A5041286835- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Extraction and Separation Processes
- Supercapacitor Materials and Fabrication
- Polyoxometalates: Synthesis and Applications
- Aluminum Alloys Composites Properties
- ZnO doping and properties
- Graphene research and applications
- Ionic liquids properties and applications
- Magnetic Properties and Synthesis of Ferrites
- Metallic Glasses and Amorphous Alloys
- Advanced battery technologies research
- Nanoporous metals and alloys
- Corrosion Behavior and Inhibition
- Synthesis and Biological Evaluation
- Energetic Materials and Combustion
- Advanced materials and composites
- Multiferroics and related materials
- Quantum Dots Synthesis And Properties
- Luminescence and Fluorescent Materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Metallurgy and Cultural Artifacts
- Advanced Welding Techniques Analysis
- Ga2O3 and related materials
Pacific Northwest National Laboratory
2019-2025
University of Science and Technology Beijing
2024
Beijing Institute of Nanoenergy and Nanosystems
2024
Chinese Academy of Sciences
2024
Battelle
2020-2024
Government of the United States of America
2019-2022
Changzhou Institute of Technology
2017-2022
University of Münster
2015-2020
Helmholtz-Institute Münster
2015-2019
Beihang University
2007-2019
The conventional LiPF 6 /carbonate-based electrolytes have been widely used in graphite (Gr)-based lithium (Li) ion batteries (LIBs) for more than 30 years because a stable solid electrolyte interphase (SEI) layer forms on the surface and enables its long-term cycling stability. However, few of these are under stringent conditions needed with Li metal anode (LMA) other anodes, such as silicon (Si), which exhibit large volume changes during charge/discharge processes. Many different...
Functional electrolyte is the key to stabilize highly reductive lithium (Li) metal anode and high-voltage cathode for long-life, high-energy-density rechargeable Li batteries (LMBs). However, fundamental mechanisms on interactions between reactive electrodes electrolytes are still not well understood. Recently localized high-concentration (LHCEs) emerging as a promising design strategy LMBs. Here, we use LHCEs an ideal platform investigate correlation characteristics of inner solvation...
Abstract LiNi x Mn y Co 1− − O 2 (NMC) cathode materials with Ni ≥ 0.8 have attracted great interest for high energy‐density lithium‐ion batteries (LIBs) but their practical applications under charge voltages (e.g., 4.4 V and above) still face significant challenges due to severe capacity fading by the unstable cathode/electrolyte interface. Here, an advanced electrolyte is developed that has a oxidation potential over 4.9 enables NMC811‐based LIBs achieve excellent cycling stability in...
Electrolyte is very critical to the performance of high-voltage lithium (Li) metal battery (LMB), which one most attractive candidates for next-generation high-density energy-storage systems. formulation and structure determine physical properties electrolytes their interfacial chemistries on electrode surfaces. Localized high-concentration (LHCEs) outperform state-of-the-art carbonate in many aspects LMBs due unique solvation structures. Types fluorinated cosolvents used LHCEs are...
Abstract Silicon anodes are regarded as one of the most promising alternatives to graphite for high energy‐density lithium‐ion batteries (LIBs), but their practical applications have been hindered by volume change, limited cycle life, and safety concerns. In this work, nonflammable localized high‐concentration electrolytes (LHCEs) developed Si‐based anodes. The LHCEs enable Si with significantly enhanced electrochemical performances comparing conventional carbonate a content fluoroethylene...
Abstract To enable next‐generation high‐power, high‐energy‐density lithium (Li) metal batteries (LMBs), an electrolyte possessing both high Li Coulombic efficiency (CE) at a rate and good anodic stability on cathodes is critical. Acetonitrile (AN) well‐known organic solvent for ionic conductivity, yet its application in LMBs limited due to poor compatibility with anodes even salt concentration conditions. Here, highly concentrated AN‐based developed vinylene carbonate (VC) additive suppress...
Abstract High‐energy‐density batteries with a LiCoO 2 (LCO) cathode are of significant importance to the energy‐storage market, especially for portable electronics. However, their development is greatly limited by inferior performance under high voltages and challenging temperatures. Here, highly stable lithium (Li) metal LCO cathode, through design in situ formed, electrode/electrolyte interphases on both Li anode an advanced electrolyte, reported. The can deliver specific capacity ≈190 mAh...
The approaches enhancing the energy density of lithium (Li)-ion batteries (LIBs) often push to their safety limit. Therefore, electrolytes that not only enhance electrochemical performances but also improve properties LIBs are urgently needed for further development LIBs. Although organic phosphorus-containing solvents have been used with carbonates form flame-retarding or nonflammable electrolytes, poor compatibility graphite anodes leads fast capacity fade Herein we report a promising...
We demonstrate a first-principles screening methodology as an effective tool to explore electrolyte formulations for the new generation of high energy density rechargeable batteries. study liquid structure and electronic properties in dilute electrolytes, concentration electrolytes (HCE), localized (LHCE), with focus on based lithium bis(fluorosulfonyl)imide (LiFSI), dimethyl carbonate (DMC), bis(2,2,2-trifluoroethyl) ether (BTFE) diluent. describe solvation complexes structural changes...
Fast decomposition of a localized high concentration electrolyte results in the formation thin film constituted by atomic species from anion and part diluent that is key for cell stability.
NaxNi0.5Mn0.5O2 (0.5 ≤ x 1.2)-layered oxides have been prepared and studied as cathode materials in sodium metal cells. The influence of content on the structure electrochemical performance 1.2) investigated. When is between 0.5 0.8, crystallize P2 phase. For range 0.9–1.2, novel P3-type obtained. Of great interest material with specific composition Na0.9Ni0.5Mn0.5O2 because it can deliver high discharge capacities (141 102 mA h g–1 at 10 100 g–1, respectively). Compared to 0.8) materials,...
Heterocyclic compounds are widely found in many natural isolates and medicinally relevant compounds, as well some fine chemicals. The development of general efficient methods for the construction heterocyclic is one most important tasks synthetic organic chemistry. Along these lines, [3+m]-cycloaddition reactions involving situ generated azaoxyallyl cations 3-atom units have emerged a powerful method synthesis nitrogen-containing heterocycles. In this feature article, we highlight recent...