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
Data(s) |
01/01/2005
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Resumo |
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.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Springer Netherlands |
Relação |
http://dro.deakin.edu.au/eserv/DU:30041422/horn-substrateinducedcoagulation-2005.pdf http://dx.doi.org/10.1007/s10800-004-5823-6 |
Direitos |
2005, Springer |
Palavras-Chave | #carbon coating #composite electrode #dip-coating #Li-ion battery #non-aqueous dispersion #substrateinduced coagulation (SIC) |
Tipo |
Journal Article |