A5063923913- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Photonic and Optical Devices
- Optical Network Technologies
- Advanced Optical Sensing Technologies
- Neural Networks and Reservoir Computing
- Advanced Battery Technologies Research
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Photonic Communication Systems
- Photonic Crystals and Applications
- MXene and MAX Phase Materials
- Optical Coherence Tomography Applications
- Orbital Angular Momentum in Optics
- Advanced battery technologies research
- Near-Field Optical Microscopy
- Advanced Fiber Optic Sensors
- Extraction and Separation Processes
- Educational Technology and Pedagogy
- Zoonotic diseases and public health
- Nanomaterials for catalytic reactions
- Digital Holography and Microscopy
- Silicon Nanostructures and Photoluminescence
- Optical Imaging and Spectroscopy Techniques
Harbin Institute of Technology
2019-2024
Chongqing University
2024
Dongguan University of Technology
2024
Chizhou University
2023
University College London
2022
University of California, Los Angeles
1992-2021
University of Massachusetts Amherst
2020
Northwestern Polytechnical University
2020
Nanjing University of Information Science and Technology
2019
California NanoSystems Institute
2018
Abstract Sodium-ion batteries stand a chance of enabling fast charging ability and long lifespan while operating at low temperature (low-T). However, sluggish kinetics aggravated dendrites present two major challenges for anodes to achieve the goal low-T. Herein, we propose an interlayer confined strategy tailoring nitrogen terminals on Ti 3 C 2 MXene (Ti -N funct ) address these issues. The introduction endows with large space charge redistribution, improved conductivity sufficient...
Though cationic and anionic coredox endows Li-rich oxides the ability to break through capacity limit, structural basis that predominates thermodynamic kinetic behavior is still unclear. Here, we construct in-plane Li/Mn ordered disordered oxides, revealing origin of Li2MnO3 superstructures lithium storage. We elucidate formation energies different lattices ordering states, which guides experimental synthesis target materials. In structure, confirm disorder structure supports a fast 3D Li+...
In layered Li-rich materials, over stoichiometric Li forms an ordered occupation of LiTM
In this Letter we report on the generation of sub-diffraction-limited pure longitudinal magnetization in optomagnetic materials. The interaction between polarization singularities cylindrically polarized beams and optical vortices tight focus a high numerical-aperture objective as well induced magnetic fields through inverse Faraday effect are investigated. A distribution throughout entire focal plane, which has 15% reduction lateral full width at half-maximum, is achieved by tightly...
In commercial Li-ion batteries, the internal short circuits or over-lithiation often cause structural transformation in electrodes and may lead to safety risks. Herein, we investigate over-discharged mechanism of LiCoO2/graphite pouch cells, especially spatially resolving morphological, surface phase, local electronic structure LiCoO2 electrode. With synchrotron-based X-ray techniques Raman mapping, together with spectroscopy simulations, demonstrate that reaction is a effect, accompanied by...
Abstract Spinel LiNi 0.5 Mn 1.5 O 4 (LNMO), high‐voltage and high‐power density, is a very promising cathode candidate. Nevertheless, its lack of cycling stability has historically been long accepted as an inherent issue. Based on the above problem, strategy initiated to directly address dissolution unstable interface structure. A beneficial solid‐phase reaction occurs at LNMO interface, transforming spinel phase into two functional phases. One layered that provides electrochemical activity...
Constructing stable electrode/electrolyte interphase with fast interfacial kinetics is vital for fast-charging batteries. Herein, we investigate the that forms between a high-voltage Na3 V2 (PO4 )2 F3 cathode and electrolytes consisting of 3.0, 1.0, or 0.3 M NaClO4 in an organic carbonate solvent (47.5 : 47.5 5 mixture EC: PC: FEC) during charging up to 4.5 V at 55 °C. It found higher anion/solvent ratio electrolyte solvation structure induces anion-dominated containing more inorganic...
Sluggish kinetics and limited reversible capacity present two major challenges for layered titanates to achieve satisfactory sodium-ion storage performance at subzero-temperatures (subzero-T). To facilitate sodiation dynamics improve capacity, we proposed an additive-free anode with Sn(II) located between layers. Sn-5s in interlayer-confining Sn(II), which has a larger negative charge, will hybridize O-2p trigger charge redistribution, thereby enhancing electronic conductivity. H-titanates...
The unstable electrode–electrolyte interphase of Li-rich cathodes limit their application. Here an ultrathin Li 2 SiO 3 protective layer with super toughness and functionality is constructed on the surface by atom deposition.
Co-free Li-rich Mn-based cathode materials (LMNO) have gradually become powerful competitors with ultra-high specific discharge capacity and energy density. However, high-rate performance severe voltage decay restrict the commercial application of LMNO. Herein, LiAl5O8 acts as a templating agent to construct 3D neural-like networks in LMNO, enabling fast ion diffusion improving rate performance. Proton exchange is predominantly facilitated by process constructed generate vacancies for oxygen...
Optical computing accelerators help alleviate bandwidth and power consumption bottlenecks in electronics. We show an approach to implementing logarithmic-type analog co-processors silicon photonics use it perform the exponentiation operation recovery of a signal presence multiplicative distortion. The function is realized by exploiting nonlinear-absorption-enhanced Raman amplification saturation waveguide.