Defect-free-induced Na+ disordering in electrode materials
Journal Article
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· Energy & Environmental Science
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- Huazhong Univ. of Science and Technology, Wuhan (China). School of Materials Science and Engineering, State Key Laboratory of Material Processing and Die & Mould Technology; Univ. of Wollongong, NSW (Australia). Australian Institute for Innovative Materials, Institute for Superconducting and Electronic Materials
- Huazhong Univ. of Science and Technology, Wuhan (China). School of Materials Science and Engineering, State Key Laboratory of Material Processing and Die & Mould Technology
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Science Division
- Huazhong Univ. of Science and Technology, Wuhan (China). School of Optical and Electronic Information
- Hubei Engineering Univ., Xiaogan (China). College of Chemistry and Materials Science
- Chinese Academy of Sciences (CAS), Shanghai (China). Institute of Applied Physics, Shanghai Synchrotron Radiation Facility
- Universidad Nacional de San Luis (UNSL) (Argentina). Instituto de Investigaciones en Tecnología Química (INTEQUI); Universidad Nacional de San Luis (UNSL) (Argentina). CONICET; Universidad Nacional de San Luis (UNSL) (Argentina) Facultad de Quím. Bioquím. y Farm.
- Wuhan Univ. (China). Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics
- Inst. Laue-Langevin (ILL), Grenoble (France)
- Dept. of Energy and Environment, Consejo Superior de Investigaciones Cientificas (CSIC), Madrid (Spain). Inst. de Ciencia de Materiales de Madrid Cantoblanco
- Univ. of Wollongong, NSW (Australia). Australian Institute for Innovative Materials, Institute for Superconducting and Electronic Materials
For reaching high-performance of electrode materials, it is generally believed that understanding the structure evolution and heterogeneous alignment effect is the key. Presently, a very simple and universally applicable self-healing method is investigated to prepare defect-free Prussian blue analogs (PBAs) that reach their theoretical capacity as cathode materials for sodium-ion batteries (SIBs). For direct imaging of the local structure and the dynamic process at the atomic scale, we deliver a fast ion-conductive nickel-based PBA that enables rapid Na+ extraction/insertion within 3 minutes and a capacity retention of nearly 100% over 4000 cycles. This guest-ion disordered and quasi-zero-strain nonequilibrium solid–solution reaction mechanism provides an effective guarantee for realizing long-cycle life and high-rate capability electrode materials that operate via reversible two-phase transition reaction. Unconventional materials and mechanisms that enable reversible insertion/extraction of ions in low-cost metal–organic frameworks (MOFs) within minutes have implications for fast-charging devices, grid-scale energy storage applications, material discovery, and tailored modification.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- National Key R&D Program of China; National Natural Science Foundation of China; USDOE
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1809968
- Journal Information:
- Energy & Environmental Science, Journal Name: Energy & Environmental Science Journal Issue: 5 Vol. 14; ISSN 1754-5692
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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