Issue 48, 2011
From the journal:

Dalton Transactions

Tin/polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium-ion batteries

Shu-Lei Chou,*ab   Xuan-Wen Gao,a   Jia-Zhao Wang,*ab   David Wexler,c   Zhao-Xiang Wang,d   Li-Quan Chend  and  Hua-Kun Liuab  

* Corresponding authors

a Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, Australia

b ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Wollongong, NSW, Australia
E-mail: shulei@uow.edu.au, jiazhao@uow.edu.au
Fax: +61 2-4221-5731
Tel: +61 2-4298-1405

c Faculty of Engineering, University of Wollongong, Wollongong, NSW, Australia

d Laboratory for Solid State Ionics, Institute of Physics, Chinese Academy of Sciences, Beijing, China

Abstract

A tin nanoparticle/polypyrrole (nano-Sn/PPy) composite was prepared by chemically reducing and coating Sn nanoparticles onto the PPy surface. The composite shows a much higher surface area than the pure nano-Sn reference sample, due to the porous higher surface area of PPy and the much smaller size of Sn in the nano-Sn/PPy composite than in the pure tin nanoparticle sample. Poly(vinylidene fluoride) (PVDF) and sodium carboxymethyl cellulose (CMC) were also used as binders, and the electrochemical performance was investigated. The electrochemical results show that both the capacity retention and the rate capability are in the same order of nano-Sn/PPy-CMC > nano-Sn/PPy-PVDF > nano-Sn-CMC > nano-Sn-PVDF. Scanning electronic microscopy (SEM) and electrochemical impedance spectroscopy (EIS) results show that CMC can prevent the formation of cracks in electrodes caused by the big volume changes during the charge–discharge process, and the PPy in the composite can provide a conducting matrix and alleviate the agglomeration of Sn nanoparticles. The present results indicate that the nano-Sn/PPy composite could be suitable for the next generation of anode materials with relatively good capacity retention and rate capability.

Graphical abstract: Tin/polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium-ion batteries

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C1DT10396B
Article type
Paper
Submitted
10 Mar 2011
Accepted
20 Apr 2011
First published
02 Jun 2011

Dalton Trans., 2011,40, 12801-12807

Permissions

Request permissions

Tin/polypyrrole composite anode using sodium carboxymethyl cellulose binder for lithium-ion batteries

S. Chou, X. Gao, J. Wang, D. Wexler, Z. Wang, L. Chen and H. Liu, Dalton Trans., 2011, 40, 12801 DOI: 10.1039/C1DT10396B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements