Detail publikace

Synthesis and characterization of blended cathode materials as improvement on the electrochemical performance in Li-ion battery

ORTIZ, M. ČECH, O. KAZDA, T. ČUDEK, P. SEDLAŘÍKOVÁ, M.

Originální název

Synthesis and characterization of blended cathode materials as improvement on the electrochemical performance in Li-ion battery

Anglický název

Synthesis and characterization of blended cathode materials as improvement on the electrochemical performance in Li-ion battery

Jazyk

en

Originální abstrakt

Layered LiNi1/3Co1/3Mn1/3O2 and blended spinel/layered LiMn2O4/LiNi1/3Co1/3Mn1/3O2 structures as cathode materials were synthesized by using a facile solid-state method, and calcination temperatures and the blended structure were investigated. The samples are characterized via X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical measurements. Based on the characterization results, we can conclude that the powders obtained at 850 degrees C yield materials with improved layered structural ordering; consequently, these structures are able to deliver discharge capacities up to 126.5 mAh g(-1), after 75 cycles. Besides, the obtained blended cathodes (CS@NCM-850) exhibit markedly improved electrochemical perfor-mance (143 mAh g(-1), after 75 cycles) and rate capability (with the discharge capacity values higher than in the NCM-850 electrode at all rates).

Anglický abstrakt

Layered LiNi1/3Co1/3Mn1/3O2 and blended spinel/layered LiMn2O4/LiNi1/3Co1/3Mn1/3O2 structures as cathode materials were synthesized by using a facile solid-state method, and calcination temperatures and the blended structure were investigated. The samples are characterized via X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical measurements. Based on the characterization results, we can conclude that the powders obtained at 850 degrees C yield materials with improved layered structural ordering; consequently, these structures are able to deliver discharge capacities up to 126.5 mAh g(-1), after 75 cycles. Besides, the obtained blended cathodes (CS@NCM-850) exhibit markedly improved electrochemical perfor-mance (143 mAh g(-1), after 75 cycles) and rate capability (with the discharge capacity values higher than in the NCM-850 electrode at all rates).

Dokumenty

BibTex


@article{BUT172951,
  author="Mariela Gisela {Ortiz} and Ondřej {Čech} and Tomáš {Kazda} and Pavel {Čudek} and Marie {Sedlaříková}",
  title="Synthesis and characterization of blended cathode materials as improvement on the electrochemical performance in Li-ion battery",
  annote="Layered LiNi1/3Co1/3Mn1/3O2 and blended spinel/layered LiMn2O4/LiNi1/3Co1/3Mn1/3O2 structures as cathode materials were synthesized by using a facile solid-state method, and calcination temperatures and the blended structure were investigated. The samples are characterized via X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical measurements. Based on the characterization results, we can conclude that the powders obtained at 850 degrees C yield materials with improved layered structural ordering; consequently, these structures are able to deliver discharge capacities up to 126.5 mAh g(-1), after 75 cycles. Besides, the obtained blended cathodes (CS@NCM-850) exhibit markedly improved electrochemical perfor-mance (143 mAh g(-1), after 75 cycles) and rate capability (with the discharge capacity values higher than in the NCM-850 electrode at all rates).",
  address="ELSEVIER",
  chapter="172951",
  doi="10.1016/j.est.2021.103059",
  howpublished="online",
  institution="ELSEVIER",
  number="42",
  volume="42",
  year="2021",
  month="october",
  pages="103059--10306565",
  publisher="ELSEVIER",
  type="journal article in Web of Science"
}