Please use this identifier to cite or link to this item:
|Title:||Novel synthesis and electrochemical investigations of ZnO/C composites for lithium-ion batteries|
Zakharova, G. S.
Andreikov, E. I.
Wegener, S. A.
Nölke, J. -H.
Kiselkov, D. M.
Puzyrev, I. S.
Podval’naya, N. V.
|Citation:||Novel synthesis and electrochemical investigations of ZnO/C composites for lithium-ion batteries / E. Thauer, G. S. Zakharova, E. I. Andreikov, et al. — DOI 10.1007/s10853-021-06125-4 // Journal of Materials Science. — 2021. — Vol. 56. — Iss. 23. — P. 13227-13242.|
|Abstract:||For the first time, ZnO/C composites were synthesized using zinc glycerolate as a precursor through one-step calcination under a nitrogen atmosphere. The effect of the heat treatment conditions on the structure, composition, morphology as well as on the electrochemical properties regarding application in lithium-ion batteries are investigated. The products obtained by calcination of the precursor in nitrogen at 400—800 °C consist of zinc oxide nanoparticles and amorphous carbon that is in-situ generated from organic components of the glycerolate precursor. When used as anode material for lithium-ion batteries, the as-prepared ZnO/C composite synthesized at a calcination temperature of 700 °C delivers initial discharge and charge capacities of 1061 and 671 mAh g−1 at a current rate of 100 mA g−1 and hence 1.5 times more than bare ZnO, which reaches only 749/439 mAh g−1. The native carbon improves the conductivity, allowing efficient electronic conductivity and Li-ion diffusion. By means of ex-situ XRD studies a two-step storage mechanism is proven. © 2021, The Author(s).|
ANODE MATERIAL FOR LITHIUM ION BATTERIES
HEAT TREATMENT CONDITIONS
ZINC OXIDE NANOPARTICLES
|metadata.dc.description.sponsorship:||This work was supported by the Deutsche Forschungsgemeinschaft through projects KL1824/12-1 and KL 1824/14-1. G.Z. acknowledges support of the state order via the Ministry of Science and Higher Education of Russia (No AAAA-A19-119031890025-9). E.T. acknowledges support by the BMWi through project 03ET6095C (HiKoMat). The authors thank I. Glass for experimental support.|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.