Self-assembled molecular nanocathodes for rechargeable energy storage modules

被引：4

作者：

Maddanimath, T

Ramanath, G

Vijayamohanan, K

机构：

[1] Rensselaer Polytech Inst, Mat Sci & Engn Dept, Troy, NY 12180 USA

[2] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India

[3] Int Ctr Young Sci, Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 396卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.cplett.2004.08.033

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：

We demonstrate the proof-of-concept of using self-assembled monolayers (SAMs) as nanocathodes for rechargeable Li ion batteries. Potential advantages of SAM nanocathodes include high surface area, high power-weight ratios, facile fabrication, and repair through molecular desorption and reassembly. Nanocathodes comprised of diphenyl disulfide SAMs formed on gold surfaces were characterized by cyclic voltammetry, impedance spectroscopy, infrared spectroscopy and X-ray photoelectron spectroscopy. Our results show that charging and discharging involve Li+ ion release and capture, respectively, via nanocrevices in the SAMs. Li+- ion entrapment in the SAMs via interaction with it-electrons and sulfur decrease battery lifetime upon repeated charging and discharging. (C) 2004 Elsevier B.V. All rights reserved.

引用

收藏

页码：277 / 281

页数：5

相关论文

共 29 条

[1] Comparative behavior of aromatic disulfide and diselenide monolayers on polycrystalline gold films using cyclic voltammetry, STM, and quartz crystal microbalance [J].

Aslam, M ;

Bandyopadhyay, K ;

Vijayamohanan, K ;

Lakshminarayanan, V .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 234 (02) :410-417

[2] On the possibility of LiH formation on Li surfaces in wet electrolyte solutions [J].

Aurbach, D ;

Weissman, I .

ELECTROCHEMISTRY COMMUNICATIONS, 1999, 1 (08) :324-331

[3] Self-assembled monolayers of small aromatic disulfide and diselenide molecules on polycrystalline gold films: A comparative study of the geometrical constraint using temperature-dependent surface-enhanced raman spectroscopy, X-ray photoelectron spectroscopy, and electrochemistry [J].

Bandyopadhyay, K ;

Vijayamohanan, K ;

Venkataramanan, M ;

Pradeep, T .

LANGMUIR, 1999, 15 (16) :5314-5322

[4] Effect of geometric constraints on the self-assembled monolayer formation of aromatic disulfides on polycrystalline gold [J].

Bandyopadhyay, K ;

Patil, V ;

Sastry, M ;

Vijayamohanan, K .

LANGMUIR, 1998, 14 (14) :3808-3814

[5] Impedance analysis of self-assembled naphthalene disulfide monolayer on gold using external redox probes [J].

Bandyopadhyay, K ;

Vijayamohanan, K ;

Shekhawat, GS ;

Gupta, RP .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 447 (1-2) :11-16

[6] METAL CHALCOGENIDES AS REVERSIBLE CATHODES IN LITHIUM CELLS AND THEIR FUTURE IN TELECOMMUNICATIONS [J].

BROADHEAD, J ;

TRUMBORE, FA ;

BASU, S .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1981, 118 (FEB) :241-250

[7] LiMn2O4 cathode doped with excess lithium and synthesized by co-precipitation for Li-ion batteries [J].

Chan, HW ;

Duh, JG ;

Sheen, SR .

JOURNAL OF POWER SOURCES, 2003, 115 (01) :110-118

[8] Chemical-vapor deposition-based template synthesis of microtubular TiS2 battery electrodes [J].

Che, G ;

Jirage, KB ;

Fisher, ER ;

Martin, CR ;

Yoneyama, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (12) :4296-4302

[9] SEMICONDUCTOR NANOCRYSTALS COVALENTLY BOUND TO METAL-SURFACES WITH SELF-ASSEMBLED MONOLAYERS [J].

COLVIN, VL ;

GOLDSTEIN, AN ;

ALIVISATOS, AP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (13) :5221-5230

[10] CHARACTERIZATION OF OCTADECANETHIOL-COATED GOLD ELECTRODES AS MICROARRAY ELECTRODES BY CYCLIC VOLTAMMETRY AND AC-IMPEDANCE SPECTROSCOPY [J].

FINKLEA, HO ;

SNIDER, DA ;

FEDYK, J ;

SABATANI, E ;

GAFNI, Y ;

RUBINSTEIN, I .

LANGMUIR, 1993, 9 (12) :3660-3667