bei Google ScholarTitelangaben
Zhao, R. ; Li, Li ; Li, Y. P. ; Xu, T. H. ; Pan, D. ; Yu, C. Y. ; Zhao, H. L. ; Bai, Y.:
Decoration by dual-phase Li₂ZrO₃ islands with core–shell structures enhances the electrochemical performance of high-voltage LiNi₀.₅Mn₁.₅O₄.
In: Applied Physics Letters.
Bd. 116
(2020)
Heft 2
.
- 021601.
ISSN 1077-3118
DOI: https://doi.org/10.1063/1.5130432
Abstract
A high-voltage LiNi0.5Mn1.5O4 (LNMO) cathode was modified by Li2ZrO3 (LZO), a fast ion conductor with a unique core–shell crystalline-amorphous structure. The electrochemical results indicated a greatly improved capacity retention for LNMO-1LZO compared to LNMO. Moreover, the rate performance (100 mAh·g−1) of LNMO-1LZO at a high current density of 10 C was superior to those of pristine LNMO and other modified samples. The enhanced electrochemical performance was ascribed to the generation of dual-phase island-shaped LZO with an interior crystalline phase, which accelerated Li+ diffusion, and an exterior amorphous shell, which enhanced interfacial compatibility and stability without influencing the intrinsic spinel structure of bulk LNMO. Thus, modification with this hybrid material has the remarkable synergetic effect of enhancing interfacial Li+ diffusion and stabilizing the interfacial structure during cycling.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayerisches Zentrum für Batterietechnik - BayBatt |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 27 Nov 2023 12:16 |
| Letzte Änderung: | 27 Nov 2023 12:16 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/87869 |