Investigating the effect of different type of separator on the multifunctional performance of structural lithium-ion composite battery

Putu Suwarta*, Bagus Alifah Hasyim, Daffa Satriyo, Habib Saifuddin Fathoni, Achmad Subhan, Ika Dewi Wijayanti, Suwarno Suwarno, Sutikno Sutikno, Fahmi Mubarok, Yatim Lailun Nimah

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The multifunctional performance of a novel structural lithium-ion composite battery made of a mixture of solid polymer electrolyte (SPE), glass separator, and two commercial electrodes is investigated. Three types of glass separator known as WR200, WR50 dan Whatman where each of them has different geometry are being used in this research. The SPE is a mixture of ionic liquid (IL) and resin epoxy Bisphenol A compound. NMC532 and graphite layers are used as the positive and negative electrodes respectively. The structural battery is stacked into a pouch cell configuration to represent the commercial battery. To determine its multifunctionality, two types of testing were conducted: electrochemical and mechanical testing. Structural battery using each of the WR50 and WR200 separators produces slightly better charge-discharge capacity, Coulombic efficiency, and lower impedance compared to the Whatman separator. The Coulombic efficiency based on the Cyclic Voltammetry (CV) test is 11.9%, 11.3%, 4.3% for the WR50, WR200 and Whatman separators respectively. Based on the charge-discharge capacity test, the Coulombic efficiency is 40.38%, 3,34 %, 4.03% for the WR50, WR200 and Whatman separators respectively. The thin layer of WR 50 separator helps the Lithium ion to travel faster between the two electrodes thus resulting in higher Coulombic efficiency. The mechanical testing shows a degradation in the tensile properties of the structural battery for all types of separators after the charge-discharge cycle test due to graphite exfoliation and cracking. From the current research, a relationship between the stiffness of the structural battery and its discharge capacity has been made.

Original languageEnglish
Article number020001
JournalAIP Conference Proceedings
Volume2932
Issue number1
DOIs
Publication statusPublished - 6 Oct 2023
Event2022 International Conference on Battery for Renewable Energy and Electric Vehicles, ICB-REV 2022 - South Tangerang, Indonesia
Duration: 21 Jun 202223 Jun 2022

Fingerprint

Dive into the research topics of 'Investigating the effect of different type of separator on the multifunctional performance of structural lithium-ion composite battery'. Together they form a unique fingerprint.

Cite this