| In this study, we evaluated the fundamental aspects of the intercalation chemistry in lithium battery operations. Thermodynamics of guest-host systems, ranging from ideal to highly interactive ones, were examined as the foundation for the intercalation chemistry. Fundamental transport processes that control the rate capability of lithium batteries that use intercalation materials as active electrodes, were evaluated in mathematical models of porous electrodes.; Solid state diffusion models were formulated for compact as well as porous electrodes, where effect of solid state diffusion on utilization of the battery capacity was illustrated.; The transports of ionic species in the pores and electrons in the solid phase of porous electrodes were modeled with phenomena such as depletion zone, ohmic resistance and near-depletion phenomenon.; The effect of equilibrium potential as functions of the concentration of the intercalate was evaluated for a special class of the materials with flat equilibrium potential curves.; The effects of solid state diffusion together with ohmic resistance due to transport in the pores were examined in the uncoupled-mass-transfer model.; In the final chapter, we illustrated how these rate-controlling processes can be studied with associated characteristic times in predicting the performance. |
