Work

Relationship between Intrinsic Properties and Homogeneity of Ionic Conductivity of CMCh/Paracrystalline ZSM-5 Zeolite/LiClO 4 Composite Solid Electrolyte Membranes

Year: 2026

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide Evaluating the intrinsic properties of various compositions of composite solid electrolyte (CSE) membranes to determine their suitability for further development in electrochemical cells is a challenging process. In this study, the inherent characteristics of CSE membranes related to the homogeneity of their ionic conductivity were assessed by using Nyquist plots and the relative standard deviation (RSD) of ionic conductivity measurements. Among six combinations of carboxymethyl chitosan (CMCh, C), paracrystalline ZSM-5 zeolite (Z5AH, Z), and LiClO 4 (L), the two membranes CZL 10 (10 wt % LiClO 4 ) and CZL 25 (25 wt % LiClO 4 ) displayed similar Nyquist plots across three regions of each membrane. These two samples also exhibited relatively low RSD values of ionic conductivity, 31.06% and 40.48%, respectively. The relatively low conductivity RSD reflects the membrane homogeneity. The uniformity of ionic conductivity of the CZL 10 membrane with the lowest RSD value was further confirmed by the surface homogeneity observed through AFM analysis. Continuous incorporation of CMCh–Z5AH in the CZL 10 membrane contributes to the surface uniformity. Meanwhile, the DSC data and water contact angle of CZL 25 supported its conductivity uniformity. The uniformity of the surface arises from consistently spaced misfit dislocations. The approach offers a simple, cost-effective, and efficient method to identify suitable CSE compositions for further evaluation in battery and fuel cell applications.

Source: ACS Omega

DOI: 10.1021/acsomega.5c10362

Authors: Bibiana Dho Tawa, Rino R. Mukti, M. Miftahul Munir, Endah Purwanti, S. T. C. L. Ndruru, I Made Arcana

Institutions: Bandung Institute of Technology, University of Nusa Cendana, University of Singaperbangsa Karawang, National Research and Innovation Agency

Language: English

Topic: Advanced Battery Materials and Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,935

Funders: Badan Riset dan Inovasi Nasional, Institut Teknologi Bandung, Fakultas Matematika dan Ilmu Pengetahuan Alam, Institut Teknologi Bandung