Determination of the diffusion coefficient of an inserted species in a host electrode with EIS, PITT and GITT techniques

EC-Lab – Application Note #71 11/2021 Last revised 11/2021 DC and AC characterization of a Vanadium Redox Flow Battery (VRFB) using a Pinflow 20 cm² test lab cell I. Introduction II. Redox Flow Batteries (RFBs) stand out from all electrochemical…

Application Area: Fundamental Ohmic Drop Part 2 – Measurement Keywords 𝑅 = Uncompensated resistance; Ohmic drop determination; Ohmic drop compensation Summary In a previous application note, the concepts of ohmic drop (or uncompensated resistance) and ohmic resistance were explained and…

Application Area: Batteries Determination of the binary diffusion coefficient of a battery electrolyte Keywords Batteries, electrolytes, MacMullin number, separator, binary diffusion coefficient, tortuosity Microcell HC setup was used. The design of the measuring cell is shown as the schematic drawing…

Application Note: Batteries Potentiostatic Intermittent Titration Technique (PITT) Keywords Batteries; Diffusion coefficient, Li-ion batteries; Metrohm Autolab, PITT, Potentiostatic, Titration electrode and intercalate to the positive electrode. In both cases, the intercalation and de-intercalation processes result in current development, described in…