Synergy of cations in high entropy oxide lithium ion battery anode
Karlsruhe Institute of Technology · Technische Universität Darmstadt · +3 more institutions
Abstract
Abstract High entropy oxides (HEOs) with chemically disordered multi-cation structure attract intensive interest as negative electrode materials for battery applications. The outstanding electrochemical performance has been attributed to the high-entropy stabilization and the so-called ‘cocktail effect’. However, the configurational entropy of the HEO, which is thermodynamically only metastable at room-temperature, is insufficient to drive the structural reversibility during conversion-type battery reaction, and the ‘cocktail effect’ has not been explained thus far. This work unveils the multi-cations synergy of the HEO Mg 0.2 Co 0.2 Ni 0.2 Cu 0.2 Zn 0.2 O at atomic and nanoscale during electrochemical…
Citation impact
- FWCI
- 35.77
- Percentile
- 100%
- References
- 50
Authors
12- KWKai WangCorresponding
Karlsruhe Institute of Technology, Technische Universität Darmstadt
- WHWeibo Hua
Karlsruhe Institute of Technology
- XHXiaohui Huang
Karlsruhe Institute of Technology, Technische Universität Darmstadt
- DSDavid Stenzel
Karlsruhe Institute of Technology, Technische Universität Darmstadt
- JWJunbo Wang
Karlsruhe Institute of Technology, Technische Universität Darmstadt
Topics & keywords
- Electrochemistry
- Materials science
- Anode
- Oxide
- Electrode
- Nanostructure
- Metal
- Nanoscopic scale
Funding
- NSNational Science Foundation
- COCenter of Excellence for Learning in Education, Science and Technology
- ECEuropean CommissionAwards: 730957, 101017709
- DFDeutsche ForschungsgemeinschaftAwards: MU 4276/1-1, 101017709, 390874152, EXC 2154
- NNNational Natural Science Foundation of ChinaAward: 22108218
- CSChina Scholarship CouncilAward: 201706240159