Diffusion Characteristics of Accumulators Electrode Materials

摘要

This contribution deals with a study of relaxation times measurement and diffusion constants of electrolyte accumulator materials using nuclear magnetic resonance method. This is important for understanding of electrodes material behavior in electrolytes. Magnetic resonance phenomenon is applied to increase particles energy by means of RF pulse with Larmor frequency. The RF pulse adds energy to the electrode material which is placed in the static magnetic field with flux density B_0. The Inversion Recovery method was used for longitudinal relaxation time T_1 measurement. The Spin Echo method was used for the transverse relaxation time T_2 measurement. And the Spin Echo method with gradient field was used for the measurement of material diffusion. The samples of gels consisted of PMMA, PC and NaC10_4.