Electrochemical and Solid State Letters, Vol.3, No.6, 259-262, 2000
Electrophoretic fabrication of positive electrodes for rechargeable lithium batteries
LiCoO2 and LiMn2O4 composite electrodes for rechargeable lithium batteries were fabricated by an electrophoretic deposition (EPD) method. Oxide particles were deposited on an Al current collector with appropriate amounts of ketjen black and polytetrafluoroethylene by applying a high dc voltage between two electrodes in an EPD suspension. The electrode densities were comparable to those for electrodes prepared by a conventional process. The LiCoO2 and LiMn2O4 electrodes exhibited initial discharge capacities of 140 and 110 mAh g(-1), respectively. The particles adhered strongly to the Al current collectors. From these results, it can be concluded that the EPD method can be applied as a practical fabrication process for rechargeable lithium battery electrodes.