A5100771499- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Advanced battery technologies research
- Power Systems and Renewable Energy
- 2D Materials and Applications
- Electrocatalysts for Energy Conversion
- Extraction and Separation Processes
- CO2 Reduction Techniques and Catalysts
- Energy and Environment Impacts
- Hybrid Renewable Energy Systems
- Supercapacitor Materials and Fabrication
- Smart Grid and Power Systems
- Integrated Energy Systems Optimization
- Graphene research and applications
- Electron and X-Ray Spectroscopy Techniques
- High-Velocity Impact and Material Behavior
- Mechanical Behavior of Composites
- Biofuel production and bioconversion
- Electric Vehicles and Infrastructure
- Advanced Thermoelectric Materials and Devices
- Microbial Metabolic Engineering and Bioproduction
- Advanced Electron Microscopy Techniques and Applications
- Algal biology and biofuel production
- Geomechanics and Mining Engineering
Stanford University
2016-2025
Anhui Polytechnic University
2021-2025
North China Electric Power University
2011-2024
North China University of Water Resources and Electric Power
2024
Tiangong University
2024
China Southern Power Grid (China)
2024
Southeast University
2015-2023
Shandong University
2023
University of Virginia
2022-2023
State Grid Corporation of China (China)
2023
Whereas standard transmission electron microscopy studies are unable to preserve the native state of chemically reactive and beam-sensitive battery materials after operation, such remain pristine at cryogenic conditions. It is then possible atomically resolve individual lithium metal atoms their interface with solid electrolyte interphase (SEI). We observe that dendrites in carbonate-based electrolytes grow along <111> (preferred), <110>, or <211> directions as faceted, single-crystalline...
Abstract The physiochemical properties of the solid-electrolyte interphase, primarily governed by electrolyte composition, have a profound impact on electrochemical cycling metallic lithium. Herein, we discover that effect nitrate anions regulating lithium deposition previously known in ether-based electrolytes can be extended to carbonate-based systems, which dramatically alters nuclei from dendritic spherical, albeit extremely limited solubility. This is attributed preferential reduction...
Although liquid-solid interfaces are foundational in broad areas of science, characterizing this delicate interface remains inherently difficult because shortcomings existing tools to access liquid and solid phases simultaneously at the nanoscale. This leads substantial gaps our understanding structure chemistry key battery systems. We adopt modify a thin film vitrification method preserve sensitive yet critical batteries native electrolyte environments enable cryo–electron microscopy...
Selective atomic layer deposition of LiF on h-BN as an interfacial enables stable cycling Li metal anodes.
Lithium metal is the ultimate anode choice for high energy density rechargeable lithium batteries. However, it suffers from inferior electrochemical performance and safety issues due to its reactivity growth of dendrites. It has long been desired develop a materials coating on Li metal, which pinhole-free, mechanically robust without fracture during deposition stripping, chemically stable against liquid electrolytes, all while maintaining adequate ionic conductivity. such an ideal material...
Lithium (Li) metal has long been considered the "holy grail" of battery anode chemistry but is plagued by low efficiency and poor safety due to its high chemical reactivity large volume fluctuation, respectively. Here we introduce a new host wrinkled graphene cage (WGC) for Li metal. Different from recently reported amorphous carbon spheres, WGC show highly improved mechanical stability, better ion conductivity, excellent solid electrolyte interphase (SEI) continuous robust protection. At...
Abstract The practical applications of lithium metal anodes in high-energy-density batteries have been hindered by their formation and growth dendrites. Herein, we discover that certain protein could efficiently prevent eliminate the wispy dendrites, leading to long cycle life high Coulombic efficiency anodes. We contend molecules function as a “self-defense” agent, mitigating embryos, thus mimicking natural, pathological immunization mechanisms. When added into electrolyte, are...
Cathode electrolyte interphase (CEI), the intimate coating layer formed on positive electrode, has been thought to be critical. However, many aspects of CEI remain unclear. This originates from lack effective tools characterize structural and chemical properties these sensitive interphases at nanoscale. Here, we develop a protocol preserve native state directly visualize interface electrode using cryogenic electron microscopy. We find that under normal operation conditions, there does not...
The Composite Dietary Antioxidant Index (CDAI), a composite score of multiple dietary antioxidants (including vitamin A, C, and E, selenium, zinc, carotenoids), represents an individual's comprehensive antioxidant intake profile. CDAI was developed based on its combined effect pro-inflammatory markers Tumor Necrosis Factor-α (TNF-α) anti-inflammatory effects Interleukin-1β (IL-1β), which are associated with many health outcomes, including depression, all-cause mortality, colorectal cancer,...
Silicon has been driving the great success of semiconductor industry, and emerging forms silicon have generated new opportunities in electronics, biotechnology, energy applications. Here we demonstrate large-area free-standing ultrathin single-crystalline Si at wafer scale as materials with processability. We fabricated them by KOH etching show their uniform thickness from 10 to sub-2 μm. These exhibits excellent mechanical flexibility bendability more than those 20–30 μm previous study....
Identification of active sites for catalytic processes has both fundamental and technological implications rational design future catalysts. Herein, we study the surfaces layered lithium cobalt oxide (LCO) oxygen evolution reaction (OER) using enhancement effect electrochemical delithiation (De-LCO). Our theoretical results indicate that most stable (0001) surface a very large overpotential OER independent content. In contrast, edge such as nonpolar (112̅0) polar (011̅2) are predicted to be...