Materials Science Forum, Vol.492-493, 129-134, 2005
Influence of dynamic compaction on structure and mechanical strength of composite spinel-based (LiMn2O4, LiTi5O12) foil electrodes
Magnetic pulsed compaction method has been applied to compact the spinel-based (LiMn2O4, Li4Ti5O12) foil electrodes. The compressibility of the spinel nanopowders (LiMn2O4 and Li4Ti5O12) with combined additive of graphite, carbon black and polyvinyl difluoride has been studied. The structures of the spinel materials under action of pulsed pressures up to 1.6 GPa have been investigated with X-ray and AFM. It was found that pulsed compaction diminishes the adhesion strength of electrode coatings with Al foil. But the annealing of the coatings at temperatures up to 220 degrees C after pulsed compaction leads to the partial restoration of adhesion strength.