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Updated: Apr 5, 2026
Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material
Published on: February 5, 2019
Enhanced Lithium-Ion Storage Capability of a Bismuth Sulfide/Graphene Oxide/Poly(3,4-ethylenedioxythiophene)
Radha Mukkabla1, Melepurath Deepa2, Avanish Kumar Srivastava3
1Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yedduaram, 502205, Telangana, India), Fax: +91-40-23016003, Tel: +91-40-023016024.
Abstract:
A Bi2 S3 /graphene oxide (GO) composite enwrapped by a poly(3,4-ethylenedioxythiophene) (PEDOT) coating was prepared for the first time for use as an anode in Li-ion batteries. Pristine Bi2 S3 nanoflowers and composites of Bi2 S3 /GO and Bi2 S3 /GO/PEDOT were assembled into half cells with Li metal as the counter electrode, and initial discharge capacities of 833, 1020, and 1300 mAh g(-1) , respectively, were obtained. Composites of Bi2 S3 /GO/PEDOT and Bi2 S3 /GO showed superior cycling stability and better rate capability than pristine Bi2 S3 . GO provides highly conducting interconnections, which allow facile propagation of electrons during charge/discharge, and this improves the ion-uptake capability of the Bi2 S3 nanoflowers and also increases the rate capability. PEDOT furnishes a protective coating that prevents detachment of the material from the current collector during cycling, and it also imparts better cycling stability to the Bi2 S3 /GO/PEDOT composite.
