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A Novel Co3O4/MnO2/C Electrode with Hierarchical Heterostructure for High‐performance Lithium‐Ion Batteries.
- Source :
-
ChemistrySelect . 11/30/2020, Vol. 5 Issue 44, p13831-13836. 6p. - Publication Year :
- 2020
-
Abstract
- Transition metal oxides (TMOs) are promising materials for next‐generation lithium‐ion batteries while the lithium storage and cycling stability of TMOs are still limited. Herein, a novel Co3O4/MnO2/C composite using metal‐organic frameworks (MOFs) as sacrificial templates is reported. MnO2 and C shells are layer by layer coated on the MOF‐derived Co3O4/C samples via hydrothermal technique and heat treatment. When employed as anode materials for LIBs, the hierarchically heterostructured Co3O4/MnO2/C composites incorporate the merits of Co3O4, MnO2, and C, showing high Li storage performances at a current density of 0.2 A g−1 with an initial capacity of ∼1245.7 mAh g−1 and a reversible capacity of ∼854.9 mAh g−1 after 100 cycles, remarkable cycling stability, and excellent rate capability (almost 98 % recovery as the current density returns to the initial 0.2 A g−1, and especially, the specific capacity remains ∼587.6 mAh g−1 at a high current density of 2.0 A g−1). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23656549
- Volume :
- 5
- Issue :
- 44
- Database :
- Academic Search Index
- Journal :
- ChemistrySelect
- Publication Type :
- Academic Journal
- Accession number :
- 147290589
- Full Text :
- https://doi.org/10.1002/slct.202003656