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Substrate-induced coagulation (SIC) of nano-disperse carbon black in non-aqueous media : a method of manufacturing highly conductive cathode materials for Li-ion batteries by self-assembly

Basch, Angelika, Gollas, Bernhard, Horn, Roger and Besenhard, Jürgen O. 2005, Substrate-induced coagulation (SIC) of nano-disperse carbon black in non-aqueous media : a method of manufacturing highly conductive cathode materials for Li-ion batteries by self-assembly, Journal of applied electrochemistry, vol. 35, no. 2, pp. 169-176, doi: 10.1007/s10800-004-5823-6.

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Title Substrate-induced coagulation (SIC) of nano-disperse carbon black in non-aqueous media : a method of manufacturing highly conductive cathode materials for Li-ion batteries by self-assembly
Author(s) Basch, Angelika
Gollas, Bernhard
Horn, Roger
Besenhard, Jürgen O.
Journal name Journal of applied electrochemistry
Volume number 35
Issue number 2
Start page 169
End page 176
Publisher Springer Netherlands
Place of publication Dordrecht, Netherlands
Publication date 2005
ISSN 0021-891X
1572-8838
Keyword(s) carbon coating
composite electrode
dip-coating
Li-ion battery
non-aqueous dispersion
substrateinduced coagulation (SIC)
Summary Substrate-induced coagulation (SIC) is a coating process based on self-assembly for coating different surfaces with fine particulate materials. The particles are dispersed in a suitable solvent and the stability of the dispersion is adjusted by additives. When a surface, pre-treated with a flocculant e.g. a polyelectrolyte, is dipped into the dispersion, it induces coagulation resulting in the deposition of the particles on the surface. A non-aqueous SIC process for carbon coating is presented, which can be performed in polar, aprotic solvents such as N-Methyl-2- pyrrolidinone (NMP). Polyvinylalcohol (PVA) is used to condition the surface of substrates such as mica, copperfoil, silicon-wafers and lithiumcobalt oxide powder, a cathode material used for Li-ion batteries. The subsequent SIC carbon coating produces uniform layers on the substrates and causes the conductivity of lithiumcobalt oxide to increase drastically, while retaining a high percentage of active battery material.
Language eng
DOI 10.1007/s10800-004-5823-6
Field of Research 091205 Functional Materials
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30041422

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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