Redox-active organics/polypyrrole composite as a cycle-stable cathode for Li ion batteries
文献类型:期刊论文
作者 | Deng, W. W.1; Shen, Y. F.1; Liang, X. M.2; Feng, J. W.2; Yang, H. X.1 |
刊名 | ELECTROCHIMICA ACTA |
出版日期 | 2014-11-20 |
卷号 | 147页码:426-431 |
关键词 | Doped polypyrrole cathode Redox-active organic molecules Physical doping Synergistic electrochemical activation Lithium ion batteries |
英文摘要 | A high capacity and cycle-stable organic molecule/polymer composite is synthesized by physical doping of redox-active perylene-3,4,9,10-tetracarboxydiimide (PTCDI) in polypyrrole (PPy). The as-prepared PTCDI/PPy composite demonstrates a synergistic electrochemical activation, in which the insoluble large PTCDI anions act as a redox-active dopant to activate the PPy backbones, while the activated PPy backbones form a conductive network to promote the redox activity of PTCDI molecules for Li insertion/extraction reactions. As a result, the PTCDI/PPy composite demonstrated a considerably high reversible capacity of >100 mAh g(-1) and a stable cyclability with 92% capacity retention over 200 cycles, possibly serving as a low cost and renewable alternative to the inorganic cathode materials for Li-ion batteries. Since such a physical doping method is simple and easily adoptable for different organic molecules and polymers, it may offer a new route for developing low cost and electrochemically active organic electrode materials. (C) 2014 Elsevier Ltd. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Electrochemistry |
研究领域[WOS] | Electrochemistry |
关键词[WOS] | RECHARGEABLE LITHIUM BATTERIES ; ORGANIC ELECTRODE MATERIALS ; CONDUCTING POLYMERS ; RENEWABLE CATHODE ; DOPED POLYPYRROLE ; CAPACITY ; ANION |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000346178800054 |
公开日期 | 2015-07-14 |
源URL | [http://ir.wipm.ac.cn/handle/112942/1273] |
专题 | 武汉物理与数学研究所_磁共振应用研究部 |
作者单位 | 1.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
推荐引用方式 GB/T 7714 | Deng, W. W.,Shen, Y. F.,Liang, X. M.,et al. Redox-active organics/polypyrrole composite as a cycle-stable cathode for Li ion batteries[J]. ELECTROCHIMICA ACTA,2014,147:426-431. |
APA | Deng, W. W.,Shen, Y. F.,Liang, X. M.,Feng, J. W.,&Yang, H. X..(2014).Redox-active organics/polypyrrole composite as a cycle-stable cathode for Li ion batteries.ELECTROCHIMICA ACTA,147,426-431. |
MLA | Deng, W. W.,et al."Redox-active organics/polypyrrole composite as a cycle-stable cathode for Li ion batteries".ELECTROCHIMICA ACTA 147(2014):426-431. |
入库方式: OAI收割
来源:武汉物理与数学研究所
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