Use of Microelectrode Arrays to Directly Measure Diffusion of Ions in Solid Electrolytes: Physical Diffusion of Ag+ in a Solid Polymer Electrolyte
Interim Technical rept. no. 40, May 1989-May 1990
MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF CHEMISTRY
Pagination or Media Count:
We report experiments which demonstrate direct measurement of diffusion of molecular or ionic species in solid electrolyte media. A microelectrode array of closely spaced 1.4 microns Pt microelectrodes allows direct measurement of the movement of Ag in aqueous electrolyte and in the solid polymer electrolytes, LiCF3SO3MEEP at 298 K with a molar ratio of LiCF3SO3 to polymer repeat unit of 1 to 4 and LiCF3SO3PEO at 352 K and a molar ratio of LiCF3SO3 to polymer repeat unit of 1 to 8.
- Polymer Chemistry