酰)亚胺(N-methyl-N-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide, PYR13TFSI),并与有机溶剂和双(三氟甲烷磺酰)亚胺锂(lithium bis(trifluoromethanesulphoyl)imide, LiTFSI)混合制备成复合电解质, 研究该电解质的热稳定性和不燃性能. 发现将其与锂离子电池三元正极材料镍钴锰酸锂LiCo1/3Mn1/3Ni1/3O2和锂片组装成CR-2032纽扣电池(LiCo1/3Mn1/3Ni1/3O2/电解质/锂),在0.1 C倍率下首次放电比容量为154.5 mA·h/g、库伦效率达到85.5%. 该复合电解质具有宽的电化学窗口、高的热稳定性、不燃性和良好的充放电循环性能.
Abstract:
N-methyl-N-propylpiperidinium bis(trifluoromethanesulfonyl)imide (PP13TFSI) and N-methyl-N-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR13TFSI) were synthesized at room temperature and mixed with organic solvents and lithium bis(trifluoromethanesulphonyl)imide (LiTFSI) to prepare the composite electrolyte. The thermal stability and non-flammability of the composite electrolyte were investigated. The electrolyte, LiCo1/3Mn1/3Ni1/3O2 cathode and lithium metal anode were encapsulated into CR-2032 coin cell (LiCo1/3Mn1/3Ni1/3O2/electrolyte/Li). The initial discharge capacity of the coin cell reaches 154.5 mA·h/g at the rate of 0.1 C, and the coulombic efficiency is 85.5%. The results show that the composite electrolytes possess characteristics including a wide electrochemical stability window, high thermal stability, non-flammability, and better cycle performance.

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备注/Memo

备注/Memo:
Received:2014-05-27;Revised:2015-01-31;Accepted:2015-02-06
Foundation:Major State Basic Research Development Program of China (613142020201); Scientific and Technological Research and Development Foundation of Shenzhen City (JCYJ20140418193546111)
Corresponding author:Professor Li Cuihua. E-mail: licuihuasz@163.com
Citation:Wang Zhenfeng, Zhang Xiaoxue, Li Cuihua, et al. Compatibility of ternary cathode with ionic liquid-based composite electrolyte[J]. Journal of Shenzhen University Science and Engineering, 2015, 32(3): 251-256.(in Chinese)
基金项目:国家重点基础研究发展计划资助项目(613142020201); 深圳市科学技术研究与发展基金资助项目(JCYJ20140418193546111)
作者简介:王振峰(1984—),男 (汉族),广东省恩平市人,深圳大学硕士研究生,E-mail:supperfeng@163.com
引文:王振峰,张小雪,李翠华,等.离子液体复合电解质与三元正极的相容性[J]. 深圳大学学报理工版,2015,32(2):251-256.
更新日期/Last Update: 2015-05-11