Nanoparticles of complex oxides Li1 + x (Ni y Mn z Co1 – y – z )1 – x O2 – δ (0 ≤ x ≤ 0.2, 0.2 ≤ y ≤ 0.6, 0.2 ≤ z ≤ 0.4) obtained by thermal destruction of metal-containing compounds in oil

Nanoparticles of complex oxides Li1 + x (Ni y Mn z Co1 – y – z )1 – x O2 – δ (0 ≤ x... Cathode materials in the form of Li1 + x (Ni y Mn z Co1 – y – z )1 – x O2 – δ (0 ≤ x ≤ 0.2, 0.2 ≤ y ≤ 0.6, 0.2 ≤ z ≤ 0.4) core–shell nanoparticles coated with a thin carbon shell were synthesized by thermal destruction of metal-containing compounds in oil and studied. The results of element analysis, X-ray diffraction analysis, scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical tests of cathodes based on the obtained complex oxides in model cells were presented. The complex oxide Li1.2Ni0.2Mn0.4Co0.2O1.9 was the most promising composition because the loss of capacity after 50 cycles was 4% at a current density C/2 and an operating potential of 3.0–4.4 V relative to E (Li/Li+). When the current density in discharge increased sixfold (3 C), the loss of capacity was 14% relative to the value obtained at a discharge current C/2 at voltages 3.0 to 4.4 V. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Electrochemistry Springer Journals

Nanoparticles of complex oxides Li1 + x (Ni y Mn z Co1 – y – z )1 – x O2 – δ (0 ≤ x ≤ 0.2, 0.2 ≤ y ≤ 0.6, 0.2 ≤ z ≤ 0.4) obtained by thermal destruction of metal-containing compounds in oil

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Publisher
Pleiades Publishing
Copyright
Copyright © 2017 by Pleiades Publishing, Ltd.
Subject
Chemistry; Electrochemistry; Physical Chemistry
ISSN
1023-1935
eISSN
1608-3342
D.O.I.
10.1134/S1023193517070163
Publisher site
See Article on Publisher Site

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