Fabrication of nickel manganese cobalt oxide (NMCO) anodes for lithium-ion batteries via hydrothermal process

Solmaz R., Karahan B. D., Keleş Ö.

Journal of Applied Electrochemistry, vol.50, no.10, pp.1079-1089, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 10
  • Publication Date: 2020
  • Doi Number: 10.1007/s10800-020-01462-9
  • Journal Name: Journal of Applied Electrochemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1079-1089
  • Keywords: Lithium-ion battery, Anode, Hydrothermal method, Nickel manganese cobalt oxide, NMCO
  • Istanbul Medipol University Affiliated: Yes


Abstract: Nickel manganese cobalt oxide (NMCO) powders have been fabricated by hydrothermal method followed by a calcination. The present work reports for the first time in the open literature, the effects of ammonium fluoride (NH4F) amount and calcination temperature on the NMCO powder’s size and morphology. In this regard, the NMCO composite powders are designed to optimize their performances as anode materials for lithium ion batteries. The morphology, composition and structure of powders have been characterized by scanning electron microscopy, X-ray fluorescence and X-ray diffractometry, respectively. Cyclic voltammetry, galvanostatic and impedance spectroscopy tests have been employed to investigate the lithiation mechanism of the composite electrode. The results reveal that the lowest amount of NH4F (1.5 mmol) in the precursor solution and the lowest calcination temperature (250 °C) lead to form NMCO rods with 100 nm diameter and 3–5 µm length. This newly designed rod-shaped NMCO powder presents a high rate performance. The average discharge/charge capacities are 1224/1129, 968/939, 856/826, and 744/712 mAh g−1 when the current load increases from 50 to 100, 200 and 400 mA g−1, respectively. Graphic Abstract: [Figure not available: see fulltext.].