Carbon nanotubes (CNTs) as a buffer layer in silicon/CNTs composite electrodes for lithium secondary batteries

Kim, Taeahn; Mo, Youngjun; Nahm, Kee-Suk; Oh, Seung M.

doi:10.1016/j.jpowsour.2006.07.062

Cited by 106 publications

(75 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…46 Also, the MWNTs may improve the resiliency of the electrode and help to buffer the large volume changes. 41,47 Control tests on electrodes made from MWNTs and CMC only ( Figure S3, Supporting Information) showed stable reversible capacities of about 110 mAh/g, which is due to capaci- tance stored in the electrochemical double layer. This extra charge does not account for all of the improvement in the specific capacities observed in the SiNW/ MWNT sample.…”

Section: Resultsmentioning

confidence: 99%

Solution-Grown Silicon Nanowires for Lithium-Ion Battery Anodes

et al. 2010

View full text Add to dashboard Cite

Composite electrodes composed of silicon nanowires synthesized using the supercritical fluid؊liquid؊solid (SFLS) method mixed with amorphous carbon or carbon nanotubes were evaluated as Li-ion battery anodes. Carbon coating of the silicon nanowires using the pyrolysis of sugar was found to be crucial for making good electronic contact to the material. Using multiwalled carbon nanotubes as the conducting additive was found to be more effective for obtaining good cycling behavior than using amorphous carbon. Reversible capacities of 1500 mAh/g were observed for 30 cycles.

show abstract

Section: Resultsmentioning

confidence: 99%

Solution-Grown Silicon Nanowires for Lithium-Ion Battery Anodes

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Therefore, numerous ideas have been suggested to minimize the volume change and to increase the electrical conductivity. [33][34][35][36] Several remarkable approaches are the use of nanometer sized silicon 32,37,38 and preparation of composites with carbon materials such as amorphous carbon, 28,29 aerogel, 39 and carbon nanotubes.…”

Section: -20mentioning

confidence: 99%

Fabrication of Carbon Microcapsules Containing Silicon Nanoparticles-Carbon Nanotubes Nanocomposite for Anode in Lithium Ion Battery

Bae¹,

Park²

2012

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

Carbon microcapsules containing silicon nanoparticles (Si NPs)-carbon nanotubes (CNTs) nanocomposite (Si-CNT@C) have been fabricated by a two step polymerization method. Silicon nanoparticles-carbon nanotubes (Si-CNT) nanohybrids were prepared with a wet-type beadsmill method. A polymer, which is easily removable by a thermal treatment (intermediate polymer) was polymerized on the outer surfaces of Si-CNT nanocomposites. Subsequently, another polymer, which can be carbonized by thermal heating (carbon precursor polymer) was incorporated onto the surfaces of pre-existing polymer layer. In this way, polymer precursor spheres containing Si-CNT nanohybrids were produced using a two step polymerization. The intermediate polymer must disappear during carbonization resulting in the formation of an internal free space. The carbon precursor polymer should transform to carbon shell to encapsulate remaining Si-CNT nanocomposites. Therefore, hollow carbon microcapsules containing Si-CNT nanocomposites could be obtained (Si-CNT@C). The successful fabrication was confirmed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). These final materials were employed for anode performance improvement in lithium ion battery. The cyclic performances of these Si-CNT@C microcapsules were measured with a lithium battery half cell tests.

show abstract

“…[1][2][3][4][5][6][7][8][9][10][11][12] A structure with hierarchical organization and a complex shape that is based on SWCNTs is attractive and intriguing because the functionality of the materials is highly dependent on their nano/ meso-architectures. Recently, we have reported the fabrication of SWCNT/fullerodendron/SiO 2 coaxial nanohybrids via sol Àgel polycondensation of tetraethoxysilane on the surface of SWCNT/ fullerodendron supramolecular nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of novel core-shell microspheres consisting of single-walled carbon nanotubes and CaCO3 through biomimetic mineralization

Tajima

Tsutsui

Fujii

et al. 2012

Polym J

View full text Add to dashboard Cite

Calcium carbonate (CaCO 3 ) in the presence of single-walled carbon nanotube (SWCNT) /fullerodendron supramolecular nanocomposites was crystallized with a CO 2 diffusion method under ambient conditions and in aqueous environments to produce monodisperse spherical SWCNT/CaCO 3 hybrids with a core-shell structure. The crystals nucleate at the carboxyl groups on the surface of the SWCNT/fullerodendron supramolecular nanocomposites grow around a spherical scaffold consisting of the SWCNTs, and finally form spherical calcite crystals embedded with and covered by the SWCNTs. Owing to of the phase transition from vaterite to calcite through a solvent-mediated process, the morphology of the microspheres is unique; the shell is primarily composed of calcite crystals of CaCO 3 , and a greater amount of SWCNTs is embedded in the core moiety.

show abstract

Carbon nanotubes (CNTs) as a buffer layer in silicon/CNTs composite electrodes for lithium secondary batteries

Cited by 106 publications

References 25 publications

Solution-Grown Silicon Nanowires for Lithium-Ion Battery Anodes

Solution-Grown Silicon Nanowires for Lithium-Ion Battery Anodes

Fabrication of Carbon Microcapsules Containing Silicon Nanoparticles-Carbon Nanotubes Nanocomposite for Anode in Lithium Ion Battery

Fabrication of novel core-shell microspheres consisting of single-walled carbon nanotubes and CaCO3 through biomimetic mineralization

Contact Info

Product

Resources

About