Copper-substituted Na0.67Ni0.3−xCuxMn0.7O2 cathode materials for sodium-ion batteries with suppressed P2–O2 phase transition

Author:

Wang Lei12345,Sun Yong-Gang56789,Hu Lin-Lin56789,Piao Jun-Yu56789,Guo Jing12345,Manthiram Arumugam1011121314ORCID,Ma Jianmin1234ORCID,Cao An-Min56789ORCID

Affiliation:

1. School of Physics and Electronics

2. Hunan University

3. Changsha 410082

4. P. R. China

5. Key Laboratory of Molecular Nanostructure and Nanotechnology

6. Beijing National Laboratory for Molecular Sciences

7. Institute of Chemistry

8. Chinese Academy of Sciences(CAS)

9. Beijing 100190

10. Materials Science and Engineering Program

11. Texas Materials Institute

12. The University of Texas at Austin

13. Austin

14. USA

Abstract

In situ XRD resolves the structural evolution of the Na–Cu/Ni/Mn–O system during the Na intercalation/deintercalation processes. The introduction of Cu2+ into the transition metal lattice is an strategy to prevent P2–O2 phase transitions.

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment,General Chemistry

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