In this context, individual conductivity contributions of cations (σ+), anions (σ-) and ion pairs (s) can be determined by engaging the concept of conservative ensembles and three experimental techniques (AC conductivity for σAC, DC polarization for σpol and PFG-NMR for s*):
where s* is retrieved through tracer diffusion coefficient
Lithium triflate containing polyethylene glycol electrolyte solutions are currently investigated. The analysis can be extended to other electrolyte systems, including ionic liquids.
J. Maier, Adv. Funct. Mater. , 2011, 21, 1448. DOI: 10.1002/adfm.201002153
C. Pfaffenhuber, J. Popovic, J. Maier, in preparation