A5054968101- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Advanced Battery Technologies Research
- Radioactive element chemistry and processing
- Advanced battery technologies research
- Chemical Synthesis and Characterization
- Thermal Expansion and Ionic Conductivity
- Radioactive contamination and transfer
- Electronic and Structural Properties of Oxides
- Machine Learning in Materials Science
- Extraction and Separation Processes
- Nuclear physics research studies
- Analytical chemistry methods development
- Nuclear Physics and Applications
- Semiconductor materials and devices
- Fuel Cells and Related Materials
- Electron and X-Ray Spectroscopy Techniques
- Graphene research and applications
Institute of Physics
2020-2025
Chinese Academy of Sciences
2006-2025
Beijing National Laboratory for Molecular Sciences
2023-2024
University of Chinese Academy of Sciences
2020-2024
Xi'an Jiaotong University
2023-2024
Czech Academy of Sciences, Institute of Physics
2024
Institute of Modern Physics
2006-2007
Abstract Heteroatom doping has been proved to effectively enhance the sloping capacity, nevertheless, high capacity almost encounters a conflict with disappointing initial Coulombic efficiency (ICE). Herein, we propose heteroatom configuration screening strategy by introducing secondary carbonization process for phosphate‐treated carbons remove irreversible configurations but reversible ones and free radicals remaining, achieving simultaneity between ICE (≈250 mAh g −1 80 %). The Na storage...
The anionic redox reaction (ARR) is a promising charge contributor to improve the reversible capacity of layered-oxide cathodes for Na-ion batteries; however, some practical bottlenecks still need be eliminated, including low retention, large voltage hysteresis, and rate capability. Herein, we proposed high-Na content honeycomb-ordered cathode, P2-Na5/6[Li1/6Cu1/6Mn2/3]O2 (P2-NLCMO), with combined cationic/anionic redox. Neutron powder diffraction X-ray P2-NLCMO suggested P2-type stacking...
Abstract Na‐ion batteries (NIBs) are promising for grid‐scale energy storage applications. However, the lack of Co, Ni‐free cathode materials has made them less cost‐effective. In this work, Mg 2+ is successfully utilized to activate oxygen redox reaction in earth‐abundant Fe/Mn‐based layered cathodes achieve reversible hybrid anionic and cationic capacities. A high first charge capacity ≈210 mAh g −1 with balanced charge–discharge efficiency achieved without O‐loss, showing a cost $2.02 kWh...
Air sensitivity remains a substantial barrier to the commercialization of sodium (Na)-layered oxides (NLOs). This problem has puzzled community for decades because complexity interactions between air components and their impact on both bulk surfaces NLOs. We show here that water vapor plays pivotal role in initiating destructive acid oxidative degradations NLOs only when coupled with carbon dioxide or oxygen, respectively. Quantification analysis revealed reducing defined cation competition...
Abstract The irreversible consumption of sodium at the anode side during first cycle prominently reduces energy density Na‐ion batteries. Different sacrificial cathode additives have been recently reported to address this problem; however, critical issues such as by‐products (e.g., CO 2 ) release cycling and incompatibility with current battery fabrication procedures potentially deteriorate full‐cell performance prevent practical application. Herein, an additive‐free self‐presodiation...
Abstract To fulfill the requirements for practical applications, it is urgent to boost gravimetric energy density of sodium‐ion batteries. An effective way increase charging voltage O3‐type layered cathodes preferably 4.2 V versus Na/Na + (V Na ). Nevertheless, extremely challenging achieve stable cycling at such a high cut‐off voltage. Here novel electrolyte strategy design an intermolecular‐reinforced (IRE) presented, utilizing meticulously protected ether molecules, which facilitates...
Na-ion batteries (NIBs) are emerging as a promising alternative to Li-ion (LIBs). To align with sustainability principles, the design of electrode materials must incorporate considerations for abundant and environmentally...
Abstract Sodium‐ion batteries (SIBs) are receiving considerable attention as economic candidates for large‐scale energy storage applications. Na 3 V 2 (PO 4 ) O F (NVPF) is intensively regarded one of the most promising cathode materials SIBs, due to its high density, fast ionic conduction, and robust + ‐super‐ionic conductor (NASICON) framework. However, poor rate capability ascribed intrinsically low electronic conductivity severely hinders their practical Here, high‐rate highly reversible...
Abstract In Na-ion batteries, O3-type layered oxide cathode materials encounter challenges such as particle cracking, oxygen loss, electrolyte side reactions, and multi-phase transitions during the charge/discharge process. This study focuses on surface coating with NiTiO 3 achieved via secondary heat treatment using a precursor material. Through in-situ x-ray diffraction (XRD) differential electrochemical mass spectrometry (DEMS), along crystal structure characterizations of post-cycling...
Abstract Heteroatom doping has been proved to effectively enhance the sloping capacity, nevertheless, high capacity almost encounters a conflict with disappointing initial Coulombic efficiency (ICE). Herein, we propose heteroatom configuration screening strategy by introducing secondary carbonization process for phosphate‐treated carbons remove irreversible configurations but reversible ones and free radicals remaining, achieving simultaneity between ICE (≈250 mAh g −1 80 %). The Na storage...