2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 4: Recycling & Secondary Battery

Editors:Kongoli F
Publisher:Flogen Star OUTREACH
Publication Year:2014
Pages:498 pages
ISBN:978-1-987820-06-5
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2014_Volume
CD shopping page

    Nano-structured Carbon from Graphite through Molten Salt Electrochemistry - Preparation, Characterisation, Application in Lithium Ion Batteries -

    Carsten Schwandt1; Qian Xu2; Aleksandar Dimitrov3; Raj Das Gupta4; Ali Kamali5; Derek Fray6;
    1UNIVERSITY OF NIZWA, Nizwa, Oman; 2NORTHEASTERN UNIVERSITY, Shenyang, China; 3SS. CYRIL AND METHODIUS UNIVERSITY, Skopje, Macedonia (Former Yugoslav Republic of Macedonia); 4ELECTROVAYA, Mississauga, Canada; 5UNIVERSITY OF CAMBRIDGE, Cambridge, United Kingdom (Great Britain); 6DEPARTMENT OF MATERIALS SCIENCE AND METALLURGY, UNIVERSITY OF CAMBRIDGE, CAMBRIDGE, Cambridge, United Kingdom (Great Britain);
    Type of Paper: Plenary
    Id Paper: 402
    Topic: 12

    Abstract:

    The production of nano-structured carbon materials is a subject of large scientific and technological interest. A less prominent way of accomplishing this is by the conversion of graphite directly into nanocarbon through the application of molten salt electrochemistry. In this method, alkali metal ions from a molten chloride salt are intercalated into cathodically polarised graphite at a high rate, such that the graphite microstructure is destabilised and various nano-structured carbon species are formed which then detach from the graphite bulk. However, due to the heterogeneous product composition and the low yields, this method has hitherto been regarded as inferior.
    This presentation will summarise research and development work that may have the potential to change this view. By rigorously optimising the process parameters and implementing a novel type of process control, it has now become possible to prepare in gramme quantities nano-structured carbon material with nanotube contents as high as 70 to 80%. Through a variation of the process, it is also feasible to prepare carbon species filled with tin metal. A key application of this material is as the anode in lithium ion batteries. A first set of independently performed successful battery tests will be presented.

    Keywords:

    High-temperature electrochemistry, Molten salts, Graphite, Nano-structured carbon, Lithium ion battery

    Cite this article as:

    Schwandt C, Xu Q, Dimitrov A, Das Gupta R, Kamali A, Fray D. Nano-structured Carbon from Graphite through Molten Salt Electrochemistry - Preparation, Characterisation, Application in Lithium Ion Batteries -. In: Kongoli F, editors. Sustainable Industrial Processing Summit SIPS 2014 Volume 4: Recycling & Secondary Battery. Volume 4. Montreal(Canada): FLOGEN Star Outreach. 2014. p. 365-366.