A Tripartite Composite Incorporating Nitrogen-Doped Graphene Oxide, Polypyrrole, and Silica for Lithium-Ion Battery Anodes


Al-Bujasim M., Gençten M., Donmez K. B., Arvas M. B., Karatepe N., Sahin Y.

ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, vol.13, no.5, pp.51001, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 5
  • Publication Date: 2024
  • Doi Number: 10.1149/2162-8777/ad423b
  • Journal Name: ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Compendex, INSPEC
  • Page Numbers: pp.51001
  • Yıldız Technical University Affiliated: Yes

Abstract

In this study, N-doped graphene oxide-polypyrrole-silica (NGO-PPy-SiO2) composite was employed as a possible anode in Li-ion batteries. The chronoamperometric technique was employed to synthesize NGO, and within this study two samples were produced, one characterized by a high polypyrrle content (N1) and the other by a low polypyrrle content (N2). N2 has the maximum initial discharge capacity of 785 mAh g−1 at 0.1 C, which is greater than N1’s capacity of 501 mAh g−1. The initial coulombic efficiency of the first cycle is around 72%, whereas the ICE of N2 is approximately 60%. N1 demonstrates outstanding cycling performance for 100 cycles at high rate (10 C) with maintain capacity as 100% and coulombic efficiency of 100%, as well as extremely stable capacity during the cycling. N2 has a maintain capacity of ≈79% and excellent coulombic efficiency, however the capacity during cycling is not as stable as N1.