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Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl)imide electrolyte
Han, Pengxian1; Zhang, Bo1; Huang, Changshui1; Gu, Lin2; Li, Hong2; Cui, Guanglei1
2014-07-01
发表期刊ELECTROCHEMISTRY COMMUNICATIONS
卷号44期号:1页码:70-73
摘要

Flexible pyrolytic polyimide graphite film (PGF) is explored as a cathode current collector in lithium ion batteries using lithium bis(trifluoromethane sulfonyl) imide (LiTFSI) based electrolyte. It is demonstrated that no obvious anodic current is observed up to 4.5 V versus Li+/Li for PGF, while significant corrosion current is found from 3.6 V for aluminum, indicative of better electrochemical stability of PGF than that of aluminum in LiTFSI based electrolyte. LiMn2O4 on aluminum and PGF has been used as model electrode for testing. There is hardly any capacity retained after 10 cycles at room temperature for the LiMn2O4/aluminum electrode. With regard to the LiMn2O4/PGF electrode, the capacity retention ratio remained 89% after 1000 cycles. Moreover, at an elevated temperature of 55 degrees C, the capacity retention ratio kept at 81% after 300 cycles. Since LiTFSI-based electrolyte shows advantages in safety, stability and conductivity but could not be used due to Al-corrosion, the application of the PGF current collector could overcome this barrier. (C) 2014 Elsevier B.V. All rights reserved.

文章类型Article
关键词Polyimide Graphite Film Current Collector Lithium Bis(Trifluoromethane Sulfonyl) Imide Lithium Ion Batteries
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.elecom.2014.05.001
关键词[WOS]ION BATTERIES ; ROOM-TEMPERATURE ; ANODIC BEHAVIOR ; HIGH-ENERGY ; CORROSION ; LITFSI ; CARBON ; SURFACE
收录类别SCI
语种英语
WOS研究方向Electrochemistry
WOS类目Electrochemistry
WOS记录号WOS:000337997400019
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6199
专题仿生与固态能源系统研究组
碳基材料与能源应用研究组
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Ind Energy Storage Res Inst, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
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Han, Pengxian,Zhang, Bo,Huang, Changshui,et al. Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl)imide electrolyte[J]. ELECTROCHEMISTRY COMMUNICATIONS,2014,44(1):70-73.
APA Han, Pengxian,Zhang, Bo,Huang, Changshui,Gu, Lin,Li, Hong,&Cui, Guanglei.(2014).Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl)imide electrolyte.ELECTROCHEMISTRY COMMUNICATIONS,44(1),70-73.
MLA Han, Pengxian,et al."Anticorrosive flexible pyrolytic polyimide graphite film as a cathode current collector in lithium bis(trifluoromethane sulfonyl)imide electrolyte".ELECTROCHEMISTRY COMMUNICATIONS 44.1(2014):70-73.
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