A5101544044- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Transition Metal Oxide Nanomaterials
- Electron and X-Ray Spectroscopy Techniques
- Semiconductor materials and devices
- Extraction and Separation Processes
- Advanced Electron Microscopy Techniques and Applications
- Machine Learning in Materials Science
Central South University
2020-2024
Shanghai Jiao Tong University
2024
Bridge University
2024
SLAC National Accelerator Laboratory
2022-2024
The University of Texas at Austin
2023-2024
Stanford Synchrotron Radiation Lightsource
2022-2024
State Key Laboratory of Powder Metallurgy
2023
Purdue University West Lafayette
2023
Walker (United States)
2023
Virginia Tech
2023
Abstract Solid‐state batteries have been considered as promising next‐generation energy storage devices for potentially higher density and better safety compared with commercial lithium‐ion that are based on organic liquid electrolytes. However, in terms of indispensable solid‐state electrolytes, there remaining issues to be solved before entering the market. Most electrolytes air‐sensitive, which causes a complex expensive cell assembly impressible interface. Therefore, expected...
Lithium- and manganese-rich (LMR) layered oxides are promising high-energy cathodes for next-generation lithium-ion batteries, yet their commercialization has been hindered by a number of performance issues. While fluorination explored as mitigating approach, results from polycrystalline-particle-based studies inconsistent the mechanism improvement in some reports remains unclear. In present study, we develop an situ method that leads to fluorinated LMR with no apparent impurities. Using...
To improve lithium-ion battery technology, it is essential to probe and comprehend the microscopic dynamic processes that occur in a real-world composite electrode under operating conditions. The primary secondary particles are structural building blocks of cathode electrodes. Their inconsistency has profound but not well-understood impacts. In this research, we combine operando coherent multi-crystal diffraction optical microscopy examine chemical dynamics local domains layered oxide...
Single-crystalline layered oxide materials for lithium-ion batteries are featured by their excellent capacity retention over polycrystalline counterparts, making them sought-after cathode candidates. Their degradation, however, becomes more severe under high-voltage cycling, hindering many high-energy applications. It is long speculated that the interplay among composition heterogeneity, lattice deformation, and redox stratification could be a driving force performance decay. The underlying...
Strongly covalent Mo–O stabilizes the lattice oxygen, which inhibits activation of Mn redox pairs, bulk phase structure, and forms a stable CEI at surface.
ConspectusThe lithium-ion battery (LIB) is a tremendously successful technology for energy storage thanks to its favorable characteristics including high density, long lifespan, affordability, and safety. It has been widely adopted in sectors consumer electronics electric vehicles, which are featured by an enormous market value. To meet the ever-increasing demands density cycle life, industry academia continuously devoting efforts improve current LIB technology. This requires in-depth...
Abstract Fast-charging lithium-ion batteries provide a promising solution to addressing the range anxiety of electric vehicles (EVs) but they face challenges in durability and safety. Kinetically driven lithium-plating on anode is widely considered as major bottleneck has dominated research attention so far. Here we study fast-charging-induced failures EV-relevant through lengthscale-bridging, multi-modal correlative imaging techniques. Electrolyte depletion found be first domino fall, which...
Abstract To improve lithium-ion battery technology, it is essential to probe and comprehend the microscopic dynamic processes that occur in a real-world composite electrode under operating conditions. The primary secondary particles are structural building blocks of cathode electrodes. Their inconsistency has profound but not well-understood impacts. In this research, we combine operando coherent multi-crystal X-ray diffraction optical microscopy examine chemical dynamics local domains...