A composite of sulfur and polypyrrole-multi walled carbon combinatorial nanotube as cathode for Li/S battery

被引：135

作者：

Liang, Xiao ^{[1
]}

Wen, Zhaoyin ^{[1
]}

Liu, Yu ^{[1
]}

Zhang, Hao ^{[1
]}

Jin, Jun ^{[1
]}

Wu, Meifen ^{[1
]}

Wu, Xiangwei ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Energy Transforming Mat, Shanghai 200050, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2012年 / 206卷

关键词：

Polypyrrole-multi walled carbon tube composites; Chemical oxidation; Sulfur cathode; Lithium battery; RECHARGEABLE LITHIUM BATTERIES; IONIC LIQUID ELECTROLYTE; ELECTROCHEMICAL PROPERTIES; ELECTRICAL-PROPERTIES;

D O I：

10.1016/j.jpowsour.2012.01.123

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A core/shell structure of polypyrrole (PPy) and multi walled carbon tube (MWCNT) composite is proposed. The PPy is introduced to the surface of MWCNT by an in situ polymerization of pyrrole with FeCl3 as the oxidizing agent. The structures of the PPy-MWCNT composites are analyzed by Raman spectra. The surface area of the PPy-MWCNT composite increases with the increase of the PPy content in the composite. Adversely, the conductivity of the S/PPy-MWCNT decreases. The MWCNT provides the high electronic conductive network. Meanwhile, the PPy with high surface area ensures an uniform dispersion of the sulfur. As a result, S/PPy-MWCNT with 25 wt.% PPy shows the discharge capacity of 725.8 mA h g(-1) after 100 cycles. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：409 / 413

页数：5

共 26 条

[1] Lithium-air and lithium-sulfur batteries [J].

Bruce, Peter G. ;

Hardwick, Laurence J. ;

Abraham, K. M. .

MRS BULLETIN, 2011, 36 (07) :506-512

[2] Sandwich-type functionalized graphene sheet-sulfur nanocomposite for rechargeable lithium batteries [J].

Cao, Yuliang ;

Li, Xiaolin ;

Aksay, Ilhan A. ;

Lemmon, John ;

Nie, Zimin ;

Yang, Zhenguo ;

Liu, Jun .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (17) :7660-7665

[3]

Chen S.R., 2011, ELECTROCHIM ACTA, DOI [10.1016/j.electacta.2011.03.005, DOI 10.1016/JELECTACTA.2011.03.005]

[4] Improvement of cycle property of sulfur electrode for lithium/sulfur battery [J].

Choi, Young-Jin ;

Kim, Ki-Won ;

Ahn, Hyo-Jun ;

Ahn, Jou-Hyeon .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 449 (1-2) :313-316

[5] High "C" rate Li-S cathodes: sulfur imbibed bimodal porous carbons [J].

He, Guang ;

Ji, Xiulei ;

Nazar, Linda .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (08) :2878-2883

[6] Expansion and shrinkage of the sulfur composite electrode in rechargeable lithium batteries [J].

He, Xiangming ;

Ren, Jianguo ;

Wang, Li ;

Pu, Weihua ;

Jiang, Changyin ;

Wan, Chunrong .

JOURNAL OF POWER SOURCES, 2009, 190 (01) :154-156

[7]

Jayaprakash N., 2011, ANGEW CHEM INT EDIT, V123, P1

[8]

Ji X, 2010, MATER CHEM, V20, P9821

[9]

Ji XL, 2009, NAT MATER, V8, P500, DOI [10.1038/NMAT2460, 10.1038/nmat2460]

[10] A mathematical model for a lithium-sulfur cell [J].

Kumaresan, Karthikeyan ;

Mikhaylik, Yuriy ;

White, Ralph E. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (08) :A576-A582

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