Multifunctional Tunnel Structural Interfacial Modulation Promises Fast-Charge and Long-Life Na-Layered Oxides
Source abstract
Abstract
Na-layered oxides are famous for their environmental friendliness and facile synthesis, however, developing cathodes with fast Na + transport kinetics, robust structure, and air/water stability to realize fast-charge and long-life layered oxide cathodes for sodium-ion batteries (SIBs) remains a great challenge. Herein, we propose the concept of multifunctional tunnel interfacial modulation to stabilize the phase structure of P2-Na 2/3 Ni 1/3 Mn 1/3 Ti 1/3 O 2 . Relying on the unique structure of the Na 0.44 MnO 2 with S-channel, the modified electrode prepared with an aqueous binder achieves capacity retention of 80.87% after 4000 cycles at 2C. The calculation results of stress simulation reveal that the tunnel structure could dissipate the mechanical stress of the P2 phase upon cycling. Overall, such multifunctional tunnel interfacial modulation provides a new research direction for the development of fast-charge and long-life SIBs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Ferroelectric and Piezoelectric Materials · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Chemistry and Materials Engineering
Wenzhou University
Wenzhou Key Laboratory of Sodium-Ion Batteries
Wenzhou University Technology Innovation Institute for Carbon Neutralization
Department of Thermal Science and Energy Engineering
University of Science and Technology of China (USTC)
Institute for Superconducting and Electronic Materials, Faculty of Engineering and Information Sciences
University of Wollongong
School of Microelectronics, Shanghai University
Institute of Energy Materials Science (lEMS)
University of Shanghai for Science and Technology
Funding
National Key Research and Development Program of China · China Scholarship Council · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · Wenzhou Key Scientific and Technological Innovation Research Project
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