Yu, Ping, B. N. Popov, J. A. Ritter, and R. E. White. 1999. “Determination of the Lithium Ion Diffusion Coefficient in Graphite”. Journal of The Electrochemical Society 146 (1): 8-14.
Abstract
A complex impedance model for spherical particles was used to determine the lithium ion diffusion coefficient in graphite as a function of the state of charge (SOC) and temperature. The values obtained range from of 1.12 × 10 -10 to 6.51 × 10 -10 cm 2 /s at 25°C for 0 and 30% SOC, respectively, and for 0% SOC, the value at 55°C was 1.35 × 10 -10 cm 2 /s. The conventional potentiostatic intermittent titration technique (PITT) and Warburg impedance approaches were also evaluated, and the advantages and disadvantages of these techniques were exposed. © 1999 The Electrochemical Society. S0013-4651(98)02-032-1. All rights reserved.
Last updated on 09/07/2023