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Nano-silicon composites using poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) as elastic polymer matrix and carbon source for lithium-ion battery anode
Yue, Lu1,2; Wang, Suqing1; Zhao, Xinyue1; Zhang, Lingzhi1
2012
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
Volume22Issue:3Pages:1094-1099
Abstract

Nano-silicon composites, Si/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and Si/C, were prepared by an in situ chemical polymerization of 3,4-ethylenedioxythiophene (EDOT) with nano-Si particles in a PSS aqueous solution and subsequent carbonization of Si/PEDOT:PSS, respectively. The nano-Si particles were embedded in a shapeless PEDOT: PSS matrix and amorphous carbon in the corresponding composite. Energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) measurements revealed that 2.66 wt% of the element sulfur was doped in the carbon matrix for Si/C composite. Both the Si/PEDOT: PSS and Si/C composite electrodes exhibited higher initial coulombic efficiency and better cycling performance than the bare nano-Si anode. The Si/C composite showed the best electrochemical performance, retaining a specific capacity of 768 mA h g(-1) and a Coloumbic efficiency of 99.2% after 80 cycles, with a very small initial capacity loss of 2.80% and a capacity fade of 0.48% per cycle.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c1jm14568a
WOS Subject ExtendedChemistry ; Materials Science
WOS KeywordSECONDARY BATTERIES ; ELECTROCHEMICAL CHARACTERIZATIONS ; NANOSTRUCTURED SILICON ; RECHARGEABLE BATTERIES ; COATED SI ; NANOCOMPOSITES ; NANOPARTICLES ; INSERTION ; CAPACITY ; CATHODE
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000299212700044
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10152
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Yue, Lu,Wang, Suqing,Zhao, Xinyue,et al. Nano-silicon composites using poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) as elastic polymer matrix and carbon source for lithium-ion battery anode[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(3):1094-1099.
APA Yue, Lu,Wang, Suqing,Zhao, Xinyue,&Zhang, Lingzhi.(2012).Nano-silicon composites using poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) as elastic polymer matrix and carbon source for lithium-ion battery anode.JOURNAL OF MATERIALS CHEMISTRY,22(3),1094-1099.
MLA Yue, Lu,et al."Nano-silicon composites using poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) as elastic polymer matrix and carbon source for lithium-ion battery anode".JOURNAL OF MATERIALS CHEMISTRY 22.3(2012):1094-1099.
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