Synthesis and characterization of CNT@SnO2 decorated graphene anodes for Li-ion batteries as free-standing and flexible

ALAF M., Oncel V., Tocoglu U., ÖZBAY N., Akbulut H.

Journal of Materials Science, cilt.58, sa.30, ss.12298-12311, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Sayı: 30
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s10853-023-08800-0
  • Dergi Adı: Journal of Materials Science
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, MEDLINE, Metadex, Public Affairs Index, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.12298-12311
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

SnO2 anode material is considered to be a promising anode material for lithium-ion batteries owing to its high theoretical capacity. However, the application of SnO2 has been dramatically restricted because of pulverization led by the volume expansion during the charge/discharge process. To overcome these drawbacks, herein, SnO2 coated carbon nano tubes (CNT@SnO2) decorated graphene anode as free-standing and flexible was prepared and investigated for Li-ion anode application. The fine dispersion of SnO2 nanocrystals onto CNT surfaces and decoration of this structure between graphene layers not only suppresses the volume expansion but also effectively avoids aggregation of the SnO2, increases the specific surface area and active sites, and improves the electrical conductivity. The free-standing and flexible composite anode exhibit excellent reversible capacity, high Coulombic efficiency, and good capacity retention. Graphical Abstract: [Figure not available: see fulltext.].