A Kinetic Two-Phase and Equilibrium Solid Solution in Spinel Li_(4+x)TisO_(12)

摘要

Advances in Li-ion batteries for energy storage have facilitated the success of mobile electronic equipment. In particular, high power densities in combination with low-price materials may also make Li-ion batteries attractive for more heavy-duty automotive applications. To facilitate such developments it is essential to understand the material properties that are responsible for the kinetic performance of Li-ion-battery electrodes. In general it is believed that two-phase reactions in electrode materials, responsible for the flat potential upon (dis)charging, lead to relatively low (dis)charge rates, hence limiting the power density.