Measuring the ionic conductivity of solid polymer electrolyte powders
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International Journal of Electrochemical Science
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Ex-situ characterization of solid polymer electrolytes plays an important role in their development as materials
for energy applications, with ionic conductivity being a crucial parameter to quantify. Conventional measurements of ionic conductivity often require the formation of a free-standing polymer film which in many instances
is difficult to fabricate, thus there may be a need to quantify their ionic conductivity in powder form. In this
work, we present a practical and reproducible method for measuring the ionic conductivity of solid polymer
electrolytes (SPEs) in their powder form. By using a modified configuration of a through-plane cell, demonstrated
with both a proton conducting- and an anion conducting-solid polymer electrolyte powder (SPEP), we are able to
obtain ionic conductivity values under variable conditions in order to explore the influence of external parameters on the ionic conductivity of powders. Two types of SPEs in insoluble powder form were employed in this
work: (1) a proton-exchange material (SPEP-H+) based on a hyperbranched, sulfo-phenylated poly(phenylene)
SPEP (HB-sPPT-H+), with measured ionic conductivity of ⁓ 210 mS cm− 1 at 80 ◦C and 95 % of relative humidity
(RH); (2) an anion-exchange conducting polymer in its chloride form (SPEP-Cl-
), consisting of a radiation-grafted
ultra-high density polyethylene insoluble SPEP containing covalently-bonded benzyltrimethylammonium
(BTMA) head-groups, with measured ionic conductivity of ⁓ 53 mS cm− 1 at 80 ◦C and 95 % RH.
Como referenciar
BIANCOLLI, ANA L.G.; KONOVALOVA, ANASTASIIA; SANTIAGO, ELISABETE I.; HOLDCROFT, STEVEN. Measuring the ionic conductivity of solid polymer electrolyte powders. International Journal of Electrochemical Science, v. 18, n. 10, p. 1-10, 2023. DOI: 10.1016/j.ijoes.2023.100288. Disponível em: http://repositorio.ipen.br/handle/123456789/34244. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.