Potentiostatic intermittent titration technique

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Diffusion coefficient

The proportionality constant D in Fick’s first law, in m²/s. It sets how fast a species spreads for a given concentration gradient.

Galvanostatic intermittent titration technique

A series of short constant-current pulses each followed by a long rest, so that both the equilibrium voltage curve and the solid diffusion coefficient can be extracted at each state of charge. It is slow, often days per cell, and a staple of parameterisation.

Potentiostat

An instrument that controls the potential of an electrode against a reference and measures the current, or the reverse as a galvanostat. It is the tool for electrochemical impedance spectroscopy and three-electrode experiments.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. Battery Test Manual For Electric Vehicles, Revision 3

   Jon P. Christopherson · Idaho National Laboratory · 2015

   Topic background · Performance characterization, pulse resistance/power, life testing and reference performance tests; historical 2015 edition.